A genus of colorless, filamentous bacteria in the family THIOTRICHACEAE whose cells contain inclusions of sulfur granules. When found in decaying seaweed beds and polluted water, its presence signals environmental degradation.
A family of colorless sulfur bacteria in the order Thiotrichales, class GAMMAPROTEOBACTERIA.
Chemical groups containing the covalent sulfur bonds -S-. The sulfur atom can be bound to inorganic or organic moieties.
Processes by which phototrophic organisms use sunlight as their primary energy source. Contrasts with chemotrophic processes which do not depend on light and function in deriving energy from exogenous chemical sources. Photoautotrophy (or photolithotrophy) is the ability to use sunlight as energy to fix inorganic nutrients to be used for other organic requirements. Photoautotrophs include all GREEN PLANTS; GREEN ALGAE; CYANOBACTERIA; and green and PURPLE SULFUR BACTERIA. Photoheterotrophs or photoorganotrophs require a supply of organic nutrients for their organic requirements but use sunlight as their primary energy source; examples include certain PURPLE NONSULFUR BACTERIA. Depending on environmental conditions some organisms can switch between different nutritional modes (AUTOTROPHY; HETEROTROPHY; chemotrophy; or phototrophy) to utilize different sources to meet their nutrients and energy requirements.
Linear polymers in which orthophosphate residues are linked with energy-rich phosphoanhydride bonds. They are found in plants, animals, and microorganisms.
Inorganic salts of thiosulfuric acid possessing the general formula R2S2O3.
A mass of organic or inorganic solid fragmented material, or the solid fragment itself, that comes from the weathering of rock and is carried by, suspended in, or dropped by air, water, or ice. It refers also to a mass that is accumulated by any other natural agent and that forms in layers on the earth's surface, such as sand, gravel, silt, mud, fill, or loess. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1689)
Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical.
An element that is a member of the chalcogen family. It has an atomic symbol S, atomic number 16, and atomic weight [32.059; 32.076]. It is found in the amino acids cysteine and methionine.
Derivatives of ACETIC ACID. Included under this heading are a broad variety of acid forms, salts, esters, and amides that contain the carboxymethane structure.
An oxidoreductase that catalyzes the conversion of HYDROGEN PEROXIDE to water and oxygen. It is present in many animal cells. A deficiency of this enzyme results in ACATALASIA.
A key enzyme in the glyoxylate cycle. It catalyzes the conversion of isocitrate to succinate and glyoxylate. EC 4.1.3.1.
One of the three domains of life (the others being BACTERIA and Eukarya), formerly called Archaebacteria under the taxon Bacteria, but now considered separate and distinct. They are characterized by: (1) the presence of characteristic tRNAs and ribosomal RNAs; (2) the absence of peptidoglycan cell walls; (3) the presence of ether-linked lipids built from branched-chain subunits; and (4) their occurrence in unusual habitats. While archaea resemble bacteria in morphology and genomic organization, they resemble eukarya in their method of genomic replication. The domain contains at least four kingdoms: CRENARCHAEOTA; EURYARCHAEOTA; NANOARCHAEOTA; and KORARCHAEOTA.
An order of extremely halophilic archaea, in the kingdom EURYARCHAEOTA. They occur ubiquitously in nature where the salt concentration is high, and are chemoorganotrophic, using amino acids or carbohydrates as a carbon source.
A benign tumor, usually found in the anterior lobe of the pituitary gland, whose cells stain with acid dyes. Such pituitary tumors may give rise to excessive secretion of growth hormone, resulting in gigantism or acromegaly. A specific type of acidophil adenoma may give rise to nonpuerperal galactorrhea. (Dorland, 27th ed)
A genus of gram-negative, aerobic bacteria in the family MORAXELLACEAE, associated with processed MEAT; FISH PRODUCTS; and POULTRY PRODUCTS.
An absence of warmth or heat or a temperature notably below an accustomed norm.
A genus of gram-negative rod-shaped bacteria in the class GAMMAPROTEOBACTERIA. They are obligately acidophilic and aerobic, using reduced SULFUR COMPOUNDS to support AUTOTROPHIC GROWTH.
Usually a hydroxide of lithium, sodium, potassium, rubidium or cesium, but also the carbonates of these metals, ammonia, and the amines. (Grant & Hackh's Chemical Dictionary, 5th ed)
The outer covering of the calvaria. It is composed of several layers: SKIN; subcutaneous connective tissue; the occipitofrontal muscle which includes the tendinous galea aponeurotica; loose connective tissue; and the pericranium (the PERIOSTEUM of the SKULL).
Changes in quantitative and qualitative composition of MICROBIOTA. The changes may lead to altered host microbial interaction or homeostatic imbalance that can contribute to a disease state often with inflammation.
Tests or bioassays that measure the skin sensitization potential of various chemicals.
A chronic blistering disease with predilection for mucous membranes and less frequently the skin, and with a tendency to scarring. It is sometimes called ocular pemphigoid because of conjunctival mucous membrane involvement.
Water naturally or artificially infused with mineral salts or gases.
Therapy by various hot or warm baths in natural mineral waters, spas, or "cures". It includes not only bathing in, but also drinking the waters, but it does not include whirlpool baths (HYDROTHERAPY).
An EPITHELIUM with MUCUS-secreting cells, such as GOBLET CELLS. It forms the lining of many body cavities, such as the DIGESTIVE TRACT, the RESPIRATORY TRACT, and the reproductive tract. Mucosa, rich in blood and lymph vessels, comprises an inner epithelium, a middle layer (lamina propria) of loose CONNECTIVE TISSUE, and an outer layer (muscularis mucosae) of SMOOTH MUSCLE CELLS that separates the mucosa from submucosa.
The relationships of groups of organisms as reflected by their genetic makeup.
The subfamily of myosin proteins that are commonly found in muscle fibers. Myosin II is also involved a diverse array of cellular functions including cell division, transport within the GOLGI APPARATUS, and maintaining MICROVILLI structure.
A plant genus of the family ARECACEAE that should not be confused with ACORUS CALAMUS.
A plant genus of the family IRIDACEAE that contains IRIP, a type-1 ribosome-inactivating protein, and iridals (TRITERPENES).
The condition of accelerated and excessive GROWTH in children or adolescents who are exposed to excess HUMAN GROWTH HORMONE before the closure of EPIPHYSES. It is usually caused by somatotroph hyperplasia or a GROWTH HORMONE-SECRETING PITUITARY ADENOMA. These patients are of abnormally tall stature, more than 3 standard deviations above normal mean height for age.
A genus, commonly called budgerigars, in the family PSITTACIDAE. In the United States they are considered one of the five species of PARAKEETS.
The systematic study of the complete DNA sequences (GENOME) of organisms.
A hypnotic and sedative used in the treatment of INSOMNIA.
An island in the Lesser Antilles, one of the Windward Islands. Its capital is Fort-de-France. It was discovered by Columbus in 1502 and from its settlement in 1635 by the French it passed into and out of Dutch and British hands. It was made a French overseas department in 1946. One account of the name tells of native women on the shore calling "Madinina" as Columbus approached the island. The meaning was never discovered but was entered on early charts as Martinique, influenced by the name of St. Martin. (From Webster's New Geographical Dictionary, 1988, p734 & Room, Brewer's Dictionary of Names, 1992, p339)
Widely scattered islands in the Atlantic Ocean as far north as the AZORES and as far south as the South Sandwich Islands, with the greatest concentration found in the CARIBBEAN REGION. They include Annobon Island, Ascension, Canary Islands, Falkland Islands, Fernando Po (also called Isla de Bioko and Bioko), Gough Island, Madeira, Sao Tome and Principe, Saint Helena, and Tristan da Cunha.
A condition in which closely related persons, usually in the same family, share the same delusions.
Heat- and storage-labile plasma glycoprotein which accelerates the conversion of prothrombin to thrombin in blood coagulation. Factor V accomplishes this by forming a complex with factor Xa, phospholipid, and calcium (prothrombinase complex). Deficiency of factor V leads to Owren's disease.
A plasma protein that is the inactive precursor of thrombin. It is converted to thrombin by a prothrombin activator complex consisting of factor Xa, factor V, phospholipid, and calcium ions. Deficiency of prothrombin leads to hypoprothrombinemia.
Cylindrical epithelial cells in the innermost layer of the ENAMEL ORGAN. Their functions include contribution to the development of the dentinoenamel junction by the deposition of a layer of the matrix, thus producing the foundation for the prisms (the structural units of the DENTAL ENAMEL), and production of the matrix for the enamel prisms and interprismatic substance. (From Jablonski's Dictionary of Dentistry, 1992)
Refuse liquid or waste matter carried off by sewers.
Macrolide antifungal antibiotic complex produced by Streptomyces noursei, S. aureus, and other Streptomyces species. The biologically active components of the complex are nystatin A1, A2, and A3.
A cabinet department in the Executive Branch of the United States Government concerned with administering those agencies and offices having programs pertaining to health and human services.
The reduction or regulation of the population of noxious, destructive, or dangerous plants, insects, or other animals. This includes control of plants that serve as habitats or food sources for animal pests.
The discarding or destroying of liquid waste products or their transformation into something useful or innocuous.
The reduction or regulation of the population of mosquitoes through chemical, biological, or other means.
The reduction or regulation of the population of noxious, destructive, or dangerous insects through chemical, biological, or other means.
An indicator of body density as determined by the relationship of BODY WEIGHT to BODY HEIGHT. BMI=weight (kg)/height squared (m2). BMI correlates with body fat (ADIPOSE TISSUE). Their relationship varies with age and gender. For adults, BMI falls into these categories: below 18.5 (underweight); 18.5-24.9 (normal); 25.0-29.9 (overweight); 30.0 and above (obese). (National Center for Health Statistics, Centers for Disease Control and Prevention)
Perception of three-dimensionality.
