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. 2021 Aug 26;73(1):182–196. doi: 10.1093/jxb/erab391

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© The Author(s) 2021. Published by Oxford University Press on behalf of the Society for Experimental Biology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 8. — Model for SIB-WRKY75interaction in ABA-mediated leaf senescence and seed germination. Both SIBs and WRKY75 are up-regulated during leaf senescence and induced by ABA. The ABA pathway generally promotes leaf senescence in Arabidopsis. SIBs interact with WRKY75 to inhibit its transcriptional function. GLKs negatively modulate ABA-mediated leaf senescence but positively modulate ABA-mediated seed germination. WRKY75 directly binds to the promoters of GLKs to repress their expression during ABA-mediated leaf senescence and seed germination.