铅、镉胁迫对双孢蘑菇生长及其生理生化活性的影响的开题报告摘要：双孢蘑菇是一种广泛应用于食品工业的食用菌类，但环境中的重金属污染威胁着双孢蘑菇的产量和质量。本文研究了铅、镉胁迫对双孢蘑菇生长和生理生化特性的影响。研究发现，铅、镉胁迫会显著抑制双孢蘑菇的生长和发育。同时，胁迫条件下双孢蘑菇的主要生理生化活性也发生了变化，如过氧化物酶、多酚氧化酶和过氧化氢酶等的活性和蛋白质含量明显下降。但是，对于一些抗氧化物的代表性活性，如超氧化物歧化酶和过氧化物酶等，则表现出一定的适应性。通过本研究可以得出，铅、镉胁迫对双孢蘑菇的生长和代谢活性均产生了负面影响。因此，应当加强环境保护与治理工作，以保护双孢蘑菇资源的产量和质量。关键词：铅、镉胁迫；双孢蘑菇；生长；生理生化特性Abstract:TheeffectofleadandcadmiumstressonthegrowthandphysiologicalandbiochemicalactivitiesofAgaricusbisporuswereinvestigatedinthisstudy.TheresultsshowedthatleadandcadmiumstresssignificantlyinhibitedthegrowthanddevelopmentofA.bisporus.Understressconditions,themainphysiologicalandbiochemicalactivitiesofA.bisporusalsochangedsignificantly,suchasthedecreaseofperoxidase,polyphenoloxidase,andcatalaseactivitiesandproteincontent.However,forsomerepresentativeactivitiesofantioxidants,suchassuperoxidedismutaseandperoxidase,therewasacertaindegreeofadaptability.ThisstudyshowedthatleadandcadmiumstresshadnegativeeffectsonthegrowthandmetabolicactivitiesofA.bisporus.Therefore,environmentalprotectionandcontrolshouldbestrengthenedtoprotecttheyieldandqualityofA.bisporusresources.Keywords:leadandcadmiumstress;Agaricusbisporus;growth;physiologicalandbiochemicalcharacteristics.