Artículo
Carpellary appendages in Nymphaea and Victoria (Nymphaeaceae): Evidence of their role as osmophores based on morphology, anatomy and ultrastructure
Zini, Lucia Melisa
; Galati, Beatriz Gloria; Gotelli, Marina María
; Zarlavzky, Gabriela; Ferrucci, María Silvia
Fecha de publicación:
29/10/2019
Editorial:
Wiley Blackwell Publishing, Inc
Revista:
Botanical Journal of The Linnean Society
ISSN:
0024-4074
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In flowers of Nymphaea and Victoria, carpellary appendages are regarded as structures related to pollination by deceit of night-blooming species. In this study, the anatomy, histochemistry and ultrastructure of carpellary appendages were analysed to investigate their possible role in the production of volatile compounds in nocturnal species Nymphaea amazonum, N. gardneriana, N. prolifera (Nymphaea subgenus Hydrocallis) and Victoria cruziana, and in diurnal species N. caerulea (Nymphaea subgenus Brachyceras). Carpellary appendages were studied using light microscopy and scanning and transmission electron microscopy from pre-anthesis to the second day of anthesis. Anatomical and ultrastructural features are characteristic of osmophores. In all species, the most frequent components in secretory cells are amyloplasts, lipid bodies, mitochondria, rough endoplasmic reticulum and elaioplasts. The epidermis and multilayered parenchyma accumulate abundant starch grains and lipophilic substances, both of which vanish during anthesis. Amorphous substances are deposited between the plasmalemma and the outer cell wall of epidermal cells, and are then released by cuticular diffusion. Odour production in carpellary appendages might be an ancient role of primary importance both in diurnal and nocturnal species that are pollinated by deceit. Olfactory and visual cues of small carpellary appendages in Nymphaea subgenus Brachyceras correspond to bee pollination, and large carpellary appendages in subgenus Hydrocallis and Victoria represent parallel functional specializations of the flowers to the attraction and reward for exclusive beetle pollination.
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Identificadores
Colecciones
Articulos(IBONE)
Articulos de INST.DE BOTANICA DEL NORDESTE (I)
Articulos de INST.DE BOTANICA DEL NORDESTE (I)
Articulos(OCA PQUE. CENTENARIO)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA PQUE. CENTENARIO
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA PQUE. CENTENARIO
Citación
Zini, Lucia Melisa; Galati, Beatriz Gloria; Gotelli, Marina María; Zarlavzky, Gabriela; Ferrucci, María Silvia; Carpellary appendages in Nymphaea and Victoria (Nymphaeaceae): Evidence of their role as osmophores based on morphology, anatomy and ultrastructure; Wiley Blackwell Publishing, Inc; Botanical Journal of The Linnean Society; 191; 4; 29-10-2019; 421-439
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