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Reversing sodium differentials between the hemolymph and hindgut speeds chill coma recovery but reduces survival in the fall field cricket, Gryllus pennsylvanicus.
Lebenzon JE, Des Marteaux LE, Sinclair BJ. Lebenzon JE, et al. Among authors: sinclair bj. Comp Biochem Physiol A Mol Integr Physiol. 2020 Jun;244:110699. doi: 10.1016/j.cbpa.2020.110699. Epub 2020 Apr 1. Comp Biochem Physiol A Mol Integr Physiol. 2020. PMID: 32247007
Therefore, while a reduced [Na(+)] differential helps crickets recover from short-term cold exposure, an increased gut Na(+) load itself appears to carry longer-term costs and promotes irreversible chilling injury....
Therefore, while a reduced [Na(+)] differential helps crickets recover from short-term cold exposure, an increased gut Na(+) load its …
Repeated freezing induces a trade-off between cryoprotection and egg production in the goldenrod gall fly, Eurosta solidaginis.
Marshall KE, Sinclair BJ. Marshall KE, et al. Among authors: sinclair bj. J Exp Biol. 2018 Aug 13;221(Pt 15):jeb177956. doi: 10.1242/jeb.177956. J Exp Biol. 2018. PMID: 29895680
Here, we examined the effect of repeatedly crossing the freezing threshold on short-term physiological parameters (metabolic reserves and cryoprotectant concentration) as well as long-term fitness-related performance (survival and egg production) in the freeze-toler …
Here, we examined the effect of repeatedly crossing the freezing threshold on short-term physiological parameters (metabolic reserves …
Does cold activate the Drosophila melanogaster immune system?
Salehipour-Shirazi G, Ferguson LV, Sinclair BJ. Salehipour-Shirazi G, et al. Among authors: sinclair bj. J Insect Physiol. 2017 Jan;96:29-34. doi: 10.1016/j.jinsphys.2016.10.009. Epub 2016 Oct 17. J Insect Physiol. 2017. PMID: 27765624
Acute cold increased circulating haemocyte concentration and the expression of Turandot-A and diptericin, but elicited a short-term decrease in the clearance of gram-positive bacteria. Sustained cold increased the expression of Turandot-A, with no effect on other measures …
Acute cold increased circulating haemocyte concentration and the expression of Turandot-A and diptericin, but elicited a short-term d …
Similar metabolic rate-temperature relationships after acclimation at constant and fluctuating temperatures in caterpillars of a sub-Antarctic moth.
Chown SL, Haupt TM, Sinclair BJ. Chown SL, et al. Among authors: sinclair bj. J Insect Physiol. 2016 Feb;85:10-6. doi: 10.1016/j.jinsphys.2015.11.010. Epub 2015 Nov 22. J Insect Physiol. 2016. PMID: 26592773
Here we examined whole animal metabolic rates, at 0 C, 5 C, 10 C and 15 C, in caterpillars of the sub-Antarctic moth, Pringleophaga marioni Viette (Tineidae), following one week acclimations to 5 C, 10 C and 15 C, and fluctuating temperatures of 0-10 C, 5-15 C, and 10-20 C. Over …
Here we examined whole animal metabolic rates, at 0 C, 5 C, 10 C and 15 C, in caterpillars of the sub-Antarctic moth, Pringleophaga marioni …
The overwintering biology of the acorn weevil, Curculio glandium in southwestern Ontario.
Udaka H, Sinclair BJ. Udaka H, et al. Among authors: sinclair bj. J Therm Biol. 2014 Aug;44:103-9. doi: 10.1016/j.jtherbio.2014.02.019. Epub 2014 Mar 7. J Therm Biol. 2014. PMID: 25086980
These conditions decreased the SCP without affecting water content, suggesting that SCP and water content are not directly coupled. Finally, long-term acclimation at 0C for six weeks slightly increased cold tolerance but also did not affect water content. ...
