• As a first step in addressing this question, a strategy, which allows for the isolation of organisms capable of reducing nitrate to nitrite following aerobic growth has been developed. (uea.ac.uk)
  • There has been continued interest in developing compounds that, on topical application, will inhibit both the growth of bacteria involved in w o u n d sepsis and, in particular, the organisms causing nosocomial venous or arterial line sepsis (Maki, 1989). (docksci.com)
  • Here, unicellular organisms, such as bacteria or algae, or cells of higher eukaryotes ( e.g ., cardiomyocytes or spermatozoa), are used to propel the biohybrid swimmers in stagnant or low-velocity physiological fluids. (nature.com)
  • Only one extreme halophilic organism, domain Archaea , was isolated from site 4 only, whereas organisms in the domain Bacteria were recovered from the five remaining sampling sites that contained up to 250 g/L NaCl. (hindawi.com)
  • Nitrifying bacteria process dissolved nitrogenous waste products excreted by the aquatic organisms being cultured. (thefishsite.com)
  • Like ammonia, the nitrite produced by the Nitrosomonas bacteria is toxic to aquatic organisms and must be oxidised further to a less toxic form of nitrogen. (thefishsite.com)
  • They are widely distributed marine bacteria that may constitute over 10% of the open ocean microbial community. (wikipedia.org)
  • We analyzed the microbial load of 54 holy water samples , repeatedly taken in five Roman Catholic churches in the greater area of Villingen-Schwenningen, Germany , by means of aerobic colony counting and Matrix-Assisted Laser Desorption/Ionization ( MALDI ) Biotyping of representative isolates. (bvsalud.org)
  • Impurities in the coolant encourage microbial growth including various types of bacteria. (moldbacteria.com)
  • A total of ninety-six samples were collected and the microbial conditions were based on total aerobic bacteria (TEB), coliforms, yeasts, and moulds counts as well as the identification of coliforms and yeasts using identification kits. (hindawi.com)
  • Cosmetics may also get contaminated with bacteria and other microorganisms. (moldbacteria.com)
  • The purpose of this research was to chemically analyse salt and brine samples collected from the lake, isolate any novel extremely halophilic aerobic or facultative anaerobic microorganisms, and examine their phenotypic features and physiological and biochemical characteristics with a view to screening for metabolites of industrial interest produced by the novel halophilic isolates. (hindawi.com)
  • A new study on Lake Cadagno in Canton Ticino shows that the microorganisms responsible are aerobic proteobacteria. (sciencedaily.com)
  • In it, solids are separated out of the raw sewage and are partially digested by anaerobic (oxygen-lacking) bacteria. (missouri.edu)
  • Anaerobic phototrophic bacteria, on the contrary, can contain numerous species of photosynthetic pigments like bacteriochlorophyll-a. (wikipedia.org)
  • Species of these bacteria such as R. denitrificans and S. sibiricus have up to three subpolar flagella. (wikipedia.org)
  • LH complexes with unusual absorption maxima have been discovered due to the isolation and characterization of new aerobic phototrophic species. (wikipedia.org)
  • AAP bacteria represent a variety of species that belong to subgroups of Alpha-, Beta- and Gammaproteobacteria. (wikipedia.org)
  • Antimicrobial susceptibilities of aerobic species were measured by an agar dilution method with Mueller-Hinton agar according to the guidelines of the National Committee for Clinical Laboratory Standards (NCCLS, 1990). (docksci.com)
  • For aerobic species a replicating spot device was used to apply 104 colonyforming units (CFU) to agar plates, and 105 CFU were used per spot for anaerobes. (docksci.com)
  • Many texts list (appropriately) the bacterial species that are sensitive to various antibiotics-these lists are usually organised by class of antibiotic and are useful if one has identified the species of bacteria or can be reasonably confident of the species most likely to be causing an infection in a patient. (vin.com)
  • Unlike bacteria , there are no known yeast species that grow only in the absence of oxygen (anaerobically). (newworldencyclopedia.org)
  • Undesirable microbes that can cause spoilage of dairy products include Gram-negative psychrotrophs, coliforms, lactic acid bacteria, yeasts, and moulds. (hindawi.com)
  • Microbiology of Meat and Poultry provides a critical review of the bacteria, yeasts and moulds that grow on, and can potentially spoil, meat and poultry products. (chipsbooks.com)
  • An acidic skin surface is also essential for the maintenance of the normal microflora, which provides innate antimicrobial protection against invasion by pathogenic bacteria and yeasts. (medscape.com)
