Antibiotic Production by Myxobacteria Plays a Role in Predation
نویسندگان
چکیده
منابع مشابه
the american dream in three plays by eugene oneill, tennessee williams, and lorraine hansberry
این مطالعه به نقد و بررسی مفهوم اسطوره ی رویای امریکایی در سه نمایشنامه ی قرن بیستم امریکایی می پردازد، که این نمایشنامه ها عبارتند از: the iceman cometh (مرد یخین می آید) نوشته ی یوجین اونیل، 1940؛ desirea streetcar named (اتوبوسی به نام هوس) نوشته ی تنسی ویلیامز، 1947؛ و in the sun raisin a (انگور خشکیده در آفتاب) ، نوشته ی لورین هنزبری، 1958. هدف از این بررسی، ابتدا شناخت مفهوم رویای امری...
15 صفحه اولThe ppGpp synthetase gene (relA) of Streptomyces coelicolor A3(2) plays a conditional role in antibiotic production and morphological differentiation.
Deletion of most of the coding region of the ppGpp synthetase gene (relA) of Streptomyces coelicolor A3(2) resulted in loss of ppGpp synthesis, both upon entry into stationary phase under conditions of nitrogen limitation and following amino acid starvation during exponential growth, but had no effect on growth rate. The relA mutant, which showed continued rRNA synthesis upon amino acid depleti...
متن کاملThe autoregulator receptor homologue AvaR3 plays a regulatory role in antibiotic production, mycelial aggregation and colony development of Streptomyces avermitilis.
The γ-butyrolactone autoregulator receptor has been shown to control secondary metabolism and/or morphological differentiation across many Streptomyces species. Streptomyces avermitilis produces an important anthelmintic agent (avermectin) and two further polyketide antibiotics, filipin and oligomycin. Genomic analysis of S. avermitilis revealed that this micro-organism has the clustered putati...
متن کاملRole of streams in myxobacteria aggregate formation.
Cell contact, movement and directionality are important factors in biological development (morphogenesis), and myxobacteria are a model system for studying cell-cell interaction and cell organization preceding differentiation. When starved, thousands of myxobacteria cells align, stream and form aggregates which later develop into round, non-motile spores. Canonically, cell aggregation has been ...
متن کاملBiomineralization induced by Myxobacteria
Myxococcus xanthus is a Gram negative, non-pathogenic, common soil bacterium that belongs to the δsubdivision of the Proteobacteria. According to the data, it is demonstrated that, depending on the chemistry of the culture media, M. xanthus is able to induce the formation of phosphates (struvite, schertelite, newberyite), carbonates (calcite, Mg-calcite, vaterite) and sulfates (barite, taylorit...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 2011
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.05052-11