The Promoting Mechanism of the Sterile Fermentation Filtrate of Serratia odorifera on Hypsizygus marmoreus by Means of Metabolomics Analysis

Author:

Cao Jixuan1,Xie Jiacheng1,Yu Mingming1,Xu Tao1,Zhang Huangru1,Chen Liding1,Sun Shujing12ORCID

Affiliation:

1. College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China

2. Gutian Edible Fungi Research Institute, Fujian Agriculture and Forestry University, Ningde 352200, China

Abstract

Hypsizygus marmoreus has become one of the most popular edible mushrooms due to its high nutritional and economic value. Previous researchers found that Serratia odorifera could promote the growth of H. marmoreus by producing and secreting some of its inducers. However, the specific mechanism of action was still unclear. In this study, we found that the exogenous addition of sterile fermentation filtrate (HZSO-1), quorum sensing (QS) signaling molecules, 3-oxo-C6-HSL, cyclo(Pro-Leu), and cyclo(Tyr-Leu) could significantly promote the growth of H. marmoreus, increase the number of clamp junctions, and the diameter of mycelium (p < 0.05). In addition, non-targeted metabolomic analysis revealed that 706 metabolites were detected in the treated group. Of these, 307 metabolites were significantly different (p < 0.05). Compared with the control, 54 and 86 metabolites were significantly increased and decreased in the HZSO-1 group, respectively (p < 0.05). We speculate that the sterile fermentation filtrate of S. odorifera could mediate the carbohydrate and amino acid metabolism of H. marmoreus by influencing the pentose phosphate pathway (PPP) to increase the energy supply for the growth and development of the mycelium. The above results will further reveal the growth-promoting mechanism of S. odorifera on H. marmoreus.

Funder

Foreign Cooperation Program of Fujian Province

Project of Modern Agricultural Industrial Technology System of Edible Fungi in Fujian Province

Innovation Fund of Fujian Agriculture and Forestry University

Publisher

MDPI AG

Subject

Molecular Biology,Biochemistry

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