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2012 ; 3
(4
): 1271-98
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General Stress Responses in the Honey Bee
#MMPMID26466739
Even N
; Devaud JM
; Barron AB
Insects
2012[Dec]; 3
(4
): 1271-98
PMID26466739
show ga
The biological concept of stress originated in mammals, where a "General
Adaptation Syndrome" describes a set of common integrated physiological responses
to diverse noxious agents. Physiological mechanisms of stress in mammals have
been extensively investigated through diverse behavioral and physiological
studies. One of the main elements of the stress response pathway is the endocrine
hypothalamo-pituitary-adrenal (HPA) axis, which underlies the "fight-or-flight"
response via a hormonal cascade of catecholamines and corticoid hormones.
Physiological responses to stress have been studied more recently in insects:
they involve biogenic amines (octopamine, dopamine), neuropeptides (allatostatin,
corazonin) and metabolic hormones (adipokinetic hormone, diuretic hormone). Here,
we review elements of the physiological stress response that are or may be
specific to honey bees, given the economical and ecological impact of this
species. This review proposes a hypothetical integrated honey bee stress pathway
somewhat analogous to the mammalian HPA, involving the brain and, particularly,
the neurohemal organ corpora cardiaca and peripheral targets, including energy
storage organs (fat body and crop). We discuss how this system can organize rapid
coordinated changes in metabolic activity and arousal, in response to adverse
environmental stimuli. We highlight physiological elements of the general stress
responses that are specific to honey bees, and the areas in which we lack
information to stimulate more research into how this fascinating and vital insect
responds to stress.