نتایج جستجو برای: incubation of microorganisms

تعداد نتایج: 21166192  

Journal: :jundishapur journal of microbiology 0
saeed zargari department of petroleum engineering, colorado school of mines, colorado, usa amin ramezani department of medical biotechnology, school of advanced medical sciences and technologies, shiraz university of medical sciences, shiraz, ir iran sassan ostvar school of chemical, oregon state university, corvallis oregon, usa rasool rezaei biotechnology institute, shiraz university, shiraz, ir iran ali niazi biotechnology institute, shiraz university, shiraz, ir iran; biotechnology institute, shiraz university, shiraz, ir iran. tel: +98-7116138125, fax: +98- 7112272805 shahab ayatollahi enhanced oil recovery research center, school of engineering, shiraz university, shiraz, ir iran

background petroleum reservoirs have long been known as the hosts of extremophilic microorganisms. some of these microorganisms are known for their potential biotechnological applications, particularly production of extra and intracellular polymers and enzymes. objectives here, 14 petroleum liquid samples from southern iranian oil reservoirs were screened for presence of biosurfactant‐producing...

Journal: :Clinical chemistry 1980
D C Shelly J M Quarles I M Warner

Fluorescent pseudomonads may be identified through examination of the fluorescence "profiles" of diffusible pigments released into the growth medium. The profiles are obtained in the form of an emission-excitation matrix, the elements of which correspond to fluorescence intensity as a function of multiple exciting and emitting wavelengths. Use of a rapid scanning fluorometer to acquire these da...

Journal: :Antimicrobial agents and chemotherapy 1998
G Kampf B Dietze C Grosse-Siestrup C Wendt H Martiny

The survival of three bacterial species and Candida albicans was studied on SPI-ARGENT II. The immediate recovery from silver-impregnated polymer and control polymer (1 cm2) was approximately 10(6) to 10(7) microorganisms. After incubation (37 degreesC) and neutralization of silver with horse serum (5%), surviving organisms were recovered. The survival of the microorganisms on the polymer was n...

Journal: :Blood 2012
Renzo Menegazzi Eva Decleva Pietro Dri

Neutrophil extracellular traps (NETs) are DNA structures released by dying neutrophils and claimed to constitute a new microbicidal mechanism. Killing by NET-forming cells is ascribed to these structures because it is prevented by preincubation with DNase, which has been shown to dismantle NETs, before addition of the target microorganisms. Curiously, the possibility that the microorganisms ens...

ژورنال: علوم آب و خاک 2022

This study investigated the effect of the inoculation of the soil with some phosphorus solubilizing microorganisms (PSM) on inorganic P fractions in sandy soil enriched with inorganic and organic amendments. A factorial experiment arrangement was performed in a completely randomized design with three replications, using two factors: microorganisms (control, Entrobacter cloacae, Brevundimonas, a...

1994
Jean-Pierre Courtiat Roberto C. de Oliveira

| The paper deals with the formal speciication of a general-purpose multimedia synchronization mechanism, known as the conditional delivery mechanism capable of addressing both intra-and inter-stream synchronization issues. The proposed mechanism, initially introduced in 3, 11], is based on the identiication of causal relations among information units of one or several streams and has the purpo...

Journal: :BIOREMEDIATION SCIENCE AND TECHNOLOGY RESEARCH 2022

Due to the fact that it breaks down into acrylamide over time, polyacrylamide is one of most important sources in soil. As a strategy for bioremediation, breakdown by action microbes has seen gradual but consistent increase attention all world. A previously isolated molybdenum-reducing bacterium with amide-degrading capability was further identified on significant parameters contributing optimi...

2011
N. Aliasgharzad S. Oustan

Soil microbial activity is adversely affected by pollutants such as heavy metals, antibiotics and pesticides. Organic amendments including sewage sludge, municipal compost and vermicompost are recently used to improve soil structure and fertility. But, these materials contain heavy metals including Pb, Cd, Zn, Ni and Cu that are toxic to soil microorganisms and may lead to occurrence of more to...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده دامپزشکی 1389

چکیده: بررسی مقایسه ای گونه های مختلف مالاسزیا در پوست و گوش گوساله های نوزاد با مادرانشان با استفاده از روشهای مورفولوژیکی، بیوشیمیایی و فیزیولوژیکی مخمرهای لیپوفیلیک جنس مالاسزیا جزء فلور نرمال جلدی انسان و حیوانات می باشند که تحت شرایطی بیماریزا می شوند. از آنجایی که نه تنها گونه غیر وابسته به چربی بلکه سایر گونه های مالاسزیا از حیوانات مختلف جداسازی می شود لذا بررسی اپیدمیولوژی و انتشار ج...

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