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. 2021 Jul 1;8:159. doi: 10.1038/s41438-021-00593-0

Fig. 8. A working model of the role of MdZAT10 in apple leaf senescence.

Fig. 8

On the one hand, MdZAT10 positively regulates leaf senescence by interacting with MdABI5, enhancing the transcriptional activity of MdABI5 for MdNYC1 and MdNYE1. On the other hand, in the absence of JA, MdBT2 interacts with MdZAT10 and ubiquitinates MdZAT10 to degrade MdZAT10, thereby negatively regulating MdZAT10-promoted leaf senescence. In the present of JA, JA accelerates the degradation of MdBT2, releasing MdZAT10, which contributes to JA-induced leaf senescence.