Antagonistic and Plant Growth-Promoting Effects of Bacillus velezensis BS1 Isolated from Rhizosphere Soil in a Pepper Field
| Autor: | Kwang-Ho Lee, Byung-Seoung Park, Hee-Yeong Kim, Kyoung Su Kim, Jong-Hwan Shin |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Rhizosphere Siderophore Appressorium biology plant growth-promoting bacteria fungi Colletotrichum scovillei Biological pest control food and beverages biological control Cellulase biology.organism_classification Note 01 natural sciences 010602 entomology Horticulture Seedling Pepper Bacillus velezensis biology.protein Agronomy and Crop Science Mycelium 010606 plant biology & botany |
| Zdroj: | The Plant Pathology Journal |
| ISSN: | 1598-2254 |
| Popis: | Pepper (Capsicum annuum L.) is an important agricultural crop worldwide. Recently, Colletotrichum scovillei, a member of the C. acutatum species complex, was reported to be the dominant pathogen causing pepper anthracnose disease in South Korea. In the present study, we isolated bacterial strains from rhizosphere soil in a pepper field in Gangwon Province, Korea, and assessed their antifungal ability against C. scovillei strain KC05. Among these strains, a strain named BS1 significantly inhibited mycelial growth, appressorium formation, and disease development of C. scovillei. By combined sequence analysis using 16S rRNA and partial gyrA sequences, strain BS1 was identified as Bacillus velezensis, a member of the B. subtilis species complex. BS1 produced hydrolytic enzymes (cellulase and protease) and iron-chelating siderophores. It also promoted chili pepper (cv. Nockwang) seedling growth compared with untreated plants. The study concluded that B. velezensis BS1 has good potential as a biocontrol agent of anthracnose disease in chili pepper caused by C. scovillei. |
| Databáze: | OpenAIRE |
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