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BacteriaGram-Negative BacteriaGram-Positive BacteriaBacteria, AnaerobicRNA, Ribosomal, 16SBacteria, AerobicDNA, BacterialMolecular Sequence DataBacterial ProteinsPhylogenyEscherichia coliDNA, RibosomalSequence Analysis, DNAWater MicrobiologyGram-Negative Aerobic BacteriaGram-Negative Anaerobic BacteriaBacterial Physiological PhenomenaSoil MicrobiologyAnti-Bacterial AgentsSulfur-Reducing BacteriaGenes, BacterialRNA, BacterialSeawaterColony Count, MicrobialGene Expression Regulation, BacterialCulture MediaAnaerobiosisGenes, rRNAGenome, BacterialSymbiosisBase CompositionBiodegradation, EnvironmentalBacterial AdhesionAmino Acid SequencePseudomonasSpecies SpecificityEnterobacteriaceaeBase SequenceFresh WaterBacteriological TechniquesGammaproteobacteriaBiofilmsMicrobial Sensitivity TestsBacterial InfectionsFermentationGeologic SedimentsProteobacteriaBacteroidesAerobiosisBacterial Typing TechniquesPseudomonas aeruginosaStaphylococcus aureusBetaproteobacteriaMicrobial ViabilityVibrioStreptococcusCytophagaVirulenceHydrogen-Ion ConcentrationFatty AcidsBacillusTemperatureCloning, MolecularPolymerase Chain ReactionPlasmidsOxidation-ReductionSalmonella typhimuriumArchaeaMutationFungiFecesGram-Negative Bacterial InfectionsAntibiosisClostridiumSequence Homology, Amino AcidEubacteriumBacillus subtilisIntestinesActinobacteriaMouthBacterial Outer Membrane ProteinsCorynebacteriumBacterial LoadSequence AlignmentPhagocytosisFood MicrobiologyGastrointestinal TractDeltaproteobacteriaGram-Negative Aerobic Rods and CocciListeria monocytogenesCell WallBacteroidetesGene Transfer, HorizontalChlorobiDrug Resistance, BacterialAir MicrobiologyDrug Resistance, MicrobialProbioticsPhenotypeFusobacterium
Species of nitrifyiEscherichiaOrganismsStrainsNitrite to nitrateSoil20222023MicroscopicMicrobiomePhagesSpirochetesResearchersInfectionsNitrificationConsumeHarmfulEffectivelyProteinMoleculesCellsEvolutionColiMechanismsSurviveGeneticDigestMolecularBacterialScientistsBodiesInfectionCapableHealthyIncludeSearchCellOxygenLifeScienceDiseaseComplexFoodWaterCultureTeamLevelsPlasticCommonAnimalsCommunityLive
Species of nitrifyi1
  • Many species of nitrifying bacteria have complex internal membrane systems that are the location for key enzymes in nitrification: ammonia monooxygenase (which oxidizes ammonia to hydroxylamine), hydroxylamine oxidoreductase (which oxidizes hydroxylamine to nitric oxide - which is further oxidized to nitrite by a currently unidentified enzyme), and nitrite oxidoreductase (which oxidizes nitrite to nitrate). (wikipedia.org)
Escherichia2
  • The bacterium {\it Escherichia coli} swims by rotating several helical flagellar filaments, which are gathered in a bundle behind the cell during `runs' wherein the cell moves steadily forward. (aps.org)
  • One way of speeding things up would be to transfer the genes that make the two enzymes into a faster growing bacterium like Escherichia coli , says Uwe Bornscheuer of Greifswald University in Germany. (newscientist.com)
Organisms12
  • Phys.org) -- Researchers working at a lab at Berkeley University, led by Nicole King, have uncovered the first example of a kind of bacteria that causes a single celled organism to form a colony, a finding that has implications for researchers looking into the origins of multi-celled organisms in general. (phys.org)
  • The team's research centers on choanoflagellates, single celled organisms that swim around in water using their tails. (phys.org)
  • The findings have added importance because researchers have long thought that choanoflagellates are animals closest relative, which means that it's possible that bacteria and the molecules they produce, could conceivably be part of the reason that single celled organisms first began to form colonies, leading eventually to multi-celled beings that evolved over time into all of the animals that are alive today. (phys.org)
  • Not everyone is onboard with that idea however, as over time, choanoflagellates have evolved just as have all the organisms that evolved from whatever the first multi-celled organisms actually were, but this new finding does hint at the possibility that we all owe our existence to a bacteria similar to A. machipongonensis living all those years ago. (phys.org)
  • Nitrifying bacteria are chemolithotrophic organisms that include species of genera such as Nitrosomonas, Nitrosococcus, Nitrobacter, Nitrospina, Nitrospira and Nitrococcus. (wikipedia.org)
  • Bacteria are single cell organisms with no nervous system or brain. (sciencedaily.com)
  • Two and a half billion years ago there were only bacteria - single-celled organisms. (emagazine.com)
  • Bacteria are "any of a large group of very small one-celled organisms that reproduce by fission or by forming spores. (all-science-fair-projects.com)
  • Bacteria are one-celled organisms that are classified as prokaryotes, meaning they have no nucleus. (all-science-fair-projects.com)
