Differences in drone and worker physiology in honeybees (<i>Apis mellifera</i>)

Hrassnigg, Norbert; Crailsheim, Karl

doi:10.1051/apido:2005015

Cited by 157 publications

(136 citation statements)

References 194 publications

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“…This would be expected before the demand for the highest digestive activity was experienced. The high amount of cell proliferation in newly emerged workers in spite of little pollen consumption (Hrassnigg and Crailsheim, 2005) is consistent with this interpretation. Digestive demand can also account for lower intestinal cell proliferation in drones because they rely on the preprocessed food jelly of the nurse bees (Hrassnigg and Crailsheim, 2005).…”

Section: Discussionsupporting

confidence: 71%

“…The high amount of cell proliferation in newly emerged workers in spite of little pollen consumption (Hrassnigg and Crailsheim, 2005) is consistent with this interpretation. Digestive demand can also account for lower intestinal cell proliferation in drones because they rely on the preprocessed food jelly of the nurse bees (Hrassnigg and Crailsheim, 2005). However, the digestive demand hypothesis alone cannot account for the high intestinal cell proliferation of young queens, because they are fed by nurse bees with easily digestible proteinaceous secretions in the same manner as older queens (Crailsheim, 1990).…”

Section: Discussionsupporting

confidence: 71%

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Age, caste, and behavior determine the replicative activity of intestinal stem cells in honeybees (Apis mellifera L.)

Ward

Coleman

Clinnin

et al. 2008

Experimental Gerontology

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Abstract:Honeybees (Apis mellifera L.) display a pronounced natural aging plasticity. The differences in aging rates between the alternative phenotypes and behavioral classes could reflect differences in protection against damage or in the ability to repair vulnerable tissues. As in other animals, including humans, the gut is continually exposed to environmental insults and harbors a large population of replicating stem cells that maintain the intestinal epithelium. Through studies of the major internal organs using incorporation and immunodetection of the mitotic marker bromodeoxyuridine, the intestine was determined to be the main site of tissue renewal in adult honeybees. Proliferative activity of the intestinal stem cells was compared among queens, workers, and males of different ages. Simultaneous attempts to assess intestinal cell loss via apoptosis yielded inconclusive results. The relationship between intestinal cell proliferation and worker life-history was evaluated in greater depth by studying diutinus winter workers, reproductive workers, and by decoupling worker behavioral status from chronological age in a single-cohort colony. Intestinal cell proliferation was abundant in all groups and showed an agerelated decline in workers, queens, and males. At young ages, workers exhibited relatively more intestinal cell proliferation than did queens and queens more than drones, but the caste and sex differences decreased with age. Cell proliferation did not decrease beyond 6 weeks of age in older queens and in diutinus workers. Ovary activation did not correlate with the amount of intestinal stem cell proliferation in workers, although the queenless hive condition was associated with lower overall counts. In the single-cohort colony, nurse bees exhibited more cell proliferation than foragers, regardless of age. The overall results do not support our hypothesis that longer-lived phenotypes exhibit increased somatic repair in the form of higher replicative activity of intestinal stem cells. Instead, the observed proliferation patterns reflect differential demands for digestive activity in the different groups, which result in different requirements for replacement of lost intestinal cells. The maintenance of proliferative capacity for over 1 year suggests that queen intestinal stem cells have a relatively high replicative potential, but further studies are needed to relate honeybee lifespan differences to cellular aging.

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Section: Discussionsupporting

confidence: 71%

Section: Discussionsupporting

confidence: 71%

Age, caste, and behavior determine the replicative activity of intestinal stem cells in honeybees (Apis mellifera L.)

Ward

Coleman

Clinnin

et al. 2008

Experimental Gerontology

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“…scutellata workers and other sub-species at emergence (Hrassnigg and Crailsheim, 2005 In this and other studies, the weight of drones and workers decreased as the number of foundresses as well as the total number of mites increased (De Jong et al 1982;Schneider and Drescher, 1987;Bowen-Walker and Gunn, 2001;Duay et al 2003;Annoscia et al 2012). A comparison between the degree of weight reduction between mite infested and uninfested individuals of surviving and susceptible honeybee populations is given in Table 1.…”

Section: Effect Of Varroa Parasitism On the Physiological Parameters supporting

confidence: 51%

Resistance rather than tolerance explains survival of savannah honeybees (Apis mellifera scutellata) to infestation by the parasitic mite Varroa destructor

et al. 2015

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SUMMARYVarroa destructor is considered the most damaging parasite affecting honeybees (Apis mellifera L.). However, some honeybee populations such as the savannah honeybee (A. m. scutellata) can survive mite infestation without treatment. It is unclear if survival is due to resistance mechanisms decreasing parasite reproduction or to tolerance mechanisms decreasing the detrimental effects of mites on the host. This study investigates both aspects by quantifying the reproductive output of V. destructor and its physiological costs at the individual host level. Costs measured were not consistently lower when compared to susceptible honeybee populations, indicating a lack of tolerance. In contrast, reproduction of V. destructor mites was distinctly lower than in susceptible populations. There was a higher proportion of infertile individuals and the reproductive success of fertile mites was lower than measured to date, even in surviving populations. Our results suggest that survival of savannah honeybees is based on resistance rather than tolerance to this parasite. We identified traits that may be useful for breeding programs aimed at increasing the survival of susceptible populations. African honeybees may have benefited from a lack of human interference, allowing natural selection to shape a population of honeybees that is more resistant to Varroa mite infestation.2

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“…Hrassnigg and Crailsheim (2005) reviewed differences in the physiology of drones and workers, and provided tables summarising the content of water, glycogen, lipids and protein for different life stages. Many of the cited references are very old.…”

Section: Discussionmentioning

confidence: 99%

Resistance of developing honeybee larvae during chronic exposure to dietary nicotine

Human

Archer

Rand

et al. 2014

Journal of Insect Physiology

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The effects of pesticides on honeybee larvae are less understood than for adult bees, even though larvae are chronically exposed to pesticide residues that accumulate in comb and food stores in the hive. We investigated how exposure to a plant alkaloid, nicotine, affects survival, growth and body composition of honeybee larvae. Larvae of Apis mellifera scutellata were reared in vitro and fed throughout development on standard diets with nicotine included at concentrations from 0 to 1000 µg/100 g diet. Overall mortality across all nicotine treatments was low, averaging 9.8 % at the prepupal stage and 18.1 % at the whiteeyed pupal stage, but survival was significantly reduced by nicotine. The mass of prepupae and white-eyed pupae was not affected by nicotine. In terms of body composition, nicotine affected water content but did not influence either protein or lipid stores of white-eyed pupae.We attribute the absence of consistent negative effects of dietary nicotine to detoxification mechanisms in developing honeybees, which enable them to resist both natural and synthetic xenobiotics.

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Differences in drone and worker physiology in honeybees (Apis mellifera)

Cited by 157 publications

References 194 publications

Age, caste, and behavior determine the replicative activity of intestinal stem cells in honeybees (Apis mellifera L.)

Age, caste, and behavior determine the replicative activity of intestinal stem cells in honeybees (Apis mellifera L.)

Resistance rather than tolerance explains survival of savannah honeybees (Apis mellifera scutellata) to infestation by the parasitic mite Varroa destructor

Resistance of developing honeybee larvae during chronic exposure to dietary nicotine

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