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. 2014 Mar 25;9(3):e91357. doi: 10.1371/journal.pone.0091357

Figure 11. Possible molecular mechanism of cold stress in rice.

Figure 11

Under cold stress Osa-miR319b is down-regulated, leading to the repression of its targets and possibly the up-regulation of ROS (arrow with dashed line), which in turn inhibits cold tolerance. Under cold stress DREB1/CBF is up-regulated, and Zat12 down-regulated CBF transcript expression, and account of ROS up-regulated Zat12 transcript expression which in turn increases cold tolerance. However, it is possible that Osa-miR319b induces the expression of DREB1/CBF (arrow with dashed line and question mark).