• Understanding how population-level dynamics contribute to ecosystem-level processes is a primary focus of ecological research and has led to important breakthroughs in the ecology of macroscopic organisms. (osti.gov)
  • Aquatic Microbial Ecology. (usc.edu)
  • CDC knows there is an important connection between microbial ecology and the health and wellbeing of people. (cdc.gov)
  • Leveraging microbial ecology to advance and protect our health involves a cross-cutting and dynamic effort from diverse collaborators, including public health experts, academic researchers, private industry, and regulatory experts. (cdc.gov)
  • Expanding our microbial ecology knowledge at the intersection of public health will lead us to new strategies to prevent infections and combat antimicrobial resistance, especially in healthcare settings. (cdc.gov)
  • Although scientists know that microbial ecology plays an important role in maintaining human health, there are remaining scientific questions. (cdc.gov)
  • CDC invests in microbial ecology research to study the interactions of microbes among people, animals, plants, food, and surfaces (e.g., counter tops), all of which can serve as sources of microbes that can lead to infection. (cdc.gov)
  • However, more research is needed in the field of microbial ecology to expand upon and develop new therapeutic strategies that address colonization, healthcare-associated infections (HAIs), and antimicrobial resistance, all while considering patient safety and the implications for a patient's microbiome. (cdc.gov)
  • Another week is dedicated to modern microbial ecology, during which you apply the fundamental knowledge acquired during the course so far to the study of microbes and their activities in the natural habitats. (lu.se)
  • The ethanol residual CHC13 extracts of D. hamiltoni root extracts against various pathogens and microbial isolates of spoiled vegetables tried. (envirobiotechjournals.com)
  • These microbial communities are home to helpful germs and pathogens (harmful germs). (cdc.gov)
  • Receiving 80% of its blood supply from the intestine through the hepatic portal vein system, the liver is enriched with a large number of innate immune cells , which carry out the process of immune response by detecting pathogens entering the organism through the intestine . (bvsalud.org)
  • Biofilms can attach to a surface such as a tooth or rock, and may include a single species or a diverse group of microorganisms. (wikipedia.org)
  • Microbial mats - layered biofilms containing different types of cells - are most complex systems in which representatives of various groups of organisms are found together. (epa.gov)
  • the study of modern microbial mats may provide information on the processes that may have occurred on Earth when prokaryotic life began to spread. (epa.gov)
  • Sulfate-reducing microorganisms can be traced back to 3.5 billion years ago and are considered to be among the oldest forms of microbes, having contributed to the sulfur cycle soon after life emerged on Earth. (wikipedia.org)
  • Oxygen is used as terminal electron acceptor via respiration by roots, soil microbes, and soil organisms (Sylvia, 2005), and is lost from the soil system in the form of carbon dioxide (CO 2 ). (kenyon.edu)
  • Depending on the type of electron acceptors used by microorganisms, microbes can be classified into the strict aerobes, obligate anaerobes, and facultative anaerobes. (kenyon.edu)
  • June 19, 2019 In nutrient-poor deep-sea sediments, microbes belonging to the Archaea have outcompeted bacterial microorganisms for millions of years. (sciencedaily.com)
  • The ability of microbes, tiny organisms that do big jobs in our environment, to go dormant not only can save them from death and possible extinction but may also play a key role in promoting biodiversity and ecosystem stability. (sciencedaily.com)
  • With the molecular data and models they developed, the researchers found that microbial seed banks -- seeds that have been dormant in the lakes -- are important, but, in Lennon's words, "not all microbes are the same. (sciencedaily.com)
  • Dormancy also appears to be important for microbes in the environment, and may help us understand what regulates the tremendous amount of microbial diversity that is found in virtually all natural ecosystems. (sciencedaily.com)
  • The interplay between the natural immune system and microbes coordinates the physiology of the whole organism, and in specific mammalian lineages, there is a dependency between the host and its associated microbes. (bvsalud.org)
  • Barcoded 454 pyrosequencing of taxonomic gene markers was used to describe the microbial communities in adjacent soil, freshwater and sediment samples and study the role of biotic and spatial factors in shaping their composition. (nature.com)
  • By applying this model to phylogenetic marker sequencing data collected from stable-isotope probing studies, we estimate rates of growth, mortality, and turnover for individual microbial populations within soil assemblages. (osti.gov)
  • The discovery, which has changed our understanding of microbial life in the soil deep biosphere, was recently published in the Proceedings of the National Academy of Sciences . (sciencedaily.com)
