Occurrence of Phomopsis sp. causing cankers on pecan trees in Buenos Aires province, Argentina

Production of pecan (Carya illinoiensis) continues to increase in Argentina, due mainly to its nutritional qualities and sustained export demand. In April 2014, the presence of cankers on branches and twigs was observed on pecan trees in the province of Buenos Aires, where the incidence ranged from...

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Autores principales: Noelting, María Cristina, Mantz, Guillermo Martín, Maiale, Santiago Javier, Molina, María del Carmen
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Ciencias Agrarias
Fungal disease
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/153831
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-153831
record_format dspace
spelling I19-R120-10915-1538312023-06-01T20:04:41Z http://sedici.unlp.edu.ar/handle/10915/153831 issn:2044-0588 Occurrence of Phomopsis sp. causing cankers on pecan trees in Buenos Aires province, Argentina Noelting, María Cristina Mantz, Guillermo Martín Maiale, Santiago Javier Molina, María del Carmen 2016 2023-06-01T17:54:47Z en Ciencias Agrarias Fungal disease Production of pecan (Carya illinoiensis) continues to increase in Argentina, due mainly to its nutritional qualities and sustained export demand. In April 2014, the presence of cankers on branches and twigs was observed on pecan trees in the province of Buenos Aires, where the incidence ranged from 10 to 50% of the surveyed plantations (Fig. 1). Fungal isolates with morphological characteristics similar to those of Phomopsis (Sutton, 1980) were collected from cankers on potato dextrose agar after seven days of incubation in a growth chamber at 25°C with a 12 h photoperiod. Colonies in their early stages were whitish cottony (Fig. 2). They contained numerous, globose, brown to black pycnidia of 346.1 ± 59.8 μm × 286.4 ± 55.6 μm (Fig. 3), alpha hyaline conidia, fusiform to ellipsoid in shape, bigutulate with an average size of 6.8 ± 1.0 μm × 2.0 ± 0.2 μm, and beta filiform hyaline conidia, hamate in shape with average size of 21.6 ± 3.9 μm × 1.0 ± 0.1 μm. Facultad de Ciencias Agrarias y Forestales Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
Fungal disease
spellingShingle Ciencias Agrarias
Fungal disease
Noelting, María Cristina
Mantz, Guillermo Martín
Maiale, Santiago Javier
Molina, María del Carmen
Occurrence of Phomopsis sp. causing cankers on pecan trees in Buenos Aires province, Argentina
topic_facet Ciencias Agrarias
Fungal disease
description Production of pecan (Carya illinoiensis) continues to increase in Argentina, due mainly to its nutritional qualities and sustained export demand. In April 2014, the presence of cankers on branches and twigs was observed on pecan trees in the province of Buenos Aires, where the incidence ranged from 10 to 50% of the surveyed plantations (Fig. 1). Fungal isolates with morphological characteristics similar to those of Phomopsis (Sutton, 1980) were collected from cankers on potato dextrose agar after seven days of incubation in a growth chamber at 25°C with a 12 h photoperiod. Colonies in their early stages were whitish cottony (Fig. 2). They contained numerous, globose, brown to black pycnidia of 346.1 ± 59.8 μm × 286.4 ± 55.6 μm (Fig. 3), alpha hyaline conidia, fusiform to ellipsoid in shape, bigutulate with an average size of 6.8 ± 1.0 μm × 2.0 ± 0.2 μm, and beta filiform hyaline conidia, hamate in shape with average size of 21.6 ± 3.9 μm × 1.0 ± 0.1 μm.
format Articulo
Articulo
author Noelting, María Cristina
Mantz, Guillermo Martín
Maiale, Santiago Javier
Molina, María del Carmen
author_facet Noelting, María Cristina
Mantz, Guillermo Martín
Maiale, Santiago Javier
Molina, María del Carmen
author_sort Noelting, María Cristina
title Occurrence of Phomopsis sp. causing cankers on pecan trees in Buenos Aires province, Argentina
title_short Occurrence of Phomopsis sp. causing cankers on pecan trees in Buenos Aires province, Argentina
title_full Occurrence of Phomopsis sp. causing cankers on pecan trees in Buenos Aires province, Argentina
title_fullStr Occurrence of Phomopsis sp. causing cankers on pecan trees in Buenos Aires province, Argentina
title_full_unstemmed Occurrence of Phomopsis sp. causing cankers on pecan trees in Buenos Aires province, Argentina
title_sort occurrence of phomopsis sp. causing cankers on pecan trees in buenos aires province, argentina
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/153831
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