Controls theanine allocation
A plasma membrane-localized cationic amino acid transporter whose expression correlates strongly with the stem-to-leaf theanine ratio in new shoots; suppressing its expression increases theanine content in young leaves.
Zhang, Shupei · Lin, Shijia · Zhang, Yiwen · Zhang, Xinxin · Zhu, Biying · Ham, Byung-kook · Chen, Jieyu · Yang, Tianyuan · Wan, Xiaochun · Zhang, Zhaoliang
Plant Physiology 2025
Stem-to-leaf theanine ratio in new shoots of 11 cultivars ranged from 3.8 to 8.8
Repression of CsCAT1 increased theanine content in young leaves and the leaf-to-stem theanine ratio