Interactions with a Complex Microbiota Mediate a Trade-Off between the Host Development Rate and Heat Stress Resistance.
Interactions with a Complex Microbiota Mediate a Trade-Off between the Host Development Rate and Heat Stress Resistance.
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DOI：
10.3390/microorganisms8111781
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发表时间：
2020-11-13
期刊：
影响因子：
4.5
通讯作者：
Shapira M
中科院分区：
文献类型：
--
作者：
Slowinski S;Ramirez I;Narayan V;Somayaji M;Para M;Pi S;Jadeja N;Karimzadegan S;Pees B;Shapira M
动物和植物宿主微生物的不同社区，这些微生物群已被证明会影响宿主的生活史特征。关于宿主相关微生物群赋予宿主的益处已经说了很多。然而，生活史特征往往表现出彼此之间的权衡。饲养秀丽隐杆线虫在堆肥微宇宙模拟其自然环境，我们研究了复杂的微生物如何影响主机的生活史特征。我们发现，土壤微生物通常会增加主机的发展速度，但降低主机的耐热性，这表明与复杂的微生物的相互作用可能介导主机的发展和抗逆性之间的权衡。这些相互作用中的什么因素导致了这些效应尚不清楚，但活细菌与死细菌的实验表明，这种效应可能取决于细菌提供的信号。
Animals and plants host diverse communities of microorganisms, and these microbiotas have been shown to influence host life history traits. Much has been said about the benefits that host-associated microbiotas bestow on the host. However, life history traits often demonstrate tradeoffs among one another. Raising Caenorhabditis elegans nematodes in compost microcosms emulating their natural environment, we examined how complex microbiotas affect host life history traits. We show that soil microbes usually increase the host development rate but decrease host resistance to heat stress, suggesting that interactions with complex microbiotas may mediate a tradeoff between host development and stress resistance. What element in these interactions is responsible for these effects is yet unknown, but experiments with live versus dead bacteria suggest that such effects may depend on bacterially provided signals.
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