Bacterial signal C10-HSL stimulates spore germination of Galactomyces geotrichum by transboundary interaction  

作　　者：Xin Lu Yue Wang Zhixuan Feng Liang Fu Dandan Zhou 

机构地区：[1]Jilin Engineering Lab for Water Pollution Control and Resources Recovery,Northeast Normal University,Changchun 130117,China [2]Quality,Safety and Environmental Protection Department,Shanxi Road&Bridge Construction Group Co.Ltd.,Taiyuan 030000,China

出　　处：《Chinese Chemical Letters》2023年第4期374-377,共4页中国化学快报（英文版）

基　　金：the National Natural Science Foundation of China (Nos. 52070036, U20A20322);the Fundamental Research Funds for the Central Universities (No. 2412018ZD042) for their financial support。

摘　　要：The coevolution and coexistence of bacterial–fungal consortium have been widely reported in various natural ecosystems. The transboundary communication mediated by bacterial acyl–homoserine lactone signals probably is the driving force of fungal spore germination. This study aimed to report a functional bacterial signal molecule, C10-acyl homoserine lactone, which could be sensed by Galactomyces geotrichum. The spore germination rates of G. geotrichum increased by 22%. Meanwhile, carbohydrate production improved by 1.0-to 2.5-fold. G. geotrichum signaled to C10-HSL through receptor gene Rho1and made a response in cell wall assembly and carbohydrate biosynthesis by the upregulated expression(above 1-fold) of functional genes, such as Smi1, Utr2, and Chs2. It contributed to spore germination and morphology transformation together. This study provides a novel perspective for understating the transboundary cooperation between fungi and bacteria by cell-to-cell communication.

关 键 词：Cell wall C10-HSL Galactomyces geotrichum Spore germination Transboundary communication 

分 类 号：Q935[生物学—微生物学]