Gut bacteria are essential for development of an invasive bark beetle by regulating glucose transport
文献类型： 外文期刊
第一作者： Liu, Fanghua
作者： Liu, Fanghua;Yang, Yunwen;Kang, Zhiwei;Chen, Wei;Wang, Saige;Kang, Le;Sun, Jianghua;Ye, Fangyuan;Kou, Hongru;Kang, Le;Sun, Jianghua;Liu, Yang
作者机构：
关键词： red turpentine beetle; gut bacteria; development; D- glucose transport; hypoxia
期刊名称：PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA （ 影响因子：9.1； 五年影响因子：10.6 ）
ISSN： 0027-8424
年卷期： 2024 年 121 卷 33 期
页码：
收录情况： SCI
摘要： Insects and their gut bacteria form a tight and beneficial relationship, especially in utilization of host nutrients. The red turpentine beetle (RTB), a destructive and invasive pine pest, employs mutualistic microbes to facilitate its invasion success. However, the molecular mechanism underlying the utilization of nutrients remains unknown. In this study, we found that gut bacteria are crucial for the utilization of D- glucose, a main carbon source for RTB development. Downstream assays revealed that gut bacteria- induced gut hypoxia and the secretion of riboflavin are responsible for RTB development by regulating D- glucose transport via the activation of a hypoxia- induced transcription factor 1 (Hif-1 alpha). Further functional investigations confirmed that Hif-1 alpha mediates glucose transport by direct upregulation of two glucose transporters (ST10 and ST27), thereby promoting RTB development. Our findings reveal how gut bacteria regulate the development of RTB, and promote our understanding of the mutualistic relationship of animals and their gut bacteria.
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