Creation of essential technologies to utilize carbon dioxide as a resource through the enhancement of plant productivity and the exploitation of plant products

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Hiroyuki Kasahara (Professor, The Global Innovation Research Organization, Tokyo University of Agriculture and Technology)

Regulation of organ formation by manipulation of auxin biosynthesis in plants

 The phytohormone auxin plays a critical role in the regulation of plant growth and development. The regulation of organ formation by the spatiotemporal manipulation of auxin biosynthesis potentially increases biomass, secondary metabolite and crop productions. Plants have several distinct pathways for biosynthesis of auxin. This project focuses on the regulation of organ formation by the spatiotemporal manipulation of several auxin biosynthesis pathways in plants.



Qingguo Chen, Xinhua Dai, Henrique De-Paoli, Youfa Cheng, Yumiko Takebayashi, Hiroyuki Kasahara, Yuji Kamiya, and Yunde Zhao, Auxin overproduction in shoots cannot rescue auxin deficiencies in Arabidopsis roots, Plant Cell Physiol., published online February 21, 2014, doi: 10.1093/pcp/pcu039

Keita Tanaka, Ken-ichiro Hayashi, Masahiro Natsume, Yuji Kamiya, Hitoshi Sakakibara, Hiroshi Kawaide, Hiroyuki Kasahara, UGT74D1 catalyzes the glucosylation of 2-oxindole-3-acetic acid in the auxin metabolic pathway in Arabidopsis, Plant Cell Physiol., published online November 26, 2013, doi: 10.1093/pcp/pct173