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时间:2020-05-24
《美丽微孢藻种植水对水华鱼腥藻的化感抑制作用研究.pdf》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、环境保护科学第40卷第3期2014年6月美丽微孢藻种植水对水华鱼腥藻的化感抑制作用研究谭海剑。,潘伟斌,陈敏毅,姚伟卿。。(1.广州市环境技术中心,广东广州510180;2.华南理工大学环境与能源学院,广东广州510006;3.广东环境保护工程职业学院,广东佛山528216)摘要:为探讨美丽微孢藻对水华藻类的化感作用,研究了美丽微孢藻种植水对水华鱼腥藻的光密度、叶绿素a和细胞活性的影响。结果表明:浓度为25%的美丽微孢藻种植水在(卜2d时可显著抑制水华鱼腥藻生长,但在2d后无法对其产生显著抑制;浓度为50%的美丽微孢藻种植水在整个实验周期内均可显著抑制水华鱼腥藻生长;浓度为25%的美丽
2、微孢藻种植水在短期内会使大部分藻细胞处于死亡或低活性状态,但在7d时有31.40%的藻细胞恢复了高活性状态,其化感控藻作用有限;浓度为50%的美丽微孢藻种植水在整个实验周期内均使大部分藻细胞均处于死亡或低活性状态,具有较强的化感抑制作用。关键词:美丽微孢藻;种植水;水华鱼腥藻;化感抑制作用中图分类号:X513文献标志码:AStudyofAllelopathicInhibitionofAnabaenaFlos-aquaebyMicrosporaAmoenaCultureWaterTanHaijian’,PanWeibin,ChenMinyi’,YaoWeiqing2’(1.Guangzh
3、ouEnvironmentalTechnologyCenter,Guangzhou51O180,China;2.CollegeofEnvironmentandEnergy,SouthChinaUniversityofTechnology,Guangzhou510006,China;3.GuangdongVocationalCoilegeofEnvironmentalProtectionEngineering,Foshan528216,China)Abstract:TodiscussallelopathicinhibitionofAnabaenaFlos-aquaebyMicrospor
4、aAmoenaculturewater,inthepaper,theinfluencesofMicrosporaAmoenaculturewateronopticaldensity,ChlorophyllAandcellactivityofAnabaenaFlos-aquaewerestudied.Theresultsshowedthatculturewaterwiththeconcentrationof25%MicrosporaAmoenacouldsignificantlyinhibitthegrowthofAnabaenaFlos-aquaeinthefirsttwodays,b
5、utfromthethirdday,theinhibitionwasnotassignificantasintheprevioustwodavs.Culturewaterwiththeconcentrationof50%MicrosporaAmoenacouldsignificantlyinhibitthegrowthofAnabaenaFlos—aquaewithinthewholeexperimentalperiod.Culturewaterwiththeconcentrationof25%MicrosporaAmoenacouldleadmostalgalcellsintoade
6、athorlowactivitystateinashortperiod.butthehighactivityof31.40%ofthealgaleellswouldberecoveredintheseventhday.Therefore,allelopathicinhibitionofthealgalbytheculturewaterwiththeconcentrationof25%MicrosporaAmoenawaslimited.Culturewaterwiththeconcentrationof50%MicrosporaAmoenacouldleadmostalga1.cell
7、sintoadeathorlowactivitystateduringthewholeexperimentalperiod,withstrongerallelopathicinhibition.Keywords:MicrosporaAmoena;CultureWater;AnabaenaFlos-aquae;AllelopathicInhibitionCLCnumber:X513水生植物在富营养化水体控藻和生态修复中和他感作用等。目前关于沉水植
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