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Abstract:

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.

Registro:

Documento: Artículo
Título:Fungal populations on sunflower (Helianthus annuus) anthosphere and their relation to susceptibility or tolerance to Sclerotinia sclerotiorurn attack
Autor:Rodríguez, M.A.; Venedikian, N.; Godeas, A.
Filiación:Departmento de Ciencias Biologicas, Fac. de Cie. Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, 1428 Buenos Aires, Argentina
Palabras clave: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
Año:2001
Volumen:150
Número:3
Página de inicio:143
Página de fin:150
DOI: http://dx.doi.org/10.1023/A:1010994317980
Título revista:Mycopathologia
Título revista abreviado:Mycopathologia
ISSN:0301486X
CODEN:MYCPA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0301486X_v150_n3_p143_Rodriguez

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Citas:

---------- APA ----------
Rodríguez, M.A., Venedikian, N. & Godeas, A. (2001) . Fungal populations on sunflower (Helianthus annuus) anthosphere and their relation to susceptibility or tolerance to Sclerotinia sclerotiorurn attack. Mycopathologia, 150(3), 143-150.
http://dx.doi.org/10.1023/A:1010994317980
---------- CHICAGO ----------
Rodríguez, M.A., Venedikian, N., Godeas, A. "Fungal populations on sunflower (Helianthus annuus) anthosphere and their relation to susceptibility or tolerance to Sclerotinia sclerotiorurn attack" . Mycopathologia 150, no. 3 (2001) : 143-150.
http://dx.doi.org/10.1023/A:1010994317980
---------- MLA ----------
Rodríguez, M.A., Venedikian, N., Godeas, A. "Fungal populations on sunflower (Helianthus annuus) anthosphere and their relation to susceptibility or tolerance to Sclerotinia sclerotiorurn attack" . Mycopathologia, vol. 150, no. 3, 2001, pp. 143-150.
http://dx.doi.org/10.1023/A:1010994317980
---------- VANCOUVER ----------
Rodríguez, M.A., Venedikian, N., Godeas, A. Fungal populations on sunflower (Helianthus annuus) anthosphere and their relation to susceptibility or tolerance to Sclerotinia sclerotiorurn attack. Mycopathologia. 2001;150(3):143-150.
http://dx.doi.org/10.1023/A:1010994317980