Differences in heat tolerance within a Daphnia magna population: the significance of body PUFA content
Differences in heat tolerance within a Daphnia magna population: the significance of body PUFA content
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大型溞种群内耐热性的差异:体内多不饱和脂肪酸含量的重要性
DOI:
10.1007/s10750-018-3769-7
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发表时间:
2019
期刊:
影响因子:
2.6
通讯作者:
von Elert
中科院分区:
文献类型:
--
作者:
Werner;von Elert
In this study, we use the model organismDaphnia magnato determine variation in heat tolerance within a natural population and relate this to variation in body fatty acid content and composition. As a proxy for heat tolerance we measured time to immobilization (Timm) for 25 clonal lineages isolated from a single lake. The clonal lineages were grown onChlamydomonas reinhardiiat 15°C. Upon deposition of the first clutch,Timmand body fatty acids were determined. We report significant differences ofTimmand of the content of PUFAs and of eicosapentaenoic acid (EPA) among theD. magnaclonal lineages.Timmwas negatively related to total PUFA-content, indicating that increased body PUFA-content may be detrimental for membrane properties at high temperatures. Juvenile somatic growth varied significantly among clonal lineages, and was not related to total body PUFA-content, hence body PUFA-content was no proxy for PUFA-limitation. No correlative evidence for an impact of body EPA-content onTimmor juvenile growth was obtained. We hypothesize that the observed intra-population variability of body PUFA-content might be related to potentially different amplitudes in diel vertical migration in response to fish. These different amplitudes would mean differences in the extent of diurnal temperature fluctuations among the clonal lineages.
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影响因子:
30.7
作者:
Lothar Schlüter;Kai T. Lohbeck;M. Gutowska;J. Gröger;U. Riebesell;T. Reusch
通讯作者:
Lothar Schlüter;Kai T. Lohbeck;M. Gutowska;J. Gröger;U. Riebesell;T. Reusch
DOI:
10.1016/j.cbpa.2012.05.004
发表时间:
2012-08
期刊:
Comparative biochemistry and physiology. Part A, Molecular & integrative physiology
影响因子:
--
作者:
Nina Schlotz;J. G. Sørensen;D. Martin‐Creuzburg
通讯作者:
Nina Schlotz;J. G. Sørensen;D. Martin‐Creuzburg
DOI:
--
发表时间:
1979
期刊:
影响因子:
--
作者:
T. Farkas
通讯作者:
T. Farkas
影响因子:
1.9
作者:
Patricia J. Williams;Kenneth B. Dick;L. Yampolsky
通讯作者:
L. Yampolsky
影响因子:
2.7
作者:
D. Martin‐Creuzburg;A. Wacker;Christine Ziese;M. Kainz
通讯作者:
M. Kainz