• Cariogenic bacteria ( Streptococcus mutans , Lactobacillus casei , Streptococcus salivarius and Actinomyces viscosus ) were exposed to TBO and then to the laser for 1 minute in planktonic suspension . (bvsalud.org)
  • The results grouped the isolates into six species predominating those of the genus Lactobacillus and showing a typical biogeographical distribution. (mdpi.com)
  • These include Lactobacillus and Bifidobacterium genera of bacteria, typically present in fermented food. (news-medical.net)
  • Lactobacillus acidophilus (L. acidophilus) is a type of probiotic ("good" bacteria) found in the human gut, mouth, and vagina, and also in certain foods. (medlineplus.gov)
  • Also note that the Lactobacillus genus was split up into 25 different genera in April 2020. (medlineplus.gov)
  • Mycetoma due to actinomycetes should be differentiated from actinomycosis , which is an endogenous suppurative infection caused by Actinomyces israelii, other species of Actinomyces, or related bacteria, typically affecting the cervicofacial, thoracic, and pelvic sites (the latter is usually associated with the use of intrauterine devices). (medscape.com)
  • Similar to anaerobic organisms of the genus Actinomyces , Nocardia species often form thin filaments that can resemble but are much thinner than those of true fungi (1-2 µm vs 3-5 µm in diameter). (medscape.com)
  • Actynomycosis is an uncommon infection caused by oral bacteria of the genus Actinomyces. (bvsalud.org)
  • The prokaryotes: a handbook on the biology of bacteria: Firmicutes, Cyanobacteria, vol. 4, 3rd ed. (wikidoc.org)
  • Acquisition and synthesis of folates by obligate intracellular bacteria of the genus Chlamydia. (jci.org)
  • Although this risk is generally associated with people who work in laboratories studying Brucella organisms, it is possible that people working in meat-processing areas could be exposed to the bacteria by inhalation of droplets from contaminated meat (cattle, sheep). (medicinenet.com)
  • Also, MAC bacteria are environmental organisms commonly found in soil, dust, water sources, and in domestic and wild animals. (medicalnewstoday.com)
  • singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. (definitions.net)
  • Although the term bacteria traditionally included all prokaryotes, the scientific classification changed after the discovery in the 1990s that prokaryotes consist of two very different groups of organisms that evolved from an ancient common ancestor. (definitions.net)
  • The ancestors of modern bacteria - single-celled organisms that were probably the first forms of life on earth - arose about four billion years ago. (lu.se)
  • The oxygen content in the air - which most organisms today are dependent on - increased approximately 2.5 billion years ago, probably thanks to a special form of bacteria, cyanobacteria (also called blue-green algae). (lu.se)
  • Through their consumption, bacteria, together with other organisms, contribute to the decomposition of dead plants and animals which eventually results in both carbon dioxide that can be used in photosynthesis, and minerals that can once again be absorbed by plants - thereby making the ecosystem cycle come full circle. (lu.se)
  • Good" bacteria such as L. acidophilus can help break down food, absorb nutrients, and fight off "bad" organisms that might cause diseases. (medlineplus.gov)
  • Paenibacillus is a genus of facultative anaerobic , endospore -forming bacteria , originally included within the genus Bacillus and then reclassified as a separate genus in 1993. (wikipedia.org)
  • The branching bacteria that cause actinomycosis are non-acid-fast anaerobic or microaerophilic bacteria. (medscape.com)
  • Multiple strains representing four species of bacteria belonging to the genus Providencia have been isolated from wild caught Drosophila melanogaster: Providencia sneebia, Providencia burhodogranariea strain B, Providencia burhodogranariea strain D, Providencia rettgeri, and Providencia alcalifaciens. (cornell.edu)
  • The strains of the bacteria B. subtilis (016), B. pumilus (097) and the new strains of the natural type B/11, B/16 are used in the investigations. (kiev.ua)
  • Based on 16S rRNA gene sequence analysis and DNA-DNA relatedness (19-30 %) with the type strains of the genus Methylobacillus , the novel isolates Z T , SP and M3 are classified as representing a novel species of this genus, for which the name Methylobacillus methanolivorans sp. (microbiologyresearch.org)
  • More specifically, several Paenibacillus species serve as efficient plant growth-promoting rhizobacteria (PGPR), which competitively colonize plant roots and can simultaneously act as biofertilizers and as antagonists ( biopesticides ) of recognized root pathogens, such as bacteria, fungi, and nematodes. (wikipedia.org)
  • Overall, after the composting process is finished and cured, most pathogens will be brought to a similar level as the surrounding soil thus reducing the amount of salmonella bacteria in your compost. (msu.edu)
  • This study aimed to describe clinical features of IE caused by HACEK genera in comparison with IE due to other pathogens. (lu.se)
  • [8] Bacteria belonging to this genus have been detected in a variety of environments, such as: soil, water, rhizosphere , vegetable matter, forage and insect larvae, as well as clinical samples. (wikipedia.org)
  • Thirty halophilic bacteria were isolated from the soil of Karwar mangrove regions, Karnataka. (ijpsonline.com)
