【摘要】 乙二醛氧化酶（E.C. 1.2.3.15）属于铜自由基氧化酶家族中“辅助活性酶”的AA5＿1亚家族，为白腐真菌的胞外木质素过氧化物酶和锰过氧化物酶提供胞外H₂O₂，参与木质素的降解。目前，只有玉蜀黍黑粉菌、禾谷镰刀菌和灰葡萄孢菌等少数植物致病真菌的乙二醛氧化酶基因得到鉴定及功能研究。研究结果表明植物致病真菌乙二醛氧化酶基因主要参与菌丝生长发育及致病力的调控。另外，越来越多的证据表明植物致病真菌乙二醛氧化酶可能属于胞外蛋白，参与病原真菌-植物互作，但其胞外的生物学功能及作用机制尚不清楚。因此，本研究详细阐述了植物致病真菌乙二醛氧化酶的类型及其功能的研究现状，并对其潜在的生物学功能以及未来的研究方向进行了展望，旨在为深入解析植物致病真菌乙二醛氧化酶的功能与作用机制提供有价值的思路与指导方向。更多还原

【Abstract】 Glyoxal oxidase（E.C. 1.2.3.15） belongs to the the "auxiliary activities" subfamily AA5＿1 in the radical copper oxidase family. It participates in lignin degradation by providing extracellular H₂O₂ for extracellular lignin peroxidase and manganese peroxidase of white-rot fungi. At present, only a few glyoxal oxidase genes from plant pathogenic fungi, such as Ustilago maydis, Fusarium graminearum and Botrytis cinerea, have been identified and studied. The results showed that the glyoxal oxidase gene of plant pathogenic fungi was mainly involved in the regulation of mycelia growth and pathogenicity. In addition, an increasing amount of evidence suggests that the glyoxal oxidase of plant pathogenic fungi may belong to extracellular protein and participate in fungi-plant interactions,but its extracellular biological function and mechanism remain unknown. Therefore, in this study, the types and functions of glyoxal oxidase in plant pathogenic fungi were described in detail, and its potential biological functions and future research directions were prospected, aiming to provide valuable ideas and guidance for further analysis of the function and mechanism of glyoxal oxidase in plant pathogenic fungi.更多还原