today oil removal from contaminated soil by new methods such as bioremediation is necessary.  in this paper, the effect of chemical fertilizers and aeration on bioremediation of oil-contaminated soil has been investigated. also the control group, (bioremediation of petroleum hydrocarbons in contaminated soil without treatment by chemical fertilizers and aeration treatment was examined. the cond...

methods for measuring toxicity or respiratory activity of microbial cultures can be used as tools for assessing the presence of chemicals and their impact on the streams. the proposed toxicity test is based on the respirometric characteristics of the bacteria according to the principals of biolog’s microplate system. as the microorganism are utilizing the carbon source (peptone), the reductio...

Biodegradation is defined as the biologically catalyzed reduction in complexity of chemical compounds [1]. Indeed, biodegradation is the process by which organic substances are broken down into smaller compounds by living microbial organisms [2]. When biodegradation is complete, the process is called "mineralization". However, in most cases the term biodegra‐ dation is generally used to describ...

background: toxaphene is a chlorinated hydrocarbon insecticide. the residues of which have been documented throughout the biosphere including water, ground water, soil and lake sediments, even though its use was banned some years ago. toxaphene has been known as an important environmental pollutant as a result of its persistence in the environment, bioaccumulation and bio magnification in food ...

While microorganisms are recognized for driving belowground processes that influence the productivity and fitness of plant populations, vast majority bacteria fungi in soil belong to a seed bank consisting dormant individuals. However, performance may be affected by microbial dormancy through its effects on activity, abundance, diversity microorganisms. To test how banks plant-soil interactions...

conclusions due to positive effect of healthy lifestyle on health promotion of individuals, it would be better for the government to provide comprehensive programs and policies in the society to enhance awareness of people about positive effects of health-oriented lifestyle on life and also provide required conditions to have a healthy lifestyle. islamic republic of iran considers all aspects o...

Human oral microbiota is the ecological community of commensal, symbiotic, and pathogenic microorganisms found in cavity. Oral generally exists form a biofilm plays crucial role maintaining homeostasis, protecting cavity preventing disease development. has recently become new focus research for promoting progress diagnosis, assisting treatment, developing personalized medicines. In this review,...