Artículo
Characterization of fungal species associated with cladode brown spot on Nopalea cochenillifera in Brazil
Conforto, Erica Cinthia; Bernardi Lima, Nelson
; Silva, Fabio Junior Araújo; Câmara, Marcos Paz Saraiva; Maharachchikumbura, Sajeewa; Michereff, Sami Jorge
Fecha de publicación:
10/2019
Editorial:
Springer
Revista:
European Journal of Plant Pathology
ISSN:
0929-1873
e-ISSN:
1573-8469
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Cladode brown spot (CBS) is an important disease of Nopalea cochenillifera in the semiarid region of Northeastern Brazil. It has been reported in several countries, but its etiology is controversial, attributed to a complex of pathogens. Fifty fungal isolates were obtained and identified based on morphology and phylogeny, through analysis of the ribosomal DNA internal transcribed spacers (ITS), translation elongation factor 1-alpha (TEF1-alpha), β-tubulin (TUB-2), second largest subunit of RNA polymerase (RPB2), glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and the mating type locus MAT1?2 (ApMAT) partial gene sequences. Seven fungal general and twenty species were identified ? Alternaria sp., A. longipes and A. tenuissima; Colletotrichum fructicola and C. siamense; Fusarium lunatum, F. incarnatum, and F. verticillioides; Lasiodiplodia euphorbicola, L. iraniensis, L. pseutheobromae, L. theobromae and Lasiodiplodia sp.; Neofusicoccum batangarum; Neopestalotiopsis australis, N. protearum and Neopestalotiopsis sp.; and Nigrospora sphaerica, N. hainanensis and Nigrospora sp. Four of these species had already been reported on Cactaceae of the genus Opuntia, but only N. batangarum, C. fructicola and C. siamense have been reported to date on the genus Nopalea. All isolates were pathogenic to detached cladodes of N. cochenillifera ?Miúda?. Differences in aggressiveness were observed among the species, with L. iraniensis and F. lunatum characterized as the most aggressive species, whilst F. verticillioides as the least aggressive. This study provide important information on the fungi associated with cladode brown spot and improve the strategies for the management of disease on N. cochenillifera.
Palabras clave:
CLADODE DISEASE
,
PRICKLY PEAR
,
MULTILOCUS ANALYSIS
,
ETIOLOGY
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos (UFYMA)
Articulos de UNIDAD DE FITOPATOLOGIA Y MODELIZACION AGRICOLA
Articulos de UNIDAD DE FITOPATOLOGIA Y MODELIZACION AGRICOLA
Citación
Conforto, Erica Cinthia; Bernardi Lima, Nelson; Silva, Fabio Junior Araújo; Câmara, Marcos Paz Saraiva; Maharachchikumbura, Sajeewa; et al.; Characterization of fungal species associated with cladode brown spot on Nopalea cochenillifera in Brazil; Springer; European Journal of Plant Pathology; 155; 10-2019; 1179-1194
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