Levels within a diagnostic group which are established by various measurement criteria applied to the seriousness of a patient's disorder.
An expression of the number of mitoses found in a stated number of cells.
A numerical system of measuring the rate of BLOOD GLUCOSE generation from a particular food item as compared to a reference item, such as glucose = 100. Foods with higher glycemic index numbers create greater blood sugar swings.
The difference between two images on the retina when looking at a visual stimulus. This occurs since the two retinas do not have the same view of the stimulus because of the location of our eyes. Thus the left eye does not get exactly the same view as the right eye.
An aspect of personal behavior or lifestyle, environmental exposure, or inborn or inherited characteristic, which, on the basis of epidemiologic evidence, is known to be associated with a health-related condition considered important to prevent.

Diversity and abundance of aerobic and anaerobic methane oxidizers at the Haakon Mosby Mud Volcano, Barents Sea. (1/15)

Submarine mud volcanoes are formed by expulsions of mud, fluids, and gases from deeply buried subsurface sources. They are highly reduced benthic habitats and often associated with intensive methane seepage. In this study, the microbial diversity and community structure in methane-rich sediments of the Haakon Mosby Mud Volcano (HMMV) were investigated by comparative sequence analysis of 16S rRNA genes and fluorescence in situ hybridization. In the active volcano center, which has a diameter of about 500 m, the main methane-consuming process was bacterial aerobic oxidation. In this zone, aerobic methanotrophs belonging to three bacterial clades closely affiliated with Methylobacter and Methylophaga species accounted for 56%+/-8% of total cells. In sediments below Beggiatoa mats encircling the center of the HMMV, methanotrophic archaea of the ANME-3 clade dominated the zone of anaerobic methane oxidation. ANME-3 archaea form cell aggregates mostly associated with sulfate-reducing bacteria of the Desulfobulbus (DBB) branch. These ANME-3/DBB aggregates were highly abundant and accounted for up to 94%+/-2% of total microbial biomass at 2 to 3 cm below the surface. ANME-3/DBB aggregates could be further enriched by flow cytometry to identify their phylogenetic relationships. At the outer rim of the mud volcano, the seafloor was colonized by tubeworms (Siboglinidae, formerly known as Pogonophora). Here, both aerobic and anaerobic methane oxidizers were found, however, in lower abundances. The level of microbial diversity at this site was higher than that at the central and Beggiatoa species-covered part of the HMMV. Analysis of methyl-coenzyme M-reductase alpha subunit (mcrA) genes showed a strong dominance of a novel lineage, mcrA group f, which could be assigned to ANME-3 archaea. Our results further support the hypothesis of Niemann et al. (54), that high methane availability and different fluid flow regimens at the HMMV provide distinct niches for aerobic and anaerobic methanotrophs.  (+info)

Insights into the genome of large sulfur bacteria revealed by analysis of single filaments. (2/15)

Marine sediments are frequently covered by mats of the filamentous Beggiatoa and other large nitrate-storing bacteria that oxidize hydrogen sulfide using either oxygen or nitrate, which they store in intracellular vacuoles. Despite their conspicuous metabolic properties and their biogeochemical importance, little is known about their genetic repertoire because of the lack of pure cultures. Here, we present a unique approach to access the genome of single filaments of Beggiatoa by combining whole genome amplification, pyrosequencing, and optical genome mapping. Sequence assemblies were incomplete and yielded average contig sizes of approximately 1 kb. Pathways for sulfur oxidation, nitrate and oxygen respiration, and CO2 fixation confirm the chemolithoautotrophic physiology of Beggiatoa. In addition, Beggiatoa potentially utilize inorganic sulfur compounds and dimethyl sulfoxide as electron acceptors. We propose a mechanism of vacuolar nitrate accumulation that is linked to proton translocation by vacuolar-type ATPases. Comparative genomics indicates substantial horizontal gene transfer of storage, metabolic, and gliding capabilities between Beggiatoa and cyanobacteria. These capabilities enable Beggiatoa to overcome non-overlapping availabilities of electron donors and acceptors while gliding between oxic and sulfidic zones. The first look into the genome of these filamentous sulfur-oxidizing bacteria substantially deepens the understanding of their evolution and their contribution to sulfur and nitrogen cycling in marine sediments.  (+info)

Physiological adaptation of a nitrate-storing Beggiatoa sp. to diel cycling in a phototrophic hypersaline mat. (3/15)

The aim of this study was to investigate the supposed vertical diel migration and the accompanying physiology of Beggiatoa bacteria from hypersaline microbial mats. We combined microsensor, stable-isotope, and molecular techniques to clarify the phylogeny and physiology of the most dominant species inhabiting mats of the natural hypersaline Lake Chiprana, Spain. The most dominant morphotype had a filament diameter of 6 to 8 microm and a length varying from 1 to >10 mm. Phylogenetic analysis by 16S rRNA gene comparison revealed that this type appeared to be most closely related (91% sequence identity) to the narrow (4-microm diameter) nonvacuolated marine strain MS-81-6. Stable-isotope analysis showed that the Lake Chiprana species could store nitrate intracellularly to 40 mM. The presence of large intracellular vacuoles was confirmed by fluorescein isothiocyanate staining and subsequent confocal microscopy. In illuminated mats, their highest abundance was found at a depth of 8 mm, where oxygen and sulfide co-occurred. However, in the dark, the highest Beggiatoa densities occurred at 7 mm, and the whole population was present in the anoxic zone of the mat. Our findings suggest that hypersaline Beggiatoa bacteria oxidize sulfide with oxygen under light conditions and with internally stored nitrate under dark conditions. It was concluded that nitrate storage by Beggiatoa is an optimal strategy to both occupy the suboxic zones in sulfidic sediments and survive the dark periods in phototrophic mats.  (+info)

Video-supported analysis of Beggiatoa filament growth, breakage, and movement. (4/15)

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Methylotrophy in freshwater Beggiatoa alba strains. (5/15)

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Spatial structure and activity of sedimentary microbial communities underlying a Beggiatoa spp. mat in a Gulf of Mexico hydrocarbon seep. (6/15)

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Sulfide induces phosphate release from polyphosphate in cultures of a marine Beggiatoa strain. (7/15)

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High rates of denitrification and nitrate removal in cold seep sediments. (8/15)

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Beggiatoa is a genus of bacteria in the order Thiotrichales. They are named after the Italian medic and botanist F. S. Beggiato. The organisms live in sulfur-rich environments. During his research in Anton de Barys laboratory of botany in 1887, Russian botanist Sergei Winogradsky found that Beggiatoa oxidized hydrogen sulfide (H2S) as an energy source, forming intracellular sulfur droplets. Winogradsky referred to this form of metabolism as inorgoxidation (oxidation of inorganic compounds). The finding represented the first discovery of lithotrophy.[2][3] Two species of Beggiatoa have been formally described: the type species Beggiatoa alba, and Beggiatoa leptomitoformis, the latter of which was only published in 2017.[4] ...
ePIC (electronic Publication Information Center) is the official repository for publications and presentations of Alfred Wegener Institute for Polar and Marine Research (AWI)
Hydrocarbon seeps are typically viewed as seafloor phenomena: with vast quantities of juicy organic molecules streaming out of the crust, sediment-hosted microbes are the primary recipients of the energetic windfall. But at particularly high-flow seeps, hydrocarbons can emerge into the bottom water, and, running the gauntlet of benthic aerobic heterotrophs, even reach the waters surface layers. A new study from Nigel Dsouza and colleagues demonstrates that these seafloor features actually result in measurable increases in surface-water microbial activity. By quantifying chlorophyll concentrations, the team shows that seafloor venting of many kinds may have a larger effect on the surface world than previously believed.. Abstract below, full paper [here].. Natural hydrocarbon seeps occur on the sea floor along continental margins, and account for up to 47% of the oil released into the oceans1. Hydrocarbon seeps are known to support local benthic productivity2, but little is known about their ...
All strains of freshwater Beggiatoa demonstrate the ability to grow heterotrophically in the presence of oxygen, yet this growth tends to be limited by the lack of catalase in Beggiatoa species. The lack of catalase is compensated for by the organisms ability to oxidize sulfide, which detoxifies metabolically-formed hydrogen peroxide in the absence of oxygen. Sulfide oxidation provides the bacteria with energy for growth on acetate, and is the sole energy source for at least one marine species. The cells are disk-shaped and are motile by a gliding motion. They can exist either as individual cells or as part of a tightly connected filament. ...
Phenotypic and phylogenetic comparisons of the generaBeggiatoa and Thioploca. Until recently, massive natural occurrence of filaments ofBeggiatoa or Thioploca spp. have been identified based solely on their characteristic morphologies by using (i) the presence (Thioploca spp.) or absence (Beggiatoa spp.) of a single sheath around multiple filaments and (ii) filament widths as the major criteria (Table 1). No strain of a wide marine Beggiatoa orThioploca sp. has been obtained in pure culture. The physiological properties of these genera can, therefore, be determined only from observations of natural populations. Such studies have revealed several metabolic similarities. These similarities include chemoautotrophic carbon metabolism (20, 24, 29, 31), sulfide oxidation (20, 25), and concentration of nitrate in the vacuolate cells at levels several-thousand-fold above ambient nitrate levels (5, 24). Teske et al. (38) described the phylogenetic position of vacuolate, unusually wideThioploca filaments ...
The University of Alaska Fairbanks said Nov. 21 that researchers from the university are mapping oil and gas seeps off Alaska s coast to better understand hydrocarbon resources and seafloor ecosystems. The work is being funded by the U.S. Bureau of Ocean Energy Management. At hydrocarbon seeps, flui...