  • Scientists have recently cataloged thousands of microbial species in soil and ocean samples. (sciencedaily.com)
  • The risk for microorganism was evaluated, and concluded by the MAH to be unlikely, using MICresults for soil micro-organisms. (janusinfo.se)
  • The microbial counts of all isolated micro-organisms decreased immediately after cleansing but the number of isolates with high microbial counts increased over time. (fujita-hu.ac.jp)
  • In the wound bed, the number of isolates with decreasing microbial counts was larger than the number of isolates with increasing microbial counts. (fujita-hu.ac.jp)
  • The antimicrobial activity of ethanol and chloroform root extracts of D. hamiltoni were tested on several pathogenic micro organisms and microbial isolates of spoiled vegetables by disc diffusion method. (envirobiotechjournals.com)
  • Few habitat generalists but a high number of specialists were detected indicating that microbial community composition was mainly regulated by species sorting and niche partitioning. (nature.com)
  • Depending on the context, "sulfate-reducing microorganisms" can be used in a broader sense (including all species that can reduce any of these sulfur compounds) or in a narrower sense (including only species that reduce sulfate, and excluding strict thiosulfate and sulfur reducers, for example). (wikipedia.org)
  • For instance, although anaerobic bacteria, such as Clostridium thermocellum and Acetivibrio cellulalyticus, integrate diverse cellulases, aerobic organisms, such as Trichoderma species and several actinomycetes, generate and exude free lignocellulolytic enzymes (Cells). (pulsus.com)
  • All microbial species were identified by cultivation. (fujita-hu.ac.jp)
  • The microbial species we find in the deep seabed, are the same as those who lived at the seafloor for thousands of years ago. (sciencedaily.com)
  • The researchers hope that the new findings could ultimately help us to understand and reconstruct past environmental and climatic conditions based on analysis of the microbial species composition in deep marine sediment cores. (sciencedaily.com)
  • Often, microbial evolution is studied in an environment where numerous factors are controlling the rate of diversification and adaptation, in areas of abundant resources, undetermined connectedness and unknown species interactions. (frontiersin.org)
  • By analysing the overall microbial community composition (bacteria, fungi, archaea) across a terrestrial-freshwater gradient, the aim of this study was to understand the spatial distribution patterns of populations and identify taxa capable of crossing biome borders. (nature.com)
  • However, the inability to measure population-specific rates, such as growth, for microbial taxa within natural assemblages has limited ecologists' understanding of how microbial populations interact to regulate ecosystem processes. (osti.gov)
  • Because it can be applied to environmental samples, the approach we present is broadly applicable to measuring population growth, mortality, and associated biogeochemical process rates of microbial taxa for a wide range of ecosystems and can help reveal how individual microbial populations drive biogeochemical fluxes. (osti.gov)
  • Understanding Beijerinck's legacy for twentieth century microbial biogeography reveals issues that are still pertinent to contemporary discussions of microbial biodiversity and biogeography. (nature.com)
  • Microbial biogeography: putting microorganisms on the map. (nature.com)
  • Microbial biogeography and adaptation has been examined in many different environments. (frontiersin.org)
  • The results reveal the extreme evolutionary regime controlling microbial life in the deep biosphere. (sciencedaily.com)
  • It is our opinion that the deep biosphere offers a unique opportunity to examine microbial evolution in action. (frontiersin.org)
  • Scientists have developed a mathematical model and molecular tools to study how dormancy affects the biodiversity of natural microbial communities, especially in lakes. (sciencedaily.com)
  • In a paper published this week in the Proceedings of National Academy of Sciences, Michigan State University's Jay Lennon and Stuart Jones described how they used a mathematical model and molecular tools to study how dormancy affects the biodiversity of natural microbial communities, especially in lakes. (sciencedaily.com)
  • Sulfate-reducing microorganisms (SRM) or sulfate-reducing prokaryotes (SRP) are a group composed of sulfate-reducing bacteria (SRB) and sulfate-reducing archaea (SRA), both of which can perform anaerobic respiration utilizing sulfate (SO2− 4) as terminal electron acceptor, reducing it to hydrogen sulfide (H2S). (wikipedia.org)
  • Among them are cyanobacteria and eukaryotic phototrophs, aerobic heterotrophic and chemoautotrophic bacteria, protozoa, anoxygenic photosynthetic bacteria, and other types of microorganisms. (epa.gov)
  • It is most commonly caused by infectious organisms such as bacteria and viruses and less frequently caused by fungi and parasites. (nursetogether.com)
