Data/hora: 01/06/2024 02:15:34

Provedor de dados: | 52
País: | Brazil
Título: | The influence of light intensity on anatomical structure and pigment contents of Tradescantia pallida (Rose) Hunt. cv. purpurea Boom (Commelinaceae) leaves
Autores: | Paiva,Élder Antonio Sousa; Isaias,Rosy Mary dos Santos; Vale,Fernando Henrique Aguiar; Queiroz,Cristina Generosa de Senna.
Data: | 2003-12-01
Ano: | 2003
Palavras-chave: | Leaf anatomy; Light intensity; Chlorophyll; Carotenoids; Anthocyanin; Tradescantia.
Resumo: | The aim of this work was to study the effects of five different light intensities on the anatomical structure and on the pigment contents in leaves of Tradescantia pallida cv. purpurea. Once light intensity became lower, the thickness of leaf lamina and mesophyll were reduced. Adjustments in light-harvesting antenna size were observed: an increase in chlorophyll a + b/carotenoids ratio at low-light growth conditions. There was a strong positive linear correlation between the light intensity values and anthocyanin contents. Hence, T. pallida cv. purpurea acclimation to distinct environmental conditions might be related to its capacity of altering structurally and physiologically its phenotype.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000400017
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89132003000400017
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.46 n.4 2003
Fonte: | info:eu-repo/semantics/openAccess