ANAC030 modulates leaf senescence by regulating JA biosynthesis, programmed cell death, and chlorophyll metabolism in Arabidopsis.

Estradiol-inducible overexpression of Arabidopsis Arabidopsis thaliana ANAC030 accelerates leaf senescence, while dominant repression delays it, linking ANAC030 to senescence timing.

• Why it matters: Leaf senescence is a late developmental process controlled by many signals, but the regulatory network connecting transcriptional control to hormone and cell-death pathways is unclear.
• What they did: ANAC030 localizes to the nucleus, binds the NACBS cis-element, and was tested using comparative RNA-seq, RT-qPCR, dual-LUC, EMSA, and ChIP-qPCR, including overexpression in nye1 and lox2 mutant backgrounds.
• The result: ANAC030 overexpression versus repression shows opposite JA changes and directly binds promoters of genes tied to programmed cell death, chlorophyll metabolism, and JA synthesis, promoting cell death and accelerating senescence.

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