  • Bacteria are microscopic, single-celled organisms. (merckmanuals.com)
  • Although some bacteria cause diseases in humans, the vast majority do not harm humans and are essential to the health of other organisms and Earth's ecosystems. (berkeley.edu)
  • They work great for the challenge of sequencing a single organism's genome, but not for our purposes of sequencing the genomes of thousands of unknown organisms at once. (news-medical.net)
Strains8
  • That led to a search through some sixty strains of bacteria to determine which had caused the change. (phys.org)
  • They included both beneficial and pathogenic strains of bacteria. (medicalnewstoday.com)
  • Now, a group of researchers led by Katie Pollard, PhD, at Gladstone Institutes have published two new studies that suggest monitoring the strains of bacteria-;and not just the species-;may provide better insights into the microbiome. (news-medical.net)
  • When we take a more fine-grained approach and look at the strains of bacteria, I predict that we'll start finding causal links between the microbiome and diseases. (news-medical.net)
  • In one study published in the journal Nature Biotechnology , Pollard's lab worked with Stephen Nayfach, PhD, a research scientist at the US Department of Energy Joint Genome Institute, to develop a new computational method to analyze the strains of bacteria present in a microbiome sample much more quickly and affordably than existing technologies. (news-medical.net)
  • In a separate paper published online in Genome Research , Pollard collaborated with the labs of Benjamin Good, PhD, and Michael Snyder, PhD, at Stanford University to track the strains of bacteria present in one person's microbiome at 19 different time points over a 5-month period, including before and after a course of antibiotics. (news-medical.net)
  • They found that, in some cases, the abundance of a species of bacteria remained constant between time points, but the strains within that species changed dramatically. (news-medical.net)
  • That's because the different strains in a single species of bacteria can harbor significant genetic differences, which are often large enough to induce different behaviors. (news-medical.net)
Nitrite to nitrate1
  • catalyzed by nitrite oxidizing bacteria (NOB) which can convert nitrite to nitrate ( Prosser, 1989 ). (frontiersin.org)
Soil2
  • Using a soil bacterium called Bacillus subtilis , Dr Stanley-Wall has investigated the genes and proteins required for biofilms to develop. (sciencedaily.com)
  • Here we characterise phylogenetically diverse genome-encoded ABCFs from Actinomycetia (Ard1 from Streptomyces capreolus, producer of the nucleoside antibiotic A201A), Bacilli (VmlR2 from soil bacterium Neobacillus vireti) and Clostridia (CplR from Clostridium perfringens, Clostridium sporogenes and Clostridioides difficile). (lu.se)
20221
  • Jan. 31, 2022 Most bacteria have the ability to form communities, biofilms, that adhere to a wide variety of surfaces and are difficult to remove. (sciencedaily.com)
20231
  • 5, 2023 Bacteria are also able to communicate with each other through chemical signals, a behavior known as quorum signaling (QS). (sciencedaily.com)
Microscopic1
  • A microscopic, single-celled organism lacking a well-defined nucleus. (berkeley.edu)
Microbiome3
  • Over the past decade, scientists have generally described a person's microbiome-;the collection of microbes found in the human gut-;by characterizing what species of bacteria are present, and in what amounts. (news-medical.net)
  • Since every bacterium has its own genetic code, scientists rely on DNA sequencing to uncover what bacteria inhabits any given person's microbiome. (news-medical.net)
  • Researchers had to compare millions of DNA fragments from the genomes of thousands of bacteria present in the microbiome to a database with the sequences of every known microorganism, using a technique known as sequence alignment. (news-medical.net)
Phages4
Spirochetes2
  • All bacteria may be classified as one of three basic shapes: spheres (cocci), rods (bacilli), and spirals or helixes (spirochetes). (merckmanuals.com)
  • These bacteria are spirochetes, which are motile and spiral shaped. (cdc.gov)
Researchers3
  • The two-step conversion of ammonia to nitrate observed in ammonia-oxidizing bacteria, ammonia-oxidizing archaea and nitrite-oxidizing bacteria (such as Nitrobacter) is puzzling to researchers. (wikipedia.org)
  • Now, A*STAR researchers have developed a synthetic molecule capable of killing bacteria such as E.coli in seconds, far more rapidly than any antimicrobial product, such as hand wash or surface spray, currently on the market ( Small , 'Ultrafast killing and self-gelling antimicrobial imidazolium oligomers' ). (nanowerk.com)
