The Aux/IAA, Sl-IAA17 regulates quality parameters over tomato fruit development

Plant Signaling & Behavior
Liyan SuChristian Chervin

Abstract

Auxin is known to be involved in all the stages of fruit development. Aux/IAAs are regulators of the auxin signaling at the transcription level. In a recent study, using RNAi strategy to limit the expression Sl-IAA17, it was shown that this tomato AuxIAA regulates fruit size mainly through altering the ploidy level of pericarp cells. Indeed, Sl-IAA17 down-regulated lines showed fruit with larger diameter, bigger volume and heavier weight than wild-type. The increase in fruit size was associated with thicker pericarp rather than larger locular spaces. The thicker pericarp was linked to larger cells harboring higher ploidy level, probably due to more active endoreduplication at the beginning of fruit development. The present report describes some additional phenotypes, not described in the initial article, among which are soluble solid content, juice pH, firmness, seed weight and fruit morphology.

References

Dec 22, 2005·The Plant Journal : for Cell and Molecular Biology·Ayako NakamuraShozo Fujioka
Feb 14, 2009·Journal of Experimental Botany·Salma ChaabouniMondher Bouzayen
Mar 18, 2010·Journal of Visualized Experiments : JoVE·Gustavo R RodríguezEsther van der Knaap
Mar 1, 2012·Plant & Cell Physiology·Corinne Audran-DelalandeMondher Bouzayen
Dec 17, 2014·Proceedings of the National Academy of Sciences of the United States of America·Mookyoung HanJeong-Yong Suh

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Citations

Dec 12, 2019·Plant Signaling & Behavior·Yanming HouShaomin Bian
Dec 14, 2018·Frontiers in Plant Science·Willian Batista-SilvaWagner L Araújo
Jun 19, 2019·International Journal of Genomics·Qingzhen WeiChonglai Bao
Jun 24, 2021·Trends in Plant Science·Jean-Philippe MauxionNathalie Gonzalez

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Methods Mentioned

BETA
transgenic

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