Fungal populations on sunflower (Helianthus annuus) anthosphere and their relation to susceptibility or tolerance to Sclerotinia sclerotiorurn attack

Analysis of the fungal flora from different floret parts of various sunflower (Helianthus annuus) varieties showed that there are differences in both fungal species and frequency, depending on whether the sunflower variety is susceptible (SV) or tolerant (TV) to attack of the flower heads by the asc...

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Autores principales: Rodríguez, María Alejandra, Venedikian, Nadia, Godeas, Alicia Margarita
Publicado: 2001
Materias:
Biocontrol agents
Fungal flora
Sclerotinia sclerotiorum
Susceptible and tolerant varieties of sunflower
ascospore
cultivar
defense response
fungal infection
genetic susceptibility
genetic variability
microbiological phenomena and functions
plant defense
plant fungus interaction
Ascomycota
Helianthus
Models, Biological
Pest Control, Biological
Plant Components
Plant Diseases
Fungi
Helianthus annuus
Sclerotinia
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0301486X_v150_n3_p143_Rodriguez
http://hdl.handle.net/20.500.12110/paper_0301486X_v150_n3_p143_Rodriguez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_0301486X_v150_n3_p143_Rodriguez
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spelling paper:paper_0301486X_v150_n3_p143_Rodriguez2023-06-08T15:28:03Z Fungal populations on sunflower (Helianthus annuus) anthosphere and their relation to susceptibility or tolerance to Sclerotinia sclerotiorurn attack Rodríguez, María Alejandra Venedikian, Nadia Godeas, Alicia Margarita Biocontrol agents Fungal flora Sclerotinia sclerotiorum Susceptible and tolerant varieties of sunflower ascospore cultivar defense response fungal infection genetic susceptibility genetic variability microbiological phenomena and functions plant defense plant fungus interaction Ascomycota Helianthus Models, Biological Pest Control, Biological Plant Components Plant Diseases Fungi Helianthus Helianthus annuus Sclerotinia Sclerotinia sclerotiorum Analysis of the fungal flora from different floret parts of various sunflower (Helianthus annuus) varieties showed that there are differences in both fungal species and frequency, depending on whether the sunflower variety is susceptible (SV) or tolerant (TV) to attack of the flower heads by the ascomycete pathogen Sclerotinia sclerotiorum. The sunflower varieties analyzed were SV: HA 300 and Z 20028, and TV: HA 302, Z AV 8410 and Z 30629. The isolates showed different "in vitro" behavior as biocontrol agents. The most common types of interaction with Sclerotinia sclerotiorum were D2 and D2+ (hyphal contact) for isolates from SV and TV, while some of the isolates from TV displayed antibiosis. The microorganisms that colonize TV florets play a part in an indirect mechanism that protects flowers from ascospore germination and pathogen growth. Fil:Rodríguez, M.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Venedikian, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Godeas, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2001 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0301486X_v150_n3_p143_Rodriguez http://hdl.handle.net/20.500.12110/paper_0301486X_v150_n3_p143_Rodriguez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Biocontrol agents
Fungal flora
Sclerotinia sclerotiorum
Susceptible and tolerant varieties of sunflower
ascospore
cultivar
defense response
fungal infection
genetic susceptibility
genetic variability
microbiological phenomena and functions
plant defense
plant fungus interaction
Ascomycota
Helianthus
Models, Biological
Pest Control, Biological
Plant Components
Plant Diseases
Fungi
Helianthus
Helianthus annuus
Sclerotinia
Sclerotinia sclerotiorum
spellingShingle Biocontrol agents
Fungal flora
Sclerotinia sclerotiorum
Susceptible and tolerant varieties of sunflower
ascospore
cultivar
defense response
fungal infection
genetic susceptibility
genetic variability
microbiological phenomena and functions
plant defense
plant fungus interaction
Ascomycota
Helianthus
Models, Biological
Pest Control, Biological
Plant Components
Plant Diseases
Fungi
Helianthus
Helianthus annuus
Sclerotinia
Sclerotinia sclerotiorum
Rodríguez, María Alejandra
Venedikian, Nadia
Godeas, Alicia Margarita
Fungal populations on sunflower (Helianthus annuus) anthosphere and their relation to susceptibility or tolerance to Sclerotinia sclerotiorurn attack
topic_facet Biocontrol agents
Fungal flora
Sclerotinia sclerotiorum
Susceptible and tolerant varieties of sunflower
ascospore
cultivar
defense response
fungal infection
genetic susceptibility
genetic variability
microbiological phenomena and functions
plant defense
plant fungus interaction
Ascomycota
Helianthus
Models, Biological
Pest Control, Biological
Plant Components
Plant Diseases
Fungi
Helianthus
Helianthus annuus
Sclerotinia
Sclerotinia sclerotiorum
description Analysis of the fungal flora from different floret parts of various sunflower (Helianthus annuus) varieties showed that there are differences in both fungal species and frequency, depending on whether the sunflower variety is susceptible (SV) or tolerant (TV) to attack of the flower heads by the ascomycete pathogen Sclerotinia sclerotiorum. The sunflower varieties analyzed were SV: HA 300 and Z 20028, and TV: HA 302, Z AV 8410 and Z 30629. The isolates showed different "in vitro" behavior as biocontrol agents. The most common types of interaction with Sclerotinia sclerotiorum were D2 and D2+ (hyphal contact) for isolates from SV and TV, while some of the isolates from TV displayed antibiosis. The microorganisms that colonize TV florets play a part in an indirect mechanism that protects flowers from ascospore germination and pathogen growth.
author Rodríguez, María Alejandra
Venedikian, Nadia
Godeas, Alicia Margarita
author_facet Rodríguez, María Alejandra
Venedikian, Nadia
Godeas, Alicia Margarita
author_sort Rodríguez, María Alejandra
title Fungal populations on sunflower (Helianthus annuus) anthosphere and their relation to susceptibility or tolerance to Sclerotinia sclerotiorurn attack
title_short Fungal populations on sunflower (Helianthus annuus) anthosphere and their relation to susceptibility or tolerance to Sclerotinia sclerotiorurn attack
title_full Fungal populations on sunflower (Helianthus annuus) anthosphere and their relation to susceptibility or tolerance to Sclerotinia sclerotiorurn attack
title_fullStr Fungal populations on sunflower (Helianthus annuus) anthosphere and their relation to susceptibility or tolerance to Sclerotinia sclerotiorurn attack
title_full_unstemmed Fungal populations on sunflower (Helianthus annuus) anthosphere and their relation to susceptibility or tolerance to Sclerotinia sclerotiorurn attack
title_sort fungal populations on sunflower (helianthus annuus) anthosphere and their relation to susceptibility or tolerance to sclerotinia sclerotiorurn attack
publishDate 2001
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0301486X_v150_n3_p143_Rodriguez
http://hdl.handle.net/20.500.12110/paper_0301486X_v150_n3_p143_Rodriguez
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AT venedikiannadia fungalpopulationsonsunflowerhelianthusannuusanthosphereandtheirrelationtosusceptibilityortolerancetosclerotiniasclerotiorurnattack
AT godeasaliciamargarita fungalpopulationsonsunflowerhelianthusannuusanthosphereandtheirrelationtosusceptibilityortolerancetosclerotiniasclerotiorurnattack
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