Undersea cable, assembly of conductors enclosed by an insulating sheath and laid on the ocean floor for the transmission of messages. Undersea cables for transmitting telegraph signals antedated the invention of the telephone; the first undersea telegraph cable was laid in 1850 between England a
The paper is aimed at a methodological development of change-point detection, applicable in dentifying abrupt changes in temporal or spatial data sequences. In earlier papers we developed a method for detecting a change in the parameters of a discrete distribution, with the simultaneous estimation of the (deterministic but unknown) distribution parameters before and after the change. In this paper we not only extend this method to the case of normal distributions, but also provide a new algorithm for the iterative refining of the estimation of the change-point, based on a cleaning of mixed-up parts of the samples. The appropriate size of reduced part of the sample is analytically calculated for the case of normal distributions. This cleaning is combined with our original change-point detection method. Our new algorithm is not only validated on artificial data, but also applied to a real environmental data set collected and analysed by other authors in a seafloor observatory. Our ...
In their June 2015 Best Practice magazine, bpac provide five tips for primary care teams to keep older people healthy and out of hospital during winter.. To read the article in full text, go to: http://www.bpac.org.nz/BPJ/2015/June/tips.aspx. ...
Places where hydrocarbons naturally seep from the seafloor provide a way to study how oil spills in the ocean change over time. But scientists need vehicles like Sentry, Jason, or Alvin to get a close-up look.
The data shown below were compiled from readership statistics for 1 Mendeley reader of this research output. Click here to see the associated Mendeley record. ...
Håkon Mosby Mud Volcano (HMMV, SW Barents Sea slope, 1280 m) is one of the numerous cold methane-venting seeps existing along the continental margins. Analyses of videoguided core samples revealed extreme differences in the diversity and density of the metazoan meiobenthic communities associated with the different sub-habitats (centre, microbial mats, Pogonophora field, outer rim) of this mud volcano. Diversity was lowest in the sulphidic, microbial mat sediments that supported the highest standing stock, with unusually high densities (11 000 ind. 10 cm-2) of 1 nematode species related to Geomonhystera disjuncta. Stable carbon isotope analyses revealed that this nematode species was thriving on chemosynthetically derived food sources in these sediments. Ovoviviparous reproduction has been identified as an important adaptation of parents securing the survival and development of their brood in this toxic environment. The proliferation of this single species in exclusive association with ...
Training Divers to Fight Undersea Perils. USING a special dry-land pressure tank, Navy officials have perfected a method of training deep-sea divers to combat perils hundreds of feet beneath the surface of the sea.. YOUNG men who wish to become deep-sea divers can learn the fine points of the profession without getting any closer to the ocean than Washington, D. C, thanks to scientists who have developed a system of pressure-tank training which enables divers to stand on the bottom of a tank twelve feet deep and experience exactly the same pressure and temperature conditions that obtain in the ocean at depths of 200 to 300 feet. Deep-sea diving is a profession which demands a sturdy body, a steady nerve and clear judgment, but for young men who wish to choose a life work which holds forth promise of adventure, diving offers thrills second to none.. At Washington navy yard, a diving school whose personnel includes 25 enlisted men and 6 officers is now in session. Tyros are converted into skilled ...
Connecting countries by undersea cables by Google and Facebook, Zerotrust to go passwordless, Twitter services down, Apple VR rumors
Klien, S; Spiegel, M; Engelhardt, K; Schmidauer, C; Ulmer, H; Diepers, M; Schmutzhard, E; Mutzbauer, TS (Undersea and Hyperbaric Medical Society, Inc., 2005) ...
NNaval Special Warfare requires a low-power, light-weight acoustic intercept receiver capable of detecting and identifying the acoustic signals of manned or unmanned undersea vehicles. Traditional acoustic receivers in use on current submarine platforms are large, cumbersome and feature-rich. The Special Warfare vehicles require a much smaller, self-contained system without all the submarines capabilities. This system must operate with higher frequency operational processing bands, operationally intuitive operator / machine interface (OMI) that function under extreme in-water situations. Signal Processing must achieve high sensitivity with low false alarm rates requiring full spectrum, spectral redundant based signal processing techniques be considered to enhance detection and bearing estimates within limited space/ weight/ volume allocations. Partnered with Pennsylvania State University, our solution leverages acoustic previous acoustic intercept experience to design a low risk, operationally ...
You searched for: Exhibit Tags access Remove constraint Exhibit Tags: access Creator Kantrowitz, Arthur Remove constraint Creator: Kantrowitz, Arthur Format Text Remove constraint Format: Text Periodical Surgery Remove constraint Periodical: Surgery Publisher Mosby, Inc. Remove constraint Publisher: Mosby, Inc. Subject Coronary Circulation Remove constraint Subject: Coronary Circulation ...
You searched for: Exhibit Tags access Remove constraint Exhibit Tags: access Creator Kantrowitz, Arthur Remove constraint Creator: Kantrowitz, Arthur Genre Articles Remove constraint Genre: Articles Publisher Mosby, Inc. Remove constraint Publisher: Mosby, Inc. Subject Blood Pressure Remove constraint Subject: Blood Pressure ...
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Delivery type: After successful payment, you will be redirected to the download page, now click on the download button and you will be able to download the PDF file. You will also receive the download link on your mail. If you have any query or need any support please contact us on 8882594905. Every student from IGNOU who are in search for the IGNOU BPAC 132 solved assignment प्रशासनिक विचारक (Prashaasinik Vichaarak), so you are at a suitable spot.. ...
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Termo Records I remember once as a young man when I practised the noble art of rock-journalism, I went to a small gathering held by the rock magazine I was writing for. Norwegian The Last James and a Scottish pop band that I dont remember the name of was on the bill. The Last James (they had cunningly loaned their name from the by now newly deceased German orchestra leader James Last...) was fronted by Lars Pedersen, well-known as a member of the avant-exploring new wave band Holy Toy and his solo alter-ego project When that he has kept going to this very day. The band had just released their second album so this must have been round 1993. By that time Last James had been augmented by very well-known Norwegian pop-poet Lars Lillo Stenberg of deLillos fame and the lesser known Haakon Ellingsen. The latter seemed young and unexperienced at the time, at least compared to the other two, but he had written five of the most excellent songs of the somewhat uneven album. The two other more profiled ...
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Conventional wisdom suggests that seamounts harbour high levels of biodiversity and endemism, play important roles in marine biogeography, are hotspots of biological carbon processing, and support substantial fisheries. However, since fewer than 300 seamounts have been thoroughly sampled, these generalizations remain largely untested. This has provided the motivation for a number of seamount-focused research projects in recent years, including CenSeam, a field project within the Census of Marine Life. This issue presents some of the research output facilitated by CenSeam. Here we summarize the main findings and provide a précis of future research directions highlighted by contributors to the issue. Recent studies show that seamounts can have comparable levels of benthic diversity and endemism to continental margins, but their communities also include a distinct composition of species that can attain higher biomass. Reported geographic differentiation among seamount communities suggests limited ...
Its approaching midnight at the bottom of the English Channel and a team of eager tunnel moles stands poised for a busy nights work.
Photoshops Twirl filter is no longer a bastion for Internet creeps: The NY Times shares some (but not all) details of how Interpol was able to reverse the common image distortion. Now theyre seeking the publics help in catching the guy. [Via Leon Brown] (Through some weird cosmic alignment of forces, Google Alerts happened to pop up a tutorial on digitally obscuring faces at just the same time ...
UNCW Ocean Observing: Providing Infrastructure, Data, and Products to Support State and Federal Agency Needs. Slideshow 4451752 by burt
Shallow water blackout is by far the main cause of fatalities from freedive spearfishing.. The WAUC is providing all members with the oppurtunity to apply for a subsidized freedive course run by Erez Beatus of Apnea Australia. www.apneaaustralia.com.au. Cost to successful applicants will be $225.00, normal cost $550. There are 22 places up for grabs.. The knowledge gained from the course will assist in the awareness of the dangers of freediving. The aim is to develop and foster a culture and practice of safe freediving. Graham has emailed all members the application forms, if you havent received your copy, message me and I will pass it on. You must be a current financial member to be eligible.. Joe. Freediving Leadership Course Poster. WAUC Leadership Application Part 1. WAUC Leader Course Application Part 2. ...
From the English Channel to the Pacific, one band of volunteer divers look for the remains of American M.I.A.s. I joined and discovered this mission can be perilous - even deadly.
The researchers also discovered that the physical extent of these groups varied depending on the size of the organisms. Smaller animals generally stayed closer to their neighbors, forming smaller groups. Most groups were about 100-animals wide in the horizontal dimension, regardless of whether they consisted of fish, squid, or shrimp. The spacing between the animals in each group was also very consistent, each animal staying at least one body length from its nearest neighbors.. The researchers speculate that these groups, consisting of lots of similar animals spaced evenly apart, could confuse visual predators such as dolphins, which target one animal at a time. This effect has previously been observed for schools of fish surrounded by open water near the sea surface, but has never before been seen in animals within deep scattering layers, where the schools are surrounded by other schools, and there is little or no sunlight. As Benoit-Bird pointed out, Schooling was previously thought to occur ...
The woodtick sucks the blood of the dog, but the germ, being so very small, goes right into the blood of the body, and there it has many children. In those days there would be as many as a billion-a crab-shell, please-as many as that crab-shell in one mans body. We called germs micro-organisms. When a few million, or a billion, of them were in a man, in all the blood of a man, he was sick. These germs were a disease. There were many different kinds of them-more different kinds than there are grains of sand on this beach. We knew only a few of the kinds. The micro-organic world was an invisible world, a world we could not see, and we knew very little about it. Yet we did know something. There was the bacillus anthracis; there was the micrococcus; there was the Bacterium termo, and the Bacterium lactis-thats what turns the goat milk sour even to this day, Hare-Lip; and there were Schizomycetes without end. And there were many others….. Here the old man launched into a disquisition on germs ...
