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Abstract:

Morphology, anatomy, and ultrastructure of nectaries of 12 species belonging to five tribes of Rhamnaceae (Pomaderreae, Colletieae, Paliureae, and Gouanieae of the Ziziphoids clade and Rhamneae of the Rhamnoids clade) were studied by light and electron microscopy. Four types of nectaries were observed in this study. Species of the tribes Rhamneae, Gouanieae, Paliureae, and Cryptandra tomentosa Lindl. of the Pomaderreae tribe have annular nectaries. Siegfriedia darwinioides C.A. Gardner and Stenanthemum humile Benth. (Pomaderreae) have revolute nectaries, as do Colletia paradoxa (Spreng.) Escalante and Colletia spinosissima J.F. Gmel. (Colletieae). Retanilla patagonica (Speg.) Tortosa and Kentrothamnus weddellianus (Miers) M.C. Johnst. (Colletieae) have indistinct and adpressed nectaries, respectively. Nectar secretion occurs through modified nectary stomata in all species. Differences in the ultrastructure, mode of nectar secretion, and position of the nectaries are discussed. According to the organelles found in the nectary cells of all the species studied, granulocrine secretion is most likely to occur. Further research on these structures in additional species of this family could help to establish nectary homologies. © 2017 by The Torrey Botanical Society.

Registro:

Documento: Artículo
Título:Morphological and ultrastructural studies of floral nectaries in Rhamnaceaea, b
Autor:Gotelli, M.M.; Galati, B.G.; Medan, D.
Filiación:Universidad de Buenos Aires, Facultad de Agronomýá, Departamento de Recursos Naturales y, Av. San Martin 4453, Buenos Aires, 1417, Argentina
CONICET, Godoy Cruz, Buenos Aires, Argentina
Palabras clave:Electron microscopy; nectary; Rhamnoids clade; Ziziphoids clade; anatomy; cladistics; dicotyledon; electron microscopy; homology; morphology; nectar; nectary; research work; secretion; stomata; ultrastructure; Colletia paradoxa; Colletia spinosissima; Colletieae; Cryptandra; Gouanieae; Kentrothamnus weddellianus; Paliureae; Pomaderreae; Retanilla patagonica; Rhamnaceae; Rhamneae; Siegfriedia darwinioides
Año:2017
Volumen:144
Número:1
Página de inicio:63
Página de fin:73
DOI: http://dx.doi.org/10.3159/TORREY-D-15-00045.1
Título revista:Journal of the Torrey Botanical Society
Título revista abreviado:J. Torrey Bot. Soc.
ISSN:10955674
CODEN:JTBSF
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10955674_v144_n1_p63_Gotelli

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Citas:

---------- APA ----------
Gotelli, M.M., Galati, B.G. & Medan, D. (2017) . Morphological and ultrastructural studies of floral nectaries in Rhamnaceaea, b. Journal of the Torrey Botanical Society, 144(1), 63-73.
http://dx.doi.org/10.3159/TORREY-D-15-00045.1
---------- CHICAGO ----------
Gotelli, M.M., Galati, B.G., Medan, D. "Morphological and ultrastructural studies of floral nectaries in Rhamnaceaea, b" . Journal of the Torrey Botanical Society 144, no. 1 (2017) : 63-73.
http://dx.doi.org/10.3159/TORREY-D-15-00045.1
---------- MLA ----------
Gotelli, M.M., Galati, B.G., Medan, D. "Morphological and ultrastructural studies of floral nectaries in Rhamnaceaea, b" . Journal of the Torrey Botanical Society, vol. 144, no. 1, 2017, pp. 63-73.
http://dx.doi.org/10.3159/TORREY-D-15-00045.1
---------- VANCOUVER ----------
Gotelli, M.M., Galati, B.G., Medan, D. Morphological and ultrastructural studies of floral nectaries in Rhamnaceaea, b. J. Torrey Bot. Soc. 2017;144(1):63-73.
http://dx.doi.org/10.3159/TORREY-D-15-00045.1