Supercooling and freezing as eco-physiological alternatives rather than mutually exclusive strategies: A case study in Pyrrhocoris apterus

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F18%3A00495566" target="_blank" >RIV/60077344:_____/18:00495566 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jinsphys.2018.10.006" target="_blank" >http://dx.doi.org/10.1016/j.jinsphys.2018.10.006</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jinsphys.2018.10.006" target="_blank" >10.1016/j.jinsphys.2018.10.006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Supercooling and freezing as eco-physiological alternatives rather than mutually exclusive strategies: A case study in Pyrrhocoris apterus

Popis výsledku v původním jazyce

Overwintering insects are categorized either as freeze tolerant or freeze avoiding(supercooling). Some supercooling insects, however, were found to survive in frozen state when freezing occurred through inoculation by external ice at mild subzero temperatures. We assessed the potential relevance of inoculative freezing and freeze tolerance strategy in an insect that was so far considered as a classical example of a ‘supercooler’, the linden bug (Pyrrhocoris apterus). Here we show that: 1) overwintering microhabitat of P. apterus presents a high risk of inoculative freezing, 2) overwinering P. apterus will readily freeze when in contact with external ice, 3) inoculatively frozen insects will survive, 4) the limits of freeze tolerance are set by the critical fraction of ice, and 5) the evolution of overwintering strategy in P. apterus might have been driven, at least partially, by a necessity to seasonally suppress the actual ice fraction below the critical ice fraction. Since many insect species overwinter in habitats similar to that of P. apterus, the ability to tolerate freezing after inoculation by external ice crystals could be much more common among ‘supercooling’ insects than it is currently appreciated.n

Název v anglickém jazyce

Supercooling and freezing as eco-physiological alternatives rather than mutually exclusive strategies: A case study in Pyrrhocoris apterus

Popis výsledku anglicky

Overwintering insects are categorized either as freeze tolerant or freeze avoiding(supercooling). Some supercooling insects, however, were found to survive in frozen state when freezing occurred through inoculation by external ice at mild subzero temperatures. We assessed the potential relevance of inoculative freezing and freeze tolerance strategy in an insect that was so far considered as a classical example of a ‘supercooler’, the linden bug (Pyrrhocoris apterus). Here we show that: 1) overwintering microhabitat of P. apterus presents a high risk of inoculative freezing, 2) overwinering P. apterus will readily freeze when in contact with external ice, 3) inoculatively frozen insects will survive, 4) the limits of freeze tolerance are set by the critical fraction of ice, and 5) the evolution of overwintering strategy in P. apterus might have been driven, at least partially, by a necessity to seasonally suppress the actual ice fraction below the critical ice fraction. Since many insect species overwinter in habitats similar to that of P. apterus, the ability to tolerate freezing after inoculation by external ice crystals could be much more common among ‘supercooling’ insects than it is currently appreciated.n

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Insect Physiology

ISSN

0022-1910

e-ISSN

—

Svazek periodika

111

Číslo periodika v rámci svazku

NOV-DEC 2018

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

53-62

Kód UT WoS článku

000452584500008

EID výsledku v databázi Scopus

2-s2.0-85055695686