Diversity, distribution, and antagonistic activities of rhizobacteria of Panax notoginseng.

ABSTRACT:

Background

Rhizobacteria play an important role in plant defense and could be promising sources of biocontrol agents. This study aimed to screen antagonistic bacteria and develop a biocontrol system for root rot complex of Panax notoginseng.

Methods

Pure-culture methods were used to isolate bacteria from the rhizosphere soil of notoginseng plants. The identification of isolates was based on the analysis of 16S ribosomal RNA (rRNA) sequences.

Results

A total of 279 bacteria were obtained from rhizosphere soils of healthy and root-rot notoginseng plants, and uncultivated soil. Among all the isolates, 88 showed antagonistic activity to at least one of three phytopathogenic fungi, Fusarium oxysporum, Fusarium solani, and Phoma herbarum mainly causing root rot disease of P

SUBMITTER: Fan ZY 

PROVIDER: S-EPMC4845043 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature