Pseudocercospora griseola Causing Angular Leaf Spot on Phaseolus vulgaris Produces 1,8-Dihydroxynaphthalene-Melanin

Autores
Saparrat, Mario; Fermoselle, Geraldine; Stenglein, Sebastián; Aulicino, Mónica B.; Balatti, Pedro Alberto
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión enviada
Descripción
Pseudocercospora griseolais the causal agent of angular leaf spot of common bean (ALS). It has undergone parallel coevolution with its host and two major groups have been defined, “Andean” (P. griseolaf.griseola) and “Mesoamerican” (P. griseolaf.mesoamericana). The aim of this study was to analyze the nature and the level of the dark pigment synthesized by the representatives of each group. After 21days of incubation on potato dextrose agar medium,P. griseolaf. griseolaisolate S3b developed colonies with diameters of 17.5±1.3mm and concentric rings of pigmentation. Isolate T4 ofP. griseolaf.mesoamericanapresented smaller colonies (9.9±0.3mm) with a uniform dark-gray color. Both isolates, S3b and T4, produced the same pigment, a 1,8-dihydroxynaphthalene-melanin, although different in quantity and structural features as suggested by the IR spectrum. TheP. griseolaf. griseolaisolate S3b had a higher growth rate and melanin content as well as smaller sensitivity to melanin synthesis inhibitors compared to the isolate T4 ofP. griseolaf.mesoamericana. These results suggest a possible link between melanin and growth inP. griseola.
Materia
Agronomía, reproducción y protección de plantas
Melanin
Pseudocercospora griseola
Phytopathogen
Fungus
Dark pigment
Angular leaf spot
Phaseolus vulgaris
“Mesoamerican” group
“Andean” group
Variability
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
CIC Digital (CICBA)
Institución
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
OAI Identificador
oai:digital.cic.gba.gob.ar:11746/7170

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network_acronym_str CICBA
repository_id_str 9441
network_name_str CIC Digital (CICBA)
spelling Pseudocercospora griseola Causing Angular Leaf Spot on Phaseolus vulgaris Produces 1,8-Dihydroxynaphthalene-MelaninSaparrat, MarioFermoselle, GeraldineStenglein, SebastiánAulicino, Mónica B.Balatti, Pedro AlbertoAgronomía, reproducción y protección de plantasMelaninPseudocercospora griseolaPhytopathogenFungusDark pigmentAngular leaf spotPhaseolus vulgaris“Mesoamerican” group“Andean” groupVariability<em>Pseudocercospora griseola</em>is the causal agent of angular leaf spot of common bean (ALS). It has undergone parallel coevolution with its host and two major groups have been defined, “Andean” (<em>P. griseola</em>f.<em>griseola</em>) and “Mesoamerican” (<em>P. griseola</em>f.<em>mesoamericana</em>). The aim of this study was to analyze the nature and the level of the dark pigment synthesized by the representatives of each group. After 21days of incubation on potato dextrose agar medium,<em>P. griseola</em>f<em>. griseola</em>isolate S3b developed colonies with diameters of 17.5±1.3mm and concentric rings of pigmentation. Isolate T4 of<em>P. griseola</em>f.<em>mesoamericana</em>presented smaller colonies (9.9±0.3mm) with a uniform dark-gray color. Both isolates, S3b and T4, produced the same pigment, a 1,8-dihydroxynaphthalene-melanin, although different in quantity and structural features as suggested by the IR spectrum. The<em>P. griseola</em>f<em>. griseola</em>isolate S3b had a higher growth rate and melanin content as well as smaller sensitivity to melanin synthesis inhibitors compared to the isolate T4 of<em>P. griseola</em>f.<em>mesoamericana</em>. These results suggest a possible link between melanin and growth in<em>P. griseola</em>.2009info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://digital.cic.gba.gob.ar/handle/11746/7170enginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/reponame:CIC Digital (CICBA)instname:Comisión de Investigaciones Científicas de la Provincia de Buenos Airesinstacron:CICBA2025-09-29T13:40:23Zoai:digital.cic.gba.gob.ar:11746/7170Institucionalhttp://digital.cic.gba.gob.arOrganismo científico-tecnológicoNo correspondehttp://digital.cic.gba.gob.ar/oai/snrdmarisa.degiusti@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:94412025-09-29 13:40:24.074CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Airesfalse
dc.title.none.fl_str_mv Pseudocercospora griseola Causing Angular Leaf Spot on Phaseolus vulgaris Produces 1,8-Dihydroxynaphthalene-Melanin
title Pseudocercospora griseola Causing Angular Leaf Spot on Phaseolus vulgaris Produces 1,8-Dihydroxynaphthalene-Melanin
spellingShingle Pseudocercospora griseola Causing Angular Leaf Spot on Phaseolus vulgaris Produces 1,8-Dihydroxynaphthalene-Melanin
Saparrat, Mario
Agronomía, reproducción y protección de plantas
Melanin
Pseudocercospora griseola
Phytopathogen
Fungus
Dark pigment
Angular leaf spot
Phaseolus vulgaris
“Mesoamerican” group
“Andean” group
Variability
title_short Pseudocercospora griseola Causing Angular Leaf Spot on Phaseolus vulgaris Produces 1,8-Dihydroxynaphthalene-Melanin
title_full Pseudocercospora griseola Causing Angular Leaf Spot on Phaseolus vulgaris Produces 1,8-Dihydroxynaphthalene-Melanin
title_fullStr Pseudocercospora griseola Causing Angular Leaf Spot on Phaseolus vulgaris Produces 1,8-Dihydroxynaphthalene-Melanin
title_full_unstemmed Pseudocercospora griseola Causing Angular Leaf Spot on Phaseolus vulgaris Produces 1,8-Dihydroxynaphthalene-Melanin
title_sort Pseudocercospora griseola Causing Angular Leaf Spot on Phaseolus vulgaris Produces 1,8-Dihydroxynaphthalene-Melanin
dc.creator.none.fl_str_mv Saparrat, Mario
Fermoselle, Geraldine
Stenglein, Sebastián
Aulicino, Mónica B.
