Characterization ofColletotrichum truncatumfrom papaya, pepper and physic nut based on phylogeny, morphology and pathogenicity
| Autor: | E. Huchin-Poot, Daisy Pérez-Brito, Ángel Nexticapan-Garcéz, Claudia Torres-Calzada, Rodolfo Martín-Mex, Raul Tapia-Tussell, Inocencio Higuera-Ciapara |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine Veterinary medicine Phylogenetic tree biology food and beverages Plant Science Horticulture biology.organism_classification 01 natural sciences 03 medical and health sciences Monophyly 030104 developmental biology Disease management (agriculture) Phylogenetics Botany Pepper Genetics Internal transcribed spacer Clade Colletotrichum truncatum Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | Plant Pathology. 67:821-830 |
| ISSN: | 0032-0862 |
| Popis: | Colletotrichum truncatum (Schwein.) Andrus & W. D. Moore (syn. C. capsici) has been identified as the causal agent of anthracnose on various hosts, predominantly pepper (Capsicum spp.) plants. The aim of this study was to determine whether C. truncatum isolates infecting papaya, pepper and physic nut in southeastern Mexico are morphologically, genetically and pathogenically different in order to improve disease management strategies. A total of 113 C. truncatum isolates collected in five producer states were subjected to phenotypic characterization and divided into six different morphological groups. These morphological traits and the location of the isolates were used to select a subset of 20 isolates for further studies. Differences in the pathogenicity of the isolates were tested with a cross-inoculation assay using pepper, papaya and physic nut. The pathogenicity tests revealed that all isolates could infect the three hosts and produce typical anthracnose symptoms, indicating a lack of host specificity for this species and therefore its pathogenic potential on other plants. Phylogenetic analysis using internal transcribed spacer (ITS) and glyceraldehyde 3-phosphate dehydrogenase (GAPDH) sequences of the C. truncatum strains from this study and reference strains was performed, grouping the isolates into a monophyletic clade. This study reports for the first time the characterization of C. truncatum causing anthracnose disease on three different hosts in Mexico. This article is protected by copyright. All rights reserved. |
| Databáze: | OpenAIRE |
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