First Report of Apical Necrosis in Walnut Cultivars from Northern Argentinean Patagonia

Autores
Temperini, Carolina Virginia; Pardo, Alejandro Guillermo; Pose, Graciela Noemi
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Walnut blight caused by Xanthomonas arborícola pv. juglandis and apical necrosis are severe diseases that cause premature drop of walnuts all around the world. Evidence from previous studies proposes Xanthomonas arborícola pv. juglandis together with Fusarium spp. and Alternaria spp. as causal agents of apical necrosis. While walnut blight is a well-known pathology in Argentina, apical necrosis has not been reported yet in this country. However, during 2013 and 2014 seasons, serious damages were registered in the nut producing region of Río Negro Middle Valley in northern Argentinean Patagonia. Diseased fruits exhibited symptoms that matched those described for walnut blight and apical necrosis. Therefore, the aim of this study was to determine the incidence of these pathologies and the microorganisms involved in their etiology. As a result, it was possible to identify morphologically and molecularly the bacteria isolated from damaged fruits, confirming their identity as Xanthomonas arborícola pv. juglandis. Moreover, A. tenuissima was found in a high prevalence in damaged as well as in healthy fruits, whereas Fusarium spp. was isolated with a low frequency in both. When pathogenicity tests were performed, it was demonstrated the ability of the three microorganisms to produce typical lesions in healthy nuts. Thus, we can presume that both diseases occurred during this couple of years in this region. This is the first report of apical necrosis in Argentina
Fil: Temperini, Carolina Virginia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidad Nacional de Río Negro. Sede Alto Valle. Escuela de Producción, Tecnología y Medio Ambiente; Argentina
Fil: Pardo, Alejandro Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología; Argentina
Fil: Pose, Graciela Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidad Nacional de Río Negro. Sede Alto Valle. Escuela de Producción, Tecnología y Medio Ambiente; Argentina
Materia
APICAL NECROSIS
XANTHOMONAS ARBORICOLA PV. JUGLANDIS
ALTERNARIA TENUISSIMA
JUGLANS REGIA L
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/72406
Acceder
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network_name_str CONICET Digital (CONICET)
spelling First Report of Apical Necrosis in Walnut Cultivars from Northern Argentinean PatagoniaTemperini, Carolina VirginiaPardo, Alejandro GuillermoPose, Graciela NoemiAPICAL NECROSISXANTHOMONAS ARBORICOLA PV. JUGLANDISALTERNARIA TENUISSIMAJUGLANS REGIA Lhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Walnut blight caused by Xanthomonas arborícola pv. juglandis and apical necrosis are severe diseases that cause premature drop of walnuts all around the world. Evidence from previous studies proposes Xanthomonas arborícola pv. juglandis together with Fusarium spp. and Alternaria spp. as causal agents of apical necrosis. While walnut blight is a well-known pathology in Argentina, apical necrosis has not been reported yet in this country. However, during 2013 and 2014 seasons, serious damages were registered in the nut producing region of Río Negro Middle Valley in northern Argentinean Patagonia. Diseased fruits exhibited symptoms that matched those described for walnut blight and apical necrosis. Therefore, the aim of this study was to determine the incidence of these pathologies and the microorganisms involved in their etiology. As a result, it was possible to identify morphologically and molecularly the bacteria isolated from damaged fruits, confirming their identity as Xanthomonas arborícola pv. juglandis. Moreover, A. tenuissima was found in a high prevalence in damaged as well as in healthy fruits, whereas Fusarium spp. was isolated with a low frequency in both. When pathogenicity tests were performed, it was demonstrated the ability of the three microorganisms to produce typical lesions in healthy nuts. Thus, we can presume that both diseases occurred during this couple of years in this region. This is the first report of apical necrosis in ArgentinaFil: Temperini, Carolina Virginia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidad Nacional de Río Negro. Sede Alto Valle. Escuela de Producción, Tecnología y Medio Ambiente; ArgentinaFil: Pardo, Alejandro Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología; ArgentinaFil: Pose, Graciela Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidad Nacional de Río Negro. Sede Alto Valle. Escuela de Producción, Tecnología y Medio Ambiente; ArgentinaLongdom Publishing2017-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/72406Temperini, Carolina Virginia; Pardo, Alejandro Guillermo; Pose, Graciela Noemi; First Report of Apical Necrosis in Walnut Cultivars from Northern Argentinean Patagonia; Longdom Publishing; Journal of Plant Pathology and Microbiology; 8; 7; 7-2017; 1-62157-7471CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.4172/2157-7471.1000414info:eu-repo/semantics/altIdentifier/url/https://www.longdom.org/open-access/first-report-of-apical-necrosis-in-walnut-cultivars-from-northernargentinean-patagonia-2157-7471-1000414.pdfinfo:eu-repo/semantics/altIdentifier/url/https://www.longdom.org/archive/jppm-volume-8-issue-7-year-2017.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:04:15Zoai:ri.conicet.gov.ar:11336/72406instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:04:15.463CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv First Report of Apical Necrosis in Walnut Cultivars from Northern Argentinean Patagonia
title First Report of Apical Necrosis in Walnut Cultivars from Northern Argentinean Patagonia
spellingShingle First Report of Apical Necrosis in Walnut Cultivars from Northern Argentinean Patagonia
Temperini, Carolina Virginia
