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

Autores
Noelting, María Cristina; Mantz, Guillermo Martín; Maiale, Santiago Javier; Molina, María del Carmen
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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
Materia
Ciencias Agrarias
Fungal disease
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/153831

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spelling Occurrence of Phomopsis sp. causing cankers on pecan trees in Buenos Aires province, ArgentinaNoelting, María CristinaMantz, Guillermo MartínMaiale, Santiago JavierMolina, María del CarmenCiencias AgrariasFungal diseaseProduction 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 Forestales2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/153831enginfo:eu-repo/semantics/altIdentifier/issn/2044-0588info:eu-repo/semantics/altIdentifier/doi/10.5197/j.2044-0588.2016.033.009info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:39:48Zoai:sedici.unlp.edu.ar:10915/153831Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:39:49.052SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Occurrence of Phomopsis sp. causing cankers on pecan trees in Buenos Aires province, Argentina
title Occurrence of Phomopsis sp. causing cankers on pecan trees in Buenos Aires province, Argentina
spellingShingle Occurrence of Phomopsis sp. causing cankers on pecan trees in Buenos Aires province, Argentina
Noelting, María Cristina
Ciencias Agrarias
Fungal disease
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
dc.creator.none.fl_str_mv Noelting, María Cristina
Mantz, Guillermo Martín
Maiale, Santiago Javier
Molina, María del Carmen
author Noelting, María Cristina
author_facet Noelting, María Cristina
Mantz, Guillermo Martín
Maiale, Santiago Javier
Molina, María del Carmen
author_role author
author2 Mantz, Guillermo Martín
Maiale, Santiago Javier
Molina, María del Carmen
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Agrarias
Fungal disease
topic Ciencias Agrarias
Fungal disease
dc.description.none.fl_txt_mv 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
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.
publishDate 2016
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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
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