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Rhizospheric microbial communities are driven by at different growth stages and biocontrol bacteria alleviates replanting mortality. | LitMetric

Rhizospheric microbial communities are driven by at different growth stages and biocontrol bacteria alleviates replanting mortality.

Acta Pharm Sin B

Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.

Published: March 2018

AI Article Synopsis

Article Abstract

The cultivation of plants is hindered by replanting problems, which may be caused by plant-driven changes in the soil microbial community. Inoculation with microbial antagonists may efficiently alleviate replanting issues. Through high-throughput sequencing, this study revealed that bacterial diversity decreased, whereas fungal diversity increased, in the rhizosphere soils of adult ginseng plants at the root growth stage under different ages. Few microbial community, such as , Cytophagaceae, , , Sphingomonadaceae, and Zygomycota, were observed; the relative abundance of microorganisms, namely, , Enterobacteriaceae, , Cantharellales, , , and Chytridiomycota, increased in the soils of adult ginseng plants compared with those in the soils of 2-year-old seedlings. 50-1, a microbial antagonist against the pathogenic , was isolated through a dual culture technique. These bacteria acted with a biocontrol efficacy of 67.8%. The ginseng death rate and abundance decreased by 63.3% and 46.1%, respectively, after inoculation with 50-1. Data revealed that microecological degradation could result from ginseng-driven changes in rhizospheric microbial communities; these changes are associated with the different ages and developmental stages of ginseng plants. Biocontrol using microbial antagonists alleviated the replanting problem.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5925392PMC
http://dx.doi.org/10.1016/j.apsb.2017.12.011DOI Listing

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