Hormonal control of the shoot stem-cell niche

• 作 者: ZhongZhao[1]StigU.Andersen[2]KarinLjung[3]KarelDolezal[4]AndrejMiotk[5]SebastianJ.Schultheiss[6]JanU.Lohmann[5]
• 机 构: School of Life Sciences, University of Science and Technology of China
• 出 处: 2012全国植物生物学大会
• 发表日期: 2012年期

　　The classic phytohormonescytokinin and auxin play essential roles in the maintenance of stem-cell systems embedded in shoot and root meristems, and exhibit complex functional interactions.Here we show that the activity of both hormones directly converges on the promoters of two A-type ARABIDOPSIS RESPONSE REGULATOR (ARR) genes, ARR7 and ARR15, which are negative regulators of cytokininsignalling and have important meristematic functions.