ABSTRACT

Coastal sand dune (CSD) habitat possesses a stressed and harsher environment. This could act as a potential source for obtaining resourceful novel microorganisms. Actinobacteria from the stressed environment including marine are known to have higher antimicrobial activity. Hence the present study proposes to explore CSD for obtaining potential Actinobacterial strains. Sand sample from a nonrhizosphere zone in Keri Goa was processed for obtaining two strains of Streptomyces spp. namely K2NRBAY005 and K2NRBAW008. These strains showed the closest match with Streptomyces variabilis and Streptomyces albofaciens, respectively after morphological, biochemical, and molecular characterization. These strains were screened for various biotechnological potential. These strains showed antibacterial activity against Staphylococcus aureus and Proteus vulgaris human pathogens. Streptomyces sp. K2NRBAY005 showed the production of 4 hydrolytic enzymes out of 5 tested. Streptomyces sp. K2NRBAW008 showed the only production of amylase. Further, these strains elaborated the various plant growth-promoting factors visually IAA, EPS, ammonia, siderophore production, and phosphate solubilization. Screening of these strains clearly demonstrated the industrial potential. Therefore, the current study proposes CSD as a potential and resourceful habitat for exploring the vital novel microorganisms that could have multipurpose prospectives. Keywords: Antimicrobial activity; Bioprospecting; Coastal Sand Dunes; Hydrolytic enzymes; plant growth-promotion; Streptomyces
Publication date: 01/10/2021

https://ijbpas.com/pdf/2021/October/MS_IJBPAS_2021_5684.pdf

Download PDF
https://doi.org/10.31032/IJBPAS/2021/10.10.5684