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	两种甲藻对人工海水中胶体磷的利用初探; Preliminary study on utilization of colloidal phosphorus in artificial seawater by two dinoflagellates
	周理斌 ; 林良师 ; 柳欣 ; 蔡毅华 ; 黄邦钦
	2013-02-15
关键词	海洋生物学 胶体磷 东海原甲藻 链状亚历山大藻 碱性磷酸酶 marine biology colloidal phosphorus Prorocentrum donghaiense Alexandrium catenlla alkaline phosphatase
英文摘要	采用批次培养方法,研究了东海原甲藻(PrOrOCEnTruM dOngHAIEnSE)和链状亚历山大藻(AlEXAn-drIuM CATEnllA)对胶体磷的生物可利用性,并初步探讨了甲藻利用胶体磷的机制问题.结果表明东海原甲藻和链状亚历山大藻均能利用胶体磷生长繁殖.东海原甲藻在接种11 d后细胞密度在无机磷和胶体磷培养基中分别为10.53x107和3.43x107个/dM3.链状亚历山大藻在接种11 d后细胞密度在无机磷和胶体磷培养基中分别为39.0x105和28.3x105个/dM3.通过对比细胞密度,胶体磷对东海原甲藻生长的促进作用要低于无机磷的作用;胶体磷对链状亚历山大藻生长的促进作用与无机磷的作用相当.东海原甲藻和链状亚历山大藻在胶体磷源下碱性磷酸酶活性迅速升高,前期均显著高于各自无机磷组的碱性磷酸酶活性,碱性磷酸酶活力最高值分别为0.29和0.30μMOl/(dM3.H).初步结果表明,两种甲藻均能通过碱性磷酸酶的降解来利用胶体磷.; Based on batch culture,the bioavailability of colloidal phosphorus(CP) for Prorocentrum donghaiense and Alexandrium catenlla was studied and the mechanism of dinoflagellate utilizing CP was preliminary discussed.The results showed that both species could utilize colloidal phosphorus for growth.For P.donghaiense,after 11 d,the cell densities of K2HPO4 and CP treatment were 10.53 × 107 and 3.43 × 107cells/dm3,respectively.For A.catenlla,after 11 days,the cell densities of K2HPO4 and CP treatment were 39.0 × 105 and 28.3 × 105 cells/dm3,respectively.The growth rate of P.donghaiense in CP was significantly lower than that in K2HPO4;while there is no significant difference between the effects of K2HPO4 and CP for A.catenlla's growth.In CP treatment,the concentrations of alkaline phosphatase activity of P.donghaiense and A.catenlla raised rapidly and got the highest values of 0.29 and 0.30 μmol/(dm3·h),respectively,both significantly higher than those in K2HPO4 treatment during early stage.Preliminary data showed that these 2 dinoflagellates could utilized CP via the induction of alkaline phosphatase.; 国家973计划资助项目(2011CB403603); 国家自然科学基金资助项目(41176112;40906040); 福建省自然科学基金资助项目(2011J01277); 国家海洋局海洋生态系统与生物地球化学重点实验室开放基金资助项目(LMEB201103)
语种	zh_CN
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/104606]
专题	海洋环境－已发表论文
推荐引用方式 GB/T 7714	周理斌,林良师,柳欣,等. 两种甲藻对人工海水中胶体磷的利用初探, Preliminary study on utilization of colloidal phosphorus in artificial seawater by two dinoflagellates[J],2013.
APA	周理斌,林良师,柳欣,蔡毅华,&黄邦钦.(2013).两种甲藻对人工海水中胶体磷的利用初探..
MLA	周理斌,et al."两种甲藻对人工海水中胶体磷的利用初探".(2013).

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