期刊
CHINESE MEDICINE
卷 14, 期 -, 页码 -出版社
BMC
DOI: 10.1186/s13020-019-0241-1
关键词
Panax ginseng; Biofertilizer; Soil microbial community; Root-rot; High-throughput sequencing
资金
- Beijing Nova Program [Z181100006218020]
- National Natural Science Foundation of China [81603238]
- Fundamental Research Funds for the Central public welfare research institutes [ZXKT17049]
BackgroundPanax ginseng is widely used as functional food and traditional Chinese medicine. To satisfy the market supply and medication safety, biofertilizers are used as agents to stimulate the growth and production of P. ginseng.MethodsIn this study, we used high-throughput sequencing and quantitative polymerase chain reaction to analyze microbial community in soils treated with biofertilizers during the development stages of P. ginseng. Ginsenoside content was detected using high-performance liquid chromatography analysis to evaluate the effects of biofertilizer application.ResultsIn this study, the incidence rate of P. ginseng root rot significantly declined by 40.3-47.3% after application of disease-biocontrol biofertilizers. Bacterial diversity showed increasing trends in soils treated with 3.0-4.5mlkg(-1) of disease-biocontrol biofertilizers compared with those in untreated soils. Principal coordinate analysis ordination revealed that bacterial communities were changed by biofertilizers depending on their application concentration. Relative abundance of potentially beneficial bacterial agents, such as Bacillus, Burkholderia, Rhizobium, Streptomyces, and Mycobacterium, significantly increased compared with that in control. Fusarium of low abundance observed in soils treated with biofertilizers compared with that in untreated soils. P. ginseng yield was enhanced by 17.0-19.1%, and ginsenoside (Rg1 and Rb1) contents were improved after biofertilizer application.ConclusionsOur results reveal that biofertilizers reduced the incidence rate of root rot, increased bacterial diversity, promoted the relative abundance of potentially beneficial bacterial taxa, decreased the abundance of potentially harmful bacterial agents, and then enhanced the yield and quality of P. ginseng.
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