000022564 001__ 22564 000022564 005__ 20200423203253.0 000022564 0247_ $$2pmid$$apmid:23049779 000022564 0247_ $$2pmc$$apmc:PMC3458014 000022564 0247_ $$2DOI$$a10.1371/journal.pone.0045255 000022564 0247_ $$2WOS$$aWOS:000309556100033 000022564 0247_ $$2Handle$$a2128/7561 000022564 037__ $$aPreJuSER-22564 000022564 041__ $$aeng 000022564 082__ $$a500 000022564 1001_ $$0P:(DE-HGF)0$$aBergougnoux, V.$$b0 000022564 245__ $$aEffect of Blue Light on Endogenous Isopentenyladenine and Endoreduplication during Photomorphogenesis and De-Etiolation of Tomato (Solanum lycopersicum L.) Seedlings 000022564 260__ $$aLawrence, Kan.$$bPLoS$$c2012 000022564 300__ $$ae45255 000022564 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article 000022564 3367_ $$2DataCite$$aOutput Types/Journal article 000022564 3367_ $$00$$2EndNote$$aJournal Article 000022564 3367_ $$2BibTeX$$aARTICLE 000022564 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000022564 3367_ $$2DRIVER$$aarticle 000022564 440_0 $$018181$$aPLOS One$$v7$$x1932-6203$$y9 000022564 500__ $$aRecord converted from VDB: 12.11.2012 000022564 520__ $$aLight is one of the most important factor influencing plant growth and development all through their life cycle. One of the well-known light-regulated processes is de-etiolation, i.e. the switch from skotomorphogenesis to photomorphogenesis. The hormones cytokinins (CKs) play an important role during the establishment of photomorphogenesis as exogenous CKs induced photomorphogenesis of dark-grown seedlings. Most of the studies are conducted on the plant model Arabidopsis, but no or few information are available for important crop species, such as tomato (Solanum lycopersicum L.). In our study, we analyzed for the first time the endogenous CKs content in tomato hypocotyls during skotomorphogenesis, photomorphogenesis and de-etiolation. For this purpose, two tomato genotypes were used: cv. Rutgers (wild-type; WT) and its corresponding mutant (7B-1) affected in its responses to blue light (BL). Using physiological and molecular approaches, we identified that the skotomorphogenesis is characterized by an endoreduplication-mediated cell expansion, which is inhibited upon BL exposure as seen by the accumulation of trancripts encoding CycD3, key regulators of the cell cycle. Our study showed for the first time that iP (isopentenyladenine) is the CK accumulated in the tomato hypocotyl upon BL exposure, suggesting its specific role in photomorphogenesis. This result was supported by physiological experiments and gene expression data. We propose a common model to explain the role and the relationship between CKs, namely iP, and endoreduplication during de-etiolation and photomorphogenesis. 000022564 536__ $$0G:(DE-Juel1)FUEK407$$2G:(DE-HGF)$$aTerrestrische Umwelt$$cP24$$x0 000022564 588__ $$aDataset connected to Pubmed 000022564 7001_ $$0P:(DE-HGF)0$$aZalabák, D.$$b1 000022564 7001_ $$0P:(DE-HGF)0$$aJandová, M.$$b2 000022564 7001_ $$0P:(DE-HGF)0$$aNovák, O.$$b3 000022564 7001_ $$0P:(DE-Juel1)129420$$aWiese-Klinkenberg, A.$$b4$$uFZJ 000022564 7001_ $$0P:(DE-HGF)0$$aFellner, M.$$b5 000022564 773__ $$0PERI:(DE-600)2267670-3$$a10.1371/journal.pone.0045255$$gVol. 7, p. e45255$$n9$$pe45255$$q7<e45255$$tPLoS one$$v7$$x1932-6203$$y2012 000022564 8567_ $$2Pubmed Central$$uhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC3458014 000022564 8564_ $$uhttps://juser.fz-juelich.de/record/22564/files/FZJ-22564.pdf$$yOpenAccess$$zPublished final document. 000022564 8564_ $$uhttps://juser.fz-juelich.de/record/22564/files/FZJ-22564.jpg?subformat=icon-1440$$xicon-1440$$yOpenAccess 000022564 8564_ $$uhttps://juser.fz-juelich.de/record/22564/files/FZJ-22564.jpg?subformat=icon-180$$xicon-180$$yOpenAccess 000022564 8564_ $$uhttps://juser.fz-juelich.de/record/22564/files/FZJ-22564.jpg?subformat=icon-640$$xicon-640$$yOpenAccess 000022564 909CO $$ooai:juser.fz-juelich.de:22564$$pdnbdelivery$$pVDB$$pdriver$$popen_access$$popenaire 000022564 9141_ $$y2012 000022564 915__ $$0LIC:(DE-HGF)CCBY3$$2HGFVOC$$aCreative Commons Attribution CC BY 3.0 000022564 915__ $$0StatID:(DE-HGF)0010$$2StatID$$aJCR/ISI refereed 000022564 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR 000022564 915__ $$0StatID:(DE-HGF)0111$$2StatID$$aWoS$$bScience Citation Index Expanded 000022564 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection 000022564 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bThomson Reuters Master Journal List 000022564 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS 000022564 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline 000022564 915__ $$0StatID:(DE-HGF)0310$$2StatID$$aDBCoverage$$bNCBI Molecular Biology Database 000022564 915__ $$0StatID:(DE-HGF)0500$$2StatID$$aDBCoverage$$bDOAJ 000022564 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess 000022564 915__ $$0StatID:(DE-HGF)1040$$2StatID$$aDBCoverage$$bZoological Record 000022564 915__ $$0StatID:(DE-HGF)1050$$2StatID$$aDBCoverage$$bBIOSIS Previews 000022564 9131_ $$0G:(DE-Juel1)FUEK407$$1G:(DE-HGF)POF2-240$$2G:(DE-HGF)POF2-200$$bErde und Umwelt$$kP24$$lTerrestrische Umwelt$$vTerrestrische Umwelt$$x0 000022564 9132_ $$0G:(DE-HGF)POF3-582$$1G:(DE-HGF)POF3-580$$2G:(DE-HGF)POF3-500$$aDE-HGF$$bKey Technologies$$lKey Technologies for the Bioeconomy$$vPlant Science$$x0 000022564 9201_ $$0I:(DE-Juel1)IBG-2-20101118$$gIBG$$kIBG-2$$lPflanzenwissenschaften$$x0 000022564 970__ $$aVDB:(DE-Juel1)139211 000022564 980__ $$aVDB 000022564 980__ $$aConvertedRecord 000022564 980__ $$ajournal 000022564 980__ $$aI:(DE-Juel1)IBG-2-20101118 000022564 980__ $$aUNRESTRICTED 000022564 980__ $$aJUWEL 000022564 980__ $$aFullTexts 000022564 9801_ $$aFullTexts