Prey-dependent retention of dimethylsulfoniopropionate (DMSP) by mixotrophic dinoflagellates.
Prey-dependent retention of dimethylsulfoniopropionate (DMSP) by mixotrophic dinoflagellates.
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DOI：
10.1111/j.1462-2920.2011.02600.x
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发表时间：
2012-03
影响因子：
5.1
通讯作者：
Yoo YD
中科院分区：
文献类型：
--
作者：
Lee H;Park KT;Lee K;Jeong HJ;Yoo YD
我们研究了二甲基磺基丙酸酯（DMSP）的保留在光养甲藻产生的兼养通过估计的细胞内容的DMSP在Karlodinium veneficum（兼养生长）喂养7-10天无论是DMSP丰富Amphidinium carterae（仅光养生长）或DMSP贫乏Teleaulax sp.（仅光养生长）。在K。veneficum取食DMSP缺乏的猎物后，DMSP的细胞含量几乎没有变化，而K. veneficum细胞中DMSP的细胞含量在取食的速率下几乎没有变化。veneficum喂养的DMSP丰富的猎物增加了多达21倍的细胞浓度完全来自光养生长。在这两种情况下，显著分数（10-32%在前者的情况下，在后者的55-65%）的总DMSP摄入K。veneficum转化为二甲硫醚和其他生化化合物。结果可能表明，DMSP含量的猎物物种影响的时间变化的细胞DMSP含量的混合营养甲藻，和混合营养甲藻产生DMS通过放牧DMSP丰富的猎物。应进行进一步的研究，以检查我们的发现在其他混合营养甲藻喂养不同的猎物物种的普遍性。
We investigated the retention of dimethylsulfoniopropionate (DMSP) in phototrophic dinoflagellates arising from mixotrophy by estimating the cellular content of DMSP in Karlodinium veneficum (mixotrophic growth) fed for 7–10 days on either DMSP-rich Amphidinium carterae (phototrophic growth only) or DMSP-poor Teleaulax sp. (phototrophic growth only). In K. veneficum fed on DMSP-poor prey, the cellular content of DMSP remained almost unchanged regardless of the rate of feeding, whereas the cellular content of DMSP in cells of K. veneficum fed on DMSP-rich prey increased by as much as 21 times the cellular concentration derived exclusively from phototrophic growth. In both cases, significant fractions (10–32% in the former case and 55–65% in the latter) of the total DMSP ingested by K. veneficum were transformed into dimethylsulfide and other biochemical compounds. The results may indicate that the DMSP content of prey species affects temporal variations in the cellular DMSP content of mixotrophic dinoflagellates, and that mixotrophic dinoflagellates produce DMS through grazing on DMSP-rich preys. Additional studies should be performed to examine the universality of our finding in other mixotrophic dinoflagellates feeding on diverse prey species.
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DOI：
10.1016/s0967-0645(02)00061-9
发表时间：
2002-01-01
影响因子：
3
作者：
Burkill, PH;Archer, SD;Zubkov, MV
通讯作者：
Zubkov, MV
影响因子：
2.8
作者：
GUILLARD, RR;RYTHER, JH
通讯作者：
RYTHER, JH
影响因子：
2.9
作者：
Li, AS;Stoecker, DK;Coats, DW
通讯作者：
Coats, DW
影响因子：
2.7
作者：
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通讯作者：
Slezak, D
影响因子：
4.5
作者：
Malin, G;Wilson, WH;Mann, NH
通讯作者：
Mann, NH