山东农业大学学报(自然科学版),2023,54(3):373-377VOL.54NO.32023JournalofShandongAgriculturalUniversity(NaturalScienceEdition)doi:10.3969/j.issn.1000-2324.2023.03.006NaCl胁迫下湿地植物的形态变化及其对生理应激的影响黄珂百色学院农业与食品工程学院,广西百色533000摘要:本文旨在探索以钠离子为代表的金属离子胁迫下湿地植物的形态及其生理应激的影响，使用复合人工湿地实验设备对人工湿地环境进行模拟，选择菖蒲（Acoruscalamus）和白掌（Spathiphyllumkochii）的高度和外观因素，以及生理应激因素如含水量、脯氨酸、叶绿素、丙二醛和总抗氧化能力等进行分析。研究结果表明，NaCl胁迫下菖蒲和白掌逐渐出现枯黄、落叶甚至枯死现象，其叶绿素含量随时间变化而逐渐减少。同时，NaCl胁迫打破了植物的渗透平衡，出现了膜脂过氧化现象。与菖蒲相比，白掌更能抵御NaCl胁迫，具有更为优秀的总抗氧化能力。从人工湿地类型角度来看，填料床深度为0.6m的人工湿地（0.6-SX）中生长态势最优，更能抵御NaCl胁迫。当NaCl浓度为1%时，能够打破植物对于NaCl胁迫的承受阙值，对其形态及生理产生严重影响。关键词:NaCl胁迫;湿地植物;应激反应中图法分类号:Q945.79文献标识码:A文章编号:1000-2324(2023)03-0373-05TheMorphologicalVariationandtheEffectsofNaClStressonPhysiologicalStressofWetlandPlantsHUANGKeCollegeofAgricultureandFoodEngineering/BaiseUniversity,Baise533000,ChinaAbstract:Toexploretheeffectsofmetalionstress,especiallysodiumions,onthemorphologyandphysiologicalstresscharacteristicsofwetlandplants.Itsimulatedtheartificialwetlandenvironmentusingcompositeartificialwetlandexperimentalequipment,andselectedAcoruscalamusandSpathiphyllumkochiiastheresearchtargets.Itincludesplantmorphologicalindicatorssuchasheightandappearancefactors,aswellasphysiologicalstressindicatorssuchaswatercontent,prolinecontent,chlorophyllcontent,malondialdehydecontent,andtotalantioxidantcapacity.TheresearchresultsfoundthatunderNaClstress,AcoruscalamusandSpathiphyllumkochiigraduallyshowedsignsofyellowing,fallingleaves,andevenwithering.Thechlorophyllcontentgraduallydecreasesovertime.Atthesametime,NaClstressdisruptedtheosmoticbalanceofplants,leadingtomembranelipidperoxidation.ComparedwithAco...