Balatti, Pedro Alberto
author Saparrat, Mario
author_facet Saparrat, Mario
Fermoselle, Geraldine
Stenglein, Sebastián
Aulicino, Mónica B.
Balatti, Pedro Alberto
author_role author
author2 Fermoselle, Geraldine
Stenglein, Sebastián
Aulicino, Mónica B.
Balatti, Pedro Alberto
author2_role author
author
author
author
dc.subject.none.fl_str_mv Agronomía, reproducción y protección de plantas
Melanin
Pseudocercospora griseola
Phytopathogen
Fungus
Dark pigment
Angular leaf spot
Phaseolus vulgaris
“Mesoamerican” group
“Andean” group
Variability
topic Agronomía, reproducción y protección de plantas
Melanin
Pseudocercospora griseola
Phytopathogen
Fungus
Dark pigment
Angular leaf spot
Phaseolus vulgaris
“Mesoamerican” group
“Andean” group
Variability
dc.description.none.fl_txt_mv <em>Pseudocercospora griseola</em>is the causal agent of angular leaf spot of common bean (ALS). It has undergone parallel coevolution with its host and two major groups have been defined, “Andean” (<em>P. griseola</em>f.<em>griseola</em>) and “Mesoamerican” (<em>P. griseola</em>f.<em>mesoamericana</em>). The aim of this study was to analyze the nature and the level of the dark pigment synthesized by the representatives of each group. After 21days of incubation on potato dextrose agar medium,<em>P. griseola</em>f<em>. griseola</em>isolate S3b developed colonies with diameters of 17.5±1.3mm and concentric rings of pigmentation. Isolate T4 of<em>P. griseola</em>f.<em>mesoamericana</em>presented smaller colonies (9.9±0.3mm) with a uniform dark-gray color. Both isolates, S3b and T4, produced the same pigment, a 1,8-dihydroxynaphthalene-melanin, although different in quantity and structural features as suggested by the IR spectrum. The<em>P. griseola</em>f<em>. griseola</em>isolate S3b had a higher growth rate and melanin content as well as smaller sensitivity to melanin synthesis inhibitors compared to the isolate T4 of<em>P. griseola</em>f.<em>mesoamericana</em>. These results suggest a possible link between melanin and growth in<em>P. griseola</em>.
description <em>Pseudocercospora griseola</em>is the causal agent of angular leaf spot of common bean (ALS). It has undergone parallel coevolution with its host and two major groups have been defined, “Andean” (<em>P. griseola</em>f.<em>griseola</em>) and “Mesoamerican” (<em>P. griseola</em>f.<em>mesoamericana</em>). The aim of this study was to analyze the nature and the level of the dark pigment synthesized by the representatives of each group. After 21days of incubation on potato dextrose agar medium,<em>P. griseola</em>f<em>. griseola</em>isolate S3b developed colonies with diameters of 17.5±1.3mm and concentric rings of pigmentation. Isolate T4 of<em>P. griseola</em>f.<em>mesoamericana</em>presented smaller colonies (9.9±0.3mm) with a uniform dark-gray color. Both isolates, S3b and T4, produced the same pigment, a 1,8-dihydroxynaphthalene-melanin, although different in quantity and structural features as suggested by the IR spectrum. The<em>P. griseola</em>f<em>. griseola</em>isolate S3b had a higher growth rate and melanin content as well as smaller sensitivity to melanin synthesis inhibitors compared to the isolate T4 of<em>P. griseola</em>f.<em>mesoamericana</em>. These results suggest a possible link between melanin and growth in<em>P. griseola</em>.
publishDate 2009
dc.date.none.fl_str_mv 2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv https://digital.cic.gba.gob.ar/handle/11746/7170
url https://digital.cic.gba.gob.ar/handle/11746/7170
dc.language.none.fl_str_mv eng
language eng
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http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:CIC Digital (CICBA)
instname:Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
instacron:CICBA
reponame_str CIC Digital (CICBA)
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repository.name.fl_str_mv CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
repository.mail.fl_str_mv marisa.degiusti@sedici.unlp.edu.ar
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