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dc.contributor.authorVesala, Laura
dc.contributor.authorSalminen, Tiina
dc.contributor.authorKoštál, Vladimir
dc.contributor.authorZahradnícková, Helen
dc.contributor.authorHoikkala, Anneli
dc.date.accessioned2017-02-27T12:41:48Z
dc.date.available2017-02-27T12:41:48Z
dc.date.issued2012
dc.identifier.citationVesala, L., Salminen, T., Koštál, V., Zahradnícková, H., & Hoikkala, A. (2012). Myo-inositol as a main metabolite in overwintering flies: seasonal metabolomic profiles and cold stress tolerance in a northern drosophilid fly. <i>Journal of Experimental Biology</i>, <i>215</i>(16), 2891-2897. <a href="https://doi.org/10.1242/jeb.069948" target="_blank">https://doi.org/10.1242/jeb.069948</a>
dc.identifier.otherCONVID_21734101
dc.identifier.otherTUTKAID_53008
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/53112
dc.description.abstractCoping with seasonal changes in temperature is an important factor underlying the ability of insects to survive over the harsh winter conditions in the northern temperate zone, and only a few drosophilids have been able to colonize sub-polar habitats. Information on their winter physiology is needed as it may shed light on the adaptive mechanisms of overwintering when compared with abundant data on the thermal physiology of more southern species, such as Drosophila melanogaster. Here we report the first seasonal metabolite analysis in a Drosophila species. We traced changes in the cold tolerance and metabolomic profiles in adult Drosophila montana flies that were exposed to thermoperiods and photoperiods similar to changes in environmental conditions of their natural habitat in northern Finland. The cold tolerance of diapausing flies increased noticeably towards the onset of winter; their chill coma recovery times showed a seasonal minimum between late autumn and early spring, whereas their survival after cold exposure remained high until late spring. The flies had already moderately accumulated glucose, trehalose and proline in autumn, but the single largest change occurred in myo-inositol concentrations. This increased up to 400-fold during the winter and peaked at 147 nmol mg−1 fresh mass, which is among the largest reported accumulations of this compound in insects.
dc.language.isoeng
dc.publisherThe Company of Biologists
dc.relation.ispartofseriesJournal of Experimental Biology
dc.subject.otherkylmäkoomasta toipuminen
dc.subject.otherkryoprotektantit
dc.subject.otherkylmään sopeutuminen
dc.subject.otherlisääntymisdiapaussi
dc.subject.othervuodenaikaisuus
dc.subject.otherchill coma recovery
dc.subject.othercold tolerance
dc.subject.othercryoprotectant
dc.subject.othercold acclimation
dc.subject.otherreproductive diapause
dc.subject.otherseasonality
dc.titleMyo-inositol as a main metabolite in overwintering flies: seasonal metabolomic profiles and cold stress tolerance in a northern drosophilid fly
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201212123333
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosDepartment of Biological and Environmental Scienceen
dc.contributor.oppiaineEkologia ja evoluutiobiologiafi
dc.contributor.oppiaineEcology and Evolutionary Biologyen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2012-12-12T04:30:12Z
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.format.pagerange2891-2897
dc.relation.issn0022-0949
dc.relation.numberinseries16
dc.relation.volume215
dc.type.versionpublishedVersion
dc.rights.copyright© 2012 The Company of Biologists Ltd. Published in this repository with the kind permission of the publisher.
dc.rights.accesslevelopenAccessfi
dc.subject.ysokylmänkestävyys
jyx.subject.urihttp://www.yso.fi/onto/yso/p3062
dc.relation.doi10.1242/jeb.069948
dc.type.okmA1


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