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Immunity of honeybee guards reflects their transition from house bees to foragers
Ethology Ecology & Evolution ( IF 1.2 ) Pub Date : 2020-01-05 , DOI: 10.1080/03949370.2019.1695228
Federico Cappa 1 , Iacopo Petrocelli 1 , Alessandro Cini 1, 2 , Irene Pepiciello 1 , Michele Giovannini 1 , AnnaMarta Lazzeri 1 , Brunella Perito 1 , Stefano Turillazzi 1 , Rita Cervo 1
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Eusocial insect colonies represent some of the most extreme examples of specialized division of labor. Ageing in workers is often associated with a temporal polyethism in the tasks performed both inside and outside the colony. Such behavioral transition is sometimes linked to a gradual reduction in individual immunity. Here, we studied the immune ability of Apis mellifera guard bees, which represent an intermediate stage between house bees working inside the nest and foragers collecting resources outside, to assess if their specific task is associated with an immune specialization. Through immune challenge with Gram-negative bacteria Escherichia coli, we compared the guards ability to clear bacterial cells from their haemolymph with respect to house bees and foragers. Our findings demonstrate that guards do not show an immune specialization linked to their task but seem to represent a transition also in terms of immunity, since their anti-bacterial response appears intermediate between house bees and foragers.

中文翻译:

蜜蜂守卫的免疫力反映了他们从家蜂到觅食者的转变

真社会性昆虫群体代表了专业分工的一些最极端的例子。工人的老龄化通常与在殖民地内外执行的任务中的时间多伦理有关。这种行为转变有时与个体免疫力的逐渐降低有关。在这里,我们研究了蜜蜂(Apis mellifera)的免疫能力,它们代表了在巢内工作的家蜂和在外面收集资源的觅食者之间的中间阶段,以评估它们的特定任务是否与免疫特化有关。通过对革兰氏阴性细菌大肠杆菌的免疫攻击,我们比较了守卫从家蜂和觅食者的血淋巴中清除细菌细胞的能力。
更新日期:2020-01-05
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