  • We can modify the bacteria to overexpress the relevant pathways, or we can modify the bacteria's environment to favor the growth of the microbial communities we want. (oreilly.com)
  • In finding few broadly distributed populations, our study points to biome specialization within microbial communities with limited potential for dispersal and colonization of new habitats along the terrestrial-freshwater continuum. (nature.com)
  • Most studies on distribution of microorganisms, as well as structure and turn-over of microbial communities focus on one biome and little is known about the processes mediating and controlling transfers across a landscape gradient involving terrestrial and aquatic biomes, and the resulting biogeographical patterns of microbial community distribution. (nature.com)
  • It is not clear, however, why microbial communities are so diverse. (sciencedaily.com)
  • May 17, 2022 The capabilities of complex microbial communities are used for numerous biotechnological processes. (sciencedaily.com)
  • We're discovering that these highly contaminated areas support microbial communities that are unique," Seibert says. (oreilly.com)
  • We all have our own microbial communities, called microbiomes, on our skin and in our gut that help us maintain good health. (cdc.gov)
  • Microbial community composition seems to be governed by both deterministic and stochastic processes 30 . (nature.com)
  • Anaerobic microbial processes including denitrification, methanogenesis, and methanotrophy are responsible for releasing greenhouse gases (N 2 O, CH 4 , CO 2 ) into the atmosphere (Schlesinger, 1997). (kenyon.edu)
  • These mats are perfect models for biogeochemical processes, such as the cycles of chemical elements, in which a variety of microorganisms cooperate and interact in complex ways. (epa.gov)
  • This in silico model, which is based on biochemical rate equations, does not describe a specific organism, but the magnitudes of its parameters are chosen to match realistic values. (lu.se)
  • Therefore, the MAH was asked to complete the ERA with several tests, including chronic ecotoxicity, toxicity to a sludge microbial community, and sludge and sediment partitioning tests. (janusinfo.se)
  • and (2) that the development of host-free microbiome model systems could be useful for rapidly screening pesticides against functionally distinct microbial catalogues of interest. (researchgate.net)
  • Observations of distributions of microorganisms and their differences in community composition across habitats provide evidence of biogeographical patterns. (nature.com)
  • Biological composition and microbial dynamics of sinking particulate organic matter at abyssal depths in the open ocean. (usc.edu)
  • As the microorganisms responsible for the infection multiply, infection spreads along the anatomical fascial planes, often sparing the deep muscular structures and, to variable degrees, the overlying skin, making the extent of involvement difficult to appreciate. (medscape.com)
  • This study focused on the dynamics, enzymes, and thermotolerance of each member of a lignocellulose-degrading thermophilic microbial community during all stages of composting plant waste. (pulsus.com)
  • This range of constraints on the exchange between reservoirs of microbial diversity can facilitate the study of the evolution of individual populations by specifically addressing how adaptation in isolation influences evolution. (frontiersin.org)
  • This means that these buried microorganisms presumably have a very low adaptability, unlike the microbial life that otherwise surrounds us in our environment" says Kasper U. Kjeldsen, associate professor at the Center for Geomicrobiology, who participated in the research project. (sciencedaily.com)
  • Since the days of Darwin, scientists have used the framework of the theory of evolution to explore the interconnectedness of life on Earth and adaptation of organisms to the ever-changing environment. (frontiersin.org)
  • But the canal still teems with life-microbial life. (oreilly.com)
  • New technology allows us to study important and fascinating questions regarding the microbial life and its importance on this planet. (lu.se)
  • Biotic interactions within microbial groups based on an association network underlined the importance of Actinobacteria , Sordariomycetes , Agaricomycetes and Nitrososphaerales in connecting among biomes. (nature.com)
  • Recent changes in human demographics and food preferences, changes in food production and distribution systems, microbial adaptation, and lack of support for public health resources and infrastructure have led to the emergence of novel as well as traditional foodborne diseases. (cdc.gov)
  • To analyze the skin debris and micro-organisms found on the periwound skin of pressure ulcers and to evaluate the effect of periwound cleansing on the microbial flora, a descriptive study was conducted among 17 long-term care residents with Stage III and IV pressure ulcers. (fujita-hu.ac.jp)
  • The study of evolution has been furthered through examination of microbial evolution, with large population numbers, short generation times, and easily extractable DNA. (frontiersin.org)
