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IAA and regulation of Arabidopsis circadian rhythm

Franck, Thomas
Published in Endocytobiosis and cell research. 2001, vol. 14, p. 45-49
Abstract Decapitation of Arabidopsis floral stern suppresses elongation and any associated rate oscillation. This growth inhibition also appeared after application on intact plants of IAA transport inhibitors such as NP A. A subsequent IAA paste application on the cut surface restored growth and circadian oscillations in extension rate. These results indicate that the upper zone of the inflorescence has a major influence on floral stem extension rate and give a particular importance to auxin. Furthermore, measurement of endogenous contents of IAA and IAA-aspartate conjugate displayed that they were subjected to a circadian rhythm during Arabidopsis floral stern growth. All together, these data point out lAA as an essential factor in circadian growth rhythm regulation of Arabidopsis floral stem
Keywords ArabidopsisFloral stemGrowthAuxinPolar transportConjugationCircadian
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JOUVE, Laurent et al. IAA and regulation of Arabidopsis circadian rhythm. In: Endocytobiosis and cell research, 2001, vol. 14, p. 45-49. https://archive-ouverte.unige.ch/unige:42324

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Deposited on : 2014-12-02

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