Results 131 to 140 of about 1,446 (175)

FlowerPatch: New Method to Measure Nectar Volume in Artificial Flowers. [PDF]

Insects
Lara-Perez E, Agosto Rivera J, Giray T, Megret Laboye R, Flórez Gómez E.   +4 more
europepmc   +1 more source

Can <i>Cis</i>-Regulatory Elements Explain Differences in <i>Petunia</i> Pollination Syndromes? [PDF]

Genes (Basel)
Pereira AG, Filgueiras JPC, Freitas LB.
europepmc   +1 more source

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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

Diversity of petals in Berberidaceae: development, micromorphology, and structure of floral nectaries

Protoplasma, 2021
Petals are important floral organs that exhibit considerable morphological diversity in terms of colour, shape, and size. The varied morphologies of mature petals can be linked to developmental differences. The petals of Berberidaceae (a core group of Ranunculales) range from flat sheets to complex structures with nectaries, but studies on petal ...
Shan, Su, Liang, Zhao, Yi, Ren, Xiao-Hui, Zhang   +3 more
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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

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
openaire   +1 more source

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
openaire   +1 more source