Honey Bees Can Taste Amino and Fatty Acids in Pollen, but Not Sterols

The nutritional composition of food is often complex as resources contain a plethora of different chemical compounds, some of them more, some less meaningful to consumers. Plant pollen, a major food source for bees, is of particular importance as it comprises nearly all macro- and micronutrients req...

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Main Authors: Fabian A. Ruedenauer, Niklas W. Biewer, Carmen A. Nebauer, Maximilian Scheiner, Johannes Spaethe, Sara D. Leonhardt
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-06-01
Series:Frontiers in Ecology and Evolution
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fevo.2021.684175/full
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author Fabian A. Ruedenauer
Niklas W. Biewer
Carmen A. Nebauer
Maximilian Scheiner
Johannes Spaethe
Sara D. Leonhardt
author_facet Fabian A. Ruedenauer
Niklas W. Biewer
Carmen A. Nebauer
Maximilian Scheiner
Johannes Spaethe
Sara D. Leonhardt
author_sort Fabian A. Ruedenauer
collection DOAJ
description The nutritional composition of food is often complex as resources contain a plethora of different chemical compounds, some of them more, some less meaningful to consumers. Plant pollen, a major food source for bees, is of particular importance as it comprises nearly all macro- and micronutrients required by bees for successful development and reproduction. However, perceiving and evaluating all nutrients may be tedious and impair quick foraging decisions. It is therefore likely that nutrient perception is restricted to specific nutrients or nutrient groups. To better understand the role of taste in pollen quality assessment by bees we investigated nutrient perception in the Western honey bee, Apis mellifera. We tested if the bees were able to perceive concentration differences in amino acids, fatty acids, and sterols, three highly important nutrient groups in pollen, via antennal reception. By means of proboscis extension response (PER) experiments with chemotactile stimulation, we could show that honey bees can distinguish between pollen differing in amino and fatty acid concentration, but not in sterol concentration. Bees were also not able to perceive sterols when presented alone. Our finding suggests that assessment of pollen protein and lipid content is prioritized over sterol content.
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spelling doaj.art-9695508a20034d259693bc2b1f832da02022-12-21T18:57:02ZengFrontiers Media S.A.Frontiers in Ecology and Evolution2296-701X2021-06-01910.3389/fevo.2021.684175684175Honey Bees Can Taste Amino and Fatty Acids in Pollen, but Not SterolsFabian A. Ruedenauer0Niklas W. Biewer1Carmen A. Nebauer2Maximilian Scheiner3Johannes Spaethe4Sara D. Leonhardt5Department of Life Science Systems, Research Department Life Science Systems, Technical University of Munich, Freising, GermanyDepartment of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Würzburg, GermanyDepartment of Behavioral Physiology and Sociobiology, Biocenter, University of Würzburg, Würzburg, GermanyDepartment of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Würzburg, GermanyDepartment of Behavioral Physiology and Sociobiology, Biocenter, University of Würzburg, Würzburg, GermanyDepartment of Life Science Systems, Research Department Life Science Systems, Technical University of Munich, Freising, GermanyThe nutritional composition of food is often complex as resources contain a plethora of different chemical compounds, some of them more, some less meaningful to consumers. Plant pollen, a major food source for bees, is of particular importance as it comprises nearly all macro- and micronutrients required by bees for successful development and reproduction. However, perceiving and evaluating all nutrients may be tedious and impair quick foraging decisions. It is therefore likely that nutrient perception is restricted to specific nutrients or nutrient groups. To better understand the role of taste in pollen quality assessment by bees we investigated nutrient perception in the Western honey bee, Apis mellifera. We tested if the bees were able to perceive concentration differences in amino acids, fatty acids, and sterols, three highly important nutrient groups in pollen, via antennal reception. By means of proboscis extension response (PER) experiments with chemotactile stimulation, we could show that honey bees can distinguish between pollen differing in amino and fatty acid concentration, but not in sterol concentration. Bees were also not able to perceive sterols when presented alone. Our finding suggests that assessment of pollen protein and lipid content is prioritized over sterol content.https://www.frontiersin.org/articles/10.3389/fevo.2021.684175/fullnutrient perceptionproboscis extension responseplant-pollinator-interactionsresource usegustation
spellingShingle Fabian A. Ruedenauer
Niklas W. Biewer
Carmen A. Nebauer
Maximilian Scheiner
Johannes Spaethe
Sara D. Leonhardt
Honey Bees Can Taste Amino and Fatty Acids in Pollen, but Not Sterols
Frontiers in Ecology and Evolution
nutrient perception
proboscis extension response
plant-pollinator-interactions
resource use
gustation
title Honey Bees Can Taste Amino and Fatty Acids in Pollen, but Not Sterols
title_full Honey Bees Can Taste Amino and Fatty Acids in Pollen, but Not Sterols
title_fullStr Honey Bees Can Taste Amino and Fatty Acids in Pollen, but Not Sterols
title_full_unstemmed Honey Bees Can Taste Amino and Fatty Acids in Pollen, but Not Sterols
title_short Honey Bees Can Taste Amino and Fatty Acids in Pollen, but Not Sterols
title_sort honey bees can taste amino and fatty acids in pollen but not sterols
topic nutrient perception
proboscis extension response
plant-pollinator-interactions
resource use
gustation
url https://www.frontiersin.org/articles/10.3389/fevo.2021.684175/full
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