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The wheat WRKY transcription factor TaWRKY1-2D confers drought resistance in transgenic Arabidopsis and wheat (Triticum aestivum L.) by Yang Yu; Tianqi Song; Yukun Wang; Mingfei Zhang; Nan Li; Ming Yu; Shuangxing Zhang; Hongwei Zhou; Sihai Guo; Yaning Bu; Tingting Wang; Jishan Xiang; Xiaoke Zhang is a Materials Science article available to read on EtoBox.

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The WRKY transcription factor family has been associated with a variety of plant biological processes, such as biotic and abiotic stress responses. In this study, 13 wheat TaWRKY DEGs in transcriptome data before and after drought stress, namely TaWRKY1 to TaWRKY8, including various copies, were identified and classified as Group I, II, or III. TaWRKY1-2D overexpression enhanced drought tolerance in transgenic Arabidopsis. Moreover, the AtRD29A, AtP5CS1, AtPOD1, AtCAT1, and AtSOD (Cu/Zn) genes, which are related to the stress response and antioxidant system, were significantly upregulated in TaWRKY1-2D transgenic Arabidopsis under drought stress. TaWRKY1-2 silencing in wheat increases the MDA content, reduces the contents of proline and chlorophyll and the activities of antioxidant enzymes, and inhibits the expression levels of antioxidant (TaPOD, TaCAT, and TaSOD (Fe))- and stress-related genes (TaP5CS) under drought stress. Yeast two-hybrid screening revealed TaDHN3 as an interaction partner of TaWRKY1-2D; their interaction was further confirmed using yeast two-hybrid and bimolecular fluorescence complementation. Furthermore, TaWRKY1-2D may play essential roles in wheat drought t

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Author

Yang Yu; Tianqi Song; Yukun Wang; Mingfei Zhang; Nan Li; Ming Yu; Shuangxing Zhang; Hongwei Zhou; Sihai Guo; Yaning Bu; Tingting Wang; Jishan Xiang; Xiaoke Zhang

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Materials Science (Physical Sciences)