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Streptomyces spp from Black Pepper Rhizosphere: A Boundless Reservoir of Antimicrobial and Growth Promoting Metabolites

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Title Streptomyces spp from Black Pepper Rhizosphere: A Boundless Reservoir of Antimicrobial and Growth Promoting Metabolites
Not Available
 
Creator Anusree T
Suseela Bhai R
Ahammed Shabeer T.P
Dasharath Oulkar
 
Subject Black pepper
culture filtrate
hyperparasitism
Phytophthora capsici
secondary metabolites
 
Description Not Available
The present work was undertaken with an objective to study the effect of culture filtrates and secondary metabolites of three Streptomyces spp. from black pepper rhizosphere having promising biocontrol and growth promoting traits on different developmental stages of pathogens like Phytophthora capsici and Sclerotium rolfsii. The study also focuses on identification of compounds responsible for the antimicrobial and growth promotive activity. Crude culture filtrate of IISRBPAct1 and IISRBPAct25 were found inhibitory to mycelial growth of P. capsici. Diluted culture filtrate of IISRBPAct1 (2 %) and IISRBPAct25 (5 %) were found inhibitory to the sporangia formation. Crude culture filtrate of IISRBPAct1 can completely inhibit the zoospore germination while it was inhibited to 98.6 % and 87 % by 10 % diluted extracts of IISRBPAct1 and IISRBPAct25 respectively. IISRBPAct1 showed 51.27 % inhibition of mycelial growth of S. rolfsii, while IISRBPAct25 and IISRBPAct42 showed 57.63 % and 26.90 % inhibition respectively. IISRBPAct1 is highly inhibitory to sclerotial formation even at 1 % concentration. The secondary metabolites of the three isolates were extracted in three solvent systems and their activity profile was detected and characterized by HPTLC. High resolution UPLC- (ESI)-QToF-MS analysis of the extracts revealed the presence of a vast array of antifungal compounds that supports the antimicrobial activity of culture filtrate and metabolites of the isolates.
Not Available
 
Date 2020-07-29T16:18:20Z
2020-07-29T16:18:20Z
2019-03-01
 
Type Research Paper
 
Identifier T. Anusree, R. Suseela Bhai, T.P. Ahammed Shabeer & Dasharath Oulkar (2019) Streptomyces spp from Black Pepper Rhizosphere: A Boundless Reservoir of Antimicrobial and Growth Promoting Metabolites, Journal of Biologically Active Products from Nature, 9:1, 1-23, DOI: 10.1080/22311866.2018.1561327
https://doi.org/10.1080/22311866.2018.1561327
http://krishi.icar.gov.in/jspui/handle/123456789/38517
 
Language English
 
Relation Not Available;
 
Publisher Taylor & Francis