Plant growth promoting bacteria increases biomass, effective constituent, and modifies rhizosphere bacterial communities of Panax ginseng

被引:10
作者
Ji, Wenxiu [1 ,2 ]
Leng, Xue [2 ]
Jin, Zhengxun [1 ]
Li, Hulin [2 ]
机构
[1] Northeast Agr Univ, Coll Agr, Mucai St 59, Harbin 150030, Heilongjiang, Peoples R China
[2] Yanbian Univ, Coll Agr, Pk Rd 977, Yanji 133002, Jilin, Peoples R China
关键词
Panax ginseng; PGPB; root activity; ginsenosides; illumina Miseq; rhizospheric bacteria community; ARABIDOPSIS-THALIANA; TOLERANCE; SOIL; RHIZOBACTERIA; GINSENOSIDES; INOCULATION; SEQUENCES; ACID; GENE;
D O I
10.1080/09064710.2018.1519082
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Purpose: The main aim of this study was to introduce and explore plant growth-promoting bacteria (PGPB) indigenous to ginseng, and to evaluate their ability to improve production and quality, and effect on rhizosphere niche in ginseng.Materials and methods: Endophytic bacteria were isolated from root, stem, and leaf of ginseng from different sites and genotype in China and Korea, screened based on their beneficial properties as PGPB. Nine bacterial isolates were selected according to their plant growth properties including soluble phosphate and potassium, ammonia, auxin and siderophore producing, ACC deaminase, and antagonistic pathogen as well. Changes in ginseng after PGPB inoculation were evaluated with respect to the non-inoculated control.Results and Conclusions: The PGPB isolates were identified as genera Bacillus, Lysinibacillus, Rhizobium, Stenotrophomonas, Erwinia, Ochrobactrum, Enterobacter and Pantoea based on 16S rRNA sequences. Inoculation of G209 and G119 increased not only plant height, root length, fresh weight, and dry weight, but also root activity and the amount of ginsenosides significantly. In particular, using the Illumina Miseq platform, the native bacterial community of rhizospheric soil maintained high community diversity and increased abundance of specific bacteria. Therefore, they may be play a crucial role in sustainable ginseng cultivating in farmland.
引用
收藏
页码:135 / 146
页数:12
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