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Nectar secretion inAbutilon: a new model
Protoplasma, 1988Nectary trichomes ofAbutilon striatum secrete copious amounts of sucrose, fructose and glucose. The nectar emerges from transient pores in the cuticle overlying the trichome tip cells. Calculations of the required transmembrane fluxes, either across the tip cell plasmalemma or across the cell membrane of the whole trichome, give very high rates ...
A. W. Robards, M. Stark
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Nectary Structure, Nectar Secretion Patterns and Nectar Composition in Two Helleborus Species
Plant Biology, 1999Abstract: The morphological and cytological characteristics of nectaries of Helleborus foetidus and H. bocconei during the secretory period are reported. The nectaries are derived from modified petals and secrete nectar continuously for about 20 days; they consist of a single layered epidermis, nectar‐producing parenchyma and photosynthesizing ...
VESPRINI J. L., NEPI M., PACINI E.
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Extrafloral nectar secretion from wounds of Solanum dulcamara
Nature Plants, 2016Plants usually close wounds rapidly to prevent infections and the loss of valuable resources such as assimilates(1). However, herbivore-inflicted wounds on the bittersweet nightshade Solanum dulcamara appear not to close completely and produce sugary wound secretions visible as droplets.
Tobias Lortzing +8 more
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Dilute Nectar in Dry Atmospheres: Nectar Secretion Patterns in Aloe castanea (Asphodelaceae)
International Journal of Plant Sciences, 2005Aloe species commonly flower during the winter dry season in southern Africa and produce abundant dilute nectar. We investigated variability in nectar production and availability in Aloe castanea because evaporation is more likely from its open flowers than from the tubular flowers of most other Aloe species.
NICOLSON S., NEPI M.
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Journal of Apicultural Research, 1984
SummaryNectar secretion was studied in dandelion growing in a crested wheat-grass field in the Peace River region of Alberta, Canada. The average number of flowers produced daily in an area 1 m2 was 59·2 in 1981 and 8·9 in 1982. Most flowers opened in the morning and closed in the afternoon.
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SummaryNectar secretion was studied in dandelion growing in a crested wheat-grass field in the Peace River region of Alberta, Canada. The average number of flowers produced daily in an area 1 m2 was 59·2 in 1981 and 8·9 in 1982. Most flowers opened in the morning and closed in the afternoon.
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Why Do Hummingbird Flowers Secrete Dilute Nectar?
Biotropica, 1978(Uploaded by Plazi for the Bat Literature Project) No abstract provided.
Bolten, Alan B., Feinsinger, Peter
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1982
Nectar is a sugar-rich solution transported from the phloem, through a specialized nectary tissue, to the outside of the plant.
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Nectar is a sugar-rich solution transported from the phloem, through a specialized nectary tissue, to the outside of the plant.
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Nectar secretion patterns in Salvia pratensis L. (Lamiaceae)
Flora, 1995Summary Nectar secretion patterns, volume, sugar amount, sugar concentration and sucrose/hexose-ratios in Salvia pratensis varied considerably between flowers of different plants, both during the course of a single day as well as over the whole anthesis, which lasted for 4 days.
Ursula Kradolfer, Andreas Erhardt
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Intrapopulation variation in nectar secretion in Impatiens capensis
Oecologia, 1984Variation in nectar secretion rates within a population of Impatiens capensis was examined. There was no evidence for phenotypic variation between plants in nectar secretion rates. There was significant daily variation in secretion rates, which appeared to be caused by environmental factors.
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Effects of Herbicides on Nectar Secretion
Journal of Apicultural Research, 1964SUMMARYApplications of 2,4-D in amounts lethal to the plant inhibited nectar secretion in poinsettias (Euphorbia pulcherrima), usually within two days. Applications of amitrole did not inhibit nectar secretion, and the nectar contained a normal amount of total sugars.The nectar secreted by plants treated with 2,4-D contained an auxin-like substance ...
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