School of Life Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P.R. China.
Wanbang Biopharmaceuticals Group Co., Ltd., Xuzhou 221001, Jiangsu, P.R. China.
J Agric Food Chem. 2021 Nov 10;69(44):13045-13054. doi: 10.1021/acs.jafc.1c04585. Epub 2021 Oct 27.
Black spot disease caused by is destructive to the production, transportation, and storage of sweet potato. The antifungal effects of XK29 against through volatile organic compounds (VOCs) were evaluated in this study. The activated carbon assay proved that XK29 could exert antibiotic effects through volatiles. By optimizing the wheat seed weight, inoculation method, concentration, volume, and time, the antifungal activity of XK29 was significantly improved. XK29 fumigation inhibited spore formation and germination and changed the cell morphology of . During the storage of sweet potato tuber roots, XK29 effectively controlled black spot disease and reduced the weight loss and malondialdehyde content. Metabolomic analysis revealed that 21 volatile compounds were released from XK29. Isovaleric acid, isobutyric acid, and 2-methylbutanoic acid effectively inhibited the growth of . These results indicate that XK29 has a good potential to be developed as a microbial fumigation agent.
黑斑病由 引起，对甘薯的生产、运输和储存具有破坏性。本研究评价了 XK29 对 通过挥发性有机化合物（VOCs）的抗真菌作用。活性炭测定证明，XK29 可以通过挥发物发挥抗生素作用。通过优化小麦种子重量、接种方法、浓度、体积和时间，显著提高了 XK29 的抗真菌活性。XK29 熏蒸抑制孢子形成和萌发，并改变 的细胞形态。在甘薯块根贮藏过程中，XK29 有效控制黑斑病，降低失重率和丙二醛含量。代谢组学分析表明，XK29 释放了 21 种挥发性化合物。异戊酸、异丁酸和 2-甲基丁酸有效抑制 的生长。这些结果表明，XK29 具有作为微生物熏蒸剂开发的良好潜力。