B-type natriuretic peptide (BNP) assays have become important aids in the diagnosis and perhaps more importantly, the exclusion of heart failure. Normal levels virtually exclude the diagnosis of heart failure and very high levels effectively confirm the diagnosis; intermediate levels require confirmation by echocardiography.. These peptides are released into the circulation by distended ventricular walls as the active peptide, BNP, and the inactive peptide, NT-proBNP. Assays may be performed on either but there are no conversion factors for comparison between these measures. Furthermore, there is variability in the type of assay used and availability of testing across the country.. ...
As a city, we have collectively agreed that Horton Boulevard should be a designated Bike Boulevard, and our definition of this type of thoroughfare requires it to aim for under 3,000 vehicle trips per day. I appreciate the time and service of our community members who give their time and influence to our BPAC. I think they have given serious thought to their recommendation of Level 5 calming, and that given their task of effectively seeking solutions to the overage of vehicle trips on Horton, I understand the logic behind the recommendation. However, I think it behooves us to discuss Level 4 options that will allow cars and bikes on Horton at this time, with the knowledge that the BPAC may recommend Level 5 in the future, should Level 4 calming measures not get us to our goals ...
This includes a comparison of your volume of prescriptions and laboratory tests between 2009 and 2010, as well as an overview of the pharmaceuticals and laboratory tests you use most often.. ...
Coleman RL, Ramirez PT, Gershenson DM. Neoplastic diseases of the ovary: Screening, benign and malignant epithelial and germ cell neoplasms, sex-cord stromal tumors. In: Lentz GM, Lobo RA, Gershenson DM, Katz VL, eds. Comprehensive Gynecology. 6th ed. Philadelphia, PA: Elsevier Mosby; 2012:chap 33.. Katz VL. Benign gynecologic lesions: vulva, vagina, cervix, uterus, oviduct, ovary, ultrasound imaging of pelvic structures. In: Lentz GM, Lobo RA, Gershenson DM, Katz VL, eds. Comprehensive Gynecology. 6th ed. Philadelphia, PA: Elsevier Mosby; 2012:chap 18. ...
The Justice Department wont say whether the blowout preventer that failed to stop oil from gushing from BPs undersea well into the Gulf of Mexico is on its way to shore.
All right, weve got a couple more pieces of announcement news for you today, along with a TON of new cover artwork.... The news is that Shout! Factory has officially set the Matinee: Collectors Edition as their next Shout Select Blu-ray release on 12/12, along with the comedy The Trip to Spain, starring Steve Coogan and Rob Brydon. Interestingly, Shout! has also announced a new 4K Ultra HD title for release that same day: IMAX: Mysteries of China. They also have Howard Lovecraft and the Undersea Kingdom coming on 12/5.. Meanwhile, Scream Factory has set American Gothic (1988) for Blu-ray release on 12/19, and has the Hell Night: Collectors Edition coming on BD on 12/12, as well as the Silent Night, Deadly Night: Collectors Edition on 12/5, as we mentioned yesterday. [Read on here…]. ...
The anaerobic oxidation of methane (AOM) is responsible for oxidizing nearly all of the 70.3 to 85.3 Tg of methane produced in anoxic marine sediments per year globally (50). In addition to its importance in controlling greenhouse gases, AOM has implications for investigations of early life on Earth, since anaerobic methane oxidizers and methanogens comprise a methane cycle suitable for oxidant-poor, early-Earth-like environments (19). The presence of isotopically light organic carbon in the Archean Eon suggests that AOM may have been an important microbial pathway on early Earth (19).. Although the organisms responsible for AOM in marine sediments are not yet isolated in pure culture, stable carbon isotopic studies and environmental genomic studies have shown that the process relies on archaea capable of reverse methanogenesis that often form close associations with sulfate-reducing bacteria (SRB) (5, 14, 18, 21). The archaeal anaerobic methane oxidizers (ANMEs) fall into three phylogenetic ...
Optogenetics enables manipulation of biological processes with light at high spatio-temporal resolution to control the behavior of cells, networks, or even whole animals. In contrast to the performance of excitatory rhodopsins, the effectiveness of inhibitory optogenetic tools is still insufficient. Here we report a two-component optical silencer system comprising photoactivated adenylyl cyclases (PACs) and the small cyclic nucleotide-gated potassium channel SthK. Activation of this PAC-K silencer by brief pulses of low-intensity blue light causes robust and reversible silencing of cardiomyocyte excitation and neuronal firing. In vivo expression of PAC-K in mouse and zebrafish neurons is well tolerated, where blue light inhibits neuronal activity and blocks motor responses. In combination with red-light absorbing channelrhodopsins, the distinct action spectra of PACs allow independent bimodal control of neuronal activity. PAC-K represents a reliable optogenetic silencer with intrinsic ...
A France-Telecom Orange fiber-optics cable ship, responsible for maintaining and laying undersea cables, caught fire off of Namibias Skeleton Coast.
For many microscopy applications, millimeters-long free working distances (LWD) are required. However, the high resolution and contrast of LWD objectives operated in air are lost when introducing glass and/or liquid with the sample. We propose to use spatial light modulation to correct for such beam aberrations caused by refractive index mismatches. Focusing a monochromatic laser beam with a 10 mm working distance air objective ( ...
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References: Presidential Guest Speaker Lecture. International Society Hip Arthroscopy. Boston,MA. September 28, 2012. Johnson LL. Arthroscopic Surgical Principles and Pracatice: C.V. Mosby. 1986. McCarroll, H. Relton. Unexpected Roads to Greatness. J Bone Joint Surg Am. 1959;41:546-552.. Johnson, L. L.: Needlescope. In Symposium on Arthroscopy and Arthrography of the Knee, pp. 36-43.St. Louis, C. V. Mosby, 1978.. Johnson, L. L.: Joints Other than the Knee. In Symposium on Arthroscopy and Arthrography of the Knee, pp. 249-260.St. Louis, C. V. Mosby, 1978.. Johnson, L. L., Becker, R. L.: Role of the Assistant in Arthroscopy. In Symposium on Arthroscopy and Arthrography of the Knee, pp. 274-281.St. Louis, C. V. Mosby, 1978.. Johnson, L. L.: Comprehensive Arthroscopy of the Knee.St. Louis, C. V. Mosby, 1977.. Johnson, L. L.: Diagnostic and Surgical Arthroscopy of the Shoulder.St. Louis, C. V. Mosby, 1993.. Detrisac, D. A., Johnson, L. L.: Arthroscopic Shoulder Capsulorrhaphy using Metal Staples. ...
I nitrates are creeping up. I am looking for something to assist in temporary nitrate removal until my refugium is running. Has anyone used something you recommend? Anyone ever tried AZ- NO3 Nitrate
Article Biological nitrate removal from water resources. During the recent decades, the increasing trends in nitrate ion concentration in ground water sources ...
Download Image. (Reproduced from UK Water Projects On-Line 2012). During AMP4 (2005 to 2010) around half of all new builds of nitrate removal plant in the UK water industry used ACWA Services NITREAT® process, and in AMP5 at least 90% of the new plant installed has adopted this system. Taking advantage of the early operational experience and in close collaboration with its utility partners it has proved possible to optimise the process to provide significant Capex, Opex and embedded CO2 gains.. The full version is available as a download:. ...
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Fed into the three phase power method, states Dr. Gnther Wanninger. Consortium partner Prysmian Cables Methods, a former Pirelli subsidiary, supplied the babyliss pro perfect curl undersea cables. The interconnector tends to make it possible to send up to 600MW of energy from Tasmania to Victoria. nike air max 90 pas cher homme Transmission works in the opposite path as well, however, which indicates Tasmania is able to tap into the continental power grid throughout dry periods when its rivers do not contain sufficient water to fill its dams. Another benefit of HVDC systems is that they require only two cables as opposed to the three required for 3 phase current transmission. As air max 90 pas cher a outcome, an HVDC overhead line also requires much less area. Basslink is not only the worlds longest HVDC undersea cable hyperlink it also has a number of other extraordinary features. For example, semiconductor components thyristors act as energy converters, which are controlled by ten mW laser ...
The light activation of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) in vivo requires the presence of Rubisco activase, a nuclear-encoded chloropla
Passive cooling is wonderful, and really drops the energy footprint of a data center, albeit a very small one which is being tested. Scaled up, I can think of another big impact: property taxes. Does anyone know what the law says about dropping a pod in the ocean? As far as I can tell, laying undersea cabling is expensive, but once installed there are no landlords holding out their hands for a monthly extraction. Rent aside, taking up space with windowless buildings sucking huge amounts of electricity isnt going to win hearts and minds of the neighborhood. Undersea real estate make sense there too.. But its fun to play Devils Advocate, and this one immediately raised my eyebrow. I read as much Sci Fi as time allows, and am always interested to see which authors are registering the best technology predictions. This is the second time in short order that I turn to [William Hertlings] work. Back in November, Google announced a project to add predictive responses to Gmail. This parallels the ...
DNA is like an underwater cable. This pivotal idea occurred to mechanical engineer Sachin Goyal while he was a researcher at the University of Michigan. Working in the lab of Noel Perkins, Goyal was investigating the dynamics of steel cables mounted with acoustic sensors that are used by the U.S. military to monitor enemy submarines. The cables are attached to the seabed on one end, and to surface buoys on the other ...
Divers have retrieved one of the oldest skeletons in the Americas from a deep cave in Mexico-a ritually placed, 10,000-year-old young man.
NSFs mission is to advance the progress of science, a mission accomplished by funding proposals for research and education made by scientists, engineers, and educators from across the country.
