Trabeculae in Patagonian mountain cypress (Austrocedrus chilensis) associated with Phytophthora austrocedri infection

Autores
Troncoso, Oscar Alberto; Greslebin, Alina Gabriela
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Phytophthora austrocedri is a straminipilous (heterokonta) organism that causesmortality of Austrocedrus chilensis, an endemic Cupressaceae from the PatagonianAndes forest in temperate South America. This soil pathogen colonizes andkills the roots and extends up to the stem causing necrosis of cambium, phloemand xylem ray parenchyma. An anatomical study of affected tissues was conductedin order to better understand the process of pathogen colonization andtree response. It was found that tracheids of the xylem of affected trees showedlarge numbers of trabeculae, both rod- and plate-shaped. The occurrence ofthese structures was clearly associated with the necrotic lesion area, since thetrabeculae were rare in healthy tissues above the necrotic lesion. Trabeculaeoccurred in a variety of arrangements: solitary or in long files, single, doubleor triple. Our results could indicate that trabeculae proliferation in tracheidsof A. chilensis trees is induced by the stress generated by the P. austrocedriinvasion. Whether this is triggered by a nonspecific stress response or in directresponse to the pathogen remains to be tested.
Fil: Troncoso, Oscar Alberto. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel; Argentina
Fil: Greslebin, Alina Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagóica. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Centro de Investigación Esquel de Montaña y Estepa Patagónica; Argentina
Materia
Forest Disease
Patagonia
Root Pathogens
Stress Response
Softwood
Wood Anatomy
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:11336/82701
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Trabeculae in Patagonian mountain cypress (Austrocedrus chilensis) associated with Phytophthora austrocedri infectionTroncoso, Oscar AlbertoGreslebin, Alina GabrielaForest DiseasePatagoniaRoot PathogensStress ResponseSoftwoodWood Anatomyhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Phytophthora austrocedri is a straminipilous (heterokonta) organism that causesmortality of Austrocedrus chilensis, an endemic Cupressaceae from the PatagonianAndes forest in temperate South America. This soil pathogen colonizes andkills the roots and extends up to the stem causing necrosis of cambium, phloemand xylem ray parenchyma. An anatomical study of affected tissues was conductedin order to better understand the process of pathogen colonization andtree response. It was found that tracheids of the xylem of affected trees showedlarge numbers of trabeculae, both rod- and plate-shaped. The occurrence ofthese structures was clearly associated with the necrotic lesion area, since thetrabeculae were rare in healthy tissues above the necrotic lesion. Trabeculaeoccurred in a variety of arrangements: solitary or in long files, single, doubleor triple. Our results could indicate that trabeculae proliferation in tracheidsof A. chilensis trees is induced by the stress generated by the P. austrocedriinvasion. Whether this is triggered by a nonspecific stress response or in directresponse to the pathogen remains to be tested.Fil: Troncoso, Oscar Alberto. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel; ArgentinaFil: Greslebin, Alina Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagóica. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Centro de Investigación Esquel de Montaña y Estepa Patagónica; ArgentinaBrill Academic Publishers2018-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/82701Troncoso, Oscar Alberto; Greslebin, Alina Gabriela; Trabeculae in Patagonian mountain cypress (Austrocedrus chilensis) associated with Phytophthora austrocedri infection; Brill Academic Publishers; IAWA Journal; 39; 2; 4-2018; 209-2200928-1541CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1163/22941932-20170?203info:eu-repo/semantics/altIdentifier/url/https://brill.com/view/journals/iawa/39/2/article-p209_5.xml?lang=eninfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:45:23Zoai:ri.conicet.gov.ar:11336/82701instacron: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:34982025-09-29 10:45:23.348CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Trabeculae in Patagonian mountain cypress (Austrocedrus chilensis) associated with Phytophthora austrocedri infection
title Trabeculae in Patagonian mountain cypress (Austrocedrus chilensis) associated with Phytophthora austrocedri infection
spellingShingle Trabeculae in Patagonian mountain cypress (Austrocedrus chilensis) associated with Phytophthora austrocedri infection
Troncoso, Oscar Alberto
Forest Disease
Patagonia
Root Pathogens
Stress Response
Softwood
Wood Anatomy
