Pollen, tapetum, and orbicule development in Colletia paradoxa and Discaria americana [Rhamnaceae]

Tapetum, orbicule, and pollen grain ontogeny in Colletia paradoxa and Discaria americana were studied with transmission electron microscopy [TEM]. The ultrastructural changes observed during the different stages of development in the tapetal cells and related to orbicule and pollen grain formation a...

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Detalles Bibliográficos
Autor principal: Gotelli, Marina María
Otros Autores: Galati, Beatriz Gloria, Medan, Diego
Formato: Artículo
Lenguaje:Inglés
Materias:
LIPID
GELATIN
GLYCEROL
CELL MATURATION
CELL STRUCTURE
CELL WALL
COLLETIA PARADOXA
CYTOPLASM
DISCARIA AMERICANA
GOLGI COMPLEX
MICROSPORE
MITOCHONDRION
ORBICULE
PLANT CELL
PLANT DEVELOPMENT
PLANT STRUCTURES
POLLEN
POLLEN MOTHER CELL
RHAMNACEAE
ROUGH ENDOPLASMIC RETICULUM
TAPETUM
TRANSMISSION ELECTRON MICROSCOPY
CEREAL
CHEMISTRY
METABOLISM
METHODOLOGY
PHYSIOLOGY
PLANT PHYSIOLOGY
SPECIES DIFFERENCE
CEREALS
ENDOPLASMIC RETICULUM, ROUGH
LIPIDS
MICROSCOPY, ELECTRON, TRANSMISSION
PLANT PHYSIOLOGICAL PHENOMENA
SPECIES SPECIFICITY
Acceso en línea:http://ri.agro.uba.ar/files/download/articulo/2012Gotelli2.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
Biblioteca Central (FAUBA) de Universidad de Buenos Aires
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520 |a Tapetum, orbicule, and pollen grain ontogeny in Colletia paradoxa and Discaria americana were studied with transmission electron microscopy [TEM]. The ultrastructural changes observed during the different stages of development in the tapetal cells and related to orbicule and pollen grain formation are described. The proorbicules have the appearance of lipid globule, and their formation is related to the endoplasmic reticulum of rough type [ERr]. This is the first report on the presence of orbicules in the family Rhamnaceae. Pollen grains are shed at the bicellular stage. 
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653 0 |a DISCARIA AMERICANA 
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773 |t The Scientific World Journal  |g Vol.2012 (2012), p.1-8 
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900 |a CYTOPLASM 
900 |a DISCARIA AMERICANA 
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