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	Provedor de dados Acta Botanica (1) Rev. Bras. Bot. (1) Autor Miguel,Emilio de Castro (2) Barros,Claudia Franca (1) Cunha,Maura Da (1) Cunha,Maura da (1) Gomes,Valdirene Moreira (1) Klein,Denise Espellet (1) Miguens,Flavio Costa (1) Oliveira,Marco Antonio de (1) Pireda,Saulo (1) Zottich,Umberto (1) Mais... Palavra-chave Colleters (1) Light and electron microscopy (1) Outer cell wall (1) Plant cell ultrastructure (1) Programmed cell dead (1) Rubiaceae (1) Secretion accumulation site (1) Secretion mechanism (1) Secretory structure (1) Secretory structures (1) Secretory tissues (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2017 (1) 2010 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Ultrastructure of secretory and senescence phase in colleters of Bathysa gymnocarpa and B. stipulata (Rubiaceae) Rev. Bras. Bot. Miguel,Emilio de Castro; Klein,Denise Espellet; Oliveira,Marco Antonio de; Cunha,Maura da. (Ultrastructure of secretory and senescence phase in colleters of Bathysa gymnocarpa and B. stipulata (Rubiaceae)). Colleters are secretory structures formed by a parenchymatic axis with vascular bundles, bound by a layer of secretory palisade-like epidermis. Some studies regarding the structure of colleters have focused on secretory cells structure, but not distinguished the secretory and senescent phases. Generally, in mucilage-secreting cells such as colleters, the endoplasmic reticulum and Golgi apparatus are involved in secretion production and transport. In these study, colleters structure of Bathysa gymnocarpa K. Schum. and B. stipulata (Vell.) C. Presl. (Rubiaceae) were determined in two phases: a secretory phase and a senescence one. Samples were... Tipo: Info:eu-repo/semantics/article Palavras-chave: Light and electron microscopy; Plant cell ultrastructure; Programmed cell dead; Secretory structure. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042010000300006 Outer cell wall structure and the secretion mechanism of colleters of Bathysa nicholsonii K. Schum. (Rubiaceae) Acta Botanica Miguel,Emilio de Castro; Pireda,Saulo; Barros,Claudia Franca; Zottich,Umberto; Gomes,Valdirene Moreira; Miguens,Flavio Costa; Cunha,Maura Da. ABSTRACT Secretory structures are formed by many types of plants and are present on numerous different organs. Among the many types of known secretory structures, colleters are predominant on plants of the Rubiaceae. One remarkable characteristic of secretory tissues is the export of exudates; however, the precise mechanism involved in this process is still unclear. To better understand the mechanisms of exudate externalization it is necessary to understand the ultrastructure and dynamics of the outer cell wall of the secretory structures during the secretory process, and so we investigated these aspects of the colleters of Bathysa nicholsonii. The outer cell wall (OCW) exhibits multiple layers: a basal polysaccharide rich layer; a cuticular membrane,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Colleters; Outer cell wall; Rubiaceae; Secretion accumulation site; Secretion mechanism; Secretory structures; Secretory tissues. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000300411 Registros recuperados: 2 Primeira ... 1 ... Última

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