Streptomyces avermitilis sp. nov., nom. rev., a taxonomic home for the avermectin-producing streptomycetes.
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منابع مشابه
Dactylosporangium luridum sp. nov., Dactylosporangium luteum sp. nov. and Dactylosporangium salmoneum sp. nov., nom. rev., isolated from soil
Forty strains isolated from soil taken from a hay meadow were assigned to the genus Dactylosporangium on the basis of colonial properties. 16S rRNA gene sequence analysis showed that the isolates formed a group that was most closely related to the type strain of Dactylosporangium aurantiacum, but well separated from other Dactylosporangium type strains and from 'Dactylosporangium salmoneum' NRR...
متن کاملEngineered biosynthesis of milbemycins in the avermectin high-producing strain Streptomyces avermitilis
BACKGROUND Milbemycins, produced from Streptomyces hygroscopicus subsp. aureolacrimosus and Streptomyces bingchenggensis, are 16-membered macrolides that share structural similarity with avermectin produced from Streptomyces avermitilis. Milbemycins possess strong acaricidal, insecticidal, and anthelmintic activities but low toxicity. Due to the high commercial value of the milbemycins and incr...
متن کاملIsolation, Characterization and Selection of Avermectin-Producing Streptomyces avermitilis Strains From Soil Samples
BACKGROUND Streptomyces avermitilis, belonging to Actinomycetes, is specialized for production of avermectin, used as an anthelmintic and insecticidal agent. It is mostly found in soil and its isolation is very crucial for medically important avermectin production. OBJECTIVES In the present study, 10 bacterial isolates lacking antimicrobial activities were isolated from the soil samples colle...
متن کاملControl of avermectin biosynthesis in Streptomyces avermitilis for the selective production of a useful component.
I. Biosynthesis of Avermectins A. Incorporation of Labeled Precursors B. Biosynthetically Blocked Mutants and Characteristics of Each Step in Avermectin Biosynthetic Pathway 1. aveA {aveAI and aveAIh step for polyketide synthase) 2. aveB (step for glycosylation) 3. aveC (step for C22~23-dehydration) 4. aveD (step for C5 O-methylation) 5. aveE (step for furan ring formation at C6 to C8a) 6. aveF...
متن کاملStreptomyces stramineus sp. nov., a new species of the verticillate streptomycetes.
Strain NRRL 12292T, which produces the bleomycin-like antibiotics LL-BO1208 alpha and LL-BO1208 beta, forms umbels consisting of chains of smooth-surface ovoid spores that are borne on verticils on the serial mycelia, indicating that it is a member of the verticillate group of the genus Streptomyces formerly classified in the genus Streptoverticillium. This strain was compared morphologically a...
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ژورنال
عنوان ژورنال: International Journal of Systematic and Evolutionary Microbiology
سال: 2002
ISSN: 1466-5026,1466-5034
DOI: 10.1099/00207713-52-6-2011