• Nimisha Vatsyayan
• Dr. Ashok Kumar Ghosh

The soil acts as a reservoir for millions of microorganisms. Already isolated and screened few of the bacterial strains namely, Brevibacillus borstelensis, Paenibacillus dendritiformis whose MTCC NO. are 10644 and 10642 and their plant growth promoting potentials have been established. This further opens the way for future research in this field. A few strains of microbial population of the study were isolated and their pure culture was prepared and maintained in the laboratory. Of the isolated species, two strains of microbes were screened, identified and characterized (Morphological, Biochemical and Molecular parameters). This has provided the basic resource material, which will be further utilized for different fields including agriculture and agro-based industries. These two strains are identified as two different varieties of Aneurinibacillus migulanus, which produce Antibiotic Gramicidin S. Few strains, were screened and characterized. All strains have shown almost +ve result of biochemical tests. The two strains isolated from Gangetic region of Vaishali district of North Bihar have been identified and confirmed by IMTECH, Chandigarh. These strains are Aneurinibacillus migulanus with different MTCC No. and are preserved and catalogued there. Some isolated strains are being purified and culture has been maintained in the laboratory. These strains were sent to IMTECH, Chandigarh for molecular characterization. The ability of Aneurinibacillus migulanus is to produce the Antibiotic Gramicidin S is correlated with Phenotype variation.

Microorganisms, Molecular characterization, Brevibacillus borstelensis, Paenibacillus dendritiformis, Aneurinibacillus migulanus, Gramicidin S, Phenotype.

"Isolation, characterization and cataloguing of microbes from the soil of Gangetic plain of Vaishali district (North Bihar)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 11, page no.574-580, November-2020, Available :http://www.jetir.org/papers/JETIR2011369.pdf

"Isolation, characterization and cataloguing of microbes from the soil of Gangetic plain of Vaishali district (North Bihar)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 11, page no. pp574-580, November-2020, Available at : http://www.jetir.org/papers/JETIR2011369.pdf