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Polyethyleneimine-coated MXene quantum dots improve cotton tolerance to Verticillium dahliae by maintaining ROS homeostasis

Qiu, Ping; Li, Jiayue; Zhang, Lin; Chen, Kun; Shao, Jianmin; Zheng, Baoxin; Yuan, Hang; Qi, Jie; Yue, Lin; Hu, Qin; Ming, Yuqing; Liu, Shiming; Long, Lu; Gu, Jiangjiang; Zhang, Xianlong; Lindsey, Keith; Gao, Wei; Wu, Honghong; Zhu, Longfu

Polyethyleneimine-coated MXene quantum dots improve cotton tolerance to Verticillium dahliae by maintaining ROS homeostasis Thumbnail


Authors

Ping Qiu

Jiayue Li

Kun Chen

Jianmin Shao

Baoxin Zheng

Hang Yuan

Jie Qi

Lin Yue

Qin Hu

Yuqing Ming

Shiming Liu

Lu Long

Jiangjiang Gu

Xianlong Zhang

Wei Gao

Honghong Wu

Longfu Zhu



Abstract

Verticillium dahliae is a soil-borne hemibiotrophic fungal pathogen that threatens cotton production worldwide. In this study, we assemble the genomes of two V. dahliae isolates: the more virulence and defoliating isolate V991 and nondefoliating isolate 1cd3-2. Transcriptome and comparative genomics analyses show that genes associated with pathogen virulence are mostly induced at the late stage of infection (Stage II), accompanied by a burst of reactive oxygen species (ROS), with upregulation of more genes involved in defense response in cotton. We identify the V991-specific virulence gene SP3 that is highly expressed during the infection Stage II. V. dahliae SP3 knock-out strain shows attenuated virulence and triggers less ROS production in cotton plants. To control the disease, we employ polyethyleneimine-coated MXene quantum dots (PEI-MQDs) that possess the ability to remove ROS. Cotton seedlings treated with PEI-MQDs are capable of maintaining ROS homeostasis with enhanced peroxidase, catalase, and glutathione peroxidase activities and exhibit improved tolerance to V. dahliae. These results suggest that V. dahliae trigger ROS production to promote infection and scavenging ROS is an effective way to manage this disease. This study reveals a virulence mechanism of V. dahliae and provides a means for V. dahliae resistance that benefits cotton production.

Citation

Qiu, P., Li, J., Zhang, L., Chen, K., Shao, J., Zheng, B., …Zhu, L. (2023). Polyethyleneimine-coated MXene quantum dots improve cotton tolerance to Verticillium dahliae by maintaining ROS homeostasis. Nature Communications, 14(1), Article 7392. https://doi.org/10.1038/s41467-023-43192-4

Journal Article Type Article
Acceptance Date Nov 2, 2023
Online Publication Date Nov 15, 2023
Publication Date 2023
Deposit Date Jan 9, 2024
Publicly Available Date Jan 9, 2024
Journal Nature Communications
Publisher Nature Research
Peer Reviewed Peer Reviewed
Volume 14
Issue 1
Article Number 7392
DOI https://doi.org/10.1038/s41467-023-43192-4
Public URL https://durham-repository.worktribe.com/output/1932516

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