1. Biological control of bacterial soft rot in Chinese cabbage by Lactobacillus plantarum strain BY under field conditions
- Author
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Miyako Higashiyama, Kazuhisa Tsuda, Gento Tsuji, Yasuyuki Kubo, Yoshitaka Kosaka, Hiroshi Ogiyama, Masaaki Mitomi, and Kenji Umemura
- Subjects
0106 biological sciences ,0301 basic medicine ,biology ,Antibiosis ,Biological pest control ,food and beverages ,Pectobacterium carotovorum ,biology.organism_classification ,01 natural sciences ,Plant disease ,Microbiology ,03 medical and health sciences ,Bacterial soft rot ,030104 developmental biology ,Insect Science ,Agronomy and Crop Science ,Pathogen ,Lactobacillus plantarum ,Bacteria ,010606 plant biology & botany - Abstract
Bacterial soft rot caused by Pectobacterium carotovorum subsp. carotovorum is one of the most important diseases of Chinese cabbage. To develop a microbial pesticide that is not only safe but also easily acceptable by consumers, we screened strains of lactic acid bacteria for biocontrol potential. One of 1166 isolates, Lactobacillus plantarum strain BY significantly reduced soft rot disease severity in Chinese cabbage in six different fields in Japan. This isolate also suppressed disease in onion, potato, and tomato. BY populations persisted on wounded Chinese cabbage leaves after spraying. Moreover, BY inhibits pathogen growth in an antibiosis assay. These results strongly suggest that BY inhibits the invasion of the pathogen at wounded sites on leaves and its proliferation in host tissues. This is the first report indicating the application of lactic acid bacteria for biological control of a plant disease under field conditions.
- Published
- 2016
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