A huge beam planted into sea and the height 15meter above seawater. Total length 30m. Using pulley system, both side left and right hung 2 equal weight drum. The whole picture should be similar to Elevator methodQuestion: How counterbalance and pull…
DNA is like an underwater cable. This pivotal idea occurred to mechanical engineer Sachin Goyal while he was a researcher at the University of Michigan. Working in the lab of Noel Perkins, Goyal was investigating the dynamics of steel cables mounted with acoustic sensors that are used by the U.S. military to monitor enemy submarines. The cables are attached to the seabed on one end, and to surface buoys on the other ...
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Lying just a few feet underwater a mere 200 feet off the coastline near the resort town of Limassol, the harbour of Amathus will soon be Cyprus newest tourist attraction where adventurous holidaymakers can snorkel over its submerged stone remains. | Travel
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.
The American Society for Microbiology (ASM) is the oldest and largest single life science membership organization in the world. Membership has grown from 59 scientists in 1899 to more than 39,000 members today, with more than one third located outside the United States. The members represent 26 disciplines of microbiological specialization plus a division for microbiology educators.
Hi my nitrates arent high and I know water changes are the best thing for nitrates. But I was looking round the Internet and came across a couple of products that seem to good to be true. One is
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On January 4, 1855, Mambajao was separated from Catarman, and by July 6 that year it was proclaimed as a town, with Fr. Valero Salvo as its first parish priest.[6] On July 17, 1864, tremors were felt across the town, which were signs of an ongoing activity within an undersea volcano near Catarman. By May 1, 1871, the volcano erupted, decimating the town of Catarman, which lead to almost all of its inhabitants moving to Mambajao.[6] In January 1872, Barrio Agojo was transferred from Guinsiliban to Mambajao.[6] The towns principal crop in the 19th century was abaca, while coffee and cacao were mostly produced for local consumption.[6] Sporadic fires were started from April 13, 1865 until 1881 by people attempting to burn down the town.[6] By the 1880s, the town had become cosmopolitan, for its population then included Spaniards, Tagalogs, Cebuanos, Leyteños, Samareños, Ilocanos, and others in addition to Camigueños and Boholanos.[6] In 1942, the Japanese forces landed in the town of Mambajao. ...
Although the vast majority of life on Earth lives in mesophyllic (moderate) environments, a few organisms, most of them microbes, have managed to colonise extreme environments that are unsuitable for most higher life forms. There are bacteria, for example, living in Lake Whillans, half a mile below the ice of Antarctica; in the absence of sunlight, they must rely on organic material from elsewhere, perhaps decaying matter from glacier melt water or minerals from the underlying rock.[25] Other bacteria can be found in abundance in the Mariana Trench, the deepest place in the ocean and on Earth; marine snow drifts down from the surface layers of the sea and accumulates in this undersea valley, providing nourishment for an extensive community of bacteria.[26]. Other microbes live in habitats lacking in oxygen, and are dependent on chemical reactions other than photosynthesis. Boreholes drilled 300 m (1,000 ft) into the rocky seabed have found microbial communities apparently based on the products ...
The heart of this extraordinary receiver was an ingenious ultrasound system for modulating the light scanned onto the screen. This type of optical diffraction cell seems to have been devised simultaneously in 1932 by the American team of Debye and Sears; and by the French scientists Lucas and Biquard. However its full practical application to light modulation in television is due to J H Jeffree, the chief engineer of the British firm, Scophony Limited. Formed in 1930 by Solomon Sagall, Scophonys main emphasis lay in developing novel methods of mechanical TV scanning to produce large screen images. J H Jeffree championed the usage of ultrasonic light modulators for this purpose, as a result of which this modulator became known, at least in the late 1930s, as The Jeffree Cell. In this TV application, the cell was lengthened to act as a sort of ultrasonic/optical delay line. As the ultrasound modulated by the incoming video signal travelled along the liquid in the cell, the device optically ...
Two miles below the surface of the ocean, researchers from the University of Hawaii at Mānoa and colleagues discovered new microbes that breathe sulfate -- that is, gain energy by reacting sulfate with organic (carbon-containing) compounds.. The microbes, which have yet to be classified and named, exist in massive undersea aquifers -- networks of channels in porous rock beneath the ocean where water continually churns. About one-third of the Earths biomass is thought to exist in this largely uncharted environment.. Using DNA sequencing, a team of UH Mānoa researchers has spent the last few years accumulating strong evidence that this area of the deep subsurface harbors unique microorganisms. Its a massive biome dominated by microbes that scientists know very little about. Thats what makes this recent work exciting - while we suspected it in the past, we now have DNA sequence data linking sulfate reduction to some of these new and novel microorganisms, said Michael Rappé, associate ...
Note: ISO 10218 does not apply to non-industrial robots although the safety principles established in ISO 10218 may be utilized for these other robots. Examples of non-industrial robot applications include, but are not limited to: undersea, military and space robots; tele-operated manipulators; prosthetics and other aids for the physically impaired; micro-robots (displacement ,1 mm); surgery or healthcare; and service or consumer products ...
Aug 5, 2020 - Pin cute kittens, G rated environment. The board is watched closely for content. I check often, but please let me know if a pin breaks the rules so I can remove it. Thank you and God bless! Lance Olsen [email protected] The Sharky Marky picturebook series is where inspiration, education and kindness collide with an undersea rip-roaring car racing adventure! ages: 3-7 by Lance Olsen Sharky Marky and the Big Race and Sharky Marky and the Scavenger Hunt:An Alphabetic Adventure . See more ideas about Kittens, Crazy cats, Kittens cutest.
French robotics and undersea systems specialist ECA is showcasing its capability in unmanned mine countermeasures (MCM) at NAVDEX.
The objective of the HOTPLUME project is to improve understanding of the spatial and temporal dynamics of deep hydrothermal systems and determine the importance of hydrothermal gases relating to mineral resources and to what extent they are involved in major biogeochemical cycles.. Over the past decade, the need for a tool to explore vast distances of the deep oceans has led to the development of autonomous undersea platforms such as AUVs. Combined with appropriate in-situ chemical sensors, they are able not only to detect the presence of hydrothermal activity with considerable precision but also to measure the flows within rising and steady-state hydrothermal plumes and map the distribution of gases within the plume.. HOTPLUME will involve equipping AUVs with an in-situ mass spectrometer to quantify gas concentrations and flow and determine the chemical, physical and potentially biological processes controlling the behaviour and future of the gases dissolved in the plumes.. The resulting ...
Help Wanted: SpongeBob applies for a job at the local burger place, The Krusty Krab - his life long dream is to work there, but can he prove to Mr. Krabs and Squidward that hes worthy? He will have to prove a lot. Reef Blowers: SpongeBob tries to rid his front lawn of a pesky clam shell. Which like usual annoys squiard becuase all the mess ends up on his lawn. Tea at the Treedome: SpongeBob meets a squirrel named Sandy, who invites him over to her undersea treedome for tea one afternoon. Only problem is, its inside a waterproof treedome, and our spongy hero runs the risk of drying out completely if he attends, but with the help of Patrick he helps Spongebob almost get through it until spongebob wants to leave the Patrick comes in and the both get dried out ...
BP said Sunday that it is pleased with how the operation to place a new cap on its ruptured undersea well is proceeding. Officials hope the containment cap will stop oil from gushing into the Gulf. But while robots replace the old cap, crude is flowing freely.
Brain implants may allow humans to remotely guide some shark behavior. The work could create the next generation of stealthy undersea spies.
01 Drift Dive 02 Endless Ladder 03 [banter - home] 04 Crest 05 [banter - Undersea] 06 Zelda 07 [banter - charitywater.org] 08 Rolled Together 09 ...
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Bottle diving! I did 3000 dives before I ever picked up a bottle. I burned through miles of velvia 50 film and identifies all those undersea critters.....then i found my first Hutchison blob top.. such a fun andventure collecting junk from the past!! If you want to dive in Tacoma some Wednesday night, let me show you my secret spots ...
Diving Medicine is a specialized area of medical science dealing with the biological effects of the undersea environment on health and safety. - Edmond Kay, M.D., Dive Physician for the University of Washington Diving Safety Program.
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http://img697.imageshack.us/img697/6166/0801666104.jpg Applied Veterinary Histology, 3rd Edition By William J. Banks Hardcover: 527 pages Publisher: C.V. Mosby; Edition: Third Edition (January 15, 1993) Language: English
and Beggiatoa sp. from a depth of 1.5 m to the opening of the springcave. These together with the bacterium species play an ...
and Beggiatoa spp. which reduce NO3− and/or NO2− to NH4+ using reduced sulfur. Denitrification and anammox account for about 30 ...
... is a genus of filamentous sulfur-oxidizing bacteria, related to the genera Beggiatoa and Thioploca. They are usually ... Larkin, J M; Strohl, W R (1 October 1983). "Beggiatoa, Thiothrix, and Thioploca". Annual Review of Microbiology. 37 (1): 341- ...
Some filamentous bacteria (e.g., Beggiatoa) were originally seen as algae. Furthermore, groups like the apicomplexans are also ...
Also present are gliding Beggiatoa filaments (1-4 mm wide) that are non-pigmented but contain highly refractive intracellular ... Sulfide-oxidizing bacteria, dominated by Beggiatoa spp., are present in well-developed bands and exhibit visible vertical ... migrations within the band matrix (Richardson, 1996; Viehman and Richardson, 2006). When present on the band surface Beggiatoa ...
... some Beggiatoa, some Nitrobacter spp., Wolinella (with H 2 as reducing equivalent donor), some Knallgas-bacteria, some sulfate- ... A classic example of a sulfur-oxidizing bacterium is Beggiatoa, a microbe originally described by Sergei Winogradsky, one of ...
Among the heterotrophic SOB are included species of Beggiatoa that can grow mixotrophically, using sulfide to obtain energy ( ... Burton SD, Morita RY (December 1964). "Effect of Catalase and Cultural Conditions on Growth of Beggiatoa". Journal of ...
