Ultrastructural and cell wall modifications during infection of <i>Eucalyptus viminalis</i> roots by a pathogenic <i>Fusarium oxysporum</i> strain
- Autores
- Salerno, María Isabel; Gianinazzi, Silvio; Arnould, Christine; Gianinazzi-Pearson, Vivienne
- Año de publicación
- 2004
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Fusarium species are soil-borne fungal pathogens that produce a variety of disease symptoms when attacking crop plants. The mode of root colonization of Eucalyptus viminalis seedlings by a pathogenic F. oxyporum strain (Foeu1) at the ultrastructural level and changes in cell wall pectin during host pathogen interactions are described. Root systems of E. viminalis plants were inoculated with F. oxysporum in an in vitro model system. Hyphae of F. oxysporum adhered to the outer epidermal cell walls through fibrillar material, and after penetration they spread into the internal tissues. They developed intercellularly and intracellularly in the root cortex and invaded vascular tissues. Papillae were induced, and the host plasma membrane ruptured in colonized cells, causing rapid host tissue and cell damage. Changes in distribution and occurrence of nonesterified and methyl-esterified pectins were evaluated after root colonization by F. oxysporum using two monoclonal antibodies, JIM 5 and JIM 7, respectively. Nonesterified pectin in control roots was mainly localized in the epidermal cell walls and middle lamellae in parenchymal cortex, whereas methyl-esterified pectin accumulated more in primary cell walls of the cortex and phloem. Decreases in immunodetected nonesterified and methyl-esterified pectins were associated with extensive plant tissue degradation after root colonization by the pathogenic fungus.
Facultad de Ciencias Agrarias y Forestales - Materia
-
Ciencias Agrarias
Root pathogenesis
Fusarium oxysporum
Eucalyptus viminalis
Ultrastructure
Pectin - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/141454
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Ultrastructural and cell wall modifications during infection of <i>Eucalyptus viminalis</i> roots by a pathogenic <i>Fusarium oxysporum</i> strainSalerno, María IsabelGianinazzi, SilvioArnould, ChristineGianinazzi-Pearson, VivienneCiencias AgrariasRoot pathogenesisFusarium oxysporumEucalyptus viminalisUltrastructurePectin<i>Fusarium</i> species are soil-borne fungal pathogens that produce a variety of disease symptoms when attacking crop plants. The mode of root colonization of <i>Eucalyptus viminalis</i> seedlings by a pathogenic <i>F. oxyporum</i> strain (Foeu1) at the ultrastructural level and changes in cell wall pectin during host pathogen interactions are described. Root systems of <i>E. viminalis</i> plants were inoculated with <i>F. oxysporum</i> in an in vitro model system. Hyphae of <i>F. oxysporum</i> adhered to the outer epidermal cell walls through fibrillar material, and after penetration they spread into the internal tissues. They developed intercellularly and intracellularly in the root cortex and invaded vascular tissues. Papillae were induced, and the host plasma membrane ruptured in colonized cells, causing rapid host tissue and cell damage. Changes in distribution and occurrence of nonesterified and methyl-esterified pectins were evaluated after root colonization by <i>F. oxysporum</i> using two monoclonal antibodies, JIM 5 and JIM 7, respectively. Nonesterified pectin in control roots was mainly localized in the epidermal cell walls and middle lamellae in parenchymal cortex, whereas methyl-esterified pectin accumulated more in primary cell walls of the cortex and phloem. Decreases in immunodetected nonesterified and methyl-esterified pectins were associated with extensive plant tissue degradation after root colonization by the pathogenic fungus.Facultad de Ciencias Agrarias y Forestales2004-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf145-152http://sedici.unlp.edu.ar/handle/10915/141454enginfo:eu-repo/semantics/altIdentifier/issn/1345-2630info:eu-repo/semantics/altIdentifier/issn/1610-739Xinfo:eu-repo/semantics/altIdentifier/doi/10.1007/s10327-004-0107-xinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:32:26Zoai:sedici.unlp.edu.ar:10915/141454Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:32:27.117SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Ultrastructural and cell wall modifications during infection of <i>Eucalyptus viminalis</i> roots by a pathogenic <i>Fusarium oxysporum</i> strain |
title |
Ultrastructural and cell wall modifications during infection of <i>Eucalyptus viminalis</i> roots by a pathogenic <i>Fusarium oxysporum</i> strain |
spellingShingle |
Ultrastructural and cell wall modifications during infection of <i>Eucalyptus viminalis</i> roots by a pathogenic <i>Fusarium oxysporum</i> strain Salerno, María Isabel Ciencias Agrarias Root pathogenesis Fusarium oxysporum Eucalyptus viminalis Ultrastructure Pectin |
