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Ali MA, Azeem F, Nawaz MA, Acet T, Abbas A, Imran QM, Shah KH, Rehman HM, Chung G, Yang SH, Bohlmann H. Transcription factors WRKY11 and WRKY17 are involved in abiotic stress responses in Arabidopsis. J Plant Physiol 2018; 226:12-21. [PMID: 29689430 DOI: 10.1016/j.jplph.2018.04.007] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 03/14/2018] [Accepted: 04/14/2018] [Indexed: 05/28/2023]
Abstract
Plant WRKY transcription factors play a vital role in abiotic stress tolerance and regulation of plant defense responses. This study examined AtWRKY11 and AtWRKY17 expression under ABA, salt, and osmotic stress at different developmental stages in Arabidopsis. We used reverse transcriptase PCR, quantitative real-time PCR, and promoter:GUS lines to analyze expression. Both genes were upregulated in response to abiotic stress. Next, we applied the same stressors to seedlings of T-DNA insertion wrky11 and 17 knock-out mutants (single and double). Under stress, the mutants exhibited slower germination and compromised root growth compared with the wild type. In most cases, double-mutant seedlings were more affected than single mutants. These results suggest that wrky11 and wrky17 are not strictly limited to plant defense responses but are also involved in conferring stress tolerance.
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Affiliation(s)
- Muhammad Amjad Ali
- Department of Plant Pathology, University of Agriculture, 38040 Faisalabad, Pakistan; Centre of Agricultural Biochemistry and Biotechnology, University of Agriculture, 38040 Faisalabad, Pakistan.
| | - Farrukh Azeem
- Department of Bioinformatics and Biotechnology, Govt. College University, Faisalabad, Pakistan
| | - Muhammad Amjad Nawaz
- Department of Biotechnology, Chonnam National University, Yeosu, Chonnam, 59626, South Korea
| | - Tuba Acet
- Department of Genetic and Bioengineering, Faculty of Engineering and Natural Sciences, Gumusahne University, 29100, Gumushane, Turkey
| | - Amjad Abbas
- Department of Plant Pathology, University of Agriculture, 38040 Faisalabad, Pakistan
| | - Qari Muhammad Imran
- Laboratory of Plant Functional Genomics, College of Agriculture & Life Sciences, Kyngpook National University, Buk-gu Daegu, 702-701, South Korea
| | - Kausar Hussain Shah
- Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, Pakistan
| | - Hafiz Mamoon Rehman
- Department of Biotechnology, Chonnam National University, Yeosu, Chonnam, 59626, South Korea
| | - Gyuhwa Chung
- Department of Biotechnology, Chonnam National University, Yeosu, Chonnam, 59626, South Korea
| | - Seung Hwan Yang
- Department of Biotechnology, Chonnam National University, Yeosu, Chonnam, 59626, South Korea.
| | - Holger Bohlmann
- Division of Plant Protection, Department of Crop Sciences, University of Natural Resources and Life Sciences, Vienna, Austria
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