  • Not only will the process knock down bacteria by a factor of 5-log, it will also kill molds, yeasts and other spore formers while being certified organic, Halal and Kosher. (foodengineeringmag.com)
  • Contamination can be determined by testing for coliform bacteria that are indicators of sewage contamination. (moldbacteria.com)
  • Enterobacteriaceae and coliform bacteria within this family represent two of the most common groups of indicator organism used by the food industry [ 9 ]. (hindawi.com)
  • Tularemia, a bacterial zoonosis, is caused by Francisella tularensis, one of the most infectious pathogenic bacteria known. (cdc.gov)
  • Numbers and types of bacteria that should be a cause for concern depends upon several factors, including the type of bacteria present and the type of samples. (moldbacteria.com)
  • Aerobic treatment resulted in the greatest change in the type of bacteria present, with the levels of eight out of nine phyla being significantly altered. (cdc.gov)
  • In the four environments studied, culturable bacteria capable of aerobic nitrate respiration were isolated in significant numbers (104 to 107 per g of soil or sediment) and in three cases were as abundant as, or more abundant than, culturable bacteria capable of denitrification. (uea.ac.uk)
  • In this study, the effect of aerobic denitrification on nitrogen removal was investigated using two zero-discharge biofloc-based recirculating aquaculture systems with representative carbon-to-nitrogen (C/N) ratios of 15 (CN15) and 20 (CN20). (frontiersin.org)
  • In conclusion, aerobic denitrification should widely exist in biofloc systems. (frontiersin.org)
  • Some bacteria use denitrification process where they use nitrate in place of oxygen. (worldatlas.com)
  • Bacteria testing of cosmetics involve analyses of Gram positives or Gram negatives, Total Plate Count, Yeast and Mold Counts. (moldbacteria.com)
  • Aerobic, anaerobic, and facultative anaerobic microbes belonging to domains Archaea and Bacteria have been recovered from these extreme ecosystems, where they participate in overall organic matter oxidation [ 2 - 6 ]. (hindawi.com)
  • Bacteria can be classed based on their staining properties (gram negative or gram positive or other) and on the environment in which they grow-i.e., aerobic, anaerobic and facultative anaerobic. (vin.com)
  • Aerobic anoxygenic phototrophic bacteria (AAPBs) are Alphaproteobacteria and Gammaproteobacteria that are obligate aerobes that capture energy from light by anoxygenic photosynthesis. (wikipedia.org)
  • Aerobic anoxygenic phototrophic bacteria are photoheterotrophic (phototroph) microbes that exist in a variety of aquatic environments. (wikipedia.org)
  • A new strain of aerobic anoxygenic phototrophic bacteria, JF-1, was recently isolated from deep-ocean hydrothermal vent waters. (wikipedia.org)
  • Aerobic anoxygenic phototrophic bacteria are divided into two genera. (wikipedia.org)
  • The goal of this study was to define aerobic pathogens associated with CSOM in Angola with the overall aim to provide a background for local treatment recommendations. (springer.com)
  • Whatever method is used to add bacteria to a system, there is a danger of introducing pathogens as well. (thefishsite.com)
  • There are two marine (Erythrobacter and Roseobacter) and six freshwater (Acidiphilium, Erythromicrobium, Blastomonas (synonym: Erythromonas), Porphyrobacter, Roseococcus, and Sandaracinobacter) genera of these bacteria. (wikipedia.org)
  • Members of the domain Bacteria belonged to genera Salicola, Pontibacillus, Halomonas, Marinococcus , and Halobacillus , whereas the only member of domain Archaea isolated belonged to the genus Halorubrum . (hindawi.com)
  • Chemical composition of cell-wall preparations from strains of various form-genera of aerobic actinomycetes. (microbiologyresearch.org)
  • Lechevalier H. A. , Lechevalier M. P. 1970 A critical evaluation of genera of aerobic actinomycetes. (microbiologyresearch.org)
  • Here the wastewater is further processed by aerobic (oxygen-loving) bacteria. (missouri.edu)
  • The aeration tank brings organic containing wastewater, aerobic bacteria and dissolved oxygen into contact so that biological oxidation breaks the organic matter down into carbon dioxide and water. (brighthub.com)
  • wastewater/aerobic bacteria flow is kept mixed and aerated by air blown in through diffusers. (brighthub.com)
  • Current data suggests that marine bacteria have generation times of several days, whereas new evidence exists that shows AAPB to have a much shorter generation time. (wikipedia.org)
