Distinct Expression Patterns of WRKY6 and PR1 in Arabidopsis Stress Memory Assays

doi:10.7525/j.issn.1673-5102.2019.05.014

Abstract

Abstract: Plants exposed to bacteria or other microbic pathogens can develop a whole body's defense, also known as systemic acquired resistance(SAR), which can inhibit the growth of pathogens during a secondary infection. Transcription factors WRKY and PATHOGENESIS-RELATED proteins play an important role in plant disease resistance regulation pathway. WRKY6 and PATHOGENESIS RELATED1(PR1) are well-known stress response genes in Arabidopsis thaliana both encoding transcription factors. In this study, we obtained the gene expression data of WRKY6 and PR1 from A.thaliana eFP database, followed by bioinformatics analysis and generated the expression heat map of WRKY6 and PR1 under the abiotic stress and biotic stress. We compared the expression levels of WRKY6 and PR1 after various stress treatments. The results showed that, after Pseudomonas syringae pv.tomato(P_st) DC3000 treatment WRKY6 and PR1 had similar expression patterns, but after the combination of BTH and mechanical stress WRKY6 and PR1 had different expression pattern. Our results indicate that WRKY6 and PR1 react differently after diverse treatments, indicating that both genes act synergistic and independent of each other. It provides a way to further study the mechanism of systemic acquired resistance response in the future.

Key words: Arabidopsis thaliana, WRKY6, PR1, stress response, expression analysis

CLC Number:

S722.3+7

LI Shuang, XIONG Ying, RALF M;ller-Xing, XING Qian. Distinct Expression Patterns of WRKY6 and PR1 in Arabidopsis Stress Memory Assays[J]. Bulletin of Botanical Research, 2019, 39(5): 752-759.

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