Abstract
Bacteria promote mushroom growth by providing growth factors and vitamins, preventing pathogen growth, and enhancing spore distribution. Soil bacteria involved in the nitrogen cycle showed association with the abundance of ectomycorrhizal fungi. Uncultured microorganisms comprise a significant proportion of complex soil ecosystem. Nanopore sequencing Technologies used a genome-resolved metagenomics approach to evaluate the rhizospheric bacterial diversity of these mushrooms from the tropical forests of West Bengal (India) and the temperate forests of West Kameng districts in Arunachal Pradesh, India. The ectomycorrhizosphere soil of tropical forest has higher abundance of nitrogen fixing bacteria such as Bradyrhizobium diazoefficiens, B. erythrophlei, and B. elkanii whereas the ectomycorrhizosphere soil of temperate forest has higher abundance of Candidatus Solibacter usitatus, Rhodoplanes sp. Z2-YC6860, Candidatus Koribacter versatilis, Bacillus cereus, Granulicella tundricola, G. mallensis, Bradyrhizobium icense, Bradyrhizobium sp. SK17, Acidobacterium capsulatum, Bacillus weihaiensis, Terriglobus saanensis, Planococcus sp. MB-3u-03, Bradyrhizobium sp. CCGE-LA001, and Bradyrhizobium japonicum These microorganisms have deep impact in the growth and development of ectomycorrhizal partners (trees and mushrooms) and be called as mycorrhiza helper bacteria (MHB).
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