Niche Specialization and Functional Overlap of Bamboo Leaf and Root Microbiota

Abstract

Leaves and roots harbor taxonomically diverse bacterial assemblages which enhance plant growth and performance by increasing nutrient supply and resistance to stress. An extensive investigation of bacterial diversity and composition between leaf and root microbiota of 15 bamboo species differing in rhizome types, lifeforms and sampling sites were conducted by high-through sequencing. The alpha diversity between leaf and root microbiota was not significantly different, whereas, their beta diversity differed remarkably. Niche specialization mainly in species from Actinobacteria was detected which prefer to colonize in roots than leaves. Community structure of leaf microbiota was highly resembled, however, the phylogeny inferred by host's chloroplast data was incongruent with microbiota dendrogram, indicating that phylosymbiosis didn't occur in bamboos and their associated microbiota. Large overlap in functional profiling of leaf and root-associated microbiota was found. Accordingly, we proposed that environmental conditions, structural variation and physiological differences between leaves and roots worked collaboratively for divergence of bamboo microbiota. This study confers to a robust knowledge of bamboo-microbe interaction and provides a list of bacterial lineages for investigation into specific plant-microbe interaction information of which could be used to enhance agricultural and forest productivity.

Combined intensive management of fertilization, tillage, and organic material mulching regulate soil bacterial communities and functional capacities by altering soil potassium and pH in a Moso bamboo forest

“…Bioinformatics processing of 16S rRNA sequences was based on previous studies (Zheng et al, 2018b ; Zhang et al, 2019 ; Zheng and Gong, 2019 ; Zheng and Lin, 2020 ) using QIIME (Caporaso et al, 2010 ), USEARCH (Edgar, 2010 ), and in-house scripts. Briefly, after generating high-quality reads, unique reads were assigned to amplicon sequence variants (ASVs).…”

Biocontrol: Endophytic bacteria could be crucial to fight soft rot disease in the rare medicinal herb, Anoectochilus roxburghii

“…The 16S rRNA sequences obtained from the MiSeq platform were used for microbial ecology analysis. The bioinformatics processing was referred to Hong et al ( 2021 ) and Zheng (Zheng & Gong, 2019 ; Zheng & Lin, 2020 ) using QIIME (Caporaso et al, 2010 ), USEARCH (Edgar, 2010 ), and in‐house scripts. Briefly, after the generation of high‐quality reads, unique reads were clustered to form OTUs at the 99% sequence similarity by the pick_open_reference_otus.py script.…”

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