过氧化氢对铜绿微囊藻的损伤效应研究
- 海之魂
-
1 次阅读
-
0 次下载
-
2020-03-04 09:27:09
文档简介:
第35卷第4期2015年4月环境科学学报ActaScientiaeCircumstantiaeVol.35,No.4Apr.,2015基金项目:四川省基本科研业务费项目(No.021210)SupportedbytheFundamentalResearchFundsforSichuanProvince(No.021210)作者简介:李娟(1989—),女,E-mail:lijuan8905@163.com;*通讯作者(责任作者),E-mail:wwyyjj1972@163.comBiography:LIJuan(1989—),female,E-mail:lijuan8905@163.com;*Correspondingauthor,E-mail:wwyyjj1972@163.comDOI:10.13671/j.hjkxxb.2014.0857李娟,王应军,高鹏.2015.过氧化氢对铜绿微囊藻的损伤效应研究[J].环境科学学报,35(4):1183-1189LiJ,WangYJ,GaoP.2015.DamagingeffectsofhydrogenperoxideonMicrocystisaeruginosa[J].ActaScientiaeCircumstantiae,35(4):1183-1189过氧化氢对铜绿微囊藻的损伤效应研究李娟1,王应军1,*,高鹏21.四川农业大学资源环境学院,成都6111302.四川省水利科学研究院,成都610072收稿日期:2014-06-10修回日期:2014-08-03录用日期:2014-08-03摘要:采用室内培养的方法研究了不同浓度H2O2对铜绿微囊藻(Microcysticaeruginosa)藻细胞的损伤效应.结果表明,H2O2浓度越大,对藻细胞的毒害作用越大.24h之后,铜绿微囊藻藻细胞数、叶绿素a、类胡萝卜素和蛋白质含量及总抗氧化能力(T-AOC)都快速下降,而MDA含量显著增加,同时培养基中的H2O2含量也迅速降低;随着处理时间的增加,毒性效应逐渐增强;72h之后,藻细胞各指标值都降得很低,MDA含量也增加到最大,培养基中H2O2也逐渐被消耗和分解,藻细胞的损伤效应也达到最大.其中,H2O2浓度为50mg·L-1时,能够有效的去除藻细胞,并且对藻细胞的生理指标及抗氧化能力都有很强的损伤效应.关键词:H2O2;铜绿微囊藻;损伤效应文章编号:0253-2468(2015)04-1183-07中图分类号:X172文献标识码:ADamagingeffectsofhydrogenperoxideonMicrocystisaeruginosaLIJuan1,WANGYingjun1,*,GAOPeng21.CollegeofResourcesandEnvironment,SichuanAgriculturalUniversity,Chengdu6111302.SichuanProvincialWaterConservancyResearchInstitute,Chengdu610072Received10June2014;receivedinrevisedform3August2014;accepted3August2014Abstract:Thisstudyusedindoorculturemethodtoinvestigatethedamagingeffectofhydrogenperoxide(H2O2)onMicrocystisaeruginosa.ResultsshowedthatthetoxiceffectincreasedwithincreasingH2O2concentrations.Thenumberofalgalcells,thecontentofchlorophylla,carotenoidandprotein,andT-AOCofMicrocystisaeruginosareducedrapidlyafter24hours,whilethecontentofMDAincreasedsignificantly.Meanwhile,theH2O2contentinculturemediumalsoreducedrapidly.Toxiceffectalsoincreasedgraduallywiththeprocessingtime.Thevalueofeachindexreducedtoaverylowlevelafter72hours,thecontentofMDAincreasedtothemaximum,andtheH2O2wasconsumedanddecomposedgradually,implyingthatamaximumdamageeffectofal
评论
发表评论