نتایج جستجو برای: microbial populations

تعداد نتایج: 343096  

Journal: :Environment international 2001
C K Yang S S Yang

This paper reports a study of the effect of three nuclear and one thermal power plants on the microbial ecology of soils. Populations of bacteria, actinomycetes, fungi, cellulolytic microbes, phosphate-solubilizing microbes and nitrogen-fixing microbes in the soil in the vicinity of each plant were studied. Soils were acidic at three sites, and moisture contents of the power plant soils were lo...

2016
Christopher L Hemme Stefan J Green Lavanya Rishishwar Om Prakash Angelica Pettenato Romy Chakraborty Adam M Deutschbauer Joy D Van Nostrand Liyou Wu Zhili He I King Jordan Terry C Hazen Adam P Arkin Joel E Kostka Jizhong Zhou

UNLABELLED Unraveling the drivers controlling the response and adaptation of biological communities to environmental change, especially anthropogenic activities, is a central but poorly understood issue in ecology and evolution. Comparative genomics studies suggest that lateral gene transfer (LGT) is a major force driving microbial genome evolution, but its role in the evolution of microbial co...

Journal: :Veterinary dermatology 2017
Aline Rodrigues Hoffmann

BACKGROUND Inhabiting a sterile world is no longer an acceptable or desirable concept. Recent studies developed in the microbiome field have unveiled complex microbial populations inhabiting the skin, digestive, respiratory and reproductive tracts. Microbiome studies have opened new venues to explore the human and animal second genome, its functions and its importance in maintaining health. S...

Journal: :FEMS microbiology ecology 2011
Sergio E Morales William E Holben

A major goal in microbial ecology is to link specific microbial populations to environmental processes (e.g. biogeochemical transformations). The cultivation and characterization of isolates using genetic, biochemical and physiological tests provided direct links between organisms and their activities, but did not provide an understanding of the process networks in situ. Cultivation-independent...

آیت اللهی موسوی, سید امین, افسریان, محمد حسین, طاهری سروتین, مهدی, هدایتی, محمد تقی,

Background and purpose: Psoriasis is a chronic inflammatory skin disease characterized by lesions covered with silvery-white scabs of dead skin. This autoimmune disease occurs when the immune system sends out faulty signals that speed up the growth cycle of skin cells. Prevalence of psoriasis in world populations is about 0.5-4% depending on the regions. People with psoriasis have an increased ...

2016
C. Monard S. Gantner S. Bertilsson S. Hallin J. Stenlid

Observations of distributions of microorganisms and their differences in community composition across habitats provide evidence of biogeographical patterns. However, little is known about the processes controlling transfers across habitat gradients. By analysing the overall microbial community composition (bacteria, fungi, archaea) across a terrestrial-freshwater gradient, the aim of this study...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Frank O Aylward John M Eppley Jason M Smith Francisco P Chavez Christopher A Scholin Edward F DeLong

Planktonic microbial communities in the ocean are typically dominated by several cosmopolitan clades of Bacteria, Archaea, and Eukarya characterized by their ribosomal RNA gene phylogenies and genomic features. Although the environments these communities inhabit range from coastal to open ocean waters, how the biological dynamics vary between such disparate habitats is not well known. To gain i...

2018
BENJAMIN J. KOCH THERESA A. MCHUGH MICHAELA HAYER EGBERT SCHWARTZ STEVEN J. BLAZEWICZ PAUL DIJKSTRA JANE C. MARKS REBECCA L. MAU EMBER M. MORRISSEY JENNIFER PETT-RIDGE BRUCE A. HUNGATE

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. 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 i...

Journal: :Applied and environmental microbiology 2012
Xiaohui Wang Man Hu Yu Xia Xianghua Wen Kun Ding

To determine if there is a core microbial community in the microbial populations of different wastewater treatment plants (WWTPs) and to investigate the effects of wastewater characteristics, operational parameters, and geographic locations on microbial communities, activated sludge samples were collected from 14 wastewater treatment systems located in 4 cities in China. High-throughput pyroseq...

Journal: :Applied and environmental microbiology 1977
M E McBride W C Duncan J M Knox

Microbial flora of the skin of three human population groups representing different natural environments was examined quantitatively and qualitatively to determine whether environmental differences in temperature and humidity can influence the microbial flora of normal skin. Five anatomical skin sites - hands, back, axillae, groin, and feet - were sampled from 10 subjects working in a high-humi...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید