Environment & We

An International Journal of Science & Technology

 

ISSN: 0975-7112 (Print)

 

ISSN: 0975-7120 (Online)

 

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Kharbyngar et al., 2025 / Environ. We Int. J. Sci. Tech. 20, 39-64

https://doi.org/10.70497/ewijst.2025.0104

 

 

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© Society for Environment and Development, (India)

 

 

Molecular Characterization of Novel Bradyrhizobium Strains Isolated from Native Legumes of Meghalaya

 

Banridor Kharbyngar1, Satyawada Rama Rao2*, Santa Ram Joshi3, Amrita Choudhury4,

Sohini Deb5, Daniel R Wahlang6

1Bio-resources Development Centre (BRDC), Upper Shillong

Shillong-793009, Meghalaya, India

2Department of Life Science,School of Basic Sciences and Research, Sharda University, Greater Noida-201310

3Microbiology Laboratory, Department of Biotechnology and Bioinformatics, North-Eastern Hill University, Shillong-793022, Meghalaya, India

4Plant Biotechnology Laboratory, Department of Biotechnology and Bioinformatics, North-Eastern Hill University, Shillong-793022, Meghalaya, India

5Plant Biotechnology Laboratory, Department of Biotechnology and Bioinformatics, North-Eastern Hill University, Shillong-793022, Meghalaya, India

6State Council of Science Technology and Environment (SCSTE), Meghalaya, Shillong 793003, India

*Email id: srrao22@yahoo.com

ORCID ID: 0000-0003-0309-720X

DOI:10.70497/ewijst.2025.0104

 

Keywords

 

Legumes;

Nodulation;

Nitrogen fixation;

Bradyrhizobium;

Meghalaya

 

 

Abstract

 

Meghalaya part of the Indo-Myanmar biodiversity hotspot, harbors diverse native legumes, yet their association with nitrogen-fixing microsymbionts remains poorly understood. Approximately, 100-200 legumes species occur in North-East India, 60% of which are native. Species such as Desmodium polycarpum and Smithia ciliata are ecologically and medicinally important but their nodulation status is scarely studied. Globally, Bradyrhizobium, a slow-growing genus first isolated from Glycine max, is known for its metabolic versatility, including chemolithotrophy and photosynthetic gene clusters. More than 36 species have been reported from different agro-ecosystems across Asia and South America, yet information from the state of Meghalaya, India is lacking. This knowledge gap limits understanding of rhizobium-legume interactions in a region with high ecological and evolutionary significance. This study aims to elucidate the diversity and effectiveness of microsymbionts associated with nodulation and nitrogen fixation, highlighting their ecological significance.

 

 

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