Taxonomic novelties of two Neosulcatispora species (Pleosporales, Phaeosphaeriaceae) associated with Agave vera-cruz plants in a dry-hot valley of Yunnan, China
4 affiliations
- 1Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences Kunming China https://ror.org/02e5hx313
- 2Centre for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China Centre for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences Kunming China https://ror.org/02e5hx313
- 3School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 611731, China School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China Chengdu China https://ror.org/04qr3zq92
- 4Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia Department of Botany and Microbiology, College of Science, King Saud University Riyadh Saudi Arabia https://ror.org/02f81g417
Abstract
Neosulcatispora is a poorly known coelomycetous genus of Phaeosphaeriaceae, previously represented by two species. During a survey of microfungi associated with dead leaves of Agave vera-cruz in the dry-hot valley of Honghe County, Yunnan Province, China, five isolates representing two unknown lineages were obtained. Morphology, culture characteristics and a multi-locus phylogenetic analysis of concatenated SSU, LSU, ITS, tef1-α and rpb2 sequence data support their recognition as two new species viz. Neosulcatispora agavicolasp. nov. and N. hongheensissp. nov. Neosulcatispora agavicola is characterized by relatively large, semi-immersed to erumpent conidiomata and golden-brown to dark brown, 1-septate, longitudinally striate conidia. Neosulcatispora hongheensis has smaller conidiomata and mature, 3–4-septate conidia. The new taxa form independent lineages within the clade containing the type species, N. agaves. In contrast, the ex-type strain of N. strelitziae is recovered elsewhere in Phaeosphaeriaceae in the present analysis, indicating that the generic placement of N. strelitziae requires reassessment using broader taxon and locus sampling. These findings increase the known diversity of Neosulcatispora sensu stricto and emphasize the dry-hot valleys of southwestern China as an understudied niche of undescribed plant-associated microfungi.
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BibTeX
@article{dissanayake2026taxonomic,
title = {{Taxonomic novelties of two Neosulcatispora species (Pleosporales, Phaeosphaeriaceae) associated with Agave vera-cruz plants in a dry-hot valley of Yunnan, China}},
author = {Lakmali S. Dissanayake and Rungtiwa Phookamsak and Sajeewa S. N. Maharachchikumbura and Ahmed E. Al-Sabri and Jianchu Xu and Dhanushka N. Wanasinghe},
journal = {MycoKeys},
year = {2026},
month = oct,
doi = {10.3897/mycokeys.142.213343},
url = {https://doi.org/10.3897/mycokeys.142.213343},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Taxonomic novelties of two Neosulcatispora species (Pleosporales, Phaeosphaeriaceae) associated with Agave vera-cruz plants in a dry-hot valley of Yunnan, China
AU - Lakmali S. Dissanayake
AU - Rungtiwa Phookamsak
AU - Sajeewa S. N. Maharachchikumbura
AU - Ahmed E. Al-Sabri
AU - Jianchu Xu
AU - Dhanushka N. Wanasinghe
PY - 2026
DA - 2026/10/26
JO - MycoKeys
DO - 10.3897/mycokeys.142.213343
UR - https://doi.org/10.3897/mycokeys.142.213343
AB - Neosulcatispora is a poorly known coelomycetous genus of Phaeosphaeriaceae, previously represented by two species. During a survey of microfungi associated with dead leaves of Agave vera-cruz in the dry-hot valley of Honghe County, Yunnan Province, China, five isolates representing two unknown lineages were obtained. Morphology, culture characteristics and a multi-locus phylogenetic analysis of concatenated SSU, LSU, ITS, tef1-α and rpb2 sequence data support their recognition as two new species viz. Neosulcatispora agavicolasp. nov. and N. hongheensissp. nov. Neosulcatispora agavicola is characterized by relatively large, semi-immersed to erumpent conidiomata and golden-brown to dark brown, 1-septate, longitudinally striate conidia. Neosulcatispora hongheensis has smaller conidiomata and mature, 3–4-septate conidia. The new taxa form independent lineages within the clade containing the type species, N. agaves. In contrast, the ex-type strain of N. strelitziae is recovered elsewhere in Phaeosphaeriaceae in the present analysis, indicating that the generic placement of N. strelitziae requires reassessment using broader taxon and locus sampling. These findings increase the known diversity of Neosulcatispora sensu stricto and emphasize the dry-hot valleys of southwestern China as an understudied niche of undescribed plant-associated microfungi.
SN - 1314-4057
SN - 1314-4049
ER -