  • article{osti_1548317, title = {Influence of Light on Particulate Organic Matter Utilization by Attached and Free-Living Marine Bacteria}, author = {Gómez-Consarnau, Laura and Needham, David M. and Weber, Peter K. and Fuhrman, Jed A. and Mayali, Xavier}, abstractNote = {Light takes on a central role on primary productivity of aquatic systems. (osti.gov)
  • Loss of antimicrobial susceptibility in aerobic gram-negative bacilli repeatedly isolated from patients in intensive-care units. (harvard.edu)
  • Aerobic and anaerobic bacteriological methods and antimicrobial susceptibility testing were used. (who.int)
  • The scientists demonstrated that methane is almost completely consumed in the anoxic waters of Lake Cadagno, but they did not detect any known anaerobic methane-oxidizing bacteria -- or archaea, which are responsible for marine methane oxidation. (sciencedaily.com)
  • Coliforms are common environmental bacteria and may be found in soil, on hands, on equipment surfaces, in water and other environments. (moldbacteria.com)
  • The ecology of soil bacteria. (microbiologyresearch.org)
  • Nitrifying bacteria can be introduced with water or bits of biofilter media from an already operating system, with pond sediment or barnyard soil, or with small numbers of "starter" animals. (thefishsite.com)
  • AAP bacteria are motile due to one polar or subpolar flagellum. (wikipedia.org)
  • Bacteria-driven biohybrid microswimmers (bacteriabots) combine synthetic cargo with motile living bacteria that enable propulsion and steering. (nature.com)
  • We show that the cargo attachment to these bacteria is greatly enhanced by motility and occurs predominantly at the cell poles, which is greatly beneficial for the fabrication of motile bacteriabots. (nature.com)
  • Also, excellent success has been achieved with silver sulfadiazine in burn w o u n d sepsis because of its activity against Gram-positive and -negative bacteria. (docksci.com)
  • 1991). This study evaluates the in vitro activity of several novel metal compounds against Gram-positive and Gramnegative bacteria. (docksci.com)
  • Doxycycline has bacteriostatic activity against a broad range of Gram-positive and Gram-negative bacteria. (druglib.com)
  • Several laboratory strains of gram-negative bacteria are known to be able to respire nitrate in the presence of oxygen, although the physiological advantage gained from this process is not entirely clear. (uea.ac.uk)
  • The contribution that aerobic nitrate respiration makes to the environmental nitrogen cycle has not been studied. (uea.ac.uk)
  • Instead, water samples collected from a depth of around 12 metres were found to contain abundant aerobic proteobacteria -- up to 240,000 cells per millilitre. (sciencedaily.com)
  • Healthy skin harbours a resident, harmless bacterial population that includes Micrococcaceae, Propionibacteriaceae, and aerobic diphtheroids. (britannica.com)
  • The information concerning the main components found in cell wall preparations and whole-cell hydrolysates of some 600 strains of aerobic actinomy-cetes is reviewed. (microbiologyresearch.org)
  • Bacteria isolated from surgical infections and its susceptibilities to antimicrobial agents--special references to bacteria isolated between April 2006 and March 2007]. (harvard.edu)
  • Water can also be analysed for other types of bacteria such as iron, sulfur or slime bacteria that cause blockage of plumbing systems, bad odors, discolorations and diseases. (moldbacteria.com)
  • At least 90 percent of the following bacteria exhibit in vitro minimum inhibitory concentration (MIC) less than or equal to the susceptible breakpoint for erythromycin against isolates of similar genus or organism group. (nih.gov)
  • The essence of the activated sludge process ( invented in England in 1914 ) is maintaining an adequate concentration of aerobic bacteria in the aeration tank by settling out the aerobic bacteria in a secondary clarifier and recycling most of them back into the aeration tank. (brighthub.com)
  • Oxygen is used up by aerobic bacteria to feed hence lowers its concentration in water. (worldatlas.com)
  • The objective of this study was to model a typical dairy waste stream, monitor the chemical and bacterial population dynamics that occur during aerobic or anaerobic treatment and subsequent storage in a simulated lagoon, and compare them to those of waste held without treatment in a simulated lagoon. (cdc.gov)
  • This is an aerobic process that needs oxygen to occur. (thefishsite.com)
  • Corrosion of mild steel underneath aerobic biofilms containing sulfate-reducing bacteria. (montana.edu)
  • Lee, W., Z. Lewandowski, M. Morrison, W.G. Characklis, R. Avci and P.H. Nielsen, "Corrosion of mild steel underneath aerobic biofilms containing sulfate-reducing bacteria. (montana.edu)
