Model for ROS signaling in LN stress responses. (IMAGE)

Science China Press

Model for ROS signaling in LN stress responses.

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LN stress induces RBOHC protein accumulation through an unknown mechanism to produce more ROS. ROS, in turn, promotes the expression of WRKY42 and WRKY58. Particularly, WRKY42 directly transactivates the expression of NRT2.1/NRT2.2/NRT2.4 by binding their promoters, thereby increasing the nitrate uptake and improving plant growth under LN conditions. Whereas WRKY58 regulates the expression of these NRT2 genes in an indirect way

 

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