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The complexity of nectar: secretion and resorption dynamically regulate nectar features
Die Naturwissenschaften, 2007In this paper, we review the phenomenon of nectar resorption, focusing on its physiological and ecological meaning. Nectar resorption is a phenomenon that has long been known but was rarely reported until the 1990s. It has more recently been demonstrated in several species by various direct and indirect methodologies. It has generally been demonstrated
Massimo Nepi +2 more
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2007
Contributing Authors. Preface. 1. Introduction E. Pacini, S.W. Nicolson. 1.1 Evolutionary origins. 1.2 Secretions analogous to nectar. 1.3 Floral and extrafloral nectarines. 1.4 Nectar components. 1.5 Organization of this volume. 2. A Systematic Survey of Floral Nectaries G. Bernardello. 2.1 Introduction. 2.2 Nectaries in gymnosperms.
NICOLSON S., NEPI M., PACINI E.
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Contributing Authors. Preface. 1. Introduction E. Pacini, S.W. Nicolson. 1.1 Evolutionary origins. 1.2 Secretions analogous to nectar. 1.3 Floral and extrafloral nectarines. 1.4 Nectar components. 1.5 Organization of this volume. 2. A Systematic Survey of Floral Nectaries G. Bernardello. 2.1 Introduction. 2.2 Nectaries in gymnosperms.
NICOLSON S., NEPI M., PACINI E.
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Neuroactive nectar: compounds in nectar that interact with neurons
Arthropod-Plant Interactions, 2020As well as sugars to entice pollinators, nectar contains many other chemicals including amino acids and plant secondary compounds such as phenolics, alkaloids, and glycosides. Rather than simply the byproducts of plant metabolism or contamination by compounds meant to deter herbivory, it is clear that these chemicals may have important roles in nectar.
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New Phytologist
Summary Postfloral nectar presenting on reproductive organs after pollination generally functions in plant defense to protect fruits and seeds, but the mechanisms for postfloral nectary development and nectar secretion remain largely unknown. We report the first case of postfloral nectar production in the genus Dendrobium (Orchidaceae). D.
Zongmin Mou +7 more
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Summary Postfloral nectar presenting on reproductive organs after pollination generally functions in plant defense to protect fruits and seeds, but the mechanisms for postfloral nectary development and nectar secretion remain largely unknown. We report the first case of postfloral nectar production in the genus Dendrobium (Orchidaceae). D.
Zongmin Mou +7 more
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Iridoid glycosides in the nectar ofCatalpa speciosa are unpalatable to nectar thieves
Journal of Chemical Ecology, 1982The floral nectar ofCatalpa speciosa has a chemical mechanism that limits thievery. A bioassay employing sphingid larvae,Ceratomia catalpae, shows that catalpa iridoid glycosides are present in the floral nectar. When potential nectar thieves are fed nectar, a sucrose solution of identical concentration, or a sucrose solution plus 0.4% catalpol and 0.4%
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Calculating nectar production rates: residual nectar and optimal foraging
Oecologia, 1983Bumblebees, when foraging for nectar in flowers of Aconitum columbianum, do not consistently drain them of reward. The amount of residual nectar varies among sites, times and species of bee. At times, residual nectar can be a significant percentage of total 24 h production strongly suggesting that, if nectar secretion rates are to be studied, flowers ...
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1986
In 1609 Charles Butler engagingly described honeybees as ‘summer birds’ because each year colonies of bees begin afresh the founding of nests or greater expansions of combs in an old one. This knowledge is contained in mediaeval calendars and probably reaches back into prehistory.
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In 1609 Charles Butler engagingly described honeybees as ‘summer birds’ because each year colonies of bees begin afresh the founding of nests or greater expansions of combs in an old one. This knowledge is contained in mediaeval calendars and probably reaches back into prehistory.
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Floral nectar production: what cost to a plant?
Biological Reviews, 2023Graham H Pyke, Zong-Xin Ren
exaly
Potential effects of nectar microbes on pollinator health
Philosophical Transactions of the Royal Society B: Biological Sciences, 2022Valerie N Martin +2 more
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