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OsWRKY18 attenuates proteasomal degradation of OsbZIP48 to orchestrate zinc homeostasis in rice.

The New phytologist - 1 Aug 2026

Du Binbin, Li Hui, Zhao Haoqiang, Wang Xiaojuan, Wang Junjie, Wang Wujian, Qi Yue, Zhang Bingxin, Zheng Luqing

Abstract excerpt

Zinc (Zn) is an essential micronutrient for plants, and its deficiency in soils severely limits crop yield and grain nutritional quality. While the F-bZIP transcription factor OsbZIP48 is known to play a central role in maintaining Zn homeostasis in rice, the post-translational mechanisms that regulate its activity remain elusive. Here, we identify the WRKY transcription factor OsWRKY18 as a key...

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PMID: 42174383
DOI: 10.1111/nph.71290
PMCID: PMC13373795

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