AI Article Synopsis
- Auxin transport plays a key role in leaf vein patterns, supported by research on transport inhibitors and the auxin efflux transporter PIN1.
- Despite this, research has largely overlooked the vein patterns in mutants that do not respond to auxin, even though both transport and perception of auxin are vital for understanding these patterns.
- The identification of HEMIVENATA (HVE) as the same gene as CAND1 highlights the importance of ubiquitin-mediated auxin perception in vascular patterning, suggesting a need to re-evaluate the vein characteristics of other auxin-resistant mutants.
Article Abstract
Elegant work by others has highlighted the importance of auxin transport in venation patterning, an idea substantiated by the severe effects of auxin polar transport inhibitors and by the mutant phenotype and expression patterns associated with the auxin efflux transporter PIN-FORMED1 (PIN1). It is striking, therefore, that little attention has been paid to the venation patterns of mutants insensitive to this hormone, since both auxin transport and perception are crucial components in theoretical models of vascular patterning. Our finding that HEMIVENATA (HVE) is the same gene as CAND1 confirms the role of ubiquitin-mediated auxin perception in vascular patterning and sets the stage for a re-examination of the leaf venation phenotypes of other auxin-resistant mutants and additional components of the ubiquitin pathway.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2634141 | PMC |
| http://dx.doi.org/10.4161/psb.2.4.3869 | DOI Listing |
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