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dc.contributor.author
Zambelli, Andres Daniel
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dc.contributor.author
Mancebo, María F.
dc.contributor.author
Bazzalo, María E.
dc.contributor.author
Reid, Roberto J.
dc.contributor.author
Sanchez, María C.
dc.contributor.author
Kontz, Brian J.
dc.contributor.author
Mathew, Febina M.
dc.date.available
2022-09-06T13:02:56Z
dc.date.issued
2021-01
dc.identifier.citation
Zambelli, Andres Daniel; Mancebo, María F.; Bazzalo, María E.; Reid, Roberto J.; Sanchez, María C.; et al.; Six species of Diaporthe associated with Phomopsis stem canker of sunflower in southern Pampean region of Argentina; American Phytopathological Society; Plant Health Progess; 22; 2; 1-2021; 136-142
dc.identifier.uri
http://hdl.handle.net/11336/167523
dc.description.abstract
A survey of 67 commercial fields in 19 locations was conducted in the southern Pampean region of Argentina for Phomopsis stem canker of sunflower (Helianthus annuus L.) between 2014 and 2019. A total of 210 plants having typical symptoms of Phomopsis stem canker were randomly sampled, and fungal isolation was performed. Of the 187 isolates of Diaporthe that were recovered, 94% of the isolates showed morphological characteristics similar to D. helianthi, 3% to D. gulyae, 1% to D. caulivora, 1% to D. sojae, 0.5% to D. kongii, and 0.5% to D. longicolla. Following morphological characterization, the identity of the six morpho-species was confirmed by phylogenetic analyses of b-tubulin, translation elongation factor 1-a, and internal transcribed spacer gene regions. Koch’s postulates were completed for the six fungi by inoculating one susceptible sunflower hybrid with one isolate each of the six species of Diaporthe using the stem-wound inoculation method. Seven days postinoculation, significant differences in disease severity were observed between the six isolates (P < 0.0001), with D. helianthi and D. gulyae isolates causing significantly greater disease severity. To our knowledge, this is the first report of D. kongii, D. longicolla, D. caulivora, and D. sojae associated with Phomopsis stem canker of sunflower in Argentina.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Phytopathological Society
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ARGENTINA
dc.subject
DIAPORTHE
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PHOMOPSIS STEM CANKER
dc.subject
SUNFLOWER
dc.subject.classification
Agronomía, reproducción y protección de plantas
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dc.subject.classification
Agricultura, Silvicultura y Pesca
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dc.subject.classification
CIENCIAS AGRÍCOLAS
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dc.title
Six species of Diaporthe associated with Phomopsis stem canker of sunflower in southern Pampean region of Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-08-16T20:41:20Z
dc.identifier.eissn
1535-1025
dc.journal.volume
22
dc.journal.number
2
dc.journal.pagination
136-142
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Zambelli, Andres Daniel. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina
dc.description.fil
Fil: Mancebo, María F.. Advanta Semillas S.A.I.C.; Argentina
dc.description.fil
Fil: Bazzalo, María E.. Advanta Semillas S.A.I.C.; Argentina
dc.description.fil
Fil: Reid, Roberto J.. Advanta Semillas S.A.I.C.; Argentina
dc.description.fil
Fil: Sanchez, María C.. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
dc.description.fil
Fil: Kontz, Brian J.. South Dakota State University; Estados Unidos
dc.description.fil
Fil: Mathew, Febina M.. South Dakota State University; Estados Unidos
dc.journal.title
Plant Health Progess
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1094/PHP-07-20-0059-S
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://apsjournals.apsnet.org/doi/10.1094/PHP-07-20-0059-S
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