Influence of pollen nutrition on honey bee health: do pollen quality and diversity matter?

Honey bee colonies are highly dependent upon the availability of floral resources from which they get the nutrients (notably pollen) necessary to their development and survival. However, foraging areas are currently affected by the intensification of agriculture and landscape alteration. Bees are th...

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Autores principales:	Garance Di Pasquale, Marion Salignon, Yves Le Conte, Luc P Belzunces, Axel Decourtye, André Kretzschmar, Séverine Suchail, Jean-Luc Brunet, Cédric Alaux
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5a8de913e4f04cb8a1318c85fc5dcd66
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spelling	oai:doaj.org-article:5a8de913e4f04cb8a1318c85fc5dcd662021-11-18T09:01:06ZInfluence of pollen nutrition on honey bee health: do pollen quality and diversity matter?1932-620310.1371/journal.pone.0072016https://doaj.org/article/5a8de913e4f04cb8a1318c85fc5dcd662013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23940803/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Honey bee colonies are highly dependent upon the availability of floral resources from which they get the nutrients (notably pollen) necessary to their development and survival. However, foraging areas are currently affected by the intensification of agriculture and landscape alteration. Bees are therefore confronted to disparities in time and space of floral resource abundance, type and diversity, which might provide inadequate nutrition and endanger colonies. The beneficial influence of pollen availability on bee health is well-established but whether quality and diversity of pollen diets can modify bee health remains largely unknown. We therefore tested the influence of pollen diet quality (different monofloral pollens) and diversity (polyfloral pollen diet) on the physiology of young nurse bees, which have a distinct nutritional physiology (e.g. hypopharyngeal gland development and vitellogenin level), and on the tolerance to the microsporidian parasite Nosemaceranae by measuring bee survival and the activity of different enzymes potentially involved in bee health and defense response (glutathione-S-transferase (detoxification), phenoloxidase (immunity) and alkaline phosphatase (metabolism)). We found that both nurse bee physiology and the tolerance to the parasite were affected by pollen quality. Pollen diet diversity had no effect on the nurse bee physiology and the survival of healthy bees. However, when parasitized, bees fed with the polyfloral blend lived longer than bees fed with monofloral pollens, excepted for the protein-richest monofloral pollen. Furthermore, the survival was positively correlated to alkaline phosphatase activity in healthy bees and to phenoloxydase activities in infected bees. Our results support the idea that both the quality and diversity (in a specific context) of pollen can shape bee physiology and might help to better understand the influence of agriculture and land-use intensification on bee nutrition and health.Garance Di PasqualeMarion SalignonYves Le ConteLuc P BelzuncesAxel DecourtyeAndré KretzschmarSéverine SuchailJean-Luc BrunetCédric AlauxPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 8, p e72016 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Garance Di Pasquale Marion Salignon Yves Le Conte Luc P Belzunces Axel Decourtye André Kretzschmar Séverine Suchail Jean-Luc Brunet Cédric Alaux Influence of pollen nutrition on honey bee health: do pollen quality and diversity matter?
description	Honey bee colonies are highly dependent upon the availability of floral resources from which they get the nutrients (notably pollen) necessary to their development and survival. However, foraging areas are currently affected by the intensification of agriculture and landscape alteration. Bees are therefore confronted to disparities in time and space of floral resource abundance, type and diversity, which might provide inadequate nutrition and endanger colonies. The beneficial influence of pollen availability on bee health is well-established but whether quality and diversity of pollen diets can modify bee health remains largely unknown. We therefore tested the influence of pollen diet quality (different monofloral pollens) and diversity (polyfloral pollen diet) on the physiology of young nurse bees, which have a distinct nutritional physiology (e.g. hypopharyngeal gland development and vitellogenin level), and on the tolerance to the microsporidian parasite Nosemaceranae by measuring bee survival and the activity of different enzymes potentially involved in bee health and defense response (glutathione-S-transferase (detoxification), phenoloxidase (immunity) and alkaline phosphatase (metabolism)). We found that both nurse bee physiology and the tolerance to the parasite were affected by pollen quality. Pollen diet diversity had no effect on the nurse bee physiology and the survival of healthy bees. However, when parasitized, bees fed with the polyfloral blend lived longer than bees fed with monofloral pollens, excepted for the protein-richest monofloral pollen. Furthermore, the survival was positively correlated to alkaline phosphatase activity in healthy bees and to phenoloxydase activities in infected bees. Our results support the idea that both the quality and diversity (in a specific context) of pollen can shape bee physiology and might help to better understand the influence of agriculture and land-use intensification on bee nutrition and health.
format	article
author	Garance Di Pasquale Marion Salignon Yves Le Conte Luc P Belzunces Axel Decourtye André Kretzschmar Séverine Suchail Jean-Luc Brunet Cédric Alaux
author_facet	Garance Di Pasquale Marion Salignon Yves Le Conte Luc P Belzunces Axel Decourtye André Kretzschmar Séverine Suchail Jean-Luc Brunet Cédric Alaux
author_sort	Garance Di Pasquale
title	Influence of pollen nutrition on honey bee health: do pollen quality and diversity matter?
title_short	Influence of pollen nutrition on honey bee health: do pollen quality and diversity matter?
title_full	Influence of pollen nutrition on honey bee health: do pollen quality and diversity matter?
title_fullStr	Influence of pollen nutrition on honey bee health: do pollen quality and diversity matter?
title_full_unstemmed	Influence of pollen nutrition on honey bee health: do pollen quality and diversity matter?
title_sort	influence of pollen nutrition on honey bee health: do pollen quality and diversity matter?
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/5a8de913e4f04cb8a1318c85fc5dcd66
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Influence of pollen nutrition on honey bee health: do pollen quality and diversity matter?

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