Results 161 to 170 of about 5,375 (218)

THE FLORAL AND EXTRA‐FLORAL NECTARIES OF PASSIFLORA. I. THE FLORAL NECTARY

American Journal of Botany, 1981
Floral 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, Dorothy J. Gaal, W. Howard Reisner   +2 more
openaire   +1 more source

Extrafloral Nectaries in Solanum

Biotropica, 1985
Extrafloral 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
openaire   +1 more source

On the evolution of nectaries in Aizoaceae

Bradleya, 2009
Nectaries of flowers from all four subfamilies of the Aizoaceae have been studied in detail under the scanning electron microscope (SEM), permitting the description of a new nectary system. The Ruschioideae can be distinguished by their bulging nectaries from all others with a plain nectary type, into which the coilomorphic nectaries of the ...
H.E.K. Hartmann, I.M. Niesler
openaire   +1 more source

Structure of the nectary in Chaenomeles japonica (Thunb.) Lindl. ex Spach. in different stages of flowering with focus on nectar secretion

Protoplasma, 2022
E. Weryszko-Chmielewska, Aneta Sulborska-Różycka, T. Sawidis   +2 more
semanticscholar   +1 more source

Ultrastructure of the Sunflower Nectary

Journal of Apicultural Research, 1985
SummaryHoneybees (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, E. H. Erickson, M. B. Garment   +2 more
openaire   +1 more source

THE FLORAL AND EXTRA‐FLORAL NECTARIES OF PASSIFLORA. II. THE EXTRA‐FLORAL NECTARY

American Journal of Botany, 1982
Extra‐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 ...
openaire   +1 more source

Apoplasmic barrier in the extrafloral nectary of Citharexylum myrianthum (Verbenaceae)

Planta, 2021
S. Machado, T. M. Rodrigues
semanticscholar   +1 more source

Evolutionary trends and diversity of major floral nectary types across Solanaceae

Planta, 2021
Banisha Phukela, A. Adit, R. Tandon
semanticscholar   +1 more source

The floral nectaries in theIrvingiaceae

Plant Systematics and Evolution, 1992
TheIrvingiaceae 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.
openaire   +1 more source

The Biology of Nectaries.

Bulletin of the Torrey Botanical Club, 1984
Lazarus Walter Macior, Barbara Bentley, Thomas Elias   +2 more
openaire   +1 more source