Results 11 to 20 of about 61,932 (302)

Microbial indication of pollution in the surface waters of Peter the Great Bay (Japan Sea) by heavy metals [PDF]

open access: yesИзвестия ТИНРО
Water quality is assessed in some coastal areas of Peter the Great Bay, Japan Sea, by means of microbial indication. In the areas polluted with heavy metals, the number of metal-resistant forms of bacteria in heterotrophic microbial communities varies in
T. V. Boychenko, N. K. Khristoforova
doaj   +3 more sources

Soil Microbial Activity and Biomass in Semiarid Agroforestry Systems Integrating Forage Cactus and Tree Legumes [PDF]

open access: yesAgronomy, 2021
Vegetation cover affects soil organic matter and activity of soil microorganisms. We investigated the intercropping effect of forage cactus with tree legumes on soil microbial biomass and organic matter in the semi-arid tropic, state of Pernambuco ...
Dayanne Camelo   +7 more
doaj   +2 more sources

Relationships among Contrasting Measurements of Microbial Dynamics in Pasture and Organic Farm Soils [PDF]

open access: yesApplied and Environmental Soil Science, 2011
Soil bacteria exhibit short-term variations in community structure, providing an indication of anthropogenic disturbances. In this study, microbial biomass carbon (MBC), potentially mineralizable nitrogen (PMN), community level physiological profiling ...
S. L. Edenborn   +3 more
doaj   +2 more sources

Microbial indicators in natural biofilms developed in the riverbed [PDF]

open access: yesWater Science and Technology, 2010
Microbial indicators such as heterotrophic bacteria, total coliforms, and Escherichia coli in naturally developed riverbed biofilms were investigated. Pebbles covered with natural biofilm were sampled directly from the riverbed at sampling stations ranging from the upstream region within a quasi-national park to the midstream in the urban district ...
Hiroshi, Hirotani, Miyuki, Yoshino
openaire   +3 more sources

Functional dissection of velvet DNA-binding region in Aspergillus nidulans VelB uncovers an essential conserved arginine cluster [PDF]

open access: yesIMA Fungus
Velvet regulators, characterized by a conserved velvet domain, function as central hubs that coordinately govern fungal development, secondary metabolism, stress adaptation, and pathogenicity. The velvet domain is organized into an N-terminal DNA-binding
Wanping Chen   +4 more
doaj   +3 more sources

Legionella: A Promising Supplementary Indicator of Microbial Drinking Water Quality in Municipal Engineered Water Systems

open access: yesFrontiers in Environmental Science, 2021
Opportunistic pathogens (OPs) are natural inhabitants and the predominant disease causative biotic agents in municipal engineered water systems (EWSs).
Chiqian Zhang, Jingrang Lu
doaj   +1 more source

Soil microbial biomass in organic farming system. [PDF]

open access: yes, 2010
Agricultural production systems have to combine management practices in order to sustain soil's profitability and quality. Organic farming is gaining worldwide acceptance and has been expanding at an annual rate of 20% in the last decade, accounting for ...
Araújo, Ademir Sérgio Ferreira de   +6 more
core   +1 more source

Effect of energy limitation on microbial epigenetic modifications [PDF]

open access: yes, 2021
M.S.Epigenetic modifications are often induced in eukaryotic organisms in a response to stress. These modifications can alter gene expression by methylating the genome which can turn genes on or off.
Baughan, Christina
core   +1 more source

Effect of long-term influx of tertiary treated wastewater on native bacterial communities in a dry valley topsoil: 16S rRNA gene-based metagenomic analysis of composition and functional profile [PDF]

open access: yesPeerJ, 2023
Although dumping treated wastewater into soil might provide nutrients and organic matter, it can also expose the ecosystem to biological and chemical risks. A vital indication of soil health and quality is the soil microbial community.
Abdurrahman S. Masrahi
doaj   +2 more sources

Microbiological control of the water condition in the Novik Bay (Peter the Great Bay, Japan Sea)

open access: yesИзвестия ТИНРО, 2017
Quantitative distribution of certain ecological-trophic groups of microorganisms in the Novik Bay (Peter the Great Bay, Japan Sea) is considered for summer-fall season and compared with their state in the Posyet Bay.
Nadezhda K. Khristoforova   +3 more
doaj   +1 more source

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