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Volatiles from white-rot fungi for controlling plant pathogenic fungi

机译：白腐真菌挥发物用于控制植物病原真菌

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摘要

Fungal volatile secondary metabolites play important roles in mediating antagonistic and beneficial interactions among organisms. The effects of eight strains of white-rot fungi cultured on potato waste against the mycelial growth of Botrytis cinerea, Fusarium oxysporum and Mucor miehei were investigated using a bi-compartmented Petri dish assay. The chemical composition of volatile organic compounds released from the strain with the highest inhibitory effect was also investigated by headspace solid-phase microextraction and gas chromatography/mass spectrometry analysis. Of the eight white-rot fungi evaluated, Anthracophyllum discolor. Sp4 showed a high inhibitory activity against M. miehei (approximately 76%) and B. cinerea (approximately 20%). F. oxysporum was inhibited to a lesser extent (approximately 10%) by A. discolor and T. versiscolor. The gas chromatography/mass spectrometry analysis showed nine main volatile compounds released from A. discolor Sp4, among them are the sesquiterpenes-bisabolene and bulnesene, and the chlorinated aromatic compounds 1,5-dichloro-2,3-dimethoxybenzene, 3,5-dichloro-4-methoxybenzaldehyde and 3-chloro-4-methoxybenzaldehyde. Some of which have been reported previously with antimicrobial activity. The antifungal activity and volatile profile of A. discolor have not been previously reported.
机译：真菌挥发性次生代谢物在介导生物之间的拮抗和有益相互作用中起重要作用。使用双室陪替氏培养皿试验研究了八种在马铃薯废弃物上培养的白腐真菌菌株对灰葡萄孢，尖孢镰刀菌和Mucor miehei菌丝生长的影响。还通过顶空固相微萃取和气相色谱/质谱分析法研究了具有最高抑制作用的菌株释放的挥发性有机化合物的化学组成。在评估的八种白腐真菌中，炭疽菌变色。 Sp4显示对M. miehei（约76％）和B. cinerea（约20％）的高抑制活性。变色曲霉和紫花苜蓿对尖孢镰刀菌的抑制程度较小（约10％）。气相色谱/质谱分析表明，九种散发性变色菌Sp4释放出9种主要挥发性化合物，其中是倍半萜-双大麻酚和戊烯，以及氯化芳族化合物1,5-二氯-2,3-二甲氧基苯，3,5-二氯-4-甲氧基苯甲醛和3-氯-4-甲氧基苯甲醛。先前已经报道了其中一些具有抗菌活性。先前尚未报道变色曲霉的抗真菌活性和挥发性特征。

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