Unraveling the aroma-producing mechanism of the xerophilic fungus Xerochrysium coryli via integrated transcriptomic and volatile metabolomic analysis.

Authors

Zengye Yang, Weili Yang, Zhengchuan He, Jin Zhou, Chongde Wu, Yizhi Tang, Ruina Zhang, Jiayi Li, Yuhang Zou, Mingyue Zhang, Yanqing Qin, Yao Jin

Published in

Fungal biology. Volume 130. Issue 7. Pages 101843. Epub Aug 20, 2026.

Abstract

To investigate the aroma-producing mechanism of the tobacco-derived fungus Xerochrysium coryli, this study employed an integrated approach combining volatile metabolomics and transcriptomics. A total of 61 volatile metabolites were identified, and 17,269 genes were annotated. By integrating metabolite dynamics, differential gene expression, and pathway enrichment, we constructed a "gene-metabolite-pathway" association network. Significantly associated aroma-producing pathways included: aromatic amino acid conversion (associated with aromatic compounds such as phenylacetaldehyde and 2-phenylethanol), branched-chain amino acid degradation (related to the formation of higher alcohols such as isoamyl alcohol), lipid metabolism and its oxidative derivatives (potentially contributing aliphatic aldehydes/ketones/alcohols), and pathways related to terpenoid backbone biosynthesis. Collectively, these findings provide the first foundational insights into the molecular basis of aroma compound production in X. coryli.

PMID:
42875118
Bibliographic data and abstract were imported from PubMed on 15 Oct 2026.

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