Results 181 to 190 of about 6,570 (218)
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Effects of a sulfonylurea herbicide on the soil bacterial community
Environmental Science and Pollution Research, 2014Sulfonylurea herbicides are widely used on a wide range of crops to control weeds. Chevalier® OnePass herbicide is a sulfonylurea herbicide intensively used on cereal crops in Algeria. No information is yet available about the biodegradation of this herbicide or about its effect on the bacterial community of the soil.
Arabet, Dallel +9 more
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Transcriptional activity of paddy soil bacterial communities
Environmental Microbiology, 2009Summary Bulk mRNA was used to explore the transcriptional activity of bacterial communities in oxic versus anoxic paddy soil. Two microbial cDNA libraries were constructed from composite samples using semi‐randomly primed RT‐PCR. cDNAs averaged 500–600 bp in length and were treated as expressed sequence tags (ESTs)
Shrestha, P. +3 more
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The Biogeography of Ammonia-Oxidizing Bacterial Communities in Soil
Microbial Ecology, 2009Although ammonia-oxidizing bacteria (AOB) are likely to play a key role in the soil nitrogen cycle, we have only a limited understanding of how the diversity and composition of soil AOB communities change across ecosystem types. We examined 23 soils collected from across North America and used sequence-based analyses to compare the AOB communities in ...
Fierer, Noah +3 more
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Exploration of soil bacterial communities for their potential as bioresource
Bioresource Technology, 2006Soil is a repository of diverse microorganisms, which has frequently been used to isolate and exploit microbes for industrial, environmental and agricultural applications. Knowledge about the structure and dynamics of bacterial communities in soil has been limited as only a small fraction of bacterial diversity is accessible to culture methods ...
Suresh Kumar, Dubey +2 more
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Bacterial Community Structure at the Microscale in Two Different Soils
Microbial Ecology, 2016The spatial distributions of bacteria in the soil matrix have a role in ecosystem function, for example, at the small scale, through gene transfer or xenobiotic degradation. Soil bacterial biogeography has been evidenced at the large scale, but data are scarce at the small scale.
Michelland, Rory +3 more
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Bacterial communities and enzyme activities of PAHs polluted soils
Chemosphere, 2004Three soils (i.e. a Belgian soil, B-BT, a German soil, G, and an Italian agricultural soil, I-BT) with different properties and hydrocarbon-pollution history with regard to their potential to degrade phenanthrene were investigated. A chemical and microbiological evaluation of soils was done using measurements of routine chemical properties, bacterial ...
V. Andreoni +7 more
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The Diversity of Bacterial Communities in Urban Soils
Eurasian Soil Science, 2018Urbanozems (Urbic Technosols) contaminated by heavy metals and polychlorbiphenyls (Urbic Technosols Toxic) and intruzems (Urbic Technosols Toxic) were studied in Moscow; additionally, we studied recreazems (Urbic Technosols Thaptohumic) and culturozems (Urbic Technosols Pantohumic) on the territory of the Botanical Garden of Moscow State University ...
L. V. Lysak, E. V. Lapygina
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On the Microgeography of Soil Bacterial Communities
The highly fragmented soil physical environment and the dynamic aqueous phase jointly constrain bacterial life by limiting cell dispersion and modulating diffusion and access to patchy nutrients. A modeling framework that integrates soil hydration conditions with soil organic carbon inputs provides systematic estimates of size distributions and ...Samuel Bickel, Dani Or
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Bacterial community structure in fumigated soil
Soil Biology and Biochemistry, 2014Abstract Soil microbial biomass has been determined since the mid 1970's by the chloroform fumigation incubation technique as proposed by Jenkinson and Powlson (1976). The microbial biomass C can be determined by subtracting the CO2 emitted from an unfumigated soil (mineralization of soil organic matter) from that emitted from a chloroform fumigated ...
Cristina A. Domínguez-Mendoza +9 more
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Journal of Environmental Science and Health, Part B, 2010
Dissipation of Sulfonylurea herbicides has rarely been studied due to their low application dosage. In this study, two herbicides, chlorsulfuron and imazosulfuron, were applied to both Podu (Pu) and Wolylin (Wl) soils at concentrations of 10 mg kg(-1) or 50 mg kg(-1) with soils at filled water holding capacity and incubation under 30 degrees C. Changes
Yei-Shung, Wang +3 more
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Dissipation of Sulfonylurea herbicides has rarely been studied due to their low application dosage. In this study, two herbicides, chlorsulfuron and imazosulfuron, were applied to both Podu (Pu) and Wolylin (Wl) soils at concentrations of 10 mg kg(-1) or 50 mg kg(-1) with soils at filled water holding capacity and incubation under 30 degrees C. Changes
Yei-Shung, Wang +3 more
openaire +2 more sources