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	Provedor de dados Anais da ABC (AABC) (2) Autor Dane,Feruzan (2) Ekici,Nuran (2) Olgun,Göksel (1) Palavra-chave Ultrastructure (2) Amaryllidaceae (1) Anther wall (1) In vivo (1) Leucojum aestivum (1) Mimulus (1) Pollen tube (1) Sporogenous tissue (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2012 (1) 2009 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Ultrastructural studies on the sporogenous tissue and anther wall of Leucojum aestivum (amaryllidaceae) in different developmental stages Anais da ABC (AABC) Ekici,Nuran; Dane,Feruzan. In this study, ultrastructures of anther wall and sporogenous tissue of Leucojum aestivum were investigated during different developmental stages. Cytomictic channels were seen between pollen mother cells during prophase I. Polar distribution was described in the organelle content of pollen mother cells and microspores in early phases of microsporogenesis and also in pollen mitosis. Active secretion was observed in tapetal cells. Previous reports about developmental stages of male gametophyte were compared with the results of this study. Tipo: Info:eu-repo/semantics/article Palavras-chave: Leucojum aestivum; Amaryllidaceae; Ultrastructure; Sporogenous tissue; Anther wall. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400010 Ultrastructural features of Mimulus aurantiacus (Scrophulariaceae) pollen tubes in vivo Anais da ABC (AABC) Ekici,Nuran; Dane,Feruzan; Olgun,Göksel. The aim of this study is to give information on ultrastructure of in vivo pollen tubes of Mimulus aurantiacus which were collected from the Botanical Garden of the University of California at Berkeley. Materials were prepared according to electron microscopy methods and examined under Zeiss electron microscope. Four zones were examined in the pollen tubes of Mimulus aurantiacus. APICAL ZONE: Mitochondria, smooth endoplasmic reticulum, rough endoplasmic reticulum, dictyosomes and secretory vesicles were observed. SUBAPICAL ZONE: This area contained abundant rough endoplasmic reticulum and occasionally some smooth endoplasmic reticulum. The polysomes, mitochondria, proplastids that contain starch, small vacuoles and a few lipid bodies were detected. NUCLEAR... Tipo: Info:eu-repo/semantics/article Palavras-chave: In vivo; Mimulus; Pollen tube; Ultrastructure. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000100005 Registros recuperados: 2 Primeira ... 1 ... Última

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