  • From a microbiologist's point of view, then, the Gowanus Canal is an analogue of the Amazon or the Mariana Trench: a still largely unexplored biome teeming with organisms that beg for cataloging and study. (oreilly.com)
  • Although the study of microorganisms is an old and important discipline, it has gone through a rapid development in recent years that has transformed it into a highly dynamic field that influences most aspects of modern biology. (lu.se)
  • The microbial cells growing in a biofilm are physiologically distinct from planktonic cells of the same organism, which, by contrast, are single cells that may float or swim in a liquid medium. (wikipedia.org)
  • This undermines the effectiveness of the available treatment options and thus contributes to the persistence of microbial infections. (who.int)
  • In fact, lignocellulose depolymerization occurs in natural ecosystems with a high degree of efficiency due to the cooperative activity of several enzymes produced by microorganisms belonging to different taxonomic groups. (pulsus.com)
  • Researchers at the Center for Geomicrobiology at Aarhus University, Denmark, have sequenced the genomes of several microorganisms inhabiting the subsurface seabed in Aarhus Bay. (sciencedaily.com)
  • With a minimalist model of metabolism, cell growth and transcriptional regulation in a microorganism, we explore how the interaction between environmental conditions and gene regulation set the growth rate of cells in the phase of exponential growth. (lu.se)
  • A number of studies have explored how regulation of generally, and at least to a first approximation, it is obvious that metabolic pathways affects the growth rate of microorganisms, gene regulation only is useful if the environmental conditions vary both in the steady state and in response to changes in the local with time. (lu.se)
  • 2019. SSU-rRNA gene sequencing survey of benthic microbial eukaryotes from Guaymas Basin hydrothermal vent. (usc.edu)
  • Suitable for industrial manufacturers and pharmaceutical laboratories who work with microbial identification, our knowledge base contains the most frequently encountered organisms in pharmaceutical, food and animal health applications. (biomerieux.com)
  • To increase composting efficiency and offer thermostable biomass-degrading enzymes for biorefineries, it is important to have a thorough understanding of the thermophilic microbial population involved in such biotransformation. (pulsus.com)
  • Microbial evolution is arrested in the subsurface seabed as cells are buried in under a continuously growing layer of deposited mud and their genetic material therefore remains unchanged during the millennia. (sciencedaily.com)
  • How do I Monitor the Growth Rate of My Microbial Culture? (eppendorf.com)
  • In unicellular organisms like E. coli and yeast, the benefits of between potential cost and benefit, regulation can make the most a well-adapted regulatory system are readily quantified, as the difference to the long-term growth rate if the resource in question fitness of an individual can be estimated by its growth rate in is only available a similarly small fraction of the time. (lu.se)
  • Growth of microorganisms is analysed from several aspects. (lu.se)
  • Cholesterol and nitrogen-containing substances were found in greater quantity on the periwound than on normal skin (P = 0.0027 and P = 0.0054, respectively) and the number of isolated micro-organisms from the periwound area was larger than that from normal skin. (fujita-hu.ac.jp)
  • Antimicrobial resistant microorganisms are found in people, animals and the environment and can spread globally. (who.int)
  • The microorganisms in the deep seabed live in an environment, which is extremely poor in food. (sciencedaily.com)
  • VITEK® MS was developed for its rapid identification of microorganisms for the pharmaceutical,personal care, and food industries. (biomerieux.com)
  • Aggregate of microorganisms in which cells that are frequently embedded within a self-produced matrix of extracellular polymeric substances (EPSs) adhere to each other and/or to a surface. (wikipedia.org)
  • A biofilm comprises any syntrophic consortium of microorganisms in which cells stick to each other and often also to a surface. (wikipedia.org)
  • The VITEK® 2 Compact system offers quality control testing solutions for fast and accurate microbial identification. (biomerieux.com)
  • Protein showed the highest correlation to the microbial count present on the periwound (r = 0.71, P = 0.0014). (fujita-hu.ac.jp)
  • Even the crudest transcriptional network is shown to substantially increase the fitness of the organism, and this effect persists even when the range of nutrient levels is kept very narrow. (lu.se)
  • Microbial Community and Potential Pathogen Shifts Along an Ornamental Fish Supply Chain. (mbl.edu)
  • Microbial transformations of elements in anaerobic soils play a large role in biogeochemical cycling of nutrients and in greenhouse gas emissions. (kenyon.edu)
  • This book provides information about microbial mats, from early fossils to modern mats located in marine and terrestrial environments. (epa.gov)