Canadian Journal of Microbiology - Revue Canadienne de Microbiologie (2015) 61, 257-262

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Pingping Sun, Xinbei Zhao, Nini Shangguan, Dongwei Chang and Qing Ma (2015)
The roles of inoculants' carbon source use in the biocontrol of potato scab disease
Canadian Journal of Microbiology - Revue Canadienne de Microbiologie 61 (4), 257-262
Abstract: Despite the application of multiple strains in the biocontrol of plant diseases, multistrain inoculation is still constrained by its inconsistency in the field. Nutrients, especially carbons, play an important role in the biocontrol processes. However, little work has been done on the systematic estimation of inoculants' carbon source use on biocontrol efficacies in vivo. In the present study, 7 nonpathogenic Streptomyces strains alone and in different combinations were inoculated as biocontrol agents against the potato scab disease, under field conditions and greenhouse treatments. The influence of the inoculants' carbon source use properties on biocontrol efficacies was investigated. The results showed that increasing the number of inoculated strains did not necessarily result in greater biocontrol efficacy in vivo. However, single strains with higher growth rates or multiple strains with less carbon source competition had positive effects on the biocontrol efficacies. These findings may shed light on optimizing the consistent biocontrol of plant disease with the consideration of inoculants' carbon source use properties.
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Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
application technology
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Streptomyces scabiei
Streptomyces (genus - antagonists)	Streptomyces scabiei