  • A*STAR researchers have developed a synthetic molecular complex capable of destroying common bacteria in seconds. (nanowerk.com)
Infections2
  • More detailed information on how bacteria develop into biofilms will allow scientists to work on alternative strategies to treat biofilm related infections and may improve technologies for waste water treatment plants or microbial fuel cells. (sciencedaily.com)
  • Nanowerk News ) Killing bacteria quickly and efficiently is key to tackling the spread of infections, but the recent increase in drug-resistant bacteria has made this task particularly challenging. (nanowerk.com)
Nitrification1
  • Complete nitrification, the conversion of ammonia to nitrate in a single step known as comammox, has an energy yield (∆G°′) of −349 kJ mol−1 NH3, while the energy yields for the ammonia-oxidation and nitrite-oxidation steps of the observed two-step reaction are −275 kJ mol−1 NH3, and −74 kJ mol−1 NO2−, respectively. (wikipedia.org)
Consume2
  • Bacteria need oxygen to consume dead plant matter, so as the algae died, the bacteria took large amounts of oxygen out of the water, and this killed 85% of all sea animals. (emagazine.com)
  • For example, if the population of one type of phage increases, the bacteria that they consume will dwindle, potentially making room for another species of bacteria to multiply. (medicalnewstoday.com)
Harmful3
Effectively6
  • The challenge for scientists is to create antimicrobial agents that are capable of killing bacteria efficiently and effectively, yet safe for humans. (nanowerk.com)
  • We had considerable success with our previous designs, but we wanted to further improve the speed at which our oligomers could destroy bacteria effectively. (nanowerk.com)
  • The purpose of this experiment was to determine which disinfectant would most effectively kill bacteria. (all-science-fair-projects.com)
  • The results of the experiment were that bleach worked the most effectively to kill bacteria. (all-science-fair-projects.com)
  • My hypothesis was that bleach would work most effectively to kill the most bacteria. (all-science-fair-projects.com)
  • Bacteria may develop a synergistic relationship with bacteriophages and more effectively resist various stresses, enabling them to persist despite disinfection and antimicrobial treatment. (mdpi.com)
Protein3
  • Nitrifying bacteria are present in distinct taxonomical groups and are found in highest numbers where considerable amounts of ammonia are present (such as areas with extensive protein decomposition, and sewage treatment plants). (wikipedia.org)
  • She has shown that a protein called DegU helps the individual bacteria to "decide" whether to form a biofilm or not. (sciencedaily.com)
  • DegU protein enables the bacteria to switch between swarming movement and the production of biofilm materials to suit the particular circumstances," said Dr Stanley-Wall. (sciencedaily.com)
Molecules1
  • The team created the material using positively-charged molecules linked together in a chain to attract negatively-charged bacteria cells. (nanowerk.com)
Cells2
  • When choanoflagellates ingest the bacteria, they get a very tiny amount of RIF-1, and that is all it takes, apparently, for the daughter cells that are spawned to form the rosettes. (phys.org)
  • There are at least as many bacteria in our resident flora as there are cells in the body. (merckmanuals.com)
Evolution2
  • This study provides a prototypical example of bacterial sulfonolipids triggering eukaryotic morphogenesis and suggests molecular mechanisms through which bacteria may have contributed to the evolution of animals. (phys.org)
  • It has taken just 70 years for evolution to throw up a bacterium capable of breaking down and consuming PET, one of the world's most problematic plastic pollutants. (newscientist.com)
Coli1
  • The current version of the dashboard focuses on data for Salmonella , Shiga toxin-producing E. coli (STEC), Shigella and Campylobacter bacteria isolated from human specimens, such as stool or blood. (cdc.gov)
Mechanisms1
  • citation needed] The enzymatic mechanisms involved in nitrite-oxidizing bacteria are less described than that of ammonium oxidation. (wikipedia.org)
Survive2
  • The bacteria alive then did not need oxygen to survive. (emagazine.com)
  • Today anerobic bacteria survive only in places where oxygen is scarce - on the sea floor or in the guts of animals (including us) where they aid in digestion. (emagazine.com)
Genetic1
  • We have to improve the bacterium to make it more powerful, and genetic engineering might be applicable here," says Oda, whose team is already experimenting with this. (newscientist.com)
Digest3
Molecular2
  • We knew that the material's physical properties played a significant role in these results, so we investigated how the oligomer interacted with the bacteria using computer-aided molecular simulations. (nanowerk.com)
