“…Interestingly, one candidate protein identified in protoplasts expressing OsCNGC9-GFP, but not in control protoplasts expressing free GFP, was OsSAPK8, a SnRK2 protein kinase (Kobayashi et al, 2004;Sun et al, 2016) (Supplemental Table 1). A very recent study has revealed that OsSAPK8 functions as a positive regulator in response to abiotic stresses, including cold stress (Zhong et al, 2020). In addition, OST1, the homolog of rice OsSAPK8, plays a crucial role in the cold tolerance of Arabidopsis (Ding et al, 2015(Ding et al, , 2018.…”