New species of Diaporthe (Diaporthaceae, Diaporthales) from Bauhiniavariegata in China

Yaquan Zhu; Lei Ma; Han Xue; Yong Li; Ning Jiang

doi:10.3897/mycokeys.108.128983

New species of Diaporthe (Diaporthaceae, Diaporthales) from Bauhiniavariegata in China

MycoKeys. 2024 Sep 13:108:317-335. doi: 10.3897/mycokeys.108.128983. eCollection 2024.

Authors

Yaquan Zhu¹, Lei Ma², Han Xue¹, Yong Li¹, Ning Jiang¹

Affiliations

¹ Key Laboratory of Biodiversity Conservation of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing 100091, China Ecology and Nature Conservation Institute, Chinese Academy of Forestry Beijing China.
² Forest Pest Control and Quarantine Station of Tonghua County, Tonghua 134001, China Forest Pest Control and Quarantine Station of Tonghua County Tonghua China.

Abstract

Diaporthe species are known as endophytes, saprobes and pathogens infecting a wide range of plants and resulting in important crop diseases. In the present study, four strains of Diaporthe were obtained from diseased leaves of Bauhiniavariegata in Guangdong Province, China. Phylogenetic analyses were conducted to identify these strains using five gene regions: internal transcribed spacer (ITS), calmodulin (cal), histone H3 (his3), translation elongation factor 1-α (tef1) and β-tubulin (tub2). The results combined with morphology revealed two new species of Diaporthe named D.bauhiniicola in D.arecae species complex and D.guangzhouensis in D.sojae species complex.

Keywords: Diaporthales; morphology; multi-gene phylogeny; taxonomy; two new taxa.

Yaquan Zhu, Lei Ma, Han Xue, Yong Li, Ning Jiang.

Grants and funding

This study was supported by Fundamental Research Funds of CAF (CAFYBB2023PA002), and the National Microbial Resource Center of the Ministry of Science and Technology of the People’s Republic of China (NMRC-2023-7).