Results 1 to 10 of about 1,446 (175)

Does the Floral Nectary in Dracocephalum moldavica L. Produce Nectar and Essential Oil? Structure and Histochemistry of the Nectary [PDF]

open access: yesBiology, 2022
Dracocephalum moldavica is an aromatic plant with a lemon scent and versatile use. Its flowers produce large amounts of nectar, which is collected by bees and bumblebees. The aim of the study was to investigate the structure of the floral nectary in this
Agata Konarska   +4 more
doaj   +4 more sources

The developmental basis of floral nectary diversity and evolution [PDF]

open access: yesNew Phytologist
SummaryNectar is a central bridge between angiosperms and animal mutualists. It is produced by specialized structures termed nectaries, which can be found on different plant organs. Consumption of floral nectar by pollinators and the subsequent transfer of pollen contribute to the reproductive success of both angiosperms and their pollinators.
Irène Liao   +2 more
exaly   +4 more sources

Morphological and molecular mechanisms of floral nectary development in Chinese Jujube [PDF]

open access: yesBMC Plant Biology
Background Chinese jujube (Ziziphus jujuba Mill.), also called Chinese date, is one of the oldest and widely cultivated fruit trees with great economic values, which, at least, can be attributed to the melliferous flower with highly developed nectary ...
Xiaoshan Duan   +7 more
doaj   +4 more sources

Floral nectary and osmophore of Epipactis helleborine (L.) Crantz (Orchidaceae). [PDF]

open access: yesProtoplasma, 2018
The analysis of flowers collected at different stages of anthesis provides strong evidence to conclude that the shell-shaped hypochile and the knobs of epichile form a nectary. The scent comes from the aromatic constituents of nectar and the epichile tissue and the apices of all tepals (osmophores).
Kowalkowska AK   +3 more
europepmc   +4 more sources

The Floral Nectary of Hymenaea stigonocarpa (Fabaceae, Caesalpinioideae): Structural Aspects During Floral Development [PDF]

open access: yesAnnals of Botany, 2007
Considering that few studies on nectary anatomy and ultrastructure are available for chiropterophilous flowers and the importance of Hymenaea stigonocarpa in natural 'cerrado' communities, the present study sought to analyse the structure and cellular modifications that take place within its nectaries during the different stages of floral development ...
Elder Paiva   +2 more
exaly   +4 more sources

Variation in floral morphology, histochemistry, and floral visitors of three sympatric morning glory species [PDF]

open access: yesPeerJ
Three morning glory species in the genus Argyreia Lour., A. lycioides (Choisy) Traiperm & Rattanakrajang, A. mekongensis Gagnep & Courchet, and A. versicolor (Kerr) Staples & Traiperm, were found co-occurring and co-flowering. Argyreia mekongensis and A.
Awapa Jirabanjongjit   +4 more
doaj   +3 more sources

Can nectary structure in Laeliinae promote or constrain nectar secretion? [PDF]

open access: yesBMC Plant Biology
The orchid subtribe Laeliinae has an assemblage of morphologically diverse taxa. The diversity in floral morphology of its members can be explained in terms of pollination ecology in that this subtribe contains both entomophilous and ornithophilous ...
Małgorzata Stpiczyńska   +6 more
doaj   +2 more sources

Ornithophily in the trumpet creeper (Campsis radicans) [PDF]

open access: yesEcology and Evolution
The diversification of hummingbirds (Trochilidae) has shaped the pollination strategies and floral trait evolution in at least 68 families of flowering plants in the Western Hemisphere.
Gary R. Graves
doaj   +2 more sources

Pollination and Floral Biology of a Rare Morning Glory Species Endemic to Thailand, Argyreia siamensis

open access: yesPlants, 2021
Argyreia siamensis is extremely rare, and very little is known about its reproduction. The species has colorful flowers that seem likely to attract pollinators, but population sizes are typically small (
Awapa Jirabanjongjit   +3 more
doaj   +1 more source

Nectar biosynthesis is conserved among floral and extrafloral nectaries [PDF]

open access: yesPlant Physiology, 2021
AbstractNectar is a primary reward mediating plant–animal mutualisms to improve plant fitness and reproductive success. Four distinct trichomatic nectaries develop in cotton (Gossypium hirsutum), one floral and three extrafloral, and the nectars they secrete serve different purposes.
Elizabeth C Chatt   +8 more
openaire   +3 more sources

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