For example, benthic sulfur bacteria in genera such as Beggiatoa and Thioploca inhabit anoxic sediments on continental shelves ... "Biological and chemical sulfide oxidation in a Beggiatoa inhabited marine sediment". The ISME Journal. 1 (4): 341-353. doi: ...
Formerly, some bacteria, like Beggiatoa, were thought to be colorless Cyanobacteria. Stromatolites are layered biochemical ...
... nonpigmented mats were found to be an autotrophic sulfur bacteria Beggiatoa species, and the orange mats possessed an ... "Spatial Structure and Activity of Sedimentary Microbial Communities Underlying a Beggiatoa spp. Mat in a Gulf of Mexico ... of the genera Thioploca and Beggiatoa, and of "macrobacteria" including a diversity of phenotypes), protists (ciliates, ...
Hinck, Susanne (2008). "Eco-physiological, chemotactic and taxonomic characterization of hypersaline Beggiatoa originating from ...
Sergei Winogradsky discovers the first known form of lithotrophy during his research with Beggiatoa. The Petri dish is created ...
Other common species are Thiothrix and Beggiatoa, which is of particular importance because of its ability to fix nitrogen. ... Sulfur oxidizing species include and the genera of Thiomicrospira, Halothiobacillus, Beggiatoa, Persephonella, and Sulfurimonas ... Beggiatoa, zetaproteobacterium, and gammaproteobacterial endosymbionts of tubeworms, bivalves, and gastropods. The Reductive ... major symbionts Allochromatium Thiomicrospira Thioalkalivibrio Methylococcaceae Beggiatoa Thioploca Deltaproteobacteria - ...
He reported that Beggiatoa oxidized hydrogen sulfide (H2S) as an energy source and formed intracellular sulfur droplets. This ... Winogradsky discovered the first known form of lithotrophy during his research with Beggiatoa in 1887. ... in Beggiatoa). His work on the Nitrogen cycle including The identification of the obligate anaerobe Clostridium pasteurianum is ...
Thioploca and Beggiatoa cells are much smaller and grow tightly stacked on each other in long filaments. Their shape is ... They were actually looking for other recently found sulfide-eating marine bacteria, Thioploca and Beggiatoa. They ended up with ... Although Thiomargarita is closely related to Thioploca and Beggiatoa in function, their structures proved to be vastly ...
Large vacuoles are found in three genera of filamentous sulfur bacteria, the Thioploca, Beggiatoa and Thiomargarita. The ...
... of the soil bacterium Beggiatoa". The Journal of Biological Chemistry. 286 (2): 1181-8. doi:10.1074/jbc.M110.185496. PMC ...
Small but potent PACs were identified in the genome of the bacteria Beggiatoa (bPAC) and Oscillatoria acuminata (OaPAC). As ... of the Soil Bacterium Beggiatoa". Journal of Biological Chemistry. 286 (2): 1181-1188. doi:10.1074/jbc.M110.185496. ISSN 0021- ...
In modern oceans, Hydrogenovibrio crunogenus, Halothiobacillus, and Beggiatoa are primary sulfur oxidizing bacteria, and form ...
" ("Fäulnisbewohner"), and beggiatoa alba. The latter stems from "the outlets of the sugar factory" ("den Ausflüssen der ...
... and Beggiatoa are primary sulfur oxidizing bacteria, and form chemosynthetic symbioses with animal hosts. The host provides ...
... and the most important among them are Beggiatoa, Thioploca and Thiomargarita; besides, large amounts of hydrogen sulfide are ...
... and Beggiatoa, as well as many other species of bacteria, cyanobacteria, and algae. The column provides numerous gradients, ...
Exposed rocks have shown filamentous bacteria and orange sediments around the field, where microorganisms such as Beggiatoa are ...
... and Beggiatoa, as well as many other species of bacteria, cyanobacteria, and algae. 1888s Three-phase electric power The three- ...
... whose studies on algae and photosynthetic bacteria led him to describe several bacteria including Bacillus and Beggiatoa. Cohn ...
... an Australian microbiologist Beggiatoa - F. S. Beggiato, a physician of Vicenza Beijerinckia - Martinus W. Beijerinck, a Dutch ...
Beggiatoa) delta subdivision (Sulfur and sulfate reducers (Desulfovibrio), Myxobacteria, Bdellovibrio) Gram-positive Eubacteria ...
... bearing morphological and ecological similarities with large sulfide-oxidizing bacteria such as Beggiatoa, are described from ...
In the 1880s, while studying Beggiatoa (a bacterium living in a sulfur rich environment), Sergei Winogradsky found that it ...
Beggiatoa is almost benthic, it can be found in marine (Beggiatoa sp. MS-81-6 and MS-81-1c) or freshwater (Beggiatoa alba) ... Two species of Beggiatoa have been formally described: the type species Beggiatoa alba and Beggiatoa leptomitoformis, the ... According to NCBI database only two species of Beggiatoa spp. have been validly published: Beggiatoa alba, and Beggiatoa ... Because of the lack of pure culture, little is known about the genetic of Beggiatoa. Beggiatoa alba show a GC content between ...
Parte, A.C. "Beggiatoa". LPSN. "Beggiatoa leptomitoformis". www.uniprot.org. Parker, Charles Thomas; Garrity, George M (2016). ... Beggiatoa leptomitoformis is a chemolithoautotrophic bacterium from the genus of Beggiatoa which has been isolated from ... Type strain of Beggiatoa leptomitoformis at BacDive - the Bacterial Diversity Metadatabase v t e. ... Dubinina, G; Savvichev, A; Orlova, M; Gavrish, E; Verbarg, S; Grabovich, M (February 2017). "Beggiatoa leptomitoformis sp. nov ...
Beggiatoas sulfide oxidation]] All strains of freshwater Beggiatoa demonstrate the ability to grow heterotrophically in ... Beggiatoa alba ==Description and Significance== Beggiatoa is a genus of colorless, filamentous proteobacteria. With cells ... 4684/Microbes/Beggiatoa.htm Dudley, Michael. Beggiatoa. Biology Department, Virginia Polytechnic Institute and State ... Beggiatoa are found in polluted marine environments, and can be seen by the naked eye as a white filamentous mat on top of ...
Beggiatoa is a genus of colorless, filamentous proteobacteria. With cells up to 200 microns in diameter, species of Beggiatoa ... Sulfur Metabolism in Beggiatoa. Journal of Bacteriology vol 169(12) December 1987. 5466-5472.. Silverside, Alan J. Beggiatoa. ... Beggiatoa. Biology Department, Virginia Polytechnic Institute and State University.. Marine Bacteria (Beggiatoa spp.) Benthic ... Beggiatoa are found in polluted marine environments, and can be seen by the naked eye as a white filamentous mat on top of the ...
Beggiatoa distribution dynamics in intact mats.The total estimated Beggiatoa biomasses in the 0- to 10-mm depth zone for the ... Measurements of Beggiatoa internal nitrate and elemental sulfur concentrations.One Beggiatoa type, based on its morphological ... In an incubation experiment with an enriched Beggiatoa population for the determination of Beggiatoa nitrate storage potential ... Depth distribution of Beggiatoa filament densities and biomass determination.The vertical distribution of Beggiatoa filament ...
Carbon isotopic composition of major fatty acids in the Beggiatoa covered sediment core. PANGAEA, https://doi.org/10.1594/ ... Carbon isotopic composition of major fatty acids in the Beggiatoa covered sediment core. PANGAEA, https://doi.org/10.1594/ ...
H218O incubation of Beggiatoa sp. strain 35Flor.Beggiatoa sp. strain 35Flor was cultivated in opposing gradients of oxygen and ... The polyP-accumulating strain of the large sulfur bacterium Beggiatoa was used as a model organism. Beggiatoa cultures were ... Sulfide induces phosphate release from polyphosphate in cultures of a marine Beggiatoa strain. ISME J 5:497-506. doi:10.1038/ ... 2). Since phosphate in the surrounding medium was depleted after 7 days of growth (9) (see "H218O incubation of Beggiatoa sp. ...
Beggiatoa alba (Vaucher) Trevisan (ATCC® 33555™) ATCC® Number: 33555™ Strain Designations: B18LD ...
Phylogeny and distribution of nitrate-storing Beggiatoa spp. in coastal marine sediments ... 2003). Phylogeny and distribution of nitrate-storing Beggiatoa spp. in coastal marine sediments. Environmental Microbiology, 5( ... Phylogeny and distribution of nitrate-storing Beggiatoa spp. in coastal marine sediments ...
5. Beggiatoa, Bitch!. Beggiatoa is a genus of filamentous bacteria that form colorful, fuzzy mats around cold seeps. Mats can ... Tagged Beggiatoa, Breaking Bad, Brine Pool, chemistry, Cold seeps, Crystal Meth, gas hydrate, Methane Hydrate, Microbes Post ... Beggiatoa mats on the sea floor around a Gulf of Mexico cold seep. The image mosaic (from left to right, and top to bottom) ... The colors also correspond to different species of Beggiatoa bacteria - these species are constantly competing with each other ...
Beggiatoa, one of the members here mentioned she had significant help with SOB by taking Mestinon, causing her to think the ... Beggiatoa and Lotusflower...interesting observations. Ive felt all along that it was more of an "energy" issue than a lung ...
The IAN Image Library is provided completely cost and royalty free for any use, with attribution, except for redistribution or sales. Required Attribution: Author Name, Integration and Application Network, University of Maryland Center for Environmental Science. If you need to use our images without attribution, you can purchase non-attribution rights to many of our images by clicking the Add to Cart link once you are registered and logged in.. ...
