Identification and characterization of Colletotrichum species associated with mango anthracnose in Taiwan
Journal
European Journal of Plant Pathology
Journal Volume
157
Journal Issue
1
Pages
1-15
Date Issued
2020-04
Author(s)
Abstract
Mango is widely grown in Taiwan and anthracnose is one of the most important diseases of this crop. The aim of this study was to investigateColletotrichumspecies associated with mango and the pathogenicity of these fungal species. From 2006 to 2017, mango tissue from 33 mango orchards were collected. Eighty-seven isolates associated with mango were analyzed preliminarily by comparing partial glyceraldehyde-3-phosphate dehydrogenase sequences. Four species belonging toC. gloeosporioidescomplex were preliminarily identified, namelyC. asianum(68 isolates),C. fructicola(four isolates),C. siamense(eight isolates) andC. tropicale(two isolates). The other five isolates were identified as belonging to theC. acutatumcomplex. Ten isolates, belonging to differentColletotrichumspecies according to glyceraldehyde-3-phosphate dehydrogenase sequences prediction, were used for further morphology and multi-gene phylogenetic analysis. Five species were identified, namelyC. asianum,C. fructicola,C. siamense,C. tropicaleandC. scovillei. All five species showed pathogenicity on fruit, andC. asianumisolates C-1076 and C-1646 as well asC. siamenseisolate C-526 caused larger lesions than the other isolates. On mango leaves,C. asianum,C. fructicola,C. siamenseandC. scovilleiisolates were pathogenic, whileC. tropicaleisolates, C-141 and C-303, failed to cause significant foliar lesions. In addition,C. siamenseisolates C-526 and C-848 caused significantly larger lesions on leaves than other isolates. This study reports the identification and pathogenicity ofColletotrichumspecies related to mango anthracnose in Taiwan.
Subjects
Colletotrichumspp
Multi-gene phylogenetic analysis
Mango anthracnose
Pathogenicity test
Publisher
Springer
Type
journal article