Allophoma species (Pleosporales: Didymellaceae) associated with Thunbergia grandiflora in Guangxi Province, China

Jun Yuan; Xiang-Yu Zeng; Kun Geng; Nalin N Wijayawardene; Jayarama D Bhat; Shi-Ping Wu; Yong Wang; Zai-Fu Yang

doi:10.3897/BDJ.9.e63643

Allophoma species (Pleosporales: Didymellaceae) associated with Thunbergia grandiflora in Guangxi Province, China

Biodivers Data J. 2021 Mar 1:9:e63643. doi: 10.3897/BDJ.9.e63643. eCollection 2021.

Authors

Jun Yuan¹, Xiang-Yu Zeng¹, Kun Geng², Nalin N Wijayawardene³, Jayarama D Bhat⁴, Shi-Ping Wu⁵, Yong Wang¹, Zai-Fu Yang¹

Affiliations

¹ Department of Plant Pathology, Agricultural College, Guizhou University, Guiyang, China Department of Plant Pathology, Agricultural College, Guizhou University Guiyang China.
² Guiyang plant protection and inspection station, Guiyang, China Guiyang plant protection and inspection station Guiyang China.
³ Center for Yunnan Plateau Biological Resources Protection and Utilization, Qujing Normal University, Qujing, China Center for Yunnan Plateau Biological Resources Protection and Utilization, Qujing Normal University Qujing China.
⁴ No. 128/1-J, Azad Co-Op Housing Society, Curca P.O, Goa, India No. 128/1-J, Azad Co-Op Housing Society, Curca P.O Goa India.
⁵ The Institute of Plant Protection, Guizhou Academy of Agricultural Sciences, Guiyang, China The Institute of Plant Protection, Guizhou Academy of Agricultural Sciences Guiyang China.

Abstract

Background: Thunbergia grandiflora belongs to the family Acanthaceae and is a widely distributed dicotyledonous plant in tropical and subtropical regions. Three isolates of Allophoma (Dothideomycetes, Pleosporales, Didymellaceae) were collected from leaves of T. grandiflora in Guangxi Province, China.

New information: Phylogenetic analyses of a combined ITS-LSU-rpb2-tub2 dataset indicate that one of our three strains represents an undescribed species with close affinity to A. minor and the other two strains clustered amongst other isolates of A. pterospermicola. Evidence from morphology and sequence analysis indicates that GUCC 2070.7 is a new species that we introduce here as A. thunbergiae. This is the first report about taxa of Allophoma from this host plant.

Keywords: Didymellaceae; one new species; phylogeny; taxonomy.

Jun Yuan, Xiang-Yu Zeng, Kun Geng, Nalin N. Wijayawardene, Jayarama D. Bhat, Shi-Ping Wu, Yong Wang, Zai-Fu Yang.