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Auxin signaling through SCF TIR1/AFBs mediates feedback regulation of IAA biosynthesis
Auxin signaling through SCF TIR1/AFBs mediates feedback regulation of IAA biosynthesisopenaire
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Adenylate cyclase activity of TIR1/AFB auxin receptors in plants
Nature, 2022The phytohormone auxin is the major coordinative signal in plant development1, mediating transcriptional reprogramming by a well-established canonical signalling pathway. TRANSPORT INHIBITOR RESPONSE 1 (TIR1)/AUXIN-SIGNALING F-BOX (AFB) auxin receptors are F-box subunits of ubiquitin ligase complexes.
Linlin Qi +2 more
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The F-box protein TIR1 is an auxin receptor
Nature, 2005The plant hormone auxin regulates diverse aspects of plant growth and development. Recent studies indicate that auxin acts by promoting the degradation of the Aux/IAA transcriptional repressors through the action of the ubiquitin protein ligase SCF(TIR1). The nature of the signalling cascade that leads to this effect is not known.
Nihal Dharmasiri +2 more
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Mechanism of auxin perception by the TIR1 ubiquitin ligase
Nature, 2007 Auxin is a pivotal plant hormone that controls many aspects of plant growth and development. Perceived by a small family of F-box proteins including transport inhibitor response 1 (TIR1), auxin regulates gene expression by promoting SCF ubiquitin-ligase-catalysed degradation of the Aux/IAA transcription repressors, but how the TIR1 F-box protein senses
Xu Tan, Mark Estelle, Ning Zheng
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Rapid and reversible root growth inhibition by TIR1 auxin signalling [PDF]
Nature Plants, 2018 The phytohormone auxin is the information carrier in a plethora of developmental and physiological processes in plants1. It has been firmly established that canonical, nuclear auxin signalling acts through regulation of gene transcription2. Here, we combined microfluidics, live imaging, genetic engineering and computational modelling to reanalyse the ...
Matyáš Fendrych +2 more
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The Arabidopsis F-box protein TIR1 is an auxin receptor
Nature, 2005Despite 100 years of evidence showing a pivotal role for indole-3-acetic acid (IAA or auxin) in plant development, the mechanism of auxin perception has remained elusive. Central to auxin response are changes in gene expression, brought about by auxin-induced interaction between the Aux/IAA transcriptional repressor proteins and the ubiquitin-ligase ...
Stefan Kepinski, Ottoline Leyser
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Auxin canalization and vascular tissue formation by TIR1/AFB‐mediated auxin signaling in Arabidopsis [PDF]
New Phytologist, 2020 Summary Plant survival depends on vascular tissues, which originate in a self‐organizing manner as strands of cells co‐directionally transporting the plant hormone auxin. The latter phenomenon (also known as auxin canalization) is classically hypothesized to be regulated by auxin itself via the effect of this hormone on the polarity of its own ...
Ewa Mazur, Ivan Kulik, Jakub Hajný
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Cloning and functional characterization of auxin receptor TIR1 in Gossypium hirsutum
Acta Physiologiae Plantarum, 2021Transport inhibitor response 1 (TIR1), as an F-box family protein, is a nucleus receptor of auxin in plants. It is essential in the auxin signal transduction pathway and the expression of auxin-responsive genes. As the most important hormone in plants, auxin has a great influence on the ovule and fiber development of cotton (Gossypium hirsutum L ...
Yu Wu +7 more
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FERONIA-mediated TIR1/AFB2 oxidation stimulates auxin signaling in Arabidopsis
Molecular PlantThe phytohormone auxin plays a pivotal role in governing plant growth and development. Although the TRANSPORT INHIBITOR RESPONSE1/AUXIN SIGNALING F-BOX (TIR1/AFB) receptors function in both the nucleus and cytoplasm, the mechanism governing the distribution of TIR1/AFBs between these cellular compartments remains unknown.
Baiyan Lu +10 more
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miR393 inhibits in vitro shoot regeneration in Arabidopsis thaliana via repressing TIR1
Plant Science, 2018A large number of genes are involved in the control of shoot regeneration from in vitro cultured plant material. The abundance of the miR393 was different between regenerable and non-regenerable calli induced from Arabidopsis thaliana explants. The regenerability of root explants derived from p35S:miR393a (the miR393a over-expressing line) was shown ...
Long, Wang +3 more
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