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dc.creatorKloepper, J. W.es_ES
dc.creatorBustamante, E.es_ES
dc.creatorPolston, J. E.es_ES
dc.creatorUmaña Villalobos, Gerardoes_ES
dc.creatorSaborío Pozuelo, Franciscoes_ES
dc.creatorSánchez Chacón, Etheles_ES
dc.date.accessioned2011-08-21T04:05:11Zes_ES
dc.date.available2011-08-21T04:05:11Zes_ES
dc.date.issued2010es_ES
dc.identifier.citationhttp://apsjournals.apsnet.org/doi/pdf/10.1094/PDIS-94-8-0940es_ES
dc.identifier.issn0191-2917es_ES
dc.identifier.urihttp://hdl.handle.net/10669/519es_ES
dc.description.abstractA syndrome has been recognized on leatherleaf fern (Rumohra adiantiformis) in Costa Rica for many years that causes widespread damage but has not been described in the literature. A full description of the syndrome, termed fern distortion syndrome (FDS), is reported here, along with evidence that FDS is a new disease and that it is associated with endophytic fluorescent pseudomonads but not with any other major groups of pathogens or pests. The main aboveground symptoms of FDS are twisting and distortions of fronds, which make the fronds unmarketable. In advanced cases of FDS, fronds are often thickened, new frond growth ceases or slows dramatically, and uneven sporulation is apparent on the underside of fronds. Symptoms of FDS belowground are reduced diameter of rhizomes and reduced overall root mass. The incidence of FDS in Costa Rica was typically over 80%, and severity typically ranged from 1.26 to 2.48 using a 0 to 3 rating scale in fields propagated vegetatively with rhizomes from fields with FDS. In contrast, in three fields planted 1.5 to 4 years previously with rhizomes derived from tissue culture, incidence and severity were markedly lower: 23 to 34% and 0.24 to 0.36, respectively. Paired sampling of symptomatic and asymptomatic plants revealed significantly greater populations of fluorescent pseudomonads inside rhizomes of symptomatic plants.es_ES
dc.language.isoen_USes_ES
dc.publisherPlant Disease, vol. 94, n. 8, 2010es_ES
dc.subjectSyndrome of Leatherleafes_ES
dc.subjectCIEMICes_ES
dc.subjectRumohra adiantiformises_ES
dc.subjectHelechoses_ES
dc.subjectCosta Ricaes_ES
dc.titleFern Distortion Syndrome of Leatherleaf Fern in Costa Rica: Symptoms, Incidence, and Severityes_ES
dc.typeArtículo científicoes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Biología


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