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时间:2019-05-11
《植物监测大气污染及其抗性》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、维普资讯http://www.cqvip.com热带亚热带植物学报2003,11(4):348~357Jouma/ofTropicalandSubtropicalBotany植物监测大气污染及其抗性温学孔国辉彭长连林桂珠薛克娜2陆耀东2吴芝扬2刘世忠(1.中国科学院华南植物研究所,广东广州I510650;2广东省佛1h市林业科学研究所,广东佛山528000)摘要:研究了在佛-rh不同污染点东村和五星盆栽的30种绿化植物的叶面积、Fv/Fm、叶片细胞膜渗漏率及光合色素含量相对于清洁对照点华南植物园的差异。结果
2、显示,大气污染条件下,绿化植物叶片的生长受到抑制,PSII最大光化学效率卜降,光合色素发生降解,细胞膜受到了伤害。各实验点所仃植物叶面积、Fv/Fm及光合色素含量平均值均为:植物园五星>东村,而叶片细胞膜渗漏率平均值为:植物园<五星<东村,与大气污染程度相一致。方差分析表明,上述指标【{j叶面积对火气污染最敏感,Fv/Fm受种问差异影响最小受大气污染影响,各生理参数的变化具有不相关性。各项l理参数均表现出抗性的种有自挂木rtoccwplL~’7)fMs)、环榕(Ficusannulata)、广宁油茶(Cam
3、elliasemL~errata);而枫香(Liqui&unbarr肌)1“)为敏感种。关键词:大气污染监洲;绿化植物;生理参数;植物抗性中图分类号:Q945.1l文献标识码:A文章编号:1005-3395(2003)04-0348-10AirPollutionMonitoringbyPlantsandPlantResistanceWENXueKONGGuo一11L1i’PEY~,.Cf1ailliatl’LINGui.zhuXUEKe—naLUYao.dongWUZhi-yangLIUShi—zhongr
4、1SoutitChinaInstituteof,·f“,ztl1eChirte;4rodem一矿.:rlerwes,Guangzhou510650,China;2FoshanInstituteoj’Forestr)rietlccFoshan528000,China)Abstracts:Severalphysiologicalparameterswerecomparedincludingleafarea,cellmembraneleakagerate,Fv/Fmandphotosyntheticpigment
5、scontentinleavesof30speciesofplantsforurbangreening.pottedintwoairpollutedsites,Wuxing(WX)andDongcun(DC),FoshanCity,OuangdongProvince,andonelesspollutedsiteatSouthChinaBotanicalGardeninGuangzhou(BG)forcontro1.Aftergrowingfor3-5months,thegrowthofleaveswasin
6、hibitedandmaximalphotochemicaleficiencyofPSIIandcontentofphotosyntheticpigmentsdecreasedinmostplantsattwopollutedsitesincomparisonwiththelesspollutedsite,Theaveragevaluesofleafarea,Fv/Fm,andphotosyntheticpigmentscontentateachsitewereintheorderofBG>WX>DC,wh
7、iletheaveragevaluesofcellmembraneleakageratewereinthecon~ary.DataanalysisshowedthatleafareawasthemostsensitiveonetoairpollutionandFV/Fmwasslightlyafectedbydiferentspecies.Accordingtothetestedparameters.itisconcludedthatArtocarpushypargyreus,Ficusannulataan
8、dCamelliasemiserrataareresistantspecieswhileLiquidambarformosissensitiveone.Keywords:Airpollutionmonitoring;Plantsforurbangreening;Physiologicalparameters;Resistantplanttoairpollution收稿日期:2003—06—09接受日期:2003—
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