Journal article

Sorghum rhizosphere effects reduced soil bacterial diversity by recruiting specific bacterial species under low nitrogen stress

Ai-Lian Wu, Xiao-Yan Jiao, Jin-Song Wang, Er-Wei Dong, Jun Guo, Li-Ge Wang, An-Qi Sun, Hang-Wei Hu

SCIENCE OF THE TOTAL ENVIRONMENT | ELSEVIER | Published : 2021

Abstract

Rhizosphere microbiota play a pivotal role in promoting plant growth and defending against pathogens, but their responses to abiotic environmental stress remain largely elusive. Here, we investigated the influences of low-N stress on rhizosphere bacteria of six sorghum cultivars in a glasshouse experiment. The alpha diversity of bacteria (as revealed by Shannon diversity and Chao1 richness indices) was remarkably lower in rhizosphere soils than in bulk soils, and was significantly higher under low-N stress than under N addition. Principal coordinates analysis revealed that the bacterial community compositions in rhizosphere soils were clearly separated from bulk soils, and the rhizosphere so..

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University of Melbourne Researchers

Grants

Awarded by China Agriculture Research System


Awarded by Natural Science Foundation for Young Scientist of Shanxi Province


Awarded by Natural Science Foundation Incubation Project of Shanxi Academy of Agricultural Sciences


Funding Acknowledgements

This research was supported by the China Agriculture Research System (CARS-06-13.5-A20), the Natural Science Foundation for Young Scientist of Shanxi Province (201901D211558) and theNational Natural Science Foundation Incubation Project of Shanxi Academy of Agricultural Sciences (TGJPY2006).