k2011-盐酸金霉素及其光降解产物对淡水藻生长的影响.pdfVIP

,JournalofAnhuiAgr.iSci.2011,39(7):4155-4157,4161李占东马君叶

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王梦禅,钟文英,陈建秋(,210009)

[目的]研究四环素类抗生素进入水环境后的生态风险及影响藻类生的环境因子[方法]研究不同浓度盐酸金霉素及经不同

时间紫外光降解的盐酸金霉素对2种藻(铜绿微囊藻和斜生栅藻)生物量和叶绿素a含量的影响[结果]除0.5mg/L盐酸金霉素对铜

绿微囊藻有促进作用外,其他浓度对2种藻都有一定程度的抑制作用,且随浓度的增加抑制作用加强,10mg/L的盐酸金霉素也不能完

全抑制2种藻的生;经紫外光降解的盐酸金霉素对2种藻的作用不同,铜绿微囊藻生物量和叶绿素a含量大小依次是:经紫外光降解

2h1h4h0h8h12h24h,斜生栅藻生物量和叶绿素a含量则是对照组最大,试验组随降解时间的延而降低[结论]盐

酸金霉素对淡水藻类的影响与其浓度及藻种有关,经紫外光降解的盐酸金霉素对淡水藻类的影响则与降解时间及藻种有关

铜绿微囊藻;斜生栅藻;盐酸金霉素;紫外光降解;叶绿素a含量

X143A0517-6611(2011)07-04155-03

EffectsofChlortetracyclineHydrochlorideanditsUVDegradationProductsonGrowthofFreshwaterAlgae

WANGMeng-chanetal(DeartmentofAnalyticalChemistry,ChinaPharmaceuticalUniversity,Nanjing,Jiangsu210009)

Astracts[Objective]Theamiwastostudytheecologicalriskwhentetracyclinesantibioticsenteredthewaterenvironmentandanotheren-

vironmentalfactorwhichinfluencedthegrowthofalgae.[Method]EffectsofchlortetracyclinehydrochlorideandUVlightdegradationofchlor-

tetracyclinehydrochlorideonalgagrowthandchlorohyllacontentwereinvestigatedbyMicrocystisaeruginosaandScenedesmusobliquus.[Re-

sult]MSChlortetracyclinehydrochlorideinhibitedthegrowthofthewtoalgaeexcetthat0.5mg/Lofchlortetracyclinehydrochlorideromo-

tedthegrowthofMicrocystisaeruginosa.Withtheincreaseofconcentrationofchlortetracyclinehydrochloride,theinhibitionstrengthenedbut

10mg/Lofchlortetracyclinehydrochloridecouldntinhibitthegrowthofthewtoalgaecomletely.Chlortetracyclinehydrochloridedegraded

byUVlighthaddifferenteffectsongrowthofthetwoalgae.ThebiomassandchlorohyllacontentofMicrocystisaeruginosawereasfollows:

chlortetracyclinehydrochloridedegradedbyUVlightfor2h1h4h0h8h12h24h.