نتایج جستجو برای: Microbial populations

تعداد نتایج: 343096  

J Ferguson M Mazhari

The toxic effect of herbicides on non- target microorganisms may influence degradation of organic matter resulting in changes to nutrient cycling. In the present study, different strains of bacteria incubated in media containing different concentrations of glyphosate and paraquat were assessed over a period of two incubation terms. The deleterious impact of the herbicide was observed as glyphos...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2008
reza ezzatian manouchehr voussoughi soheila yaghmaei jahangir abedi koupai mahdi borghaei

petroleum contamination of soil is a serious problem throughout the oil producer countries. vegetation may play an important role in the biodegradation of toxic organic chemicals in soil. for petroleum compounds, the presence of rhizosphere micro flora may accelerate biodegradation of the contaminants. in a greenhouse study, petroleum contaminated soil were treated using phytoremediation . the ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

in current study, 63 samples of bat populations collected from differ regions were used for evaluating the geographic variations. twenty cranial and dental characters for traditional morphometric and landmarks method on the ventral, dorsal skull and mandible for geometry morphometric studies were used. statistical analyses of traditional morphometric and geometry morphometric data indicated low...

Journal: :Chemical engineering 1966

Journal: :Annual Review of Ecology, Evolution, and Systematics 2015

C. Ercole, F. Marotta, M. Del Gallo, M. Pellegrini, V. Centi,

Background: Hand-made cheeses are usually prepared following dissimilar procedures which influence the quality and the organoleptic properties of the products. Objective of the present study was to evaluate how manufacturing season and ripening time affect hand-made Pecorino Abruzzese cheese. Methods: Microbiological and physicochemical characteristics were investigated on raw milk cheeses pro...

2016
Cristina M. Herren Kyle C. Webert Katherine D. McMahon

A central pursuit of microbial ecology is to accurately model changes in microbial community composition in response to environmental factors. This goal requires a thorough understanding of the drivers of variability in microbial populations. However, most microbial ecology studies focus on the effects of environmental factors on mean population abundances, rather than on population variability...

Gholam Reza Pazuki Jahangir Abedi Koupai Mahdi Borghaei Manouchehr Voussoughi, Reza Ezzatian Soheila Yaghmaei

Petroleum contamination of soil is a serious problem throughout the oil producer countries. Vegetation may play an important role in the biodegradation of toxic organic chemicals in soil. For petroleum compounds, the presence of rhizosphere micro flora may accelerate biodegradation of the contaminants. In a greenhouse study, petroleum contaminated soil were treated using phytoremediation . ...

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