Journal of General Plant Pathology (2018) 84, 58-64

Kirara Saito, Megumi Watanabe, Hidenori Matsui, Mikihiro Yamamoto, Yuki Ichinose, Kazuhiro Toyoda, Akira Kawaguchi and Yoshiteru Noutoshi (2018)
Characterization of the suppressive effects of the biological control strain VAR03-1 of Rhizobium vitis on the virulence of tumorigenic R. vitis
Journal of General Plant Pathology 84 (1), 58-64
Abstract: Rhizobium vitis: strain VAR03-1 is a biological control agent that suppresses grapevine crown gall disease caused by a tumorigenic strain of R. vitis (Ti). Both acetosyringone-induced expression of a virulence gene and the growth of Ti were suppressed in vitro when it was cultivated in the VAR03-1 culture filtrate. These inhibitory effects were reduced by high-temperature treatment or incubation for 72 h. Both activities were detected in the high molecular weight fraction (> 100 kDa) of the filtrate. Our results suggest that the antagonistic effects of VAR03-1 on Ti are mediated by large particle(s) released in the culture media.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Akira Kawaguchi, Kazuhiro Toyoda, Yuki Ichinose

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution
molecular biology - genes

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Allorhizobium vitis	Grapevine (Vitis)
Allorhizobium vitis (antagonist)	Allorhizobium vitis