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Article

A NAC Transcription Factor TuNAC69 Contributes to ANK-NLR-WRKY NLR-Mediated Stripe Rust Resistance in the Diploid Wheat Triticum urartu

by
Yang Xu
1,
Shenghao Zou
1,
Hao Zeng
1,
Wei Wang
1,
Bin Wang
2,
Huan Wang
3,* and
Dingzhong Tang
1,*
1
State Key Laboratory of Ecological Control of Fujian-Taiwan Crop Pests, Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, Plant Immunity Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
2
College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
3
College of Agronomy, State Key Laboratory of Wheat and Maize Crop Science, and Center for Crop Genome Engineering, Longzi Lake Campus, Henan Agricultural University, Zhengzhou 450046, China
*
Authors to whom correspondence should be addressed.
Int. J. Mol. Sci. 2022, 23(1), 564; https://doi.org/10.3390/ijms23010564
Submission received: 9 December 2021 / Revised: 30 December 2021 / Accepted: 1 January 2022 / Published: 5 January 2022
(This article belongs to the Special Issue Plant-Microbe Interactions)
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Abstract

Stripe rust is one of the most devastating diseases in wheat. Nucleotide-binding site (NBS) and leucine-rich repeat (LRR) domain receptors (NLRs) recognize pathogenic effectors and trigger plant immunity. We previously identified a unique NLR protein YrU1 in the diploid wheat Triticum urartu, which contains an N-terminal ANK domain and a C-terminal WRKY domain and confers disease resistance to stripe rust fungus Puccinia striiformis f. sp. Tritici (Pst). However, how YrU1 functions in disease resistance is not clear. In this study, through the RNA-seq analysis, we found that the expression of a NAC member TuNAC69 was significantly up-regulated after inoculation with Pst in the presence of YrU1. TuNAC69 was mainly localized in the nucleus and showed transcriptional activation in yeast. Knockdown TuNAC69 in diploid wheat Triticum urartu PI428309 that contains YrU1 by virus-induced gene silencing reduced the resistance to stripe rust. In addition, overexpression of TuNAC69 in Arabidopsis enhanced the resistance to powdery mildew Golovinomyces cichoracearum. In summary, our study indicates that TuNAC69 participates in the immune response mediated by NLR protein YrU1, and likely plays an important role in disease resistance to other pathogens.
Keywords: NLR; YrU1; TuNAC69; stripe rust; plant immunity NLR; YrU1; TuNAC69; stripe rust; plant immunity

Share and Cite

MDPI and ACS Style

Xu, Y.; Zou, S.; Zeng, H.; Wang, W.; Wang, B.; Wang, H.; Tang, D. A NAC Transcription Factor TuNAC69 Contributes to ANK-NLR-WRKY NLR-Mediated Stripe Rust Resistance in the Diploid Wheat Triticum urartu. Int. J. Mol. Sci. 2022, 23, 564. https://doi.org/10.3390/ijms23010564

AMA Style

Xu Y, Zou S, Zeng H, Wang W, Wang B, Wang H, Tang D. A NAC Transcription Factor TuNAC69 Contributes to ANK-NLR-WRKY NLR-Mediated Stripe Rust Resistance in the Diploid Wheat Triticum urartu. International Journal of Molecular Sciences. 2022; 23(1):564. https://doi.org/10.3390/ijms23010564

Chicago/Turabian Style

Xu, Yang, Shenghao Zou, Hao Zeng, Wei Wang, Bin Wang, Huan Wang, and Dingzhong Tang. 2022. "A NAC Transcription Factor TuNAC69 Contributes to ANK-NLR-WRKY NLR-Mediated Stripe Rust Resistance in the Diploid Wheat Triticum urartu" International Journal of Molecular Sciences 23, no. 1: 564. https://doi.org/10.3390/ijms23010564

APA Style

Xu, Y., Zou, S., Zeng, H., Wang, W., Wang, B., Wang, H., & Tang, D. (2022). A NAC Transcription Factor TuNAC69 Contributes to ANK-NLR-WRKY NLR-Mediated Stripe Rust Resistance in the Diploid Wheat Triticum urartu. International Journal of Molecular Sciences, 23(1), 564. https://doi.org/10.3390/ijms23010564

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