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Effects of changes in micro-weather conditions on structural features, total protein and carbohydrate content in leaves of the Atlantic rain forest tree golden trumpet (Tabebuia chrysotricha).
Moura, B B; Almeida, P H; Balliana, A G; Cobos, J Y G; Erbano, M; do Prado, K A; Vudala, S M; Wosch, L; Pereira-Netto, A B.
Afiliación
  • Moura BB; Department of Botany - SCB, Universidade Federal do Paraná - UFPR, CP 19031, Curitiba, PR, Brazil.
  • Almeida PH; Department of Botany - SCB, Universidade Federal do Paraná - UFPR, CP 19031, Curitiba, PR, Brazil.
  • Balliana AG; Department of Botany - SCB, Universidade Federal do Paraná - UFPR, CP 19031, Curitiba, PR, Brazil.
  • Cobos JYG; Department of Botany - SCB, Universidade Federal do Paraná - UFPR, CP 19031, Curitiba, PR, Brazil.
  • Erbano M; Department of Botany - SCB, Universidade Federal do Paraná - UFPR, CP 19031, Curitiba, PR, Brazil.
  • do Prado KA; Department of Botany - SCB, Universidade Federal do Paraná - UFPR, CP 19031, Curitiba, PR, Brazil.
  • Vudala SM; Department of Botany - SCB, Universidade Federal do Paraná - UFPR, CP 19031, Curitiba, PR, Brazil.
  • Wosch L; Department of Botany - SCB, Universidade Federal do Paraná - UFPR, CP 19031, Curitiba, PR, Brazil.
  • Pereira-Netto AB; Department of Botany - SCB, Universidade Federal do Paraná - UFPR, CP 19031, Curitiba, PR, Brazil.
Braz J Biol ; 77(3): 535-541, 2017.
Article en En | MEDLINE | ID: mdl-27783764
Golden trumpet, Tabebuia chrysotricha, is a native tree from the Brazilian Atlantic rain forest, with a broad latitudinal distribution. In this study, we investigated the potential effects of short-term changes in micro-weather conditions on structural features, and total protein and carbohydrate content of golden trumpet leaves, using structural and histochemical approaches. Leaves were harvested in four different micro-weather conditions: 1. Afternoon, after a hot, sunny day; 2. at dawn, after a previously hot, sunny day; 3. at noon, of a hot, sunny day; and 4. at noon, of a cold, cloudy day. Leaflets exposed to low light irradiance showed flattened chloroplasts, uniformly distributed within the cells, throughout the palisade parenchyma. Conversely, leaflets exposed to high light irradiance presented flattened and rounded chloroplasts, in the upper and lower palisade parenchyma cells, respectively. The strongest protein staining was found for leaves harvested at the coldest period, whereas the weakest protein staining was found for leaves harvested after a hot, sunny day. The largest and most numerous starch grains were found for leaves harvested in the afternoon, after a hot, sunny day. Conversely, the smallest and less numerous starch grains were found for leaves harvested at dawn. Analysis of the data reported herein suggests that the leaflet responses to transient changes in micro-weather conditions are likely to contribute to the golden trumpet successful establishment in the broad latitudinal distribution in which the species is found.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas de Plantas / Tiempo (Meteorología) / Hojas de la Planta / Tabebuia / Metabolismo de los Hidratos de Carbono País/Región como asunto: America do sul / Brasil Idioma: En Revista: Braz J Biol Asunto de la revista: BIOLOGIA Año: 2017 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Brasil
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteínas de Plantas / Tiempo (Meteorología) / Hojas de la Planta / Tabebuia / Metabolismo de los Hidratos de Carbono País/Región como asunto: America do sul / Brasil Idioma: En Revista: Braz J Biol Asunto de la revista: BIOLOGIA Año: 2017 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Brasil