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Issue: Vol. 752 No. 2: 22 Apr. 2026
Type: Article
Published: 2026-04-22
DOI: 10.11646/phytotaxa.752.2.3
Page range: 121-136
Abstract views: 0
PDF downloaded: 0

Exploring a new habitat for Distoseptispora (Distoseptisporaceae, Distoseptisporales) and introducing D. mangrovei sp. nov. from a mangrove wetland in Guangdong Province, China

Innovative Institute for Plant Health / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, China
Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand; School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
Innovative Institute for Plant Health / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, China
Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand; Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11495, Saudi Arabia; Yunnan Key Laboratory of Fungal Diversity and Green Development, Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
Innovative Institute for Plant Health / Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, China
mangrove habitat multi-locus phylogeny Sonneratia apetala taxonomy Fungi

Abstract

Species within Distoseptispora have demonstrated an exceptional rate of expansion with an ongoing investigation of lignicolous microfungi from freshwater and terrestrial habitats. In just one year (2025), a remarkable 36 species were described. However, despite the substantial increase in documented species, our understanding towards the specific/generic delimitation of Distoseptispora remains insufficient. In this study, we explored a mangrove habitat, a special aquatic habitat under salt stress, for Distoseptispora to facilitate a comprehensive understanding of this group. The specimen was collected from an estuarine mangrove wetland at the Hanjiang River in Guangdong Province, China. Multi-locus phylogenetic analysis of a concatenated LSU, ITS, tef1-α, and rpb2 dataset and morphological study identified our new collection as a novel species, Distoseptispora mangrovei. Distoseptispora mangrovei is unique by its short, solitary conidiophores and variable conidia, which are solitary or occasionally catenate, mostly elongated, obclavate, not or slightly constricted at the septa, but sometimes deeply constricted at some septa. Percurrent proliferation from cut ends of conidia is also occasionally observed.

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How to Cite

Li, H., Shu, Y., Doilom, M., Hyde, K.D. & Dong, W. (2026) Exploring a new habitat for Distoseptispora (Distoseptisporaceae, Distoseptisporales) and introducing D. mangrovei sp. nov. from a mangrove wetland in Guangdong Province, China. Phytotaxa 752 (2): 121–136. https://doi.org/10.11646/phytotaxa.752.2.3