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1、热带海洋学报JOURNALOFTROPICALOCEANOGRAPHY2010年第29卷第3期：65−70海洋生物学http://jto.scsio.ac.cn;http://www.jto.ac.cnNaHSO3对盐生杜氏藻生长和光合色素含量的影响1,211程建峰,胡芬红,沈允钢(1.中国科学院上海生命科学研究院植物生理生态研究所,上海200032;2.江西农业大学农学院,江西南昌330045)摘要:为优化盐生杜氏藻营养盐配方、降低养殖成本、提高生物量及色素积累,研究了不同浓度的安全环保的植−1物循环光合磷酸化促进剂——NaHSO3(≤0.40m
2、M·L)溶液对盐生杜氏藻生长和光合色素含量的影响。结果表明,NaHSO3可显著促进盐生杜氏藻生长,提高叶绿素a(Chla)和b(Ch1b)含量、叶绿素总量(Chl)、类胡萝卜素含量(Car)−1−1和Chl/Car;促进效应随浓度增加表现为先升后降,低浓度(<0.10mM·L)效应较好,以0.07mM·L为最佳。−1NaHSO3提高Chlb的效应大于Chla,降低Chla/Chlb比值,随浓度增加表现为先降后升,以0.07mM·L降低最大。本试验条件下,盐生杜氏藻生物量与光合色素含量间及各光合色素含量间呈显著或极显著相关,与生物量(Y,−1−12g
3、·L)相关最大的是Chlb(XChlb,μg·ml),符合Y=0.284XChlb－0.883(R=0.994**)(**表示Y与X之间在0.01水平−12上极显著相关，下同);其次为Chl(XChl,μg·ml),Y=0.100XChl－2.022(R=0.993**),为生长动态的及时掌握提供了有效的间接衡量指标。关键词:盐生杜氏藻Dunaliellasalina;NaHSO3;生长;生物量;光合色素中图分类号:Q945.11文献标识码:A文章编号:1009-5470(2010)03-0065-06EffectsofNaHSO3onthegro
4、wthandcontentsofphotosyntheticpigmentsinDu-naliellasalina1,211CHENGJian-feng,HUFen-hong,SHENYun-gang(1.InstituteofPlantPhysiologyandEcology,ShanghaiInstitutesforBiologicalSciences,ChinaAcademyofSciences,Shanghai200032,China;2.CollegeofAgronomy,JiangxiAgriculturalUniversity,Nan
5、chang330045,China)Abstract:Bisulfite(NaHSO3)isasubstancetoaccelerateplantcyclicphotophosphorylationthatcanbeusedsafelyandenvi-ronmentallyfriendly.Inordertooptimizethenutrientsformula,decreasetheproductioncostandimprovethebiomassand−1pigmentaccumulationofDunaliellasalina,theaut
6、horsinvestigatedtheeffectsofdifferentconcentrations(0.00−0.40mM·L)ofNaHSO3onthebiomassandphotosyntheticpigmentcontents.TheresultsshowedthatNaHSO3couldsignificantlyimprovethegrowth,contentsofchlorophyll(Chl)a,Chlb,Chl(a+b),carotenoid(Car)andratioofChltoCar.Theeffectsfirstlyin-−
7、1creasedandthendecreasedwiththeincreaseofconcentration.Acceleratingeffectsunderlowconcentrations(<0.10mM·L)−1werebetterthanthoseunderhighconcentrations(0.10−0.40mM·L),andthemaximumacceleratingeffectswerereachesat−10.07mM·L.NaHSO3couldincreaseChlbcontentmorethanChlacontent,whic
8、hcausedthereductionofChlacontentrela-tivetoChlbcontent;theeff
