Transcriptomic profiling revealed important roles of amino acid metabolism in fruiting body formation at different ripening times in Hypsizygus marmoreus

Frontiers in Microbiology

Microbiology

Yunfu Gu¹  Huijuan Zhang¹  Qiang Chen¹  Yakun Li¹  Lingzi Zhang¹  Quanju Xiang¹  Ke Zhao¹  Muhammad Arshad¹  Xiumei Yu¹  Menggen Ma¹  Maolan He² 

[1] College of Resources, Sichuan Agricultural University, Chengdu, Sichuan, China;Qinghai Spring Medicinal Resources Technology Co., Ltd., Chengdu, Sichuan, China;

关键词: differentially expressed genes;    transcriptomics;    amino acid metabolism;    enzymes;    lignocellulose;   

DOI  :  10.3389/fmicb.2023.1169881

 received in 2023-02-20, accepted in 2023-03-31,  发布年份 2023

来源: Frontiers

【 摘 要 】

IntroductionHypsizygus marmoreus is an industrial mushroom that is widely cultivated in East Asia. Its long postripening stage before fruiting severely limits its industrialized production.MethodsFive different mycelial ripening times (30, 50, 70, 90, and 100 d) were chosen and primordia (30P, 50P, 70P, 90P, and 110P) were collected for comparative transcriptomic analyses. The corresponding substrates (30F, 50F, 70F, 90F, and 110F) were used for nutrient content and enzyme activity determination.ResultsIn pairwise comparisons between 110P and other primordia, a total of 1,194, 977, 773, and 697 differentially expressed genes (DEGs) were identified in 30P_110P, 50P_110P, 70P_110P, and 90P_110P, respectively. Gene Ontology (GO) and Kyoto Encyclopedia of Genes Genomes (KEGG) functional enrichment analyses revealed that the DEGs were mainly associated with amino acid metabolism, and lipid and carbohydrate metabolism pathways. Tyrosine, tryptophan, phenylalanine and histidine metabolism were enriched in all groups. Among the main carbon nutrients, the contents of cellulose and hemicellulose were high, and the lignin content decreased with the extension of the ripening time. Laccase had the highest activity, and acid protease activity decreased with the extension of the ripening time.DiscussionThe highly enrichment for amino acid metabolic pathways in primordia reveals that these pathways are essential for fruiting body formation in H. marmoreus, and these results will provide a basis for the optimization of its cultivation.

【 授权许可】

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Copyright © 2023 Xiang, Arshad, Li, Zhang, Gu, Yu, Zhao, Ma, Zhang, He and Chen.