Data/hora: 09/06/2024 19:09:12

Provedor de dados: | 52
País: | Brazil
Título: | Submicroscopical Features of Leaves of Xyris Species
Autores: | Sajo,Maria das Graças; Machado,Silvia Rodrigues.
Data: | 2001-12-01
Ano: | 2001
Palavras-chave: | Xyris; Ultrastructure; Leaf.
Resumo: | The leaf ultrastructure of five Xyris species were examined using scanning electron microscope (SEM), transmission electron microscope (TEM) and histochemical methods. All studied leaves show some features in epidermis and mesophyll, which were of considerable adaptative significance to drought stress. Such features included the occurrence of a pectic layer on the stomatal guard cells and the presence of a network of pectic compounds in the cuticle. Pectic compunds were also in abundance in lamellated walls of the mesophyll cells and on the inner surface of the sclerified cell walls of the vascular bundle sheaths. There were also specialized chlorenchymatous "peg cells" in the mesophyll and drops of phenolic compounds inside the epidermal cells.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000400011
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89132001000400011
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.44 n.4 2001
Fonte: | info:eu-repo/semantics/openAccess