  • Most recently, GeneXpert MTB/RIF (Cepheid) advanced nucleic acid-based detection by integrating PCR and a highly sensitive molecular-beacon assay into a single, automated system. (cdc.gov)
Bacterial2
  • A bacterial isolate is a group of the same type of bacteria. (cdc.gov)
  • It has a unique structure with one 'tail' at each end of the chain, and they found that, once the bacterium is 'caught', these tails act like drills that penetrate and destroy the bacterial cell membranes. (nanowerk.com)
Scientists2
  • Scientists use a standardized laboratory and data analysis method called whole genome sequencing to get detailed information about the bacterium, including whether it is closely related genetically to other bacteria. (cdc.gov)
  • However, scientists do not entirely understand the exact impact of specific foods on gut bacteria. (medicalnewstoday.com)
Bodies2
  • This week, why we're passengers in our own bodies, outnumbered by our resident bacteria. (thenakedscientists.com)
  • Many bacteria live on and in the bodies of people and animals-on the skin and in the airways, mouth, and digestive, reproductive, and urinary tracts-without causing any harm. (merckmanuals.com)
Infection2
  • CDC has identified some concerning serotypes causing single-state and multistate outbreaks and is sharing data to inform partners and guide efforts on preventing infection by these types of Salmonella . (cdc.gov)
  • Tularemia Tularemia is infection that is caused by the gram-negative bacteria Francisella tularensis , which is acquired when people have direct contact with infected wild animals, usually rabbits. (merckmanuals.com)
Capable1
  • Then a new bacterium evolved capable of photosynthesis, which means that it used sunlight and carbon dioxide to make energy and gave off oxygen as a waste product. (emagazine.com)
Healthy1
  • Indeed, studies have shown that people with diseases as diverse as inflammatory bowel disease, asthma, autism, diabetes, and cancer have different bacteria in their digestive systems compared to healthy people. (news-medical.net)
Include2
Search1
  • It's just a matter of searching properly and having patience like the Japanese group to narrow the search down to a single bacterium. (newscientist.com)
Cell2
Oxygen2
  • Oxygen, as it turned out, was toxic to the anerobic bacteria which then almost went extinct - basically killing all life on Earth except the photosynthesizing bacteria. (emagazine.com)
  • Bacteria are also classified by whether they need oxygen to live and grow. (merckmanuals.com)
Life2
  • Somewhat like the photosynthesizing bacteria 2.5 million years ago, the activity of this life form has rapidly increased the concentration of a waste product - in this case, carbon dioxide. (emagazine.com)
  • Neither plants nor animals, bacteria are similar to the first life forms on Earth and are widespread today. (berkeley.edu)
Science1
Disease2
  • The BEAM (Bacteria, Enterics, Amoeba, and Mycotics) Dashboard is an interactive tool to access and visualize data from the System for Enteric Disease Response, Investigation, and Coordination (SEDRIC). (cdc.gov)
  • Only a few kinds of bacteria cause disease. (merckmanuals.com)
Complex2
  • How do single celled bacteria living as part of a complex community called a biofilm "decide" between different physiological processes, such as movement or producing the "glue" that forms the biofilm? (sciencedaily.com)
  • The single-particle cryo-EM structure of a VmlR2-ribosome complex allows us to rationalise the resistance spectrum of this ARE-ABCF that is equipped with an unusually long antibiotic resistance determinant (ARD) subdomain. (lu.se)
Food2
  • The information gained from this experiment would help parents, health care providers, and food preparers to know which disinfectant to use to the best results for killing bacteria. (all-science-fair-projects.com)
  • the food you eat, medications you take, and germs you're exposed to make some bacteria flourish more than others. (news-medical.net)
Water1
  • Thermus scotoductus, sp.nov., a pigment-producing thermophilic bacterium from hot tap water in Iceland and including Thermus sp. (who.int)
Culture1
  • bacteria culture is the gold standard in TB detection for its highest sensitivity, but requires weeks to obtain results. (cdc.gov)
Team2
  • Next the team tore apart the bacteria trying to figure out what unique property it held that caused choanoflagellates to form into a colony. (phys.org)
  • The team hopes the discovery will lead to new ways of breaking down plastic, using either the bacteria themselves, or the two enzymes they use for the job. (newscientist.com)
Levels1
Plastic2
Common1
Animals1
  • In one of the closest living relatives of animals, the choanoflagellate Salpingoeca rosetta, we find that colony development is induced by the prey bacterium Algoriphagus machipongonensisand its close relatives in the Bacteroidetes phylum. (phys.org)
Community1
Live1