Root hair formation at the root-hypocotyl junction in CPC-LIKE MYB double and triple mutants of Arabidopsis

Plant Signaling & Behavior
Takuji WadaRumi Tominaga-Wada

Abstract

In Arabidopsis thaliana, R3-type MYB genes, CAPRICE (CPC) and its family of genes including TRIPTYCHON (TRY), ENHANCER OF TRY AND CPC1 (ETC1), ETC2 and CPC-LIKE MYB3 cooperatively regulate epidermal cell differentiation. Root hair formation is greatly reduced by a mutation in CPC, and try and etc1 enhance this phenotype. In this study, we demonstrate that CPC, TRY and ETC1 are also involved in root hair formation at the root-hypocotyl junction. The cpc try and cpc etc1 double mutants showed a reduced number of root hairs in that area. Additionally, the expression of ETC1::GUS was higher near this area. These results suggest that CPC family of genes also cooperatively regulates root hair formation at the root-hypocotyl junction in unique ways.

References

Sep 1, 1996·The Plant Journal : for Cell and Molecular Biology·M Di CristinaG Morelli
Dec 1, 1993·The Plant Cell·J. C. LarkinM. D. Marks
Dec 9, 2004·The Plant Journal : for Cell and Molecular Biology·Jeffrey J EschM David Marks
Oct 13, 2007·Developmental Biology·Marissa SimonJohn Schiefelbein
Feb 9, 2008·Annual Review of Plant Biology·Tetsuya IshidaTakuji Wada
Jan 5, 2011·International Review of Cell and Molecular Biology·Rumi Tominaga-WadaTakuji Wada
Apr 11, 2012·International Journal of Molecular Sciences·Rumi Tominaga-Wada, Yuka Nukumizu
Mar 25, 2014·Frontiers in Plant Science·Rumi Tominaga-Wada, Takuji Wada

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Methods Mentioned

BETA
transgenic

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