streptomycetes: characteristics and their antimicrobial activities

Authors

amin hasani

ashraf kariminik

khosrow issazadeh

abstract

the streptomycetes are gram positive bacteria with a filamentous form that present in a wide variety of soil including composts, water and plants. the most characteristic of streptomycetes is the ability to produce secondary metabolites such as antibiotics. they produce over two-thirds of the clinically useful antibiotics of natural origin (e.g., neomycin and chloramphenicol. another characteristic of streptomycetes is making of an extensive branching substrate and aerial mycelium.carbon and nitrogen sources, oxygen, ph, temperature, ions and some precursors can affect production of antibiotics. this review also addresses the different methods to study the antimicrobial activity of streptomyces sp. because of increasing microbial resistance to general antibiotics and inability to control infectious disease has given an impetus for continuous search of novel antibioticsall the word.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

Streptomycetes: Characteristics and Their Antimicrobial Activities

The Streptomycetes are gram positive bacteria with a filamentous form that present in a wide variety of soil including composts, water and plants. The most characteristic of Streptomycetes is the ability to produce secondary metabolites such as antibiotics. They produce over two-thirds of the clinically useful antibiotics of natural origin (e.g., neomycin and chloramphenicol. Another characteri...

full text

Streptomycetes: Characteristics and Their Antimicrobial Activities

The Streptomycetes are gram positive bacteria with a filamentous form that present in a wide variety of soil including composts, water and plants. The most characteristic of Streptomycetes is the ability to produce secondary metabolites such as antibiotics. They produce over two-thirds of the clinically useful antibiotics of natural origin (e.g., neomycin and chloramphenicol. Another characteri...

full text

Marine Streptomycetes: Characteristics and Their Antifungal Activities

Marine microorganisms widely distributed on our oceans of the earth and emerging as the great source for the discovery of natural products. Marine Actinomycetes are virtually unlimited sources of novel compounds with many therapeutic applications and hold a prominent position due to their diversity and proven ability to produce novel bioactive compounds. Actinomycetes represent a high proportio...

full text

Streptomycetes from Marine Seaweeds: Their Antimicrobial and Antibiotic Potential

Recent research has increased our knowledge and understanding of the antimicrobial effect of marine Streptomyces. In a systematic screening effect, Streptomyces isolates from different marine seaweeds were investigated for antimicrobial activity against Vibrio pathogens (V. harveyji, V. parahemolyticus, V. vulnificus and V. algniolyticus) and potentially active secondary metabolites. The differ...

full text

Marine Compounds and their Antimicrobial Activities

Natural products have been regarded as important sources that could produce potential chemotherapeutic agents. In the search for new bioactive entities, investigations were expanded to marine habitats. Mankind has known for the last several thousand years that marine organisms contain substances capable of potent biological activity. However, the first serious investigation of marine organisms ...

full text

Isolation, Characterization and Screening for Antimicrobial Activities of Psychrotolerant Streptomycetes Isolated from Polar Permafrost Soil

Ninety one streptomycetes strains were isolated from permafrost soil in Spitsbergen, Arctic Ocean. Five of them showed antimicrobial activity against Gram-positive, Gram-negative bacteria, yeasts and fungi. The strains were psychrotolerant with growth at temperatures between 4oC and 28oC. Morphological, physiological and biochemical characterizations were investigated and the starins could be a...

full text

My Resources

Save resource for easier access later


Journal title:
international journal of advanced biological and biomedical research

Publisher: casrp publishing company

ISSN 2383-2762

volume 2

issue 1 2014

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023