These conditions decreased the SCP without affecting water content, suggesting that SCP and water content are not directly coupled. Finally, …
Changes in extreme cold tolerance, membrane composition and cardiac transcriptome during the first day of thermal acclimation in the porcelain crab Petrolisthes cinctipes.
Ronges D, Walsh JP, Sinclair BJ, Stillman JH. Ronges D, et al. Among authors: sinclair bj. J Exp Biol. 2012 Jun 1;215(Pt 11):1824-36. doi: 10.1242/jeb.069658. J Exp Biol. 2012. PMID: 22573761
We examined how cold tolerance changed during the initial phase of thermal acclimation to cold and warm temperatures, as well as the persistence of cold tolerance during long-term thermal acclimation. Thermal acclimation for as little as 6 h at 8C enhanced cold tolerance d …
We examined how cold tolerance changed during the initial phase of thermal acclimation to cold and warm temperatures, as well as the persist …
The relationship between chill-coma onset and recovery at the extremes of the thermal window of Drosophila melanogaster.
Ransberry VE, MacMillan HA, Sinclair BJ. Ransberry VE, et al. Among authors: sinclair bj. Physiol Biochem Zool. 2011 Nov-Dec;84(6):553-9. doi: 10.1086/662642. Epub 2011 Oct 14. Physiol Biochem Zool. 2011. PMID: 22030848
Acclimation had a greater effect on CT(min) and CCR than short-term hardening. There was a significant positive rank correlation between CT(min) and CCR, but the relationship was demonstrably curvilinear, suggesting that although plasticity in these measures is correlated …
Acclimation had a greater effect on CT(min) and CCR than short-term hardening. There was a significant positive rank correlation betw …
The effects of CO(2) and chronic cold exposure on fecundity of female Drosophila melanogaster.
Macalpine JL, Marshall KE, Sinclair BJ. Macalpine JL, et al. Among authors: sinclair bj. J Insect Physiol. 2011 Jan;57(1):35-7. doi: 10.1016/j.jinsphys.2010.09.003. Epub 2010 Sep 30. J Insect Physiol. 2011. PMID: 20868691
Carbon dioxide and chilling are sometimes used to immobilise insects for laboratory research. Both of these methods are known to have short-term effects on behaviour and physiology in Drosophila, but their long-term impacts are unknown. ...We conclude that although …
Carbon dioxide and chilling are sometimes used to immobilise insects for laboratory research. Both of these methods are known to have short- …
Repeated stress exposure results in a survival-reproduction trade-off in Drosophila melanogaster.
Marshall KE, Sinclair BJ. Marshall KE, et al. Among authors: sinclair bj. Proc Biol Sci. 2010 Mar 22;277(1683):963-9. doi: 10.1098/rspb.2009.1807. Epub 2009 Nov 25. Proc Biol Sci. 2010. PMID: 19939842 Free PMC article.
We found that multiple cold exposures significantly decreased mortality compared with the same length of exposure in a single sustained bout, but significantly decreased fecundity (as measured by r, the intrinsic rate of increase) as well, owing to a shift in sex ratio. This chan …
We found that multiple cold exposures significantly decreased mortality compared with the same length of exposure in a single sustained bout …
Membrane remodeling and glucose in Drosophila melanogaster: a test of rapid cold-hardening and chilling tolerance hypotheses.
MacMillan HA, Guglielmo CG, Sinclair BJ. MacMillan HA, et al. Among authors: sinclair bj. J Insect Physiol. 2009 Mar;55(3):243-9. doi: 10.1016/j.jinsphys.2008.11.015. Epub 2009 Jan 20. J Insect Physiol. 2009. PMID: 19111745
Carbohydrate cryoprotectants and membrane remodeling are two main mechanisms hypothesised to increase chilling tolerance in Drosophila melanogaster, as part of both long-term (i.e., evolutionary) change and rapid cold-hardening (RCH). ...
Carbohydrate cryoprotectants and membrane remodeling are two main mechanisms hypothesised to increase chilling tolerance in Drosophila melan …
14 results