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Remarkable nectaries: structure, ecology, organophyletic perspectives I. Substitutive nectaries
Flora, 1997Summary In the present, first part of a series of studies on floral and extrafloral nectaries (N, Ns) that deserve interest from the structural, taxonomic, evolutionary and ecological points of view, the nuptial Ns found in members of five families are examined. They are considered to be substitutive, having evolved secondarily in subgroups that have
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Extrafloral Nectaries in Solanum
Biotropica, 1985Extrafloral nectaries (EFNs) occur on the corollas of 3 dioecious species of Solanum (S. cunninghamii Benth., S. dioicum W.V. Fitzg., and S. tudununggae Symon) from Australia. Solanum dioicum also bears EFNs on the leaves. This is the first report of nectaries of any kind for the genus Solanum, the first report of EFNs for the family Solanaceae, and ...
Gregory J. Anderson, David E. Symon
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THE FLORAL AND EXTRA‐FLORAL NECTARIES OF PASSIFLORA. I. THE FLORAL NECTARY
American Journal of Botany, 1981Floral nectary development and nectar secretion in three species of Passiflora were investigated with light and electron microscopy. The nectary ring results from the activity of an intercalary meristem. Increased starch deposition in the amyloplasts of the secretory cells parallels maturation of the nectary phloem.
Lenore T. Durkee +2 more
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Extrafloral Nectaries in Acacia mangium
Tropical Plant Biology, 2012Our microscopy studies describe the anatomy of extrafloral nectaries on the abaxial side of the basal part of every leaf stalks of Acacia mangium. The lens-like nectary expands with the development of the leafstalk, peaks at the stage at which the leafstalk itself has reached its mature size.
Chunhua Zhang +3 more
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2005
Basins, Maria, and Highlands The Nectaris region (Figure 8.1) has extensive highlands, intensively cratered terrain whose large-scale topography has been established in very ancient times (in the Pre-Nectarian Period).
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Basins, Maria, and Highlands The Nectaris region (Figure 8.1) has extensive highlands, intensively cratered terrain whose large-scale topography has been established in very ancient times (in the Pre-Nectarian Period).
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Intercellular permeability inAbutilon nectary trichomes
Protoplasma, 1991Intercellular transport was examined in nectary hairs ofAbutilon slriatum var.thompsonii using dye-uptake and microinjection followed by fluorescence and electron microscopy. Dye-uptake experiments demonstrated that both Lucifer Yellow CH (LYCH) and diaminobenzidine (DAB) move centrifugally along an apoplastic pathway from the sepellary tissue towards ...
G. Zellnig +2 more
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Ultrastructure of the Sunflower Nectary
Journal of Apicultural Research, 1985SummaryHoneybees (Apis mellifera) exercise distinct foraging preferences among sunflower (Helianthus annuus) seed-parent lines and hybrid cultivars. Floral nectaries of over 100 sunflower cultivars/species were examined and compared to develop correlations between particular anatomical characteristics and honeybee predilection. The nectary, as revealed
D. Sammataro +2 more
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THE FLORAL AND EXTRA‐FLORAL NECTARIES OF PASSIFLORA. II. THE EXTRA‐FLORAL NECTARY
American Journal of Botany, 1982Extra‐floral nectaries of nine species of Passiflora were studied with light and electron microscopy prior to and during secretion. There is no evidence of ER or Golgi participation in the secretion of nectar. The vascular tissue supplying the nectary is characterized by companion and phloem parenchyma cells which are usually larger than the sieve ...
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The floral nectaries in theIrvingiaceae
Plant Systematics and Evolution, 1992TheIrvingiaceae generally possess large intrastaminal receptacular disc nectaries of the mesenchymatic histo-type, which receive numerous small phloematic bundles directly from the central stele. The non-glandular epidermis bears some 10 to 15 strictly localized stomata that are deeply sunken in the parenchyma.
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Nectaries in ferns: their taxonomic distribution, structure, function, and sugar composition
American Journal of Botany, 2022Klaus Mehltreter +2 more
exaly