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
- Institución
- Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
- OAI Identificador
- oai:digital.cic.gba.gob.ar:11746/7170
Ver los metadatos del registro completo
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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 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess 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 |
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CIC Digital (CICBA) |
collection |
CIC Digital (CICBA) |
instname_str |
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires |
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CICBA |
institution |
CICBA |
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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1844618622140416000 |
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13.070432 |