A model showing the role of MdPUB23 in the regulation of leaf senescence. (IMAGE)

Nanjing Agricultural University The Academy of Science

A model showing the role of MdPUB23 in the regulation of leaf senescence.

Caption

A model showing the role of MdPUB23 in the regulation of leaf senescence. MdPUB23 delays leaf senescence by promoting turnover of MdABI5. In response to ABA, inhibition of MdPUB23 results in release of MdABI5. MdABI5 physically associates with MdbHLH93 to enhance its transcriptional activity on MdSAG18, thereby promoting leaf senescence. In addition, activated MdABI5 can also accelerate leaf senescence by directly activating the expression of MdNYE1 and MdNYC1.

Credit

Horticulture Research

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