Novel Biocontrol Strain Bacillus amyloliquefaciens FS6 for Excellent Control of Gray Mold and Seedling Diseases of Ginseng

The biocontrol efficacy of Bacillus amyloliquefaciens FS6 against seedling diseases and gray mold of ginseng (Panax ginseng), as well as application techniques, were evaluated in a series of field trials. FS6 fermentation broth showed a strong antagonistic effect against the ginseng fungal pathogens...

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Veröffentlicht in:Plant disease 2021-07, Vol.105 (7), p.1926-1935
Hauptverfasser: Wang, Rui, Wang, Chunwei, Zuo, Bing, Liang, Xinyuan, Zhang, Danni, Liu, Renxuan, Yang, Lina, Lu, Baohui, Wang, Xue, Gao, Jie
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container_end_page 1935
container_issue 7
container_start_page 1926
container_title Plant disease
container_volume 105
creator Wang, Rui
Wang, Chunwei
Zuo, Bing
Liang, Xinyuan
Zhang, Danni
Liu, Renxuan
Yang, Lina
Lu, Baohui
Wang, Xue
Gao, Jie
description The biocontrol efficacy of Bacillus amyloliquefaciens FS6 against seedling diseases and gray mold of ginseng (Panax ginseng), as well as application techniques, were evaluated in a series of field trials. FS6 fermentation broth showed a strong antagonistic effect against the ginseng fungal pathogens, and the inhibition rates on mycelial growth and spore germination were 84 to 88% and 71 to 72%, respectively. Field evaluation showed that combination of seed and soil treatments exhibited better protection than that of individual treatment alone. FS6 wettable powder soil treatment in combination with thiamethoxam plus metalaxyl-M plus fludioxonil for seed coating performed the best, with >83% overall control efficacy for seedling diseases. FS6 had a long-acting effect of >78% control efficacy on ginseng gray mold at 30 days after the last application, almost 2.5- and 2-fold better than that of B. amyloliquefaciens B7900 wettable powder and cyprodinil, respectively. In addition, FS6 reduced the diversity and relative abundance of fungi and affected the fungi and bacterial composition in the rhizosphere soil of ginseng. Therefore, FS6 can be used to effectively control seedling diseases and gray mold in ginseng.
doi_str_mv 10.1094/PDIS-07-20-1593-RE
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source MEDLINE; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection; American Phytopathological Society Journal Back Issues
subjects Bacillus amyloliquefaciens
Biological Control Agents
Fungi
Life Sciences & Biomedicine
Panax
Plant Diseases - prevention & control
Plant Sciences
Science & Technology
Seedlings
title Novel Biocontrol Strain Bacillus amyloliquefaciens FS6 for Excellent Control of Gray Mold and Seedling Diseases of Ginseng
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