Abstract：
:Studies of adaptation to stressful environments have frequently encountered cross resistance. This has prompted the hypothesis that certain adaptations confer resistance to multiple stressors. Some of the genes and mechanisms conferring stress resistance have been identified, however, the generality and basis of stress adaptation and cross resistance is still unclear. We investigated several physiological traits that have been previously linked to increased stress resistance: Hsp70 expression, fat content and dopamine levels. Additionally, we studied a behavioural trait, locomotor activity, as a proxy for the physiological state of the organisms. Physiology is the mechanistic link between resistance phenotype and underlying genetic background, and provides insights into the background and generality of cross resistance and correlated responses to selection for stress resistance. We assessed the relationship between the measured traits and stress resistance in a set of lines selected for increased resistance to several environmental stressors. We found that, although all physiological traits displayed significant differentiation among selection regimes, none were consistently associated with increased general stress resistance. This demonstrates that directional changes in Hsp70 expression level, dopamine level and fat content occur in response to the specific requirements of the different stress regimes, rather than as a general response to stress.
journal_name
J Insect Physioljournal_title
Journal of insect physiologyauthors
Sørensen JG,Vermeulen CJ,Flik G,Loeschcke Vdoi
10.1016/j.jinsphys.2009.05.002subject
Has Abstractpub_date
2009-08-01 00:00:00pages
700-6issue
8eissn
0022-1910issn
1879-1611pii
S0022-1910(09)00203-0journal_volume
55pub_type
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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更新日期：2008-05-01 00:00:00
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pub_type： 杂志文章
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更新日期：2012-02-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2017.09.001
更新日期：2017-10-01 00:00:00
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pub_type： 杂志文章
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pub_type： 杂志文章
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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更新日期：2005-04-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章,评审
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更新日期：2010-10-01 00:00:00
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pub_type： 杂志文章
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更新日期：2010-01-01 00:00:00
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pub_type： 杂志文章
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更新日期：2015-11-01 00:00:00
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pub_type： 杂志文章
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2008.01.003
更新日期：2008-04-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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pub_type： 杂志文章
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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更新日期：2010-01-01 00:00:00
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更新日期：2007-06-01 00:00:00
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pub_type： 杂志文章
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更新日期：2001-11-01 00:00:00
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pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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更新日期：2014-06-01 00:00:00
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pub_type： 杂志文章
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更新日期：2002-04-01 00:00:00
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pub_type： 杂志文章
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