Actinomycetes that have mycolic acid in the cell walls have been classified under genera such as Corynebacterium, Gordonia, Mycobacterium, Nocardia, Rhodococcus, Tsukamurella, Skermania and Williamsia [1]. Williamsia was introduced in 1999 by Kämpfer et al. [2] to accommodate actinomycetes with atypical cell morphology and mycolic acids with 50 to 56 carbon chain lengths between the genera of R...

Marine-derived actinomycetes have demonstrated an ability to produce novel compounds with medically relevant biological activity. Studying the diversity and biogeographical patterns of marine actinomycetes offers an opportunity to identify genera that are under environmental pressures, which may drive adaptations that yield specific biosynthetic capabilities. The present study describes researc...

background: considering their specific adaption to marine milieus, marine actinomycetes constitute an excellent source for producing unique bioactive substances. they are also important sources of antibiotics and extracellular enzymes, geosmin, and enzymes with potent antibacterial and anticarcinogenic properties and low toxicity. the objective of this study is to isolate actinomycetes producin...

Fusarium spp. damages the roots of crops, its control is with synthetic fungicides, however, marine actinomycetes can be an option to use agrochemicals. The objective this work was identification and morphological characterization as antagonists solani (Mart.) Sacc. isolated from diseased tomato plants mangrove sediment actinomycetes, both identified through taxonomic keys molecular techniques....

Mangroves are the tidal forest existing in the intertidal zone and usually considered as the special marine ecosystem. In the present study, 452 actinomycetes were recovered from nine diferent sites at Maowei Sea Mangrove Reserve in Qinzhou (Guangxi province, China). Among them, Seventy-four strains were purified for 16s RNA gene sequencing and further characterization. The results indicated th...

Mangroves are the tidal forest existing in the intertidal zone and usually considered as the special marine ecosystem. In the present study, 452 actinomycetes were recovered from nine diferent sites at Maowei Sea Mangrove Reserve in Qinzhou (Guangxi province, China). Among them, Seventy-four strains were purified for 16s RNA gene sequencing and further characterization. The results indicated th...

Actinomycetes are interesting as a main producer of secondary metabolites and industrial antibiotics from marine environments. A total of 44 strains of actinomycetes were isolated from Caspian Sea sediments at a depth of 5-10 m. Preliminary screening was done using cross-streak method against 2 gram-positive and 4 gram-negative pathogen bacteria. The most potent strains MN2, MN3, MN38, MN39, MN...

BACKGROUND AND OBJECTIVE Due to the evolution of multidrug-resistant strains, screening of natural resources, especially actinomycetes, for new therapeutic agents discovery has become the interests of researchers. In this study, molecular, chemical and biological screening of soil actinomycetes was carried out in order to search for peptide-producing actinomycetes. MATERIALS AND METHODS 60 ac...

background and purpose: actinomycetes have been discovered as source of antifungal compounds that are currently in clinical use. invasive aspergillosis (ia) due to aspergillus fumigatus has been identified as individual drug-resistant aspergillus spp. to be an emerging pathogen opportunities a global scale. this paper described the antifungal activity of one terrestrial actinomycete against the...

Thermophilic actinomycetes are the primary sensitizing agents in farmer's lung disease. We compared dilution pour-plate and spread-plate methods for their usefulness in enumerating thermophilic actinomycetes in moldy silage dust and evaluated the ability of a nonquantitative gravity settling technique to recover thermophilic actinomycetes from moldy silage. Spread plates and pour plates yielded...