منابع مشابه
Survival of T3 coliphage in varied extracellular environments. I. Viability of the coliphage during storage and in aerosols.
The objective of this study was to determine the feasibility of using airborne T3 coliphage as a viral tracer in microbial aerosols. Although T3 coliphage was relatively stable when stored either at temperatures ranging from 21 to 37 C or in the frozen state at -20 C, there was a 2-log loss in infectivity when stored for 72 days at 4 C. Either agitation of stored coliphage suspensions held at 3...
متن کاملPhotodynamic action of proflavine on coliphage T3. I. Kinetics of inactivation.
The photodynamic inactivation of coliphage T3 was studied over a wide range of concentrations of the dye proflavine. With 2 x 10(7) phage/ml, two modes of inactivation were observed. Between 0.25 and 12 to 13 mug/ml, inactivation was biphasic. There was an initial first-order inactivation (Rx1) which became temporally associated with an apparently multiorder process (Rx2) at higher light doses....
متن کاملStudies on the Additivity of Action of Genes Affecting Host Range in Coliphage
Adsorption and heat inactivation studies were made on a series of host range, turbid (ht) mutants of coliphage T2H to determine the mechanisms of phenotypic expression of these genes and of the additivity of gene effects. The ht mutants adsorb to the resistant cell B/2H at a slower rate than the clear h mutant; double and triple ht mutants adsorb with increased efficiency. Some mutants show inc...
متن کاملDevelopment of coliphage T5: ultrastructural and biochemical studies.
Electron microscopic studies of Escherichia coli infected with bacteriophage T5(+) have revealed that host nuclear material disappeared before 9 min after infection. This disappearance seemed to correspond to the breakdown of host deoxyribonucleic acid (DNA) into acid-soluble fragments. Little or no host DNA thymidine was reincorporated into phage DNA, except in the presence of 5-fluorodeoxyuri...
متن کاملsurvey on the rule of the due & hindering relying on the sheikh ansaris ideas
قاعده مقتضی و مانع در متون فقهی کم و بیش مستند احکام قرار گرفته و مورد مناقشه فقهاء و اصولیین می باشد و مشهور معتقند مقتضی و مانع، قاعده نیست بلکه یکی از مسائل ذیل استصحاب است لذا نگارنده بر آن شد تا پیرامون این قاعده پژوهش جامعی انجام دهد. به عقیده ما مقتضی دارای حیثیت مستقلی است و هر گاه می گوییم مقتضی احراز شد یعنی با ماهیت مستقل خودش محرز گشته و قطعا اقتضاء خود را خواهد داشت مانند نکاح که ...
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ژورنال
عنوان ژورنال: Uirusu
سال: 1961
ISSN: 0042-6857,1884-3433
DOI: 10.2222/jsv.11.367