title_short Trabeculae in Patagonian mountain cypress (Austrocedrus chilensis) associated with Phytophthora austrocedri infection
title_full Trabeculae in Patagonian mountain cypress (Austrocedrus chilensis) associated with Phytophthora austrocedri infection
title_fullStr Trabeculae in Patagonian mountain cypress (Austrocedrus chilensis) associated with Phytophthora austrocedri infection
title_full_unstemmed Trabeculae in Patagonian mountain cypress (Austrocedrus chilensis) associated with Phytophthora austrocedri infection
title_sort Trabeculae in Patagonian mountain cypress (Austrocedrus chilensis) associated with Phytophthora austrocedri infection
dc.creator.none.fl_str_mv Troncoso, Oscar Alberto
Greslebin, Alina Gabriela
author Troncoso, Oscar Alberto
author_facet Troncoso, Oscar Alberto
Greslebin, Alina Gabriela
author_role author
author2 Greslebin, Alina Gabriela
author2_role author
dc.subject.none.fl_str_mv Forest Disease
Patagonia
Root Pathogens
Stress Response
Softwood
Wood Anatomy
topic Forest Disease
Patagonia
Root Pathogens
Stress Response
Softwood
Wood Anatomy
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Phytophthora austrocedri is a straminipilous (heterokonta) organism that causesmortality of Austrocedrus chilensis, an endemic Cupressaceae from the PatagonianAndes forest in temperate South America. This soil pathogen colonizes andkills the roots and extends up to the stem causing necrosis of cambium, phloemand xylem ray parenchyma. An anatomical study of affected tissues was conductedin order to better understand the process of pathogen colonization andtree response. It was found that tracheids of the xylem of affected trees showedlarge numbers of trabeculae, both rod- and plate-shaped. The occurrence ofthese structures was clearly associated with the necrotic lesion area, since thetrabeculae were rare in healthy tissues above the necrotic lesion. Trabeculaeoccurred in a variety of arrangements: solitary or in long files, single, doubleor triple. Our results could indicate that trabeculae proliferation in tracheidsof A. chilensis trees is induced by the stress generated by the P. austrocedriinvasion. Whether this is triggered by a nonspecific stress response or in directresponse to the pathogen remains to be tested.
Fil: Troncoso, Oscar Alberto. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel; Argentina
Fil: Greslebin, Alina Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagóica. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Centro de Investigación Esquel de Montaña y Estepa Patagónica; Argentina
description Phytophthora austrocedri is a straminipilous (heterokonta) organism that causesmortality of Austrocedrus chilensis, an endemic Cupressaceae from the PatagonianAndes forest in temperate South America. This soil pathogen colonizes andkills the roots and extends up to the stem causing necrosis of cambium, phloemand xylem ray parenchyma. An anatomical study of affected tissues was conductedin order to better understand the process of pathogen colonization andtree response. It was found that tracheids of the xylem of affected trees showedlarge numbers of trabeculae, both rod- and plate-shaped. The occurrence ofthese structures was clearly associated with the necrotic lesion area, since thetrabeculae were rare in healthy tissues above the necrotic lesion. Trabeculaeoccurred in a variety of arrangements: solitary or in long files, single, doubleor triple. Our results could indicate that trabeculae proliferation in tracheidsof A. chilensis trees is induced by the stress generated by the P. austrocedriinvasion. Whether this is triggered by a nonspecific stress response or in directresponse to the pathogen remains to be tested.
publishDate 2018
dc.date.none.fl_str_mv 2018-04
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/11336/82701
Troncoso, Oscar Alberto; Greslebin, Alina Gabriela; Trabeculae in Patagonian mountain cypress (Austrocedrus chilensis) associated with Phytophthora austrocedri infection; Brill Academic Publishers; IAWA Journal; 39; 2; 4-2018; 209-220
0928-1541
CONICET Digital
CONICET
url http://hdl.handle.net/11336/82701
identifier_str_mv Troncoso, Oscar Alberto; Greslebin, Alina Gabriela; Trabeculae in Patagonian mountain cypress (Austrocedrus chilensis) associated with Phytophthora austrocedri infection; Brill Academic Publishers; IAWA Journal; 39; 2; 4-2018; 209-220
0928-1541
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1163/22941932-20170?203
info:eu-repo/semantics/altIdentifier/url/https://brill.com/view/journals/iawa/39/2/article-p209_5.xml?lang=en
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
application/pdf
dc.publisher.none.fl_str_mv Brill Academic Publishers
publisher.none.fl_str_mv Brill Academic Publishers
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 13.070432

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