Taxonomic insights and preliminary enzyme assays of Rhytidhysteron species (Hysteriales, Hysteriaceae) from litter layer in the Yuan Jiang savanna, China.

IF 5.4 2区生物学 Q2 MICROBIOLOGY

BMC Microbiology Pub Date : 2026-09-16 DOI:10.1186/s12866-026-05631-2

Hai-Xia Wu, Jin-Chen Li, Kai-Yang Niu, Wei-Feng Ding, Nalin N Wijayawardene, Handong Wen

{"title":"Taxonomic insights and preliminary enzyme assays of Rhytidhysteron species (Hysteriales, Hysteriaceae) from litter layer in the Yuan Jiang savanna, China.","authors":"Hai-Xia Wu, Jin-Chen Li, Kai-Yang Niu, Wei-Feng Ding, Nalin N Wijayawardene, Handong Wen","doi":"10.1186/s12866-026-05631-2","DOIUrl":null,"url":null,"abstract":"<p><p>Six terrestrial hysteriaceous fungi were collected from litter in dry-hot valleys, China, all exhibiting the typical morphological characteristics of the genus Rhytidhysteron. Detailed morphological examimation combined with RAxML phylogenetic analysis of combined LSU, SSU, ITS, and tef-1α loci revealed that the specimens represent one new species Rhytidhysteron savanniense sp. nov. and two new geographical records R. hongheense and R. tectonae. Comprehensive descriptions, illustrations, and a phylogenetic tree are provided to clarify the taxonomic placement of these taxa. As a preliminary observation, lignocellulose-related enzymes screening was conducted to explore potential ecological roles of Rhytidhysteron. The results indicated variation in cellulase production capacity among species, with Rhytidhysteron savanniense exhibiting the highest cellulase activity under laboratory conditions. These findings highlight the taxonomic diversity of Rhytidhysteron in dry-hot valley ecosystems and suggest possible functional capapcites that warrant further ecological investigation.</p>","PeriodicalId":9233,"journal":{"name":"BMC Microbiology","volume":"26 1","pages":""},"PeriodicalIF":5.4000,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13647791/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"BMC Microbiology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1186/s12866-026-05631-2","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MICROBIOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

Six terrestrial hysteriaceous fungi were collected from litter in dry-hot valleys, China, all exhibiting the typical morphological characteristics of the genus Rhytidhysteron. Detailed morphological examimation combined with RAxML phylogenetic analysis of combined LSU, SSU, ITS, and tef-1α loci revealed that the specimens represent one new species Rhytidhysteron savanniense sp. nov. and two new geographical records R. hongheense and R. tectonae. Comprehensive descriptions, illustrations, and a phylogenetic tree are provided to clarify the taxonomic placement of these taxa. As a preliminary observation, lignocellulose-related enzymes screening was conducted to explore potential ecological roles of Rhytidhysteron. The results indicated variation in cellulase production capacity among species, with Rhytidhysteron savanniense exhibiting the highest cellulase activity under laboratory conditions. These findings highlight the taxonomic diversity of Rhytidhysteron in dry-hot valley ecosystems and suggest possible functional capapcites that warrant further ecological investigation.

查看原文本刊更多论文

元江稀树草原凋落物层节肢草属（节肢草属，节肢草科）的分类及酶学初步分析。

从干热河谷凋落物中采集到6种陆生歇斯底里菌，均表现出典型的歇斯底里菌属形态特征。结合LSU、SSU、ITS和tef-1α基因座的RAxML系统发育分析表明，这些标本代表了1个新种Rhytidhysteron savanniense sp. 11和2个新地理记录R. hongheense和R. tectonae。提供了全面的描述，插图和系统发育树来澄清这些分类群的分类位置。作为初步观察，我们进行了木质纤维素相关酶的筛选，以探索Rhytidhysteron潜在的生态作用。结果表明，不同物种之间的纤维素酶生产能力存在差异，在实验室条件下，沙鼠柳草的纤维素酶活性最高。这些发现突出了干热河谷生态系统中潮纹草的分类多样性，并提示了可能的功能能力，值得进一步的生态学研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

BMC Microbiology 生物-微生物学

CiteScore

7.20

自引率

0.00%

发文量

280

审稿时长

3 months

期刊介绍： BMC Microbiology is an open access, peer-reviewed journal that considers articles on analytical and functional studies of prokaryotic and eukaryotic microorganisms, viruses and small parasites, as well as host and therapeutic responses to them and their interaction with the environment.