About: Insect cold tolerance and repair of chill-injury at fluctuating thermal regimes: Role of 70kDa heat shock protein expression

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About: Insect cold tolerance and repair of chill-injury at fluctuating thermal regimes: Role of 70kDa heat shock protein expression Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Expression of heat shock proteins has been proposed as an underlying mechanism of increased cold tolerance in insects exposed to fluctuating thermal regimes (FTRs) in comparison to constant low temperatures (CLTs). We found that the levels of /Pahsp70/ mRNA increase by up to 3 orders in the linden bugs, /Pyrrhocoris apterus/ exposed to FTR -5^(o)C (22h)/ 25^(o)C (2h). The 2h-long warm pulses, however, were not sufficient for accumulation of PaHSP70 protein and thus no significant difference in expression of PaHSP70 protein was detected between FTR and CLT regimes. Hence, we conclude that the accumulation of PaHSP70 protein is not the mechanism underlying the increased cold tolerance in /P. apterus/ at the particular FTR used in this study. The relevance of some other possible mechanisms is discussed. Expression of heat shock proteins has been proposed as an underlying mechanism of increased cold tolerance in insects exposed to fluctuating thermal regimes (FTRs) in comparison to constant low temperatures (CLTs). We found that the levels of /Pahsp70/ mRNA increase by up to 3 orders in the linden bugs, /Pyrrhocoris apterus/ exposed to FTR -5^(o)C (22h)/ 25^(o)C (2h). The 2h-long warm pulses, however, were not sufficient for accumulation of PaHSP70 protein and thus no significant difference in expression of PaHSP70 protein was detected between FTR and CLT regimes. Hence, we conclude that the accumulation of PaHSP70 protein is not the mechanism underlying the increased cold tolerance in /P. apterus/ at the particular FTR used in this study. The relevance of some other possible mechanisms is discussed. (en)
Title	Insect cold tolerance and repair of chill-injury at fluctuating thermal regimes: Role of 70kDa heat shock protein expression Insect cold tolerance and repair of chill-injury at fluctuating thermal regimes: Role of 70kDa heat shock protein expression (en)
skos:prefLabel	Insect cold tolerance and repair of chill-injury at fluctuating thermal regimes: Role of 70kDa heat shock protein expression Insect cold tolerance and repair of chill-injury at fluctuating thermal regimes: Role of 70kDa heat shock protein expression (en)
skos:notation	RIV/60077344:_____/09:00333184!RIV10-AV0-60077344
http://linked.open...avai/riv/aktivita	P V Z
http://linked.open...avai/riv/aktivity	P(GA206/07/0269), V, Z(AV0Z50070508)
http://linked.open...iv/cisloPeriodika	5
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Tollarová, Michaela Košťál, Vladimír
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Biologické centrum AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	319695
http://linked.open...ai/riv/idVysledku	RIV/60077344:_____/09:00333184
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	insect; cold tolerance; heat shock proteins (en)
http://linked.open.../riv/klicoveSlovo	cold tolerance heat shock proteins insect
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[819A71A8F14C]
http://linked.open...i/riv/nazevZdroje	Cryo-letters
http://linked.open...in/vavai/riv/obor	ED
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Cold-acclimation in insects: Biosynthesis of cryoprotectants and restructuring of biological membranes
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	30
http://linked.open...iv/tvurceVysledku	Košťál, Vladimír Tollarová, Michaela Lalouette, L.
http://linked.open...ain/vavai/riv/wos	000272548000001
http://linked.open...n/vavai/riv/zamer	Study of the regulation of insect organism, dynamics of insect populations and function of insects in ecosystems
issn	0143-2044
number of pages	8 (xsd:int)

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