Publication:
Etiología de la malformación del tejido vegetativo del mango (Mangifera indica L.) en Puerto Rico

dc.contributor.advisor Segarra-Carmona, Alejandro E.
dc.contributor.author Nieves-Méndez, Nisael
dc.contributor.college College of Agricultural Sciences en_US
dc.contributor.committee Rivera Vargas, Lydia I.
dc.contributor.committee Abreu Rodríguez, Edwin
dc.contributor.department Department of Crops and Agro-Environmental Sciences en_US
dc.contributor.representative Berrios Ortíz, Angel
dc.date.accessioned 2018-10-25T13:28:36Z
dc.date.available 2018-10-25T13:28:36Z
dc.date.issued 2005
dc.description.abstract Recently, mango seedlings (Mangifera indica L.) showing symptoms of mango malformation syndrome were detected Puerto Rico. Typical symptoms were: mottled and deformed leaves, defoliation, and loss of apical dominance. The objective of the present study was to identify the causal agent of the symptoms previously described. Diagnose molecular tests were made to detect phytoplasms and virus. Two species of mites were associated with the symptoms: Polyphagotarsonemus latus Banks (Acari: Tarsonemidae) and Neocalacarus mangiferae Channabasavanna (Acari: Eriophyidae). Tests for phytoplasms and virus resulted all negative. The findings indicate that P. latus causes leaf deformation, which possibly causes defoliation, and development of lateral buds. No fungi were isolated from these seedlings. In contrast, N. mangiferae also caused the development of lateral buds, but did not induce leaf deformation. Fusarium lateritium was isolated associated to the symptoms and confirmed by pathogenicity test as a pathogen in mango seedlings causing cankers and lateral buds. en_US
dc.description.abstract En Puerto Rico, se detectó la presencia del síndrome de malformación en semilleros de árboles de mangó (Mangifera indica L.). Los síntomas observados fueron: deformación y moteado en las hojas, defoliación y perdida de dominancia apical. El objetivo de éste estudio fue identificar el agente causal de los síntomas antes descritos. Se realizaron pruebas de diagnóstico a nivel molecular para detectar fitoplasmas y virus. Además se identificaron dos especies de ácaros, Polyphagotarsonemus latus Banks (Acari: Tarsonemidae) y Neocalacarus mangiferae Channabasavanna (Acari: Eriophyidae), asociados a los daños. Las pruebas para detectar virus y fitoplasmas resultaron negativas. Se observó que P. latus causa deformación de las hojas, defoliación y desarrollo de brotes laterales. En ensayos realizados con N. mangiferae se observó desarrollo de brotes laterales y no hubo defoliación. Se aisló Fusarium lateritium asociado a éstos daños y mediante pruebas de patogenicidad se corroboró que es patógeno en árboles de mangó en etapa de semillero causando cancros y brotes laterales. en_US
dc.description.graduationYear 2005 en_US
dc.identifier.uri https://hdl.handle.net/20.500.11801/1058
dc.language.iso es en_US
dc.rights.holder (c) 2005 Nisael Nieves Méndez en_US
dc.rights.license All rights reserved en_US
dc.subject Fitoplasmas en_US
dc.subject Síndrome de malformación en_US
dc.subject Dominancia apical en_US
dc.subject.lcsh Mango--Puerto Rico--Diseases and pests--Identification en_US
dc.title Etiología de la malformación del tejido vegetativo del mango (Mangifera indica L.) en Puerto Rico en_US
dc.type Thesis en_US
dspace.entity.type Publication
thesis.degree.discipline Crop Protection en_US
thesis.degree.level M.S. en_US
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