  • Bacteria were among the first life forms to appear on Earth, and are present in most habitats on the planet, growing in soil, water, acidic hot springs, radioactive waste, and deep in the Earth's crust, as well as in organic matter and the live bodies of plants and animals, providing outstanding examples of mutualism in the digestive tracts of humans, termites and cockroaches. (definitions.net)
  • Nocardiosis is an infection caused by several species of soil-borne aerobic bacteria belonging to the genus Nocardia . (medscape.com)
  • One gram of soil can contain around 40 million bacteria, and one millilitre of fresh water can contain one million. (lu.se)
  • Various pigments like carotenes, melanins, flavones, quinines and violacein[ 4 - 6 ] are produced by different bacterial genera like Serratia , Streptomyces , Pseudomonas , Bacillus , Vibrio and Cytophyga that play an important role in their molecular and physiological processes and help taxonomist to identify and classify the bacteria, as they differ in chemical structure with specific chromophores. (ijpsonline.com)
  • A ) Probiotic bacteria can hinder the adsorption process via directly binding to the virus and inhibiting entry into epithelial cells. (news-medical.net)
  • B ) Binding of probiotic bacteria to the epithelial surface can cause steric hindrance and block the virus's attachment to the host cell receptor. (news-medical.net)
  • C ) Probiotic bacteria releases antimicrobial substances (such as bacteriocins, biosurfactants, lactic acid, hydrogen peroxide, nitric oxide, organic acids) and intestinal mucins from mucosal cells, which can effectively inhibit virus proliferation. (news-medical.net)
  • In the past it was common to sour and ferment food using naturally occurring probiotic bacteria. (lu.se)
  • People commonly use L. acidophilus for diarrhea from antibiotics, as well as irritable bowel syndrome (IBS), overgrowth of bacteria in the vagina, and an infection caused by the bacteria Helicobacter pylori (H. pylori). (medlineplus.gov)
  • Pinta is an infectious tropical disease caused by the spiral-shaped bacterium (spirochete) known as Treponema carateum. (rarediseases.org)
  • Yaws is an infectious tropical disease caused by the spirochete (spiral shaped) bacterium known as Treponema pertenue. (rarediseases.org)
  • This photomicrograph of a liver smear tissue sample, revealed the presence of spirochete bacteria of the genus, Leptospira , in a fatal case of human leptospirosis. (cdc.gov)
  • Culture-independent characterization of bacteria in poultry and dairy bioaerosols using pyrosequencing: a new approach. (cdc.gov)
  • In 1913, Pinoy described the mycetoma produced by aerobic bacteria that belong to the actinomycete group and classified mycetomas as those produced by true fungi (eumycetoma) versus those due to aerobic bacteria (actinomycetoma). (medscape.com)
  • But in analyzing data from foundational gut microbiome studies, we uncovered evidence that one type of bacteria associated with meat consumption can take the TMA, as well as precursors to TMA, and metabolize them without producing any TMAO. (foundmyfitness.com)
  • If the surroundings contain energy-rich compounds, there is often a type of bacteria that can use these compounds to grow. (lu.se)
  • The genus Bacterium was a taxon described in 1828 by Christian Gottfried Ehrenberg. (wikipedia.org)
  • A Chilean cicada of the Tettigades genus PIOTR LUKASIK The symbiotic bacteria living within the Chilean cicada genus Tettigades have some of the smallest genomes known of any life form. (the-scientist.com)
  • Bacteria also live in symbiotic and parasitic relationships with plants and animals. (definitions.net)
  • All known comammox bacteria are affiliated with Nitrospira sublineage II and can be grouped into two distinct clades, referred to as A and B, based on ammonia monooxygenase phylogeny. (osti.gov)
  • In this study, the high resolution and accuracy of MS/MS-based proteotyping was demonstrated, through analyses of the three phylogenetically and taxonomically most closely-related species of the Mitis Group of the genus Streptococcus: i.e., the pathogenic species, Streptococcus pneumoniae (pneumococcus), and the commensal species, Streptococcus pseudopneumoniae and Streptococcus mitis. (chalmers.se)
  • [ 7 ] The ratio of mycetoma cases caused by bacteria (actinomycetoma) to those caused by true fungi (eumycetoma) in Mexico has been reported to be 92:8. (medscape.com)
  • Mycetoma caused by filamentous bacteria is termed actinomycetoma. (medscape.com)
  • In the genus Corynebacterium , AmtR is a key component of the nitrogen regulatory system, and it belongs to the TetR family of transcription regulators. (frontiersin.org)
  • The genus contains the species Corynebacterium diphtheriae and the nondiphtherial corynebacteria, collectively referred to as diphtheroids. (medscape.com)
  • Symbioses between chemolithoautotrophic bacteria and the major macrofaunal species found at hydrothermal vents have been reported for numerous sites in the Pacific Ocean. (harvard.edu)
  • In the biological communities surrounding hydrothermal vents and cold seeps, extremophile bacteria provide the nutrients needed to sustain life by converting dissolved compounds, such as hydrogen sulphide and methane, to energy. (definitions.net)
