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논문 기본 정보

자료유형
학술저널
저자정보
Jiwon Kim (Yeungnam University) Mehwish Roy (Yeungnam University) Sung-Ho Ahn (Rural Development Administration) Gnanendra Shanmugam (Yeungnam University) Ji Sun Yang (Dong-A University) Ho Won Jung (Dong-A University) Junhyun Jeon (Yeungnam University)
저널정보
한국식물병리학회 The Plant Pathology Journal The Plant Pathology Journal 제38권 제4호
발행연도
2022.8
수록면
313 - 322 (10page)

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Seed-borne pathogens in crops reduce the seed germination rate and hamper seedling growth, leading to significant yield loss. Due to the growing concerns about environmental damage and the development of resistance to agrochemicals among pathogen populations, there is a strong demand for eco-friendly alternatives to synthetic chemicals in agriculture. It has been well established during the last few decades that plant seeds harbor diverse microbes, some of which are vertically transmitted and important for plant health and productivity. In this study, we isolated culturable endophytic bacteria and fungi from soybean seeds and evaluated their antagonistic activities against common bacterial and fungal seed-borne pathogens of soybean. A total of 87 bacterial isolates and 66 fungal isolates were obtained. Sequencing of 16S rDNA and internal transcribed spacer amplicon showed that these isolates correspond to 30 and 15 different species of bacteria and fungi, respectively. Our antibacterial and antifungal activity assay showed that four fungal species and nine bacterial species have the potential to suppress the growth of at least one seed-borne pathogen tested in the study. Among them, Pseudomonas koreensis appears to have strong antagonistic activities across all the pathogens. Our collection of soybean seed endophytes would be a valuable resource not only for studying biology and ecology of seed endophytes but also for practical deployment of seed endophytes toward crop protection.

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