APICAL NECROSIS
XANTHOMONAS ARBORICOLA PV. JUGLANDIS
ALTERNARIA TENUISSIMA
JUGLANS REGIA L
title_short First Report of Apical Necrosis in Walnut Cultivars from Northern Argentinean Patagonia
title_full First Report of Apical Necrosis in Walnut Cultivars from Northern Argentinean Patagonia
title_fullStr First Report of Apical Necrosis in Walnut Cultivars from Northern Argentinean Patagonia
title_full_unstemmed First Report of Apical Necrosis in Walnut Cultivars from Northern Argentinean Patagonia
title_sort First Report of Apical Necrosis in Walnut Cultivars from Northern Argentinean Patagonia
dc.creator.none.fl_str_mv Temperini, Carolina Virginia
Pardo, Alejandro Guillermo
Pose, Graciela Noemi
author Temperini, Carolina Virginia
author_facet Temperini, Carolina Virginia
Pardo, Alejandro Guillermo
Pose, Graciela Noemi
author_role author
author2 Pardo, Alejandro Guillermo
Pose, Graciela Noemi
author2_role author
author
dc.subject.none.fl_str_mv APICAL NECROSIS
XANTHOMONAS ARBORICOLA PV. JUGLANDIS
ALTERNARIA TENUISSIMA
JUGLANS REGIA L
topic APICAL NECROSIS
XANTHOMONAS ARBORICOLA PV. JUGLANDIS
ALTERNARIA TENUISSIMA
JUGLANS REGIA L
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Walnut blight caused by Xanthomonas arborícola pv. juglandis and apical necrosis are severe diseases that cause premature drop of walnuts all around the world. Evidence from previous studies proposes Xanthomonas arborícola pv. juglandis together with Fusarium spp. and Alternaria spp. as causal agents of apical necrosis. While walnut blight is a well-known pathology in Argentina, apical necrosis has not been reported yet in this country. However, during 2013 and 2014 seasons, serious damages were registered in the nut producing region of Río Negro Middle Valley in northern Argentinean Patagonia. Diseased fruits exhibited symptoms that matched those described for walnut blight and apical necrosis. Therefore, the aim of this study was to determine the incidence of these pathologies and the microorganisms involved in their etiology. As a result, it was possible to identify morphologically and molecularly the bacteria isolated from damaged fruits, confirming their identity as Xanthomonas arborícola pv. juglandis. Moreover, A. tenuissima was found in a high prevalence in damaged as well as in healthy fruits, whereas Fusarium spp. was isolated with a low frequency in both. When pathogenicity tests were performed, it was demonstrated the ability of the three microorganisms to produce typical lesions in healthy nuts. Thus, we can presume that both diseases occurred during this couple of years in this region. This is the first report of apical necrosis in Argentina
Fil: Temperini, Carolina Virginia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidad Nacional de Río Negro. Sede Alto Valle. Escuela de Producción, Tecnología y Medio Ambiente; Argentina
Fil: Pardo, Alejandro Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología; Argentina
Fil: Pose, Graciela Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidad Nacional de Río Negro. Sede Alto Valle. Escuela de Producción, Tecnología y Medio Ambiente; Argentina
description Walnut blight caused by Xanthomonas arborícola pv. juglandis and apical necrosis are severe diseases that cause premature drop of walnuts all around the world. Evidence from previous studies proposes Xanthomonas arborícola pv. juglandis together with Fusarium spp. and Alternaria spp. as causal agents of apical necrosis. While walnut blight is a well-known pathology in Argentina, apical necrosis has not been reported yet in this country. However, during 2013 and 2014 seasons, serious damages were registered in the nut producing region of Río Negro Middle Valley in northern Argentinean Patagonia. Diseased fruits exhibited symptoms that matched those described for walnut blight and apical necrosis. Therefore, the aim of this study was to determine the incidence of these pathologies and the microorganisms involved in their etiology. As a result, it was possible to identify morphologically and molecularly the bacteria isolated from damaged fruits, confirming their identity as Xanthomonas arborícola pv. juglandis. Moreover, A. tenuissima was found in a high prevalence in damaged as well as in healthy fruits, whereas Fusarium spp. was isolated with a low frequency in both. When pathogenicity tests were performed, it was demonstrated the ability of the three microorganisms to produce typical lesions in healthy nuts. Thus, we can presume that both diseases occurred during this couple of years in this region. This is the first report of apical necrosis in Argentina
publishDate 2017
dc.date.none.fl_str_mv 2017-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/72406
Temperini, Carolina Virginia; Pardo, Alejandro Guillermo; Pose, Graciela Noemi; First Report of Apical Necrosis in Walnut Cultivars from Northern Argentinean Patagonia; Longdom Publishing; Journal of Plant Pathology and Microbiology; 8; 7; 7-2017; 1-6
2157-7471
CONICET Digital
CONICET
url http://hdl.handle.net/11336/72406
identifier_str_mv Temperini, Carolina Virginia; Pardo, Alejandro Guillermo; Pose, Graciela Noemi; First Report of Apical Necrosis in Walnut Cultivars from Northern Argentinean Patagonia; Longdom Publishing; Journal of Plant Pathology and Microbiology; 8; 7; 7-2017; 1-6
2157-7471
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.4172/2157-7471.1000414
info:eu-repo/semantics/altIdentifier/url/https://www.longdom.org/open-access/first-report-of-apical-necrosis-in-walnut-cultivars-from-northernargentinean-patagonia-2157-7471-1000414.pdf
info:eu-repo/semantics/altIdentifier/url/https://www.longdom.org/archive/jppm-volume-8-issue-7-year-2017.html
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Longdom Publishing
publisher.none.fl_str_mv Longdom Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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