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Issue: Vol. 324 No. 1: 6 October 2017
Type: Article
Published: 2017-10-06
DOI: 10.11646/phytotaxa.324.1.5
Page range: 73–82
Abstract views: 23
PDF downloaded: 1

Morphological and phylogenetic insights resolve Plenodomus sinensis (Leptosphaeriaceae) as a new species

Center of Excellence, Mae Fah Luang University, Chiang Rai, Thailand Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan China World Agro Forestry Centre, East and Central Asia, 132 Lanhei Road, Kunming 650201, Yunnan China School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
Center of Excellence, Mae Fah Luang University, Chiang Rai, Thailand Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan China World Agro Forestry Centre, East and Central Asia, 132 Lanhei Road, Kunming 650201, Yunnan China Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
Center of Excellence, Mae Fah Luang University, Chiang Rai, Thailand Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan China World Agro Forestry Centre, East and Central Asia, 132 Lanhei Road, Kunming 650201, Yunnan China School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
Germplasm Bank of Wild Species in Southwest China, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, China
Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
Center of Excellence, Mae Fah Luang University, Chiang Rai, Thailand Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan China World Agro Forestry Centre, East and Central Asia, 132 Lanhei Road, Kunming 650201, Yunnan China School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
Dothideomycetes Pleosporales phylogeny taxonomy Fungi

Abstract

Plenodomus species were collected from Tamarindus indica L. (Fabaceae) and Plukenetia volubilis L. (Euphorbiaceae) in Yunnan Province, China and subjected to morphological and molecular analysis. Morphologically novel collections comprise unique characters in having mucilaginous globoid-shaped apical and basal appendages (1.5–1.8 μm) and wider third cell from the apex in ascospores. Phylogenetic analysis (Maximum-likelihood, maximum-parsimony and Bayesian analyses) of combined LSU, SSU and ITS sequence data reveal that these collections differ from all other species in the genus. Therefore, a novel species, Plenodomus sinensis is introduced in this study. The new species is compared with other Plenodomus species and a comprehensive description and micrographs are provided.