Is non-host pollen suitable for generalist bumblebees?

Maryse Vanderplanck; Nathalie Escaravage; Denis Michez; Sylvain Decleves; Nathalie Roger; Corentin Decroo; Guillaume Caulier; Gaetan Glauser; Pascal Gerbaux; Georges Lognay; Aurore Richel

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Is non-host pollen suitable for generalist bumblebees?

机译：非寄主花粉是否适合普通大黄蜂？

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Current evidence suggests that pollen is both chemically and structurally protected.Despite increasing interest in studying bee-flower networks,the constraints for bee development related to pollen nutritional content,toxicity and digestibility as well as their role in the shaping of bee-flower interactions have been poorly studied.In this study we combined bioassays of the generalist bee Bombus terrestris on pollen of Cirsium,Trifolium,Salix,and Cistus genera with an assessment of nutritional content,toxicity,and digestibility of pollen.Microcolonies showed significant differences in their development,non-host pollen of Cirsium being the most unfavorable.This pollen was characterized by the presence of quite rare δ7-sterols and a low digestibility.Cirsium consumption seemed increase syrup collection,which is probably related to a detoxification mixing behavior.These results strongly suggest that pollen traits may act as drivers of plant selection by bees and partly explain why Asteraceae pollen is rare in bee generalist diet.

机译：目前的证据表明，花粉在化学和结构上均受到保护。尽管人们对蜂花网络的研究兴趣日增，但与花粉营养含量，毒性和消化率有关的蜂发育障碍及其在蜂花相互作用中的作用却受到影响。在这项研究中，我们结合了普通蜜蜂Bombus terrestris在Cirsium，Trifolium，Salix和Cistus属的花粉上的生物测定，并评估了花粉的营养含量，毒性和消化率.Microcolonies显示出其发育的显着差异，非寄主花粉是最不利的。这种花粉的特点是存在非常稀有的δ7-固醇和低消化率。摄入铯似乎增加了糖浆的收集，这可能与排毒混合行为有关。这些结果强烈表明花粉性状可能是蜜蜂进行植物选择的驱动力，部分解释了为什么Asterac蜜蜂全科饮食中，eae花粉很少见。

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《中国昆虫科学：英文版》 |2018年第2期|259-272|共14页
作者
Maryse Vanderplanck; Nathalie Escaravage; Denis Michez; Sylvain Decleves; Nathalie Roger; Corentin Decroo; Guillaume Caulier; Gaetan Glauser; Pascal Gerbaux; Georges Lognay; Aurore Richel;
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作者单位

Laboratory of Zoology, Research Institute for Biosciences, University of Mons-UMONS, Mons;

Laboratoire Evolution et Diversité Biologique(EDB), CNRS, ENFA, UMR 5174, Université Toulouse 3 Paul Sabatier, Toulouse, France;

Laboratory of Zoology, Research Institute for Biosciences, University of Mons-UMONS, Mons;

Laboratory of Zoology, Research Institute for Biosciences, University of Mons-UMONS, Mons;

Laboratory of Zoology, Research Institute for Biosciences, University of Mons-UMONS, Mons;

Organic Synthesis and Mass Spectrometry Laboratory, Interdisciplinary Center for Mass Spectrometry, University of Mons-UMONS, Mons;

Research Institute for Biosciences,Biology of Marine Organisms and Biomimetics, University of Mons-UMONS, Mons, Belgium;

Neuch(a)tel Platform of Analytical Chemistry, University of Neuch(a)tel, Neuch(a)tel, Switzerland;

Organic Synthesis and Mass Spectrometry Laboratory, Interdisciplinary Center for Mass Spectrometry, University of Mons-UMONS, Mons;

Laboratory of Analytical Chemistry, University of Liège, Gembloux Agro-Bio Tech,Gembloux;

Unit of Biological and Industrial Chemistry(CBI), University of Liège, Gembloux Agro-Bio Tech, Gembloux, Belgium;

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Is non-host pollen suitable for generalist bumblebees?

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