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Overexpression of apple spermidine synthase 1 (MdSPDS1) leads to significant salt tolerance in tomato plants

hal.structure.identifierUniversité de Tsukuba = University of Tsukuba
dc.contributor.authorNEILY, Mohamed Hichem
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorBALDET, Pierre
hal.structure.identifierUniversité de Tsukuba = University of Tsukuba
dc.contributor.authorARFAOUI, Issam
hal.structure.identifierUniversité de Tsukuba = University of Tsukuba
dc.contributor.authorSAITO, Takeshi
hal.structure.identifierUniversité de Tsukuba = University of Tsukuba
dc.contributor.authorLI, Qiu-Li
hal.structure.identifierUniversité de Tsukuba = University of Tsukuba
dc.contributor.authorASAMIZU, Erika
hal.structure.identifierUniversité de Tsukuba = University of Tsukuba
dc.contributor.authorMATSUKURA, Chiaki
hal.structure.identifierNational Institute of Fruit Sciences
dc.contributor.authorMORIGUCHI, Takaya
hal.structure.identifierUniversité de Tsukuba = University of Tsukuba
dc.contributor.authorEZURA, Hiroshi
dc.date.issued2011
dc.identifier.issn1342-4580
dc.description.abstractEnThe aim of this research is to study the effects of salt stress during different stages of development in transgenic tomato plants overexpressing the apple spermidine synthase gene (MdSPDS1) compared to wild type (WT) plants. Under salt treatment (100 and 150 mM NaCl), tomato plants clearly displayed several stress symptoms such as impaired seedling growth, decreased chlorophyll content, reduction in fruit yield and increased electrolyte leakage (EL) in leaves. These changes were more prominent in WT plants compared to MdSPDS1 transgenic plants which accumulate significantly more polyamines, namely spermine and spermidine. The response of ascorbate peroxidase (APX) isoenzymes in tomato leaves under saline conditions was also investigated. The transcript levels of SlApx genes were significantly up regulated under 100 mM NaCl either in wild type or in transgenic plants. Under 150 mM NaCl, only transgenic plants were capable to maintain high expression of SlApx genes, whereas in WT plants the expression declined after one month treatment. As a consequence, APX activity was significantly higher in MdSPDS1 transgenic plants compared to WT under saline conditions. These results suggest that elevated APX activity might contribute largely to the protection against oxidative stress generated by NaCl treatments and thus confer salinity tolerance in tomato overexpressing MdSPDS1.
dc.language.isoen
dc.publisherJapanese Society for Plant Cell and Molecular Biology
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.title.enOverexpression of apple spermidine synthase 1 (MdSPDS1) leads to significant salt tolerance in tomato plants
dc.typeArticle de revue
dc.identifier.doi10.5511/plantbiotechnology.10.1013a
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalPlant Biotechnology
bordeaux.page33-42
bordeaux.volume28
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-02648362
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02648362v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Plant%20Biotechnology&rft.date=2011&rft.volume=28&rft.issue=1&rft.spage=33-42&rft.epage=33-42&rft.eissn=1342-4580&rft.issn=1342-4580&rft.au=NEILY,%20Mohamed%20Hichem&BALDET,%20Pierre&ARFAOUI,%20Issam&SAITO,%20Takeshi&LI,%20Qiu-Li&rft.genre=article


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