二溴联苯醚对纤细裸藻的生态遗传毒性效应.pdfVIP

中国环境科学2010，30(6)：833～838 ChinaEnvironmentalScience 二溴联苯醚对纤细裸藻的生态遗传毒性效应 张 琼，伍 琴，高香玉，孔志明，李 梅’(南京大学环境学院，污染控制与资源化研究国家重点实验室，江苏南 京210093) 的生态遗传毒性效应．结果表明，低浓度BDE-15(3x10 细裸藻细胞DNA损伤程度随BDE—15浓度增加而加重，表明岛浓度BDE一15具有潜在致突变性． 关键词：4,4’_二溴联苯醚(BDE一15)；纤细裸藻；毒性效应：彗星实验 中图分类号：X503 文献标识码：A 文章编号：1000-6923(2010)06—0833—06 effectsofBDE-15onthe gracilis．ZHANGQin,GAO Ecogenotoxicological MicroalgaEuglena Qiong，WU KONG ofPollutionControlandResource of Zhi-ming，LIMei’(StateKeyLaboratory Reuse，School Environmental Nanjing 210093，China)．ChinaScience，2010，30(6)：833—838 University,Nanjing Abstract：The of of potentialecogenotoxicities4，4’-dibromodiphenylether(BDE-l5)，onepolybrominateddiphenyl itseffectson activitiesand ethers(PBDEs)wereinvestigatedbydetecting growth，pigmentcontents，antioxidantenzyme DNA in lower showednonotableeffect damagemicroalgaeEuglenagracilis．Atconcentrations(3x10一rag／L)，BDE一15 onthe at wasrestrainedto with growthofE．gracilis，whilehigherconcentration(3mg／L)，thegrowth 69．70％compared the thecontentof contents control，meanwhilephotosyntheticpigments protein decreasedwiththeincreaseofBDE一15concentration．Inaddition．thereWasanobviousdecreaseanddose—effect inSOD withtheincreaseofBDE-15concentration．At relationshipactivity hiigher activity increased withthecontr01．whichindicatedthatBDE-15couldinducetheactivitiesof by93．45％compared inE ofDNA observedfromthecometincreasedwithBDE-l5 enzymes gracilis．Thedegree damage assay