Microbial ecology examines the diversity and activity of micro-organisms in Earth's biosphere. In the last 20 years, the application of genomics tools have revolutionized microbial ecological studies and drastically expanded our view on the previously underappreciated microbial world. This review first introduces the basic concepts in microbial ecology and the main genomics methods that have be...

Microbial weed control represents an innovative means to manage troublesome weeds and utilize the naturally occurring biological herbicides produced by soil microorganisms. These compounds kill or hinder the growth of weeds so that beneficial plant species can gain a competitive advantage. The vast diversity of microorganisms in our environment is largely untapped, and the potential discovery a...

The interactions that occur during the ripening of smear cheeses are not well understood. Yeast-yeast interactions and yeast-bacterium interactions were investigated within a microbial community composed of three yeasts and six bacteria found in cheese. The growth dynamics of this community was precisely described during the ripening of a model cheese, and the Lotka-Volterra model was used to e...

this experiment aimed to investigate the effect of (zero, 20, 40 and 60 mg/kg atriplex forage) malva sylvestris on digestibility and microbial fermentation of atriplex in one-humped camel. fermentation parameters by gas production technique and in vitro digestibility by two-stage digestion were measured by two years old female fistulated camels. addition 40 and 60 mg/kg malva sylvestris increas...

The recent availability of extensive metagenomic sequences from various environmental microbial communities has extended the postgenomic era to the field of environmental microbiology. Although still restricted to a small number of studies, metaproteomic investigations have revealed interesting aspects of functional gene expression within microbial habitats that contain limited microbial divers...

The success rate of embryo production critically depends on several factors. One of the pivotal factors is a technique used for the whole procedure of in vitro fertilization (IVF) and in vitro embryo culture (IVC) (1, 2). Besides the technique selected for IVF / in vitro embryo production (IVEP), there is an important consideration called IVF/IVEP culture dishes disin...

background: swimming is often recommended because of its potentially beneficial effects on the joints and on people’s general sense of well-being . swimming is a great way to relax and beat the summer heat. the dumping of urban and industrial waste waters into the sea, with their high level of pathogens and other polluting agents, raises concern about its consequences for both swimmers’ health ...

conclusions bacillus thuringiensis is very sensitive to the interaction of p. fluorescens, however is capable to survive in soil due to its capacity of sporulate. some of the cells in the form of spores germinated and folded slightly and remained in a constant cycle of sporulation and germination. this confirms that b. thuringiensis ips82 can germinate, grow and sporulate in soil. results the a...

conclusions potato peels were proved to be potentially useful substrates for biosurfactant production by b. pumilus dsvp18. the strain possessed a unique property to reduce surface tension of the media from 72 to 28.7 mn/m. in addition, it showed a stable surface activity over a wide range of temperatures, ph, and saline conditions and had strong antimicrobial activity. this potential of the id...

background and aims. although wearing a white coat is an accepted part of medical and dental practice, it is a potential source of cross-infection. the objective of this study was to determine the level and type of microbial contamination present on the white coats of dental interns, graduate students and faculty in a dental clinic. materials and methods. questionnaire and cross-sectional surve...