نتایج جستجو برای: soil and water bacteria

تعداد نتایج: 16988197  

2011
S. BOHN J. GEBERT

Basically, the activity of the methane oxidizing bacteria is limited by the availability of oxygen in the landfill cover soil. Enforced by the use of fine-grained soils like silt, the surface tends to crust due to vertical erosion, blocking pores required for gas exchange. A column study was carried out to examine the impact of vegetation on improving the aeration of critical soil material and ...

2015
Janet M. Wood

Microbes respond to osmotic challenges in diverse, variable, and extreme natural environments Exposure to diverse environments is a hallmark of microbial life. Microbes are everywhere; collectively, microbes experience everything. They live inside and outside eu-karyotic hosts, in soil, water, and air at diverse planetary sites. They may exist as individuals (planktonic growth) or aggregates, a...

Journal: :archives of clinical infectious diseases 0
masoud mardani infectious diseases and tropical medicine research center, shaheed beheshti medical university, tehran, ir iran; infectious diseases and tropical medicine research center, shaheed beheshti medical university, tehran, ir iran latif gachkar infectious diseases and tropical medicine research center, shaheed beheshti medical university, tehran, ir iran shahin najar peerayeh infectious diseases and tropical medicine research center, shaheed beheshti medical university, tehran, ir iran ali asgari infectious diseases and tropical medicine research center, shaheed beheshti medical university, tehran, ir iran bahareh hajikhani infectious diseases and tropical medicine research center, shaheed beheshti medical university, tehran, ir iran ramezanali amiri infectious diseases and tropical medicine research center, shaheed beheshti medical university, tehran, ir iran

background bottled mineral water is generally considered more pure than tap water in developing countries. immunocompromised patients and those with co morbid conditions are often offered bottled mineral water since they are believed to be safer. the present study was designed to determine the risk of common bacterial contamination of commercially available bottled mineral water in iran. materi...

Journal: :international journal of advanced biological and biomedical research 2014
negar amini boroujeni mehdi hassanshahian sayed mohammad reza khoshrou

phenol and phenol compounds are environmental pollutants present in industrial wastewaters such as, coal tar, oil refineries and petrochemical plants exist. phenol removal from industrial effluent is extremely important in protection of environment. recently phenol biodegradation has been considered. marine bacteria are the most important phenol biodegrader. in this study, the phenol-degrading ...

2015
Jie-ping Wang Bo Liu Guo-hong Liu Rong-feng Xiao Xue-fang Zheng Huai Shi Ci-bin Ge

Bacillus pseudalcaliphilus PN-137(T) (DSM 8725) is a Gram-positive, spore-forming, alkaliphilic, and halotolerant bacterium. Here, we report the 4.49-Mb genome sequence of B. pseudalcaliphilus PN-137(T), which will accelerate the application of this alkaliphile and provide useful information for genomic taxonomy and phylogenomics of Bacillus-like bacteria.

Rezaei Kalantary, Roshanak, Bahari, Niloufar, Esrafili, Ali, Jonidi Jafari, Ahmad,

Background: Cr (VI) is a highly toxic and carcinogenic contaminant and that are used in the steel industry and other chemical industries such as the leather industry, pigment production, electroplating of metals and the production of anticorrosive compounds. Its waste enters the environment and subsequently enters the water and food sources. Therefore, in order to protect the environment as wel...

Journal: :Journal of environmental quality 2009
Jorge A Guzman Garey A Fox Robert W Malone Ramesh S Kanwar

Bacteria transport in soils primarily occurs through soil mesopores and macropores (e.g., biopores and cracks). Field research has demonstrated that biopores and subsurface drains can be hydraulically connected. This research was conducted to investigate the importance of surface connected and disconnected (buried) biopores on Escherichia coli (E. coli) transport when biopores are located near ...

2007
M. A. Whitelaw-Weckert L. Rahman N. Coombes

This study examined the effect of permanent swards and bare soil (by repeated herbicide treatment) on soil microbial counts in Australian cool and warm climate vineyards. In both climates, hot water extractable soil C (HWC) in the vine row was increased by 73% after 3 years of sward development. Most of the soil bacterial counts were greatly decreased by the herbicide treatment and principal co...

Arezou Jafari, Mohammad Hossein Shabani Seyed Mohammad Mousavi

Microbial enhanced oil recovery (MEOR) is an economical method used to improve the oil recovery from reservoirs. In the MEOR techniques, by applying different microorganisms, a variety of products such as bioacid, biogas, biosurfactant, and biopolymer are generated, among which biosurfactant, one of the important metabolites, is produced by bacteria. It is worthy to note that bacteria are suita...

Journal: :Chemosphere 2010
Mohsen Soleimani Majid Afyuni Mohammad A Hajabbasi Farshid Nourbakhsh Mohammad R Sabzalian Jan H Christensen

Phytoremediation is a promising technique for cleaning petroleum contaminated soils. In this study, the effects of two grass species (Festuca arundinacea Schreb. and Festuca pratensis Huds.), infected (E(+)) and non-infected (E(-)) by endophytic fungi (Neotyphodium coenophialum and Neotyphodium uncinatum, respectively) on the degradation of petroleum hydrocarbons in an aged petroleum contaminat...

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