Antimicrobial activity of octan-3-one released from spent mushroom substrate of shiitake (Lentinula edodes) and its inhibitory effects on plant diseases
Antimicrobial activity of octan-3-one released from spent mushroom substrate of shiitake (Lentinula edodes) and its inhibitory effects on plant diseases
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香菇废菌底物释放的辛烷-3-酮的抗菌活性及其对植物病害的抑制作用
DOI：
10.1007/s10327-022-01110-4
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发表时间：
2023
影响因子：
1.2
通讯作者：
Atsushi Ishihara & Kumiko Osaki-Oka
中科院分区：
文献类型：
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作者：
Yu Muto;Emi Fukushima-Sakuno;Atsushi Ishihara & Kumiko Osaki-Oka
从香菇（Lentinula edodes）的蘑菇废料（SMS）中释放的挥发物已知可有效抑制由芸苔链格孢（Alternaria brassicicicola）引起的甘蓝链格孢菌斑点病。我们分析了挥发性化合物从香菇SMS释放的气相色谱-质谱，并确定辛烷-3-酮作为主要的挥发性化合物。辛烷-3-酮对多种植物病原真菌和细菌具有抑菌活性，对甘蓝斑点落叶病和番茄灰霉病有抑制作用。辛烷-3-酮被观察到是一种抑菌化合物，因为在其去除后，芸苔属真菌的孢子萌发。辛烷-3-酮已经被认为是蘑菇中的一种重要风味化合物，并且被认为具有相对较低的毒性;我们的研究结果表明，它可能有助于保护作物免受温室，作物储藏室和集装箱等封闭空间中的真菌和细菌疾病的侵害。
Volatiles released from the spent mushroom substrate (SMS) of shiitake mushrooms (Lentinula edodes) are known to be effective for suppressing the Alternaria sooty spot disease of cabbage that is caused byAlternaria brassicicola. We analyzed a volatile compound released from shiitake SMS by gas chromatography–mass spectrometry and identified octan-3-one as a major volatile compound. Octan-3-one exerted an antimicrobial activity on a wide range of fungal and bacterial plant pathogens, and it inhibited Alternaria sooty spot of cabbage and gray mold of tomato. Octan-3-one was observed to be a fungistatic compound as after its removal, spores ofA.brassicicolainitiated germination. Octan-3-one is already known as an important flavor compound in mushrooms and is considered to have relatively low toxicity; our findings indicate that it may thus be useful for protecting crops from fungal and bacterial diseases in closed spaces such as greenhouses, crop storage rooms, and shipping containers.