Inoculations of soil by antagonistic strains modify tuberosphere bacterial communities and suppress common scab of potatoes
Abstrakt
Common scab of potatoes is a soil-borne disease causing considerable economic losses worldwide. Although many management practices to control this disease have been introduced, the lack of efficiency increases an interest in effective and environmentally friendly alternatives.
One of the attractive approaches to manage the disease is an application of antagonistic strains into soil. The aim of the current study was to develop a selection approach for suitable biocontrol agents against common scab of potatoes.
Several actinobacterial strains were selected based on their in vitro properties (growth rate and inhibition of two pathogens) and their effect on host plant was tested in a pot assay. Moreover, the alterations in tuberosphere microbial communities and host plant nutrition was analyzed.
Overall, we provided insights into relationships between antagonistic isolates, common scab pathogens, host plant and microbial communities, and their role in the disease control.