A dietary polyunsaturated fatty acid improves consumer performance during challenge with an opportunistic bacterial pathogen.
A dietary polyunsaturated fatty acid improves consumer performance during challenge with an opportunistic bacterial pathogen.
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膳食多不饱和脂肪酸可提高消费者在机会性细菌病原体挑战期间的表现
DOI：
10.1111/1574-6941.12407
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发表时间：
2014
影响因子：
4.2
通讯作者：
Martin-Creuzburg
中科院分区：
文献类型：
--
作者：
Schlotz;Pester;Freese;Martin-Creuzburg
多不饱和脂肪酸(PUFAs)和/或甾醇的饮食不足会严重限制无脊椎动物消费者的生长和生殖。单一营养素可能被分配给不同的生理过程，例如支持防御机制；因此，健康和病原体挑战的消费者的脂肪需求可能不同。在口服暴露实验中，我们探讨了饲料中多不饱和脂肪酸和胆固醇对水生关键食草动物大型水生动物(Daphnia Magna)暴露于条件致病菌(Pseudomonassp.)的生长、繁殖和存活的影响。我们发现健康的和病原体挑战的D。它们的食物来源的生化成分对它们的影响很大，尽管差异很大。在缺乏C20多不饱和脂肪酸(PUFA)的饲料中添加花生四烯酸(ARA)可提高病原菌挑战D的存活率和繁殖力。麦格纳。我们认为，在病原体攻击期间食用富含ARA的饮食的观察到的好处部分是通过ARA衍生的二十烷基类化合物来传递的。这项研究是第一次考虑饮食中多不饱和脂肪酸在改变病原体挑战的无脊椎动物宿主的健康参数方面的重要性。我们的结果表明，饲料中多不饱和脂肪酸的供应应受到宿主-微生物相互作用和无脊椎动物疾病模型的更多关注，以更好地了解和预测自然种群中的疾病动态。水生食草动物(Daphnia Magna)口腔感染条件细菌病原体的结果受宿主营养的影响，这种影响部分是由饮食中的多不饱和脂肪酸介导的。
A dietary deficiency in polyunsaturated fatty acids (PUFAs) and/or sterols can severely constrain growth and reproduction of invertebrate consumers. Single nutrients are potentially assigned to different physiological processes, for example to support defence mechanisms; therefore, lipid requirements of healthy and pathogen-challenged consumers might differ. In an oral exposure experiment, we explored the effects of dietary PUFAs and cholesterol on growth, reproduction and survival of an aquatic key herbivore (Daphnia magna) exposed to an opportunistic pathogen (Pseudomonassp.). We show that healthy and pathogen-challengedD. magnaare strongly albeit differentially affected by the biochemical composition of their food sources. Supplementation of a C20 PUFA-deficient diet with arachidonic acid (ARA) resulted in increased survival and reproduction of pathogen-challengedD. magna. We propose that the observed benefit of consuming an ARA-rich diet during pathogen challenge is conveyed partially via ARA-derived eicosanoids. This study is one of the first to consider the importance of dietary PUFAs in modifying fitness parameters of pathogen-challenged invertebrate hosts. Our results suggest that dietary PUFA supply should receive increased attention in host–microorganisms interactions and invertebrate disease models to better understand and predict disease dynamics in natural populations.The outcome of an oral infection of an aquatic herbivore (Daphnia magna) with an opportunistic bacterial pathogen is affected by host nutrition and this effect is partially mediated by a dietary polyunsaturated fatty acid.The outcome of an oral infection of an aquatic herbivore (Daphnia magna) with an opportunistic bacterial pathogen is affected by host nutrition and this effect is partially mediated by a dietary polyunsaturated fatty acid.
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影响圆柱鱼腥藻排泄的异丙叉丙酮、二甲基烯丙醇和其他挥发性化合物形成的环境因素
影响因子：
1.5
作者：
F. Jüttner;J. Leonhardt;S. Möhren
通讯作者：
S. Möhren
DOI：
10.1098/rspb.2008.1540
发表时间：
2009-05-22
影响因子：
4.7
作者：
Martin-Creuzburg, Dominik;Sperfeld, Erik;Wacker, Alexander
通讯作者：
Wacker, Alexander
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
膳食脂质质量影响淡水主要食草动物的温度介导的反应规范
影响因子：
2.7
作者：
D. Martin‐Creuzburg;A. Wacker;Christine Ziese;M. Kainz
通讯作者：
M. Kainz
影响因子：
--
作者：
Schlotz N;Ebert D;Martin-Creuzburg D
通讯作者：
Martin-Creuzburg D