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Abstract:

Flowers of Prunus persica (L.) Batch. cv. Forastero have an orange toral nectary. The nectariferous tissue was formed by densely packed parenchyma cells (secretory cells) and an epidermis with hairs and modified stomata. The epidermal cells were highly vacuolated with a striated cuticle. The ultrastructure of these cells contained a cytoplasm with endoplasmic reticulum, plastids, mitochondria and dictyosomes. Sub-epidermal cells were barely vacuolated and their ultrastructure was similar to that of the epidermal cells. Differences were observed only in the endoplasmic reticulum, which is organized in a parallel configuration. Plasmodesmata were found between adjacent secretory cells and between secretory and epidermal cells. An electron dense secretion occurred in the intercellular spaces and between the external tangential wall and the cuticle of the epidermal cells. According to the ultrastructural observations, the sugar solution could be passed through the symplast or the apoplast. The nectar could be exuded from the stomata and the microchannels of the cuticle covering the epidermal cells.

Registro:

Documento: Artículo
Título:Floral nectary ultrastructure of Prunus persica (L.) Batch cv. Forastero (Newcomer), an Argentine peach
Autor:Radice, S.; Galati, B.G.
Filiación:CEFYBO-CONICET, Buenos Aires, Argentina
Depto. de Biodiversidad y Biol. Exp., Fac. de Ciencias Exactas y Naturales, UBA, Buenos Aires, Argentina
CEFYBO-CONICET, C1414DEM, Serrano 669, Buenos Aires, Argentina
Palabras clave:Floral nectary; Peach; Prunus persica cv. Forastero; Ultrastructure; Argentina (fish); Prunus; Prunus persica; Prunus persica
Año:2003
Volumen:238
Número:1-4
Página de inicio:23
Página de fin:32
DOI: http://dx.doi.org/10.1007/s00606-002-0279-9
Título revista:Plant Systematics and Evolution
Título revista abreviado:Plant Syst. Evol.
ISSN:03782697
CODEN:ESPFB
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03782697_v238_n1-4_p23_Radice

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Citas:

---------- APA ----------
Radice, S. & Galati, B.G. (2003) . Floral nectary ultrastructure of Prunus persica (L.) Batch cv. Forastero (Newcomer), an Argentine peach. Plant Systematics and Evolution, 238(1-4), 23-32.
http://dx.doi.org/10.1007/s00606-002-0279-9
---------- CHICAGO ----------
Radice, S., Galati, B.G. "Floral nectary ultrastructure of Prunus persica (L.) Batch cv. Forastero (Newcomer), an Argentine peach" . Plant Systematics and Evolution 238, no. 1-4 (2003) : 23-32.
http://dx.doi.org/10.1007/s00606-002-0279-9
---------- MLA ----------
Radice, S., Galati, B.G. "Floral nectary ultrastructure of Prunus persica (L.) Batch cv. Forastero (Newcomer), an Argentine peach" . Plant Systematics and Evolution, vol. 238, no. 1-4, 2003, pp. 23-32.
http://dx.doi.org/10.1007/s00606-002-0279-9
---------- VANCOUVER ----------
Radice, S., Galati, B.G. Floral nectary ultrastructure of Prunus persica (L.) Batch cv. Forastero (Newcomer), an Argentine peach. Plant Syst. Evol. 2003;238(1-4):23-32.
http://dx.doi.org/10.1007/s00606-002-0279-9