Consulta: subjectFacets:"Seed-coat"
Registros recuperados: 2
Data/hora: 14/06/2024 10:46:25

Remarks Using the SEM method Species Seeds of Gentiana occurring in Turkey
Provedor de dados: 87
Autores: ALÇITEPE,E.; ERKEN,S.; GÜLBAG,F.; ÖZZAMBAK,M.E.
ABSTRACT Seeds of eleven perennial Gentiana collected from Turkey were analyzed using the SEM method. Other species excluding G. septemfida, G. boissieri, G. gelida were studied for the first time. They were identified and compared in terms of seed characteristics and surface ornamentations. Major characteristics including the outer periclinal walls of testa, sculpting of inner periclinal walls, seed shape, seed and testa cell, wing cell size, thickness of testa wall and seed shape have been proposed for Turkey Gentiana. They are divided into different types, such as no wing, chalazal wing, incomplete discoid wing, complete discoid wing according to the outer periclinal walls of testa. Considering primary sculpting of seeds, irregularly striate and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gentiana; Seed-coat; Scanning electron microscope; Turkey.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100204

Anatomy of the pericarp and seed-coat of Lithraea molleoides (Vell.) Engl. (Anacardiaceae) with taxonomic notes
Provedor de dados: 52
Autores: Carmello-Guerreiro,Sandra Maria; Paoli,Adelita Aparecida Sartori.
The aim of the present work was to record anatomical data for the fruit and seed of Lithraea molleoides (Vell.) Engl, and compare the results with those for L. brasiliensis and the genera Schinus and Rhus. The L. molleoides fruit was a drupe with a friable and lignified exocarp. The mesocarp was parenchymatous with large secretory canals associated with vascular bundles. The endocarp consisted of four layers: an outer layer of polyhedral cells with prismatic crystals of calcium oxalate, and three inner layers of sclereids in a palisade arrangement. The ovule was anatropous, unitegmic, and crassinucelate. In the chalazal region, a cup-like zone of tanniniferous parenchymal cells formed the hypostase. The developing seed had a circinotropous-like shape, that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anacardiaceae; Anatomy; Pericarp; Seed-coat.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000500013