Three new microfungi (Ascomycota) species from southern China

Area of Science:

• Mycology
• Plant Pathology
• Fungal Taxonomy

Background:

• The genera Apiospora, Microdochium, and Pestalotiopsis are globally recognized for their diverse ecological roles, including plant pathogenicity, endophytic associations, and saprotrophic decomposition.
• Accurate identification and classification of fungal species are crucial for understanding their impact on ecosystems and agriculture.

Purpose of the Study:

• To describe and formally propose three new fungal species from southern China.
• To differentiate novel species from morphologically similar and phylogenetically related taxa within the genera Apiospora, Microdochium, and Pestalotiopsis.

Main Methods:

• Integration of multiple molecular markers (e.g., ITS, LSU, TEF1-α) for phylogenetic analysis.
• Detailed morphological characterization of fungal isolates, including macroscopic and microscopic features.
• Comparative analysis with closely related and morphologically similar known species.

Main Results:

• Three new species are proposed: Apiosporabambusigena (from bamboo), Microdochiumjianfenglingense (from bamboo), and Pestalotiopsissolicola (from soil).
• Apiosporabambusigena and M. jianfenglingense were isolated from bamboo in Hainan Province.
• P. solicola was isolated from soil in Yunnan Province.
• Phylogenetic analyses confirmed the distinctiveness of the new species.

Conclusions:

• The study expands the known diversity of Apiospora, Microdochium, and Pestalotiopsis.
• The findings contribute to the fungal inventory of southern China, with implications for understanding fungal ecology and evolution.
• Accurate taxonomic descriptions are provided for Apiosporabambusigena, M. jianfenglingense, and P. solicola.