植物致病真菌乙二醛氧化酶基因功能研究  

Advances on Glyoxal Oxidase Gene in Plant Pathogenic Fungi

作　　者：冼雪梅 张宇[2,3] 刘辉[1] 王真辉[1] 何其光 Xian Xuemei;Zhang Yu;Liu Hui;Wang Zhenhui;He Qiguang(Rubber Research Institute,Chinese Academy of Tropical Agricultural Sciences,Haikou,570100;Sanya Nanfan Research Institute of Hainan University,Sanya,572000;College of Plant Protection,Hainan University,Haikou,570100)

机构地区：[1]中国热带农业科学院橡胶研究所,海口570100 [2]海南大学三亚南繁研究院,三亚572000 [3]海南大学植物保护学院,海口570100

出　　处：《分子植物育种》2025年第2期451-456,共6页Molecular Plant Breeding

基　　金：海南省自然科学基金项目(321QN331);中央级公益性科研院所基本科研业务费专项(1630022022012)共同资助。

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H_(2)O_(2),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。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 H_(2)O_(2) 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.

关 键 词：乙二醛氧化酶 功能结构域 胞外蛋白 植物-病原菌互作 

分 类 号：Q94[生物学—植物学]