Isolation and Selection of Functional Microbes for Eco-friendly Turfgrass Management in Golf Course from Livestock Manure Compost

Jeong, Je-Yong; Kim, Young-Sun; Cho, Sung Hyun; Lee, Geung–Joo

doi:10.5660/wts.2017.6.2.157

Cited by 1 publication

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References 13 publications

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“…Bacillus spp. are PGPRs that have been isolated from various sources such as organic matter and soil and are known to inhibit the growth of R. solani [17,18]. Specifically, B. subtilis SA-15 has a strong antifungal activity against various phytopathogens that decompose organic matter, including carbohydrates and proteins [12].…”

Section: Discussionmentioning

confidence: 99%

Biocontrol of Large Patch Disease in Zoysiagrass (Zoysia japonica) by Bacillus subtilis SA-15: Identification of Active Compounds and Synergism with a Fungicide

et al. 2021

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Bacillus subtilis SA-15 is a plant growth-promoting bacterium isolated from non-farming soil. We aimed to identify lipopeptides produced by B. subtilis SA-15 and evaluate the control efficacy of B. subtilis SA-15 against large patch disease caused by Rhizoctonia solani AG 2-2 (IV) in zoysiagrass (Zoysia japonica). Bacillus subtilis SA-15 inhibited mycelial growth of R. solani AG 2-2 (IV) in vitro and produced fengycin A and dehydroxyfengycin A, which are antifungal compounds. Fengycin A and deghydroxyfengycin A inhibited R. solani mycelial growth by 30.4 and 63.2%, respectively. We formulated B. subtilis SA-15 into a wettable powder and determined its control efficiency against large patch in a field trial. The control efficacy was 51.2–92.0%. Moreover, when B. subtilis SA-15 powder was applied together with half the regular dose of the fungicide pecycuron, the control efficacy was 88.5–100.0%. These results indicate that B. subtilis SA-15 can be used to control soil-borne diseases, including large patch caused by R. solani, because of lipopeptide production. The use of this bacterium can also reduce the amount of fungicide needed, providing an eco-friendly management option for turfgrass.

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Section: Discussionmentioning

confidence: 99%