Journal Article 4QD397987E 72S9A8J5GW Abscisic Acid Abscisic acid Amino acid metabolism Arabidopsis Arabidopsis Proteins EC 2.7.1.- EC 2.7.1.137 EC 2.7.11.1 HISN2 Histidine LRX1 LRX1ΔE14 Phosphatidylinositol 3-Kinases Research Support, Non-U.S. Gov't TOR TOR Serine-Threonine Kinases TOR protein, Arabidopsis calcium signalling epigenetics halophyte histidine deficiency phospholipid signalling programmed cell death reactive oxygen species signalling retrograde signalling root growth root hair