The area is covered by orange and white Beggiatoa spp. bacterial mats and Riftia colonies, indicating diffuse venting. In the ... B. B. Jørgensen, "Distribution of colorless sulfur bacteria (Beggiatoa spp.) in a coastal marine sediment," Marine Biology, vol ... they both shared similar Beggiatoa spp. substrate mats. The same occurred in cores 1 and 3 from Great Pagoda and Oil Town, ...
Beggiatoa sp. photoactivated guanylyl cyclase) is a BLUF-domain photosensor that is coupled to a GC domain (Figure 2C). It ... of the soil bacterium Beggiatoa. J. Biol. Chem. 286: 1181-1188. doi:10.1074/jbc.M110.185496. ... originates from bPAC (Beggiatoa sp. photoactivated adenylyl cyclase) that was mutated to generate cGMP rather than cAMP (Ryu et ...
Beggiatoa alba (ATCC 33555); Flexithrix dorotheae (ATCC 23163); Leucothrix mucor (ATCC 25107); or Sphaerotilus natans (ATCC ... the bacteria belonging to the order of the Beggiatoales and more particularly the bacteria belonging to the genera Beggiatoa, ... said non-photosynthetic and non-fruiting filamentous bacterium comprising those of the genera Beggiatoa, Vitreoscilla, ...
Schmidt, T. M., Arieli, B., Cohen, Y., Padan, E., and Strohl, W. R. (1987). Sulfur metabolism in Beggiatoa alba. J. Bact. 169, ... For instance, Beggiatoa spp. can reduce intracellular S(0) when more favorable electron acceptors are unavailable (Nelson and ... Nelson, D. C., and Castenholz, R. W. (1981). Use of reduced sulfur compounds by Beggiatoa sp. J. Bact. 147, 140-154. ... Unlike many lithotrophic S-oxidizers (e.g., Beggiatoa spp., Thiothrix spp.), pure cultures of Epsilonproteobacteria do not ...
Beggiatoa spp. Applied and Environmental Microbiology 62, 954-958, 1996 被引用文献1件 ...
Beggiatoa, gliding bacteria, live closely in hostile anaerobic environments with green plants and protect them by oxidizing ... Interaction of Beggiatoa and Rice Plant: Detoxification of Hydrogen Sulfide in the Rice Rhizosphere ... a plant root catalase protects Beggiatoa from autointoxication by decomposing its self-produced hydrogen peroxide (about × 3454 ...
Beggiatoa sampling.Native filaments of a wide uncultured Beggiatoa sp. were collected at a depth of 900 m in Clam Field Seep (1 ... This vacuolate Beggiatoa-Thioplocacluster and a more distantly related freshwater Beggiatoaspecies cluster form a distinct ... In contrast, individualBeggiatoa filaments could be readily detected. The presumptive higher density of the MontereyBeggiatoa ... 1992) The genus Beggiatoa. in The prokaryotes, eds Balows A., Truper H. G., Dworkin M., Harder W., Schleifer K.-H. (Springer- ...
A V-ATPase has been shown to be responsible for generating a proton-motive force across the membrane of a marine Beggiatoas ... Unlike its filamentous sister taxa (e.g., Beggiatoa, Thioploca etc.) Thiomargarita spp. is generally considered to be non- ... MacGregor, B. J., Biddle, J. F., and Teskea, A. (2013c). Mobile elements in a single-filament Orange Guaymas Basin Beggiatoa (" ... The genomes of the following strains were included in the tetra-nucleotide training and ESOM binning: Candidatus Beggiatoa sp. ...
Biological and chemical sulfide oxidation in a Beggiatoa inhabited marine sediment. Isme J, 1: 341-353CrossRefGoogle Scholar ... Phylogeny and distribution of nitrate-storing Beggiatoa spp. in coastal marine sediments. Environ Microbiol, 5: 523-533CrossRef ... Close association of active nitrifiers with Beggiatoa mats covering deep-sea hydrothermal sediments. Environ Microbiol, 16: ...
Teske, A., Sogin, M.L., Nielsen, L.P., and Jannasch, H.W. (1999). "Phylogenetic relationships of a large marine Beggiatoa." ...
Genus Beggiatoa [I]. *Genus Thiothrix [II]. *Genus Thioploca [III]. *Genus "Thiospirillopsis" [IV] ...
Thiothrix I and II, Beggiatoa spp., N. limicola II*, and types 021N, 0092*, 0914*, 0581*, 0961* and 0411.. ...
1E); and thick mats of Beggiatoa bacteria covered the surface of sediments. The presence of dead but intact bodies of sponges, ...
Plasmid pAAV hSyn1 bPAC cMyc T2A tDimer from Dr. Thomas Oertners lab contains the inserts humanized photoactivated adenylyl cyclase and red fluorescent protein and is published in Unpublished This plasmid is available through Addgene.
Beggiatoa, bacterial mats, A8:13 bioevents age, A3:107; A4:105; A5:55; A6:71; A7:65; A8:82; A9:80; A10:96; A11:54; B8:28 See ...
Characterization of Beggiatoa in Black Band Disease of Scleractinian Corals Viehman, Tiffany S. Florida International ...
UI), Streptococcus pyogenesATCC 12344, Pseudomonas aeruginosa (UI),Beggiatoa sp. strain OH-75-2a (provided by D. Nelson), and ... Beggiatoa sp. strain MS 81-1-C (provided by D. Nelson) (lane 11), Chromatium vinosum ATCC 17899 (lane 12), and Methanosarcina ...
2A) was similar to that ofThioploca off the Chilean coast (3). In contrast to the multicellular Thioploca and Beggiatoa, the ... Thioploca and and its close relative Beggiatoa were present, but only in low numbers. Instead, we discovered large populations ... Whereas motility is a fundamental prerequisite for the filamentous Thioplocaand Beggiatoa (14, 19),Thiomargarita appear unable ... In comparison, the largest known sulfur bacteria,Beggiatoa spp., found at hydrothermal vents in the Guaymas Basin, Gulf of ...
  • Beggiatoa is a genus of Gammaproteobacteria belonging the order Thiotrichales, in the Proteobacteria phylum. (wikipedia.org)
  • Beggiatoa leptomitoformis is a chemolithoautotrophic bacterium from the genus of Beggiatoa which has been isolated from wastewater from Moscow in Russia. (wikipedia.org)
  • Thiotrichaceae ===Species:=== ''Beggiatoa alba'' ==Description and Significance== ''Beggiatoa'' is a genus of colorless, filamentous proteobacteria. (kenyon.edu)
  • Beggiatoa is a genus of colorless, filamentous proteobacteria. (kenyon.edu)
  • PolyP-accumulating microorganisms, like most members of the genus Beggiatoa, have the potential to store large amounts of polyP in response to environmental conditions ( 8 , 9 ). (asm.org)
  • Beggiatoa is a genus of filamentous bacteria that form colorful, fuzzy mats around cold seeps. (deepseanews.com)
  • Environmentally dominant members of the genus Beggiatoa and Thioploca spp. (asm.org)
  • His doctoral dissertation focused on ecology, physiology, and the genetics of chemoautotrophic sulfur bacteria of the genus Beggiatoa . (marian.edu)
  • they were distinguished by the fact that numerous Thioploca filaments are contained within a common polysaccharide sheath, while Beggiatoa filaments occur singly. (asm.org)
  • Vacuolate Beggiatoa or Thioploca spp. (asm.org)
  • This vacuolate Beggiatoa-Thioploca cluster and a more distantly related freshwater Beggiatoa species cluster form a distinct phylogenetic group. (asm.org)
  • Among the numerous conspicuous sulfur-oxidizing bacteria, the genera Beggiatoa and Thioploca have similar morphological and physiological characteristics, including disk-shaped or cylindrical cells arranged in long filaments, gliding motility, intracellular globules of elemental sulfur, and the occurrence of both freshwater and marine representatives that have a wide range of cell diameters (widths). (asm.org)
  • Despite long-standing interest in both of these genera, there are pure cultures of only the narrowest Beggiatoa strains (width, less than 5 μm), while no Thioploca species has been cultured. (asm.org)
  • Although some ultrastructural differences between certain Thioploca and Beggiatoa strains have been reported at the electron microscopy level ( 21 , 22 ) and although some differentiation may be possible based on filament widths (Table 1 ), a single Thioploca filament cannot be reliably differentiated from a Beggiatoa filament by light microscopy. (asm.org)
  • Summary of properties of vacuolate Beggiatoa and Thioploca spp. (asm.org)
  • Beggiatoa and Thioploca filaments have been observed to form dense mats on sediments in estuarine, shelf, seep, and deep-sea hydrothermal vent environments ( 7 , 10 , 12 ). (asm.org)
  • Thioploca and and its close relative Beggiatoa were present, but only in low numbers. (sciencemag.org)
  • Thioploca and Beggiatoa are common types of sulfide-oxidizing bacteria that form thick mats in reducing environments. (noaa.gov)
  • These microbial mats are dominated by large sulfur oxidizing filamentous Bacteria often affiliated (according to microscope observations) to Beggiatoa and Thioploca . (ifremer.fr)
  • The morphology of the giant sulfur bacteria as they appear in the light microscope: (a) Beggiatoa , (b) Thioploca , (c) Thiothrix , (d) Thiomargarita , (e) Thiovulum , (f) Achromatium . (els.net)
  • Carrion in the form of dead seal pups and algal mats placed on soft bottom habitats at Explorers Cove and Salmon Bay, McMurdo Sound, attract scavenging invertebrates that are driven away by hydrogen sulphide produced by sulphate-reducing bacteria sequestered below a layer of Beggiatoa/Thioploca-like filamentous bacteria. (ucsd.edu)
  • Thiothrix I and II , Beggiatoa spp. (ny.gov)
  • Soluble sulfides are oxidized to elemental sulfur, predominately by the bacteria Thiothrix niuea and Beggiatoa sp. (ufl.edu)
  • Using 16S rDNA libraries, they showed that proteobacteria were again the predominant organisms, with most of the biomass represented by the sulfur inclusion-containing filamentous Beggiatoa and Thiothrix. (asmblog.org)