title_short |
Ultrastructural and cell wall modifications during infection of <i>Eucalyptus viminalis</i> roots by a pathogenic <i>Fusarium oxysporum</i> strain |
title_full |
Ultrastructural and cell wall modifications during infection of <i>Eucalyptus viminalis</i> roots by a pathogenic <i>Fusarium oxysporum</i> strain |
title_fullStr |
Ultrastructural and cell wall modifications during infection of <i>Eucalyptus viminalis</i> roots by a pathogenic <i>Fusarium oxysporum</i> strain |
title_full_unstemmed |
Ultrastructural and cell wall modifications during infection of <i>Eucalyptus viminalis</i> roots by a pathogenic <i>Fusarium oxysporum</i> strain |
title_sort |
Ultrastructural and cell wall modifications during infection of <i>Eucalyptus viminalis</i> roots by a pathogenic <i>Fusarium oxysporum</i> strain |
dc.creator.none.fl_str_mv |
Salerno, María Isabel Gianinazzi, Silvio Arnould, Christine Gianinazzi-Pearson, Vivienne |
author |
Salerno, María Isabel |
author_facet |
Salerno, María Isabel Gianinazzi, Silvio Arnould, Christine Gianinazzi-Pearson, Vivienne |
author_role |
author |
author2 |
Gianinazzi, Silvio Arnould, Christine Gianinazzi-Pearson, Vivienne |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Ciencias Agrarias Root pathogenesis Fusarium oxysporum Eucalyptus viminalis Ultrastructure Pectin |
topic |
Ciencias Agrarias Root pathogenesis Fusarium oxysporum Eucalyptus viminalis Ultrastructure Pectin |
dc.description.none.fl_txt_mv |
<i>Fusarium</i> species are soil-borne fungal pathogens that produce a variety of disease symptoms when attacking crop plants. The mode of root colonization of <i>Eucalyptus viminalis</i> seedlings by a pathogenic <i>F. oxyporum</i> strain (Foeu1) at the ultrastructural level and changes in cell wall pectin during host pathogen interactions are described. Root systems of <i>E. viminalis</i> plants were inoculated with <i>F. oxysporum</i> in an in vitro model system. Hyphae of <i>F. oxysporum</i> adhered to the outer epidermal cell walls through fibrillar material, and after penetration they spread into the internal tissues. They developed intercellularly and intracellularly in the root cortex and invaded vascular tissues. Papillae were induced, and the host plasma membrane ruptured in colonized cells, causing rapid host tissue and cell damage. Changes in distribution and occurrence of nonesterified and methyl-esterified pectins were evaluated after root colonization by <i>F. oxysporum</i> using two monoclonal antibodies, JIM 5 and JIM 7, respectively. Nonesterified pectin in control roots was mainly localized in the epidermal cell walls and middle lamellae in parenchymal cortex, whereas methyl-esterified pectin accumulated more in primary cell walls of the cortex and phloem. Decreases in immunodetected nonesterified and methyl-esterified pectins were associated with extensive plant tissue degradation after root colonization by the pathogenic fungus. Facultad de Ciencias Agrarias y Forestales |
description |
<i>Fusarium</i> species are soil-borne fungal pathogens that produce a variety of disease symptoms when attacking crop plants. The mode of root colonization of <i>Eucalyptus viminalis</i> seedlings by a pathogenic <i>F. oxyporum</i> strain (Foeu1) at the ultrastructural level and changes in cell wall pectin during host pathogen interactions are described. Root systems of <i>E. viminalis</i> plants were inoculated with <i>F. oxysporum</i> in an in vitro model system. Hyphae of <i>F. oxysporum</i> adhered to the outer epidermal cell walls through fibrillar material, and after penetration they spread into the internal tissues. They developed intercellularly and intracellularly in the root cortex and invaded vascular tissues. Papillae were induced, and the host plasma membrane ruptured in colonized cells, causing rapid host tissue and cell damage. Changes in distribution and occurrence of nonesterified and methyl-esterified pectins were evaluated after root colonization by <i>F. oxysporum</i> using two monoclonal antibodies, JIM 5 and JIM 7, respectively. Nonesterified pectin in control roots was mainly localized in the epidermal cell walls and middle lamellae in parenchymal cortex, whereas methyl-esterified pectin accumulated more in primary cell walls of the cortex and phloem. Decreases in immunodetected nonesterified and methyl-esterified pectins were associated with extensive plant tissue degradation after root colonization by the pathogenic fungus. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-06 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo 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://sedici.unlp.edu.ar/handle/10915/141454 |
url |
http://sedici.unlp.edu.ar/handle/10915/141454 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
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dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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