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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
