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Abstract
Kikuyu grass (Pennisetum clandestinum) is a perennial plant that belongs to the Poaceae family. In Argentina, it is used in warm areas as tropical pasture, forage and grass in gardens and sports fields. Species of Pythium have a cosmopolitan distribution and are important pathogens of a wide range of plant hosts. In the spring of 2009, a new disease affected areas cultivated with kikuyu grass in different parks located near the city of Buenos Aires. The [ver mas...]
dc.contributor.authorGrijalba, Pablo Enrique
dc.contributor.authorPalmucci, Hemilse E.
dc.contributor.authorGuillin, Eduardo Alejandro
dc.date.accessioned2018-11-29T11:03:33Z
dc.date.available2018-11-29T11:03:33Z
dc.date.issued2017-08
dc.identifier.issn1983-2052
dc.identifier.otherhttps://doi.org/10.1007/s40858-017-0149-1
dc.identifier.urihttps://link.springer.com/article/10.1007/s40858-017-0149-1
dc.identifier.urihttp://hdl.handle.net/20.500.12123/3987
dc.description.abstractKikuyu grass (Pennisetum clandestinum) is a perennial plant that belongs to the Poaceae family. In Argentina, it is used in warm areas as tropical pasture, forage and grass in gardens and sports fields. Species of Pythium have a cosmopolitan distribution and are important pathogens of a wide range of plant hosts. In the spring of 2009, a new disease affected areas cultivated with kikuyu grass in different parks located near the city of Buenos Aires. The symptoms were an evident chlorosis of leaves, which got circular as the affected area expanded, followed by severely rotten roots and blighting. The aim of this study was to identify the causal agent of kikuyu yellows in Argentina. An oomycete was consistently isolated from diseased tissues. The pathogen was identified as Pythium graminicola based on cultural characteristics and the morphology of vegetative and reproductive structures. Phylogenetic analyses were performed based on combined sequence datasets of the internal transcribed spacer of the nuclear rDNA and the beta tubulin gene. Pathogenicity tests were carried out and Koch’s postulates were fulfilled. This is the first report of P. graminicola causing kikuyu yellows in Argentina and in the world.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherSpringeres_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceTropical plant pathology 42 (4) : 284-290 (Agosto 2017)es_AR
dc.subjectPythium graminicolaes_AR
dc.subjectPennisetum clandestinumes_AR
dc.subjectPlantas Perennes
dc.subjectPerennialseng
dc.subjectIdentificación
dc.subjectIdentificationeng
dc.subject.otherKikuyues_AR
dc.subject.otherPhylogenetic Analyseseng
dc.subject.otherAnálisis Filogenéticoes_AR
dc.subject.otherArgentina
dc.titleIdentification and characterization of Pythium graminicola, causal agent of kikuyu yellows in Argentinaes_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenInstituto de Genéticaes_AR
dc.description.filFil: Grijalba, Pablo E. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fitopatología; Argentinaes_AR
dc.description.filFil: Palmucci, Hemilse E. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fitopatología; Argentinaes_AR
dc.description.filFil: Guillin, Eduardo Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentinaes_AR
dc.subtypecientifico


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