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Université de Fribourg

The auxin influx carrier, OsAUX3, regulates rice root development and responses to aluminium stress

Wang, Mei ; Qiao, JiYue ; Yu, ChenLiang ; Chen, Hao ; Sun, ChenDong ; Huang, LinZhou ; Li, ChuanYou ; Geisler, Markus ; Qian, Qian ; Jiang, De An ; Qi, YanHua

In: Plant, Cell & Environment, 2019, vol. 42, no. 4, p. 1125–1138

In rice, there are five members of the auxin carrier AUXIN1/LIKE AUX1 family; however, the biological functions of the other four members besides OsAUX1 remain unknown. Here, by using CRISPR/Cas9, we constructed two independent OsAUX3 knock‐down lines, osaux3‐1 and osaux3‐2, in wild‐type rice, Hwayoung (WT/HY) and Dongjin (WT/DJ). osaux3‐1 and osaux3‐2 have shorter primary roots...

Université de Fribourg

The auxin transporter, OsAUX1, is involved in primary root and root hair elongation and in Cd stress responses in rice (Oryza sativa L.)

Yu, ChenLiang ; Sun, ChenDong ; Shen, Chenjia ; Wang, Suikang ; Liu, Fang ; Liu, Yan ; Chen, YunLong ; Li, Chuanyou ; Qian, Qian ; Aryal, Bibek ; Geisler, Markus ; Jiang, De An ; Qi, YanHua

In: The Plant Journal, 2015, vol. 83, no. 5, p. 818–830

Auxin and cadmium (Cd) stress play critical roles during root development. There are only a few reports on the mechanisms by which Cd stress influences auxin homeostasis and affects primary root (PR) and lateral root (LR) development, and almost nothing is known about how auxin and Cd interfere with root hair (RH) development. Here, we characterize rice osaux1 mutants that have a longer PR and...