  • These experiments group microbes into taxonomic units, often at the family or genus level, and are useful for observing major community shifts/differences. (nature.com)
  • Bacteria among all the microbes have immense potential to produce diverse pigments. (ijpsonline.com)
  • Traditionally prepared cuisine often includes such fermented foods, since these bacteria restore the balance of microbes in the gut. (news-medical.net)
  • Mycetoma infection can be caused by fungi or bacteria. (medscape.com)
  • More than 56 different species of fungi and bacteria have been reported to cause mycetoma. (medscape.com)
  • Mycetoma is produced by the introduction of microorganisms (bacteria or fungi) via localized trauma to the skin with thorns, wood splinters, or implantation with solid objects. (medscape.com)
  • Once regarded as plants constituting the class Schizomycetes ("fission fungi"), bacteria are now classified as prokaryotes. (definitions.net)
  • Using this laboratory-friendly and natural host, D. melanogaster, I determined how these bacteria differ in their ability to cause host mortality, replicate within the fly and trigger the fly's immune response as measured by transcription of antimicrobial peptides. (cornell.edu)
  • Although each bacterium has a unique profile of these phenotypes, in general the greater amount of mortality a given bacterium causes, the more proliferative it is and the greater antimicrobial peptide transcription they evoke in the host. (cornell.edu)
  • An exception to this was P. sneebia which killed about 90% of infected flies and reached greater numbers within the fly than any of the other bacteria, but induced less antimicrobial peptide transcription than the less virulent Providencia. (cornell.edu)
  • If the bacteria have become resistant to this treatment, antibiotic susceptibility testing should be performed to select the best antimicrobial agent or agents to be used. (medscape.com)
  • The family Legionellaceae consists of a single genus, Legionella. (ipl.org)
  • Genus of BACTERIA in the family Frankiaceae. (bvsalud.org)
  • Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. (definitions.net)
  • Typically a few micrometres in length, bacteria have a wide range of shapes, ranging from spheres to rods and spirals. (definitions.net)
  • More extensive genome sequencing could provide fundamental insights into pathways involved in complex social behavior of bacteria, and can discover a source of genes with biotechnological potential. (wikipedia.org)
  • Similarly, doctors often find MAC infections challenging to treat due to the inherent resistance of the bacteria to many commonly used antibiotics. (medicalnewstoday.com)
  • Bacteria are important in sewage treatment and the breakdown of oil spills, the production of cheese and yogurt through fermentation, the recovery of gold, palladium, copper and other metals in the mining sector, as well as in biotechnology, and the manufacture of antibiotics and other chemicals. (definitions.net)
  • They can be used in the production of many chemicals, such as cellulose, and bacteria produce many of the antibiotics used to treat bacterial infections. (lu.se)
  • Good sanitation, vaccines and antibiotics have greatly limited these hazardous bacteria. (lu.se)
  • However, today an alarming amount of bacteria are becoming resistant against previously effective antibiotics. (lu.se)
  • It has some things in common with Lyme disease, which is also caused by a bacterium. (cdc.gov)
  • Most of the bacteria in and on the body are harmless or rendered so by the protective effects of the immune system, and many are beneficial, particularly the ones in the gut. (definitions.net)
  • Some bacteria are beneficial, aiding in digestion, producing vitamins, and protecting against harmful bacteria, while others cause diseases. (definitions.net)
  • Scientists study the unusual genome evolution of the bacteria that live within a genus of cicadas. (the-scientist.com)
  • In this study, we undertook extensive genome-wide comparative analyses of twelve species that conform the Pectobacterium genus. (mdpi.com)
  • Another way that brucellosis spreads to humans is by inhalation of the bacteria. (medicinenet.com)
  • Brucellosis is contagious as long as living bacteria are present in domestic and wild animals and/or their secretions, including milk products. (medicinenet.com)
  • To fulfill their requirements for iron, bacteria have developed several strategies, including the reduction of ferric to ferrous ions, the secretion of high-affinity iron-chelating compounds, called siderophores , and the uptake of heterologous siderophores. (wikipedia.org)
  • The bacteria, which are able to ferment cellulose, xylane and pectin, established themselves with solid feed intake. (researchgate.net)
  • catalyzed by nitrite oxidizing bacteria (NOB) which can convert nitrite to nitrate ( Prosser, 1989 ). (frontiersin.org)
  • This, in turn, disrupts the outer cell membrane by displacing cations and leaking the intracellular contents, combining it with outer cellular contents, causing the bacteria to be unable to differentiate the bacteria's intra and outer cellular contents from one another. (ipl.org)
  • When DNA of the phage integrates into the host bacteria's genetic material, the bacteria develop the capacity to produce this polypeptide toxin. (medscape.com)
  • Bacteria are single-celled microorganisms, also known as prokaryotes, existing in various shapes such as rods, spirals, or spheres. (definitions.net)