Structural, histochemical and photosynthetic profiles of galls induced by Eugeniamyia dispar (Diptera: Cecidomyiidae) on the leaves of Eugenia uniflora (Myrtaceae)

 

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Detalles Bibliográficos
Autores: Rezende, Uiara Costa, Franco Pinheiro Moreira, Ana Silvia, Kuster, Vinícius Coelho, de Oliveira, Denis Coelho
Formato: artículo original
Estado:Versión publicada
Fecha de Publicación:2018
Descripción:Gall-inducing insects manipulate the structural, histochemical and physiological profiles of host-plant tissues to develop galls. We evaluated galls induced by Eugeniamyia dispar on the leaves of Eugenia uniflora in an attempt to answer the following questions: (i) How does this gall-inducing insect change the structural and histochemical profiles of the host-plant organ? (ii) Despite structural changes, can gall tissues maintain photosynthetic activity? Starch, proteins, reducing sugars and reactive oxygen species were detected mainly in the nutritive tissue surrounding the larval chamber. Despite structural changes, the galls induced by E. dispar on E. uniflora retain chlorophyllous tissue, although its amount and photosynthetic activity are less than that of non-galled leaves. This reduced photosynthetic activity, in association with the presence of large intercellular spaces, could improve gas diffusion and, consequently, avoid hypoxia and hypercarbia in gall tissue.
País:Portal de Revistas UCR
Institución:Universidad de Costa Rica
Repositorio:Portal de Revistas UCR
Lenguaje:Inglés
OAI Identifier:oai:portal.ucr.ac.cr:article/32531
Acceso en línea:https://revistas.ucr.ac.cr/index.php/rbt/article/view/32531
Palabra clave:Chlorophyll a fluorescence
photosynthetic pigments
protein storage
reactive oxygen species
tissue gradients.
fluorescencia de la clorofila a
pigmentos fotosintéticos
almacenamiento de proteínas
especies reactivas de oxígeno
gradientes de tejidos.