Aging- and task-related resilience decline is linked to food responsiveness in highly social honey bees

Experimental Gerontology
Martin T SpethDaniel Münch

Abstract

Conventional invertebrate models of aging have provided striking examples for the influence of food- and nutrient-sensing on lifespan and stress resilience. On the other hand, studies in highly social insects, such as honey bees, have revealed how social context can shape very plastic life-history traits, for example flexible aging dynamics in the helper caste (workers). It is, however, not understood how food perception and stress resilience are connected in honey bee workers with different social task behaviors and aging dynamics. To explore this linkage, we tested if starvation resilience, which normally declines with age, depends on food responsiveness in honey bees. We studied two typically non-senesced groups of worker bees with different social task behaviors: mature nurses (caregivers) and mature foragers (food collectors). In addition, we included a group of old foragers for which functional senescence is well-established. Bees were individually scored for their food perception by measuring the gustatory response to different sucrose concentrations. Subsequently, individuals were tested for survival under starvation stress. We found that starvation stress resilience, but not gustatory responsiveness differed between wo...Continue Reading

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Citations

Oct 11, 2016·Current Opinion in Insect Science·Jane de Verges, Volker Nehring
Aug 19, 2016·Scientific Reports·Lucie DesmedtMaria Gabriela de Brito Sanchez

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