Results 141 to 150 of about 1,448 (177)

TheArabidopsisnectary is an ABC-independent floral structure

Development, 2001
In contrast to the conservation of floral organ order in angiosperm flowers, nectary glands can be found in various floral and extrafloral positions. Since in Arabidopsis, the nectary develops only at the base of stamens, its specification was assayed with regard to the floral homeotic ABC selector genes. We show that the nectary can form independently
S F, Baum, Y, Eshed, J L, Bowman
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The floral nectaries in theLimnanthaceae

Plant Systematics and Evolution, 1992
Floral nectaries in theLimnanthaceae are established as exoscopic basal bulges of the episepalous stamens. Their nectariferous tissues include the epidermis and hypodermal parenchyma and inLimnanthes are vascularized by phloematic branches of the staminal bundles. Secretion occurs mainly through anomocytic stomata but, in addition, probably through the
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Androecium and floral nectaries ofHarungana madagascariensis (Clusiaceae)

Plant Systematics and Evolution, 1991
The mature flower ofHarungana madagascariensis (Choisy)Poir. has an androecium of five antipetalous fascicles, consisting of four stamens each. The stamen fascicles alternate with five indented nectary scales. A SEM-study of the floral development, as well as a study of the floral anatomy was carried out to understand whether the nectariferous scales ...
L. P. Ronse Decraene, E. Smets
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THE FOLIAR AND FLORAL NECTARIES OF TURNERA ULMIFOLIA L.

American Journal of Botany, 1975
The floral and foliar nectaries of Turnera ulmifolia are specialized and are representative of others found in the Turneraceae. The foliar and floral nectary systems must be treated independently.
Thomas S. Elias, W. R. Rozich, Lydia Newcombe   +2 more
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Evolution of floral nectary in Lamiaceae

Proceedings / Indian Academy of Sciences, 1986
The morphology and vasculature of the floral disc have been studied in 30 species of Lamiaceae to discuss its phylogeny. In Lamiaceae the disc receives vascular supply mostly from the gynoecial bundles which indicates its association with the gynoecium.
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Morphological and ultrastructural studies of floral nectaries in Rhamnaceae

The Journal of the Torrey Botanical Society, 2016
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.
Gotelli, Marina María, Galati, Beatriz G., Medan, Diego   +2 more
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A systematic survey of floral nectaries

2007
The construction of classifications, as well as the understanding of biological diversity, depends upon a careful comparison of attributes of the organisms studied (Stuessy, 1990). It is widely known that data from diverse sources showing differences from taxon to taxon are of systematic significance.
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A New Tribal Classification of Mesembryanthemaceae: Evidence from Floral Nectaries

Taxon, 2002
AbstractMesembryanthemaceae Fenzl, here defined as excluding Aizoaceae Rudolphi s.str., are divided into five major groups, primarily on the basis of characters of the floral nectary. In terms of nectary type, the meronectary is considered a synapomorphy for the family Mesembryanthemaceae.
Pascale Chesselet, Gideon F. Smith, Abraham E. van Wyk   +2 more
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Micromorphology and ultrastructure of the floral nectaries of Polemonium caeruleum L. (Polemoniaceae)

Protoplasma, 2011
The Polemoniaceae family forms flowers diverse in the terms of pollination methods and nectar types. The micromorphology of the nectary surface and the tissue structures as well as the ultrastructure of the cells of the floral nectaries in Polemonium caeruleum L. were examined using light, scanning and transmission electron microscopy.
Mirosława, Chwil, Stanisław, Chwil
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Floral structure and nectary anatomy of Bertholletia excelsa (Lecythidaceae)

Botany Letters
Fil: Amarilla, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales.
Amarilla, Leonardo, Tello, Natalia R., Cavalcante, Marcelo C., Maués, Márcia M., Galetto, Leonardo   +4 more
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