  • Hydrogen sulfide also supports the growth of certain filamentous organisms such as thiothrix and beggiatoa, which are associated with bulking problems in activated sludge treatment. (h2o2.com)
  • Two species of Beggiatoa have been formally described: the type species Beggiatoa alba and Beggiatoa leptomitoformis, the latter of which was only published in 2017. (wikipedia.org)
  • Species of Beggiatoa have cells up to 200 µ in diameter and they are one of the largest prokaryotes on Earth. (wikipedia.org)
  • The Neo-type strain is the B18LB and it settled the criteria for identification of the freshwater species Beggiatoa alba. (wikipedia.org)
  • According to NCBI database only two species of Beggiatoa spp. (wikipedia.org)
  • With cells up to 200 microns in diameter, species of ''Beggiatoa'' are among the largest prokaryotes. (kenyon.edu)
  • Equation for ''Beggiatoa'''s sulfide oxidation]] All strains of freshwater ''Beggiatoa'' demonstrate the ability to grow heterotrophically in the presence of oxygen, yet this growth tends to be limited by the lack of catalase in ''Beggiatoa ''species. (kenyon.edu)
  • Organic Nutrition of Beggiatoa Species. (kenyon.edu)
  • The preference for a niche where oxygen and sulfide co-occur has been shown for both marine and freshwater Beggiatoa species. (asm.org)
  • The colors also correspond to different species of Beggiatoa bacteria - these species are constantly competing with each other, vying for space on the seafloor and access to nutrients . (deepseanews.com)
  • Two new Beggiatoa species inhabiting marine mangrove sediments in the Caribbean. (jove.com)
  • The proliferation of this single species in exclusive association with free-living, sulphide-oxidising bacteria (Beggiatoa) indicates that its dominance is strongly related to trophic specialisation, evidently uncommon among the meiofauna. (marinespecies.org)
  • An important study about the genomic of Beggiatoa analyzed the sequences obtained from two single filaments of a vacuolated strain. (wikipedia.org)
  • Fluorescent in situ hybridization with a sequence-specific probe confirmed that this sequence originated from wide Beggiatoa filaments (width, 65 to 85 μm). (asm.org)
  • The genera Beggiatoa is a quiet diverse group as it has representatives occupying several habitats and niches, both in fresh and salt water. (wikipedia.org)
  • of the genera Beggiatoa and Thiobacillus, that have the ability to utilize sulfur or inorganic sulfur compounds as an energy source. (thefreedictionary.com)
  • have been validly published: Beggiatoa alba, and Beggiatoa leptomitoformis. (wikipedia.org)
  • Beggiatoa alba show a GC content between 40 and 42.7 mol%, the presence of two or three similar plasmids and the genome size of Beggiatoa alba strain B18LD result to be about 3Megabase (Mb). (wikipedia.org)
  • At this point the giant sulfide-oxidizing bacteria Beggiatoa was visible on surface sediments. (biogeosciences.net)
  • The polyP-accumulating strain of the large sulfur bacterium Beggiatoa was used as a model organism. (asm.org)
  • They identified a sequence in the genome of the bacterium Beggiatoa as likely encoding a protein with a light-sensing BLUF (blue light receptor using FAD) domain linked directly to a type III adenylyl cyclase. (sciencemag.org)
  • A photoactivated adenylyl cyclase from the bacterium Beggiatoa represents a promising tool for optogenetic manipulation of cAMP. (sciencemag.org)
  • Particularly attractive is PAC from the bacterium Beggiatoa spec. (uni-wuerzburg.de)
  • When cloned into a cyclic adenosine monophosphate (cAMP)-deficient strain of Escherichia coli , the putative Beggiatoa photoactivated adenylyl cyclase (bPAC) rescued maltose metabolism, indicating that it was a functional adenylyl cyclase. (sciencemag.org)
  • To that end, the PAC gene from Beggiatoa (bPAC) was delivered to β-cells. (readbyqxmd.com)
  • Optical mapping showed that the genome size was about 7.4Mb and the sequence analyses detected pathways for sulfur oxidation, nitrate and oxygen respiration, and CO2 fixation, confirming the chemolithoautotrophic physiology of Beggiatoa. (wikipedia.org)
  • Kreutzmann, A.-C. and Schulz-Vogt, H. N. (2016): Oxidation of molecular hydrogen by a chemolithoautotrophic Beggiatoa Strain. (io-warnemuende.de)
  • Beggiatoa cultures were grown under oxic and anoxic conditions when exposed to either low- or high-sulfide conditions, which are known to influence polyP metabolism in this strain. (asm.org)
  • Beggiatoa mats growing on the surface of the chemoherms oxidize the sulfide provided by sulfate-dependent anaerobic oxidation of methane within an oxic environment. (pangaea.de)
  • Ecology== ''Beggiatoa'' are evident in the marine environment as white filamentous mats on top of sulfide-rich sediments. (kenyon.edu)
  • The aim of this study was to investigate the supposed vertical diel migration and the accompanying physiology of Beggiatoa bacteria from hypersaline microbial mats. (asm.org)
  • It was concluded that nitrate storage by Beggiatoa is an optimal strategy to both occupy the suboxic zones in sulfidic sediments and survive the dark periods in phototrophic mats. (asm.org)
  • Beggiatoa mats on the sea floor around a Gulf of Mexico cold seep. (deepseanews.com)
  • During his research in Anton de Bary's laboratory of botany in 1887, he found that Beggiatoa oxidized hydrogen sulfide (H2S) as energy source, forming intracellular sulfur droplets, oxygen is the terminal electron acceptor and CO2 is used as carbon source. (wikipedia.org)
  • Restriction fragment length polymorphism analysis of a clone library revealed a dominant clone, which gave rise to a putative Monterey Beggiatoa 16S rRNA sequence. (asm.org)
  • The field of bacteriology (later a subdiscipline of microbiology) was founded in the 19th century by Ferdinand Cohn, a botanist whose studies on algae and photosynthetic bacteria led him to describe several bacteria including Bacillus and Beggiatoa. (yahoo.com)
  • The field of bacteriology (later a subdiscipline of microbiology) is generally considered to have been founded by Ferdinand Cohn (1828-1898), a botanist whose studies on algae and photosynthetic bacteria led him to describe several bacteria including Bacillus and Beggiatoa . (newworldencyclopedia.org)
  • The base of the food chain consists of filamentous, Beggiatoa-type Sulfur bacterial mat, together with other types of bacteria and associated protozoans. (gsi.gov.il)
  • References== [http://filebox.vt.edu/users/chagedor/biol_4684/Microbes/Beggiatoa.htm Dudley, Michael. (kenyon.edu)
  • http://www-biol.paisley.ac.uk/bioref/Eubacteria/Beggiatoa.html Silverside, Alan J. ''Beggiatoa. (kenyon.edu)
  • The large sulphur bacteria Thiomargarita namibiensis and Beggiatoa spp. (diva-portal.org)
  • Phylogenetic Affinity of a Wide, Vacuolate, Nitrate-Accumulating Beggiatoa sp. (asm.org)
  • A phylogenetic tree based on evolutionary distances indicated that the Monterey Beggiatoa sp. (asm.org)
  • By the observation of their morphological characteristics, Beggiatoa spp. (wikipedia.org)
  • Our findings suggest that hypersaline Beggiatoa bacteria oxidize sulfide with oxygen under light conditions and with internally stored nitrate under dark conditions. (asm.org)
  • The model was not able to simulate this TPO 4 source as release of iron-bound P (Fe-P) or organic P. As an alternative hypothesis, the TPO 4 peak was reproduced using new kinetic expressions that allow Beggiatoa to take up porewater TPO 4 and accumulate an intracellular P pool during periods with oxic bottom waters. (biogeosciences.net)
  • The contact between Beggiatoa and the underlying microbial consortium represents the interface between the overlying oxic water column and an anoxic micro-environment where carbonate formation takes place. (pangaea.de)
  • Cyanobacteria) for the morphology and motility characters, but 5S rRNA analysis showed that members of Beggiatoa are phylogenetically distant from Cyanobacteria being members of the Gammaproteobacteria phylum. (wikipedia.org)
  • The capability to oxidize sulfide and store sulfur are the main features which separates Beggiatoa bacteria from the closely related Vorticella. (wikipedia.org)
  • Phylogeny and distribution of nitrate-storing Beggiatoa spp. (mpg.de)
  • In order to investigate the phylogeny of an environmentally dominant Beggiatoa sp. (asm.org)
  • Beggiatoa'' are found in polluted marine environments, and can be seen by the naked eye as a white filamentous mat on top of the water as a sign of environmental deterioration. (kenyon.edu)
  • http://www.csc.noaa.gov/lcr/nyharbor/html/gallery/sgbeggia.html Marine Bacteria (''Beggiatoa ''spp. (kenyon.edu)
  • The TPO 4 added to the porewater over the year by organic P and Fe-P is recycled through Beggiatoa , meaning that no additional source of TPO 4 is needed to explain the TPO 4 peak. (biogeosciences.net)
  • Because of the lack of pure culture, little is known about the genetic of Beggiatoa. (wikipedia.org)
  • However, in the dark, the highest Beggiatoa densities occurred at 7 mm, and the whole population was present in the anoxic zone of the mat. (asm.org)
  • Modeling benthic-pelagic nutrient exchange processes and porewater distributions in a seasonally hypoxic sediment: evidence for massive phosphate release by Beggiatoa? (biogeosciences.net)
  • Beggiatoa'' tend to prefer areas that are rich in hydrogen sulfate, including water that has been contaminated with sewage. (kenyon.edu)