نتایج جستجو برای: nocardioform actinomycetes

تعداد نتایج: 2607  

2006
Sachiko Hasegawa Akane Meguro Kazuhiro Toyoda Tomio Nishimura Hitoshi Kunoh

Colonization of host plants by microbial symbionts and avirulent parasites often elicits physiological modifications such as localized and systemic disease resistance1–4) and drought or dehydration tolerance5–7). Among such microbes, soil-inhabiting actinomycetes have attracted much attention as potential biocontrol agents in agriculture because of their ability to produce a variety of antibiot...

Interspecies interaction of actinomycetes will express new gene clusters and may therefore affect the pigmentation, sporulation and production of secondary metabolites. Actinomycetes strains were isolated from Howze Soltan Salt Lake. Binary actinomycete interaction assay was conducted to evaluate its effect on colony morphology and antibiotic production. The molecular identification of the indu...

Journal: :Applied microbiology 1971
J N Fink A J Resnick J Salvaggio

Thermophilic actinomycetes, associated with a hypersensitivity pneumonitis, may be found in compost but also have been detected in heating systems of office buildings. This study was designed to determine whether these organisms were present in residential heating systems. Furnace dust or humidifier water of 12 of 20 homes contained thermophilic actinomycetes, indicating that the organisms may ...

2017
Yi Jiang Qinyuan Li Xiu Chen Chenglin Jiang

Actinobacteria (actinomycetes) have been received much attention, as these bacteria pro‐ duce a variety of natural drugs and other bioactive metabolites. The distribution of acti‐ nomycetes in various natural habitats, including soil, ocean, extreme environments, plant, lichens and animals, is described. The collection and pretreatment of test samples from different sources, design principle of...

Journal: :Biotechnology advances 2015
Usama Ramadan Abdelmohsen Tanja Grkovic Srikkanth Balasubramanian Mohamed Salah Kamel Ronald J Quinn Ute Hentschel

Genomic sequence data have revealed the presence of a large fraction of putatively silent biosynthetic gene clusters in the genomes of actinomycetes that encode for secondary metabolites, which are not detected under standard fermentation conditions. This review focuses on the effects of biological (co-cultivation), chemical, as well as molecular elicitation on secondary metabolism in actinomyc...

Journal: :Jurnal Perlindungan Tanaman Indonesia 2022

Actinomycetes are Gram-positive filamentous bacteria used as biocontrol agents against pathogens. Currently, little research on actinomycetes has been published in Indonesia. The study provides issues related to the most relevant keywords actinomycetes, productive authors and countries research, current future topics research. This paper aims understand status trend of biological control, espec...

2012
S. W. Kulkarni

Effluent of various industries contain number of inhibitory substances which are continuously added in sea via river and results in water pollution. There is need to degrade the organic content to abate water pollution. In the present study, actinomycetes were isolated on glycerol aspargine agar from marine sample of Calangut beach, Goa. The isolates were tested for their potential to tolerate ...

2016
Scott W. Behie Bailey Bonet Vineetha M. Zacharia Dylan J. McClung Matthew F. Traxler

Actinomycetes, filamentous actinobacteria found in numerous ecosystems around the globe, produce a wide range of clinically useful natural products (NP). In natural environments, actinomycetes live in dynamic communities where environmental cues and ecological interactions likely influence NP biosynthesis. Our current understating of these cues, and the ecological roles of NP, is in its infancy...

Journal: :Applied and environmental microbiology 2006
Gilles P van Wezel Preben Krabben Bjørn A Traag Bart J F Keijser Rob Kerste Erik Vijgenboom Josef J Heijnen Barend Kraal

Filamentous actinomycetes are commercially widely used as producers of natural products (in particular antibiotics) and of industrial enzymes. However, the mycelial lifestyle of actinomycetes, resulting in highly viscous broths and unfavorable pellet formation, has been a major bottleneck in their commercialization. Here we describe the successful morphological engineering of industrially impor...

Actinomycetes are a source of a broad variety of secondary metabolites with diverse biological activities, such as antifungi, antibiotics and antitumorals; many of which have been developed for clinical use. In this study, 34 actinomycetes from untouched soils were isolated from Alborz Province-Iran. Evaluation ofantifungal and anti bacterial activities of these isolates, demonstrated the capab...

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