Research Project
Grant-in-Aid for Young Scientists (B)
Auxins are a group of phytohormones that regulate many aspects of plant growth and development. Phenylacetic acid (PAA) has been known as a naturally-occurring auxin as well as indole-3-acetic acid (IAA), but its physiological function is still unknown. Here we elucidate that PAA is produced from phenylpyruvate by YUCCA flavin-containing monooxygenases, which catalyze a rate-limiting step in IAA biosynthesis. We further show that PAA is recognized by IAA receptors TIR1/AFBs, whereas not by IAA polar transporters, suggesting that IAA and PAA play different physiological roles in plants.
All 2013 2012 2011 2010 Other
All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (27 results) Book (1 results) Remarks (4 results)
J Biol Chem.
Volume: 288(3) Pages: 1448-1457
The Journal of Biological Chemistry
Volume: 288 Issue: 3 Pages: 1448-1457
10.1074/jbc.m112.424077
Proc Natl Acad Sci U S A.
Volume: 108(45) Pages: 18518-18523
Volume: 108(45) Pages: 18512-18517
Proc.Natl.Acad.Sci.USA.
Volume: 108 Issue: 45 Pages: 18512-18517
10.1073/pnas.1108434108
Proc Natl Acad Sci U S A
Volume: 108(45) Issue: 45 Pages: 18518-18523
10.1073/pnas.1108436108
http://labs.psc.riken.jp/grrt/