E-MEXP-2639 - Transcription profiling by array of Arabidopsis pxy mutants to investigate the compensatory mechanism that promotes vascular cell division in the absence of PXY
Submitted on 23 March 2010, last updated on 11 April 2013, released on 11 April 2013
In gain of function studies, phloem intercalated with xylem (PXY) signalling has previously been shown to promote vascular cell division. However, no reduction in vascular cell division has been reported in pxy mutants. This suggests that a compensatory mechanism promotes vascular cell division in the absence of PXY. To uncover this mechanism, the transcriptome of pxy mutants was compared to wild type counterparts.
transcription profiling by array, co-expression, in vivo, strain or line
Plant vascular cell division is maintained by an interaction between PXY and ethylene signalling. Etchells JP, Provost CM, Turner SR. PLoS Genet 8(11):e1002997 (2012), Europe PMC 23166504
WOX4 and WOX14 act downstream of the PXY receptor kinase to regulate plant vascular proliferation independently of any role in vascular organisation. J. Peter Etchells; Claire M. Provost; Laxmi Mishra; Simon R. Turner. Development 140(10):2224 (2013), Europe PMC 23578929