Plant Mol Biol (2017) 93:369–387 DOI 10.1007/s11103-016-0567-3 Arabidopsis ANAC069 binds to C[A/G]CG[T/G] sequences to negatively regulate salt and osmotic stress tolerance 1,2 1,3 1,3 1,3 2 Lin He · Xinxin Shi · Yanmin Wang · Yong Guo · Kejun Yang · 1,3 Yucheng Wang Received: 13 February 2016 / Accepted: 24 November 2016 / Published online: 14 December 2016 © Springer Science+Business Media Dordrecht 2016 Abstract The genes regulated by ANAC069 were further studied Key message ANAC069 binds to the DNA sequence using a gene chip on a genome-wide scale, and 339 and of C[A/G]CG[T/G] to regulate the expression of genes, 226 genes up- and downregulated by ANAC069 were iden- resulting in decreased ROS scavenging capability and tified. Analysis of the promoters of the genes affected by proline biosynthesis, which contribute to increased sen‑ ANAC069 suggested that ANAC069 regulates the expres- sitivity to salt and osmotic stress. sion of genes mainly through interacting with the DNA Abstract NAM-ATAF1/2 and CUC2 (NAC) proteins sequence C[A/G]CG[T/G] in response to abiotic stresses. are plant-specific transcription factors that play impor - Collectively, our data suggest that ANAC069 could recog- tant roles in abiotic stress responses. In the present study, nize C[A/G]CG[T/G] sequences to regulate the expression we characterized the physiological and
Plant Molecular Biology – Springer Journals
Published: Dec 14, 2016
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