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Floral nectar production: what cost to a plant?
Biological Reviews, 2023ABSTRACTFloral nectar production is central to plant pollination, and hence to human wellbeing. As floral nectar is essentially a solution in water of various sugars, it is likely a valuable plant resource, especially in terms of energy, with plants experiencing costs/trade‐offs associated with its production or absorption and adopting mechanisms to ...
Graham H. Pyke, Zong‐Xin Ren
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Ecological context influences pollinator deterrence by alkaloids in floral nectar
Ecology Letters, 2007AbstractSecondary compounds may benefit plants by deterring herbivores, but the presence of these defensive chemicals in floral nectar may also deter beneficial pollinators. This trade‐off between sexual reproduction and defense has received minimal study.
Robert J, Gegear +2 more
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Bacterial communities in floral nectar
Environmental Microbiology Reports, 2011Summary Floral nectar is regarded as the most important reward available to animal‐pollinated plants to attract pollinators. Despite the vast amount of publications on nectar properties, the role of nectar as a natural bacterial habitat is yet unexplored.
Svetlana, Fridman +3 more
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CYCLOIDEA-like genes control floral symmetry, floral orientation, and nectar guide patterning
The Plant Cell, 2023Abstract Actinomorphic flowers usually orient vertically (relative to the horizon) and possess symmetric nectar guides, while zygomorphic flowers often face horizontally and have asymmetric nectar guides, indicating that floral symmetry, floral orientation, and nectar guide patterning are correlated.
Xia Yang +8 more
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Carbohydrate analysis of floral nectar using medium infrared
Phytochemical Analysis, 2003Abstract An instrumental method based on a chemometric model of the medium region of the infrared (MIR) was developed to analyse total sugar content and the proportions of glucose, fructose and sucrose.
Cesar Mateo Flores, Ortiz +4 more
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Green roof effects on floral phenology and floral nectar resources
2023This study investigates the potential for green roofs to support pollinator diversity and abundance in urban ecosystems through the altered floral phenology and floral abundance of plants. I compare floral phenology and the floral abundance of green roof plants to plants grown at grade on the Front Range in Fort Collins, Colorado, and how these changes
Ruszkowski, Kyle M. +3 more
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Floral nectar composition ofPeganum harmalaL.
Natural Product Research, 2009Chemical composition of the floral nectar of Peganum harmala, a herbaceous medicinal perennial of the family Zygophyllaceae, was analysed using high-performance liquid chromatography technique. The nectar sugar detection experiments resulted in 33.1, 39.8 and 27.4%, respectively, for fructose, glucose and sucrose, upon which the nectar was classified ...
A, Movafeghi +4 more
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Floral Nectar Spurs and Diversification
International Journal of Plant Sciences, 1997Key innovations are thought to be especially important adaptations that confer the ability to utilize resources in a novel manner and may therefore allow taxa to diversify. Here I review the data indicating that the evolution of floral nectar spurs represents a key innovation in Aquilegia and many additional groups.
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Remote perception of floral nectar by bumblebees
Oecologia, 1984On both artificial flowers in the laboratory and certain plant species in the field, bumblebees often closely approached flowers and then departed without probing for nectar. In laboratory experiments where nectar rewards were associated with subtle visual or olfactory cues, bumblebees approached and avoided non-rewarding flowers.
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