  • Both aerobic and anaerobic treatment methods followed by storage effectively reduced the levels of total solids (59 to 68%), biological oxygen demand (85 to 90%), and sulfate (56 to 65%), as well as aerobic (83 to 95%), anaerobic (80 to 90%), and coliform (>99%) bacteria. (cdc.gov)
  • However, only aerobic treatment reduced the levels of ammonia , and anaerobic treatment was more effective at reducing total sulfur and sulfate. (cdc.gov)
  • The key to determining their role in marine ecosystems was originally thought to be the AAPB in total bacteria (AAPB%), however, this no longer seems to be the case because AAPB have been found to be much larger than other aquatic bacteria and so their actual effect on production is now thought to be much larger than their abundance would suggest. (wikipedia.org)
  • The most commonly reported bacteria cultured from pilonidal abscesses differ by author. (medscape.com)
  • Bacterial population dynamics in dairy waste during aerobic and anaerobic treatment and subsequent storage. (cdc.gov)
  • At least one article suggests broad-spectrum antibiotics should be administered given the possibility of both aerobic and anaerobic infection at the incision site. (medscape.com)
  • Zosyn (piperacillin and tazobactam for injection) is a combination of two antibiotics used to treat many different infections caused by bacteria, such as urinary tract infections, bone and joint infections, severe vaginal infections, stomach infections, skin infections, and pneumonia . (rxlist.com)
  • Pnuemonias caused by bacteria or with secondary bacterial infections are frequently treated with antibiotics. (petplace.com)
  • But in short, a Type I will liquefy all solids and paper, reducing the bacteria to 1,000 per 100 milliliters. (unitedmarine.net)
  • These bacteria can be isolated using carotenoid presence and medias containing organic compounds. (wikipedia.org)
  • Well ventilated systems will allow the "good" bacteria to knock down the "bad" bacteria and keep those odors at bay. (unitedmarine.net)
  • And finally, according to those in the know, if you add some aerobic "good" bacterial treatment to your tank, it will help control the odors and enhance natural decomposition. (unitedmarine.net)
  • Chemical treatments work and work well, but they do use chemicals which kill the "good and bad" bacteria and then covers up any odors with a strong perfume smell. (unitedmarine.net)
  • Even if the pathogenesis is multifactorial, the clinical onset is frequently an episode of AOM complicated by tympanic membrane perforation and a subsequent superinfection of the middle ear with bacteria entering through the outer ear channel. (springer.com)
  • However, the efficacy of erythromycin in treating clinical infections caused by these bacteria has not been established in adequate and well-controlled clinical trials. (nih.gov)
  • Only a few kinds of bacteria always cause disease when present. (msdmanuals.com)
  • Sometimes bacteria that normally reside harmlessly in the body cause disease when, for example, they leave their normal location in the body. (msdmanuals.com)
  • Bacteria can cause disease by producing harmful substances (toxins), invading tissues, or doing both. (msdmanuals.com)
  • Lechevalier M. P. , Lechevalier A. 1970 Composition of whole-cell hydrolysates as a criterion in the classification of aerobic actinomycetes. (microbiologyresearch.org)
  • bacteria, so that biological oxidation of the organic matter will take place. (brighthub.com)
  • To answer this question, the behaviour of the bacteria was investigated in laboratory experiments: methane oxidation was found to be stimulated only when oxygen was added to the samples incubated in vitro , or when they were exposed to light. (sciencedaily.com)
  • To reduce the development of drug-resistant bacteria and maintain the effectiveness of erythromycin ethylsuccinate tablets and other antibacterial drugs, erythromycin ethylsuccinate tablets should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria. (nih.gov)
  • Under aerobic conditions, there is enough oxygen to react with all the free radicals and addition of metronidazole, or any other sensitizers, yields no further benefit. (who.int)
  • The cold start method has the advantage of using the bacteria that entered the system with the first animals introduced, bacteria that must have been well-suited to the conditions from which those animals came. (thefishsite.com)
  • Illumina sequencing and quantitative polymerase chain reaction revealed that increasing the C/N ratio significantly increased the amount of aerobic denitrifying bacteria ( Dechloromonas , Rhodobacter , Flavobacterium , and Zoogloea ) and aerobic denitrifying functional genes ( napA , nirK , and nosZ ). (frontiersin.org)