Dehydrinsbelongtoaproteinfamilywhoseexpressionmaybeinducedorenhancedbydevelopmentalprocessandenvironmentalstressesthatleadtoceldehydration.AdehydringenenamedOesDHNwasisolatedandcharacterizedfromoleaster(OleaeuropaeaL.subsp.europaea,var.sylvestris),thewildformofolive.ToelucidatethecontributionofOesDHNinthedevelopmentofdroughttolerance,itsexpressionlevelswereinvestigatedinoleasterplantsduringdevelopmentandunderdroughtstresscondition.TheinvolvementofOesDHNinplantstressresponsewasalsoevaluatedinArabidopsistransgeniclines,engineeredtooverexpressthisgene,andexposedtoacontrolledmildosmoticstress.OesDHNexpressionwasfoundtobemodulatedduringdevelopmentandinducedundermilddroughtstressinoleasterplants.Inaddition,theArabidopsistransgenicplantsshowedabettertolerancetoosmoticstressthanwild-typeplants.TheresultsdemonstratedthatOesDHNexpressionisinducedbydroughtstressandisabletoconferosmoticstresstolerance.WesuggestaroleforOesDHN,asaputativefunctionalmarkerofplantstresstolerance.

A dehydrin gene isolated from feral olive enhances drought tolerance in Arabidopsis transgenic plants.

Chiappetta A.;Muto A.;Bruno L.;Bitonti M. B.
2015

Abstract

Dehydrinsbelongtoaproteinfamilywhoseexpressionmaybeinducedorenhancedbydevelopmentalprocessandenvironmentalstressesthatleadtoceldehydration.AdehydringenenamedOesDHNwasisolatedandcharacterizedfromoleaster(OleaeuropaeaL.subsp.europaea,var.sylvestris),thewildformofolive.ToelucidatethecontributionofOesDHNinthedevelopmentofdroughttolerance,itsexpressionlevelswereinvestigatedinoleasterplantsduringdevelopmentandunderdroughtstresscondition.TheinvolvementofOesDHNinplantstressresponsewasalsoevaluatedinArabidopsistransgeniclines,engineeredtooverexpressthisgene,andexposedtoacontrolledmildosmoticstress.OesDHNexpressionwasfoundtobemodulatedduringdevelopmentandinducedundermilddroughtstressinoleasterplants.Inaddition,theArabidopsistransgenicplantsshowedabettertolerancetoosmoticstressthanwild-typeplants.TheresultsdemonstratedthatOesDHNexpressionisinducedbydroughtstressandisabletoconferosmoticstresstolerance.WesuggestaroleforOesDHN,asaputativefunctionalmarkerofplantstresstolerance.
dehydrin; olea
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/143748
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