Characterization and Evaluation of Endophytic Bacteria from the Ethno-Medicinal Plant Gynura cripidioides (Gende) of North Eastern Himalayan Region, India
Pramod Kumar Pandey*
Centre for Biotechnology and Bioinformatics, Dibrugarh University, Dibrugarh, Assam (786 004), India
College of Agriculture, Central Agricultural University, Kyrdemkulai, Meghalaya (793 105), India
Raj Narain Singh Yadav
Dept. of Life Sciences, Dibrugarh University, Dibrugarh, Assam (786 004), India
Ramkrishna Samanta
Dept. of Life Sciences, Dibrugarh University, Dibrugarh, Assam (786 004), India
Siddhartha Singh
College of Horticulture & Forestry, Central Agricultural University, Pasighat, Arunachal Pradesh (791 102), India
Amit Kumar Singh
College of Horticulture & Forestry, Central Agricultural University, Pasighat, Arunachal Pradesh (791 102), India
Aditya Pratap Singh
Dept. of Genetics and Plant Breeding, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal (741 252), India
DOI: https://doi.org/10.54083/PHA/2.4.2024/123-130
Keywords: Bio-control, Endophytes, IAA production, PGPR, Siderophore production
Abstract
Bacterial endophytes are bacteria that reside internally within plants, flourishing in a distinct environment that protects them from external adversities and changes in environmental circumstances, unlike microbes that live outside. Their entry into plant tissues occurs through specific ‘hotspot’ areas, such as the root system. After gaining entry, the plants use a variety of secondary metabolites, structural component synthesis, plant immunity, resource competition with pathogens, antioxidant activities and phenylpropanoid metabolism to reduce the effects of both biotic and abiotic stressors. From the Gende (Gynura cripidioides; Family: Asteraceae) that was removed from the Pasighat region in the East Siang District of Arunachal Pradesh, India, endophytic bacteria were recovered. This study set out to evaluate and characterise endophytic bacteria for their cpability to enhance plant growth through various means, including phosphate solubilization, IAA production, siderophore production, growth on nitrogen-free media, exo-polysaccharide production, in-vitro evaluation and antagonistic activity analysis.
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