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首页> 外文期刊>Scientific reports. >Altered Carbohydrates Allocation by Associated Bacteria-fungi Interactions in a Bark Beetle-microbe Symbiosis
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Altered Carbohydrates Allocation by Associated Bacteria-fungi Interactions in a Bark Beetle-microbe Symbiosis

机译：通过相关的细菌 - 真菌相互作用改变了碳水化合物分配在树皮甲虫微生物 - 微生物共生中

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Insect-microbe interaction is a key area of research in multiplayer symbiosis, yet little is known about the role of microbe-microbe interactions in insect-microbe symbioses. The red turpentine beetle (RTB) has destroyed millions of healthy pines in China and forms context-dependent relationships with associated fungi. The adult-associated fungus Leptographium procerum have played key roles in RTB colonization. However, common fungal associates (L. procerum and Ophiostoma minus) with RTB larvae compete for carbohydrates. Here, we report that dominant bacteria associated with RTB larvae buffer the competition by inhibiting the growth and D-glucose consumption of O. minus. However, they didn't inhibit the growth of L. procerum and forced this fungus to consume D-pinitol before consuming D-glucose, even though D-glucose was available and a better carbon source not only for L. procerum but also for RTB larvae and associated bacteria. This suggests the most frequently isolated bacteria associated with RTB larvae could affect fungal growth and the sequence of carbohydrate consumption. Thus, this regulates carbohydrate allocation in the RTB larva-microbe community, which may in turn benefit RTB larvae development. We also discuss the mechanism of carbohydrate allocation in the RTB larva-microbe community, and its potential contribution to the maintenance of a symbiotic community.
机译：昆虫 - 微生物相互作用是多人共生中的一个关键研究领域，但对于微生物微生物 - 微生物共混物中的微生物微生物相互作用的作用很少。红松节油甲虫（RTB）在中国摧毁了数百万健康的松树，形成了与相关真菌的背景相关的关系。成人相关的真菌Leptogramium Procerum在RTB定植中发挥了关键作用。然而，使用RTB幼虫（L. procerum和Ophiostoma减去）常见的真菌助理（L. procerum和Ophiostoma减去）竞争碳水化合物。在这里，我们通过抑制O.减去的生长和D-葡萄糖消耗来报告与RTB幼虫缓冲竞争相关的显性细菌。然而，它们并没有抑制L. procerum的生长，并且迫使这种真菌在消耗D-葡萄糖之前消耗D-吡啶醇，即使D-葡萄糖可用，也不仅适用于L. procerum，还用于RTB的碳源幼虫和相关细菌。这表明最常见的与RTB幼虫相关的细菌可能会影响真菌生长和碳水化合物消费序列。因此，这调节RTB幼虫微生物群落中的碳水化合物分配，其可能反过来有益于RTB幼虫发育。我们还讨论了RTB幼虫微生物群落中碳水化合物分配的机制，以及对体共生群落维持的潜在贡献。

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