Article
Plant Sciences
Parimal Sinha, Xianming Chen
Summary: The study assessed the infection risk of barberry by stripe rust and stem rust pathogens in Asia and Southeastern Europe, with different levels of risk identified in different regions. The findings can guide monitoring and rust management programs in these areas, and the modeling framework used in the study may have broader applications in predicting rust infection risk in other regions.
Article
Plant Sciences
Md. Ashraful Alam, Haoxing Li, Akbar Hossain, Mingju Li
Summary: The research found that the genetic diversity of wheat stripe rust pathogen in most regions of Yunnan Province is high, but the genetic differences between regions are small, indicating frequent migration of the pathogen within the province. Importantly, Dehong, Dali, Lincang, and Baoshan are likely major sources of wheat stripe rust in Yunnan Province.
Article
Biochemistry & Molecular Biology
Qing Bai, Anmin Wan, Meinan Wang, Deven R. See, Xianming Chen
Summary: The study revealed that the stripe rust pathogen is migrating between different countries with a certain level of genetic diversity. Most molecular groups were found to be involved in sexual and/or somatic recombination, indicating genetic mixing among different countries.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Plant Sciences
Junyan Feng, Fangjie Yao, Meinan Wang, Deven R. See, Xianming Chen
Summary: Wheat stripe rust, one of the most serious plant diseases worldwide, can be effectively controlled by breeding resistant cultivars. In this study, researchers successfully mapped the YrTr1 gene, an important resistance gene, to the short arm of chromosome 1B in wheat, and named it Yr85.
Article
Agronomy
Yahui Li, Ruiming Lin, Jinghuang Hu, Xiaohan Shi, Dan Qiu, Peipei Wu, Gebremedhin Habteab Goitom, Siqi Wang, Hongjun Zhang, Li Yang, Hongwei Liu, Qiuhong Wu, Jingzhong Xie, Yang Zhou, Zhiyong Liu, Hongjie Li
Summary: A new stripe rust resistance gene called Yr041133 was identified in winter wheat line 041133, which exhibited resistance to multiple pathotypes of the disease.
Article
Plant Sciences
Yue Li, Rongrong Zhang, Yu Wu, Qin Wu, Qiantao Jiang, Jian Ma, Yazhou Zhang, Pengfei Qi, Guoyue Chen, Yunfeng Jiang, Youliang Zheng, Yuming Wei, Qiang Xu
Summary: This study identified a wheat RNA-binding protein 1 (TaRBP1) that acts as a negative regulator in response to infection by Puccinia striiformis f. sp. tritici (Pst). Knockdown of TaRBP1 resulted in enhanced resistance to Pst, suggesting its role in plant defence. TaRBP1 interacted with TaGLTP and prevented its degradation in plants. The findings reveal a novel susceptible mechanism by which plants fine-tune their defence responses during Pst infection.
MOLECULAR PLANT PATHOLOGY
(2023)
Article
Agronomy
Shuangyuan Guo, Min Li, Huankun Li, Feng Zhang, Qiong Zhang, Xueling Huang, Xing Li, Xiaojie Wang, Zhensheng Kang, Xinmei Zhang
Summary: In this study, a Bln gene (TaBln4) was isolated from wheat infected by Puccinia striiformis. TaBln4 expression was upregulated in response to infection by a virulent race of the pathogen, but not in response to an avirulent race. It was also regulated by hormones and abiotic stresses. Knockdown of TaBln4 inhibited colonization of the virulent race and increased the accumulation of H2O2 and hypersensitive responses. TaBln4 interacted with calmodulin and negatively regulated wheat resistance to the pathogen in a reactive oxygen species and hypersensitive response-dependent manner.
Article
Biochemistry & Molecular Biology
Yanhui Zhang, Xiaofei Liang, Mengxin Zhao, Tuo Qi, Hualong Guo, Jing Zhao, Jie Zhao, Gangming Zhan, Zhensheng Kang, Li Zheng
Summary: We report a novel narnavirus, PsV5, from the devastating wheat stripe rust fungus. The PsV5 genome contains two predicted ORFs, an RdRp and a reverse-frame ORF with unknown function. Overexpression of PsV5 increases susceptibility to Pst in wheat and enhances virulence in Fusarium graminearum. These findings provide insights for sustainable wheat rust disease control and expand our understanding of virosphere diversity.
PLANT COMMUNICATIONS
(2023)
Article
Plant Sciences
Kaveh Ghanbarnia, Ryan Gourlie, Eric Amundsen, Reem Aboukhaddour
Summary: This study investigated the virulence diversity and geographical distribution of the wheat stripe rust pathogen Puccinia striiformis f. sp. tritici population in Canada from 1984 to 2017. The results showed clear changes in pathogen virulence over time, with specific frequencies of virulence on different resistance genes, indicating the potential evolution of virulence/avirulence. Additionally, analysis revealed similarities between Canadian isolates and those from the United States, supporting long-distance migration of the pathogen and different wind trajectories in North America.
Article
Plant Sciences
Cai Sun, Yike Liu, Qiang Li, Baotong Wang, Shuhui Chen, Jianxin Deng, Dongfang Ma, Yuheng Yang
Summary: In this study, a dominant gene YrXk conferring resistance to Puccinia striiformis f. sp. tritici race CYR33 was identified in Chinese wheat cultivar Xike01015. The gene was mapped to a specific region on chromosome BS and three candidate genes were identified. The findings provide useful information for wheat breeding programs aiming to enhance resistance to stripe rust.
Article
Agronomy
Jia Guo, Huan Peng, Tuo Qi, Sanding Xu, Md Ashraful Islam, Brad Day, Qing Ma, Zhensheng Kang, Jun Guo
Summary: Numerous studies have shown that the actin cytoskeleton responds dynamically to pathogen infection. In this study, researchers investigated the role of the actin-related protein TaARPC5 in wheat's resistance against Puccinia striiformis f. sp. tritici (Pst) infection. They found that TaARPC5 plays a key role in regulating the host's actin cytoskeleton and resistance signaling, contributing to enhanced resistance against Pst.
Article
Biochemistry & Molecular Biology
Xiaobo Wei, Xueling Huang, Weiling Yang, Xinran Wang, Tao Guan, Zhensheng Kang, Jie Liu
Summary: This study cloned and identified a wheat G6DPH gene, TaG6PDH2, which is significantly upregulated in wheat leaves infected with Puccinia striiformis f. sp. tritici (Pst) or treated with abiotic stress factors. Functional analysis revealed that TaG6PDH2 encodes a chloroplast-targeting G6PDH protein. Silencing TaG6PDH2 compromised wheat resistance to Pst avirulent pathotype CYR23, and TaG6PDH2 was found to interact with wheat glutaredoxin TaGrxS4.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biochemistry & Molecular Biology
Qing Bai, Meinan Wang, Chongjing Xia, Deven R. See, Xianming Chen
Summary: Stripe rust caused by Puccinia striiformis f. sp. tritici (Pst) is a destructive disease affecting wheat worldwide. This study identified molecular markers for avirulence genes in Pst through association analysis using secreted protein gene-based single nucleotide polymorphism markers. The results provide genomic resources for further research on avirulence gene cloning, host-pathogen interactions, and functional markers development for specific virulence genes and race groups.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Agriculture, Multidisciplinary
Chao Kai-xiang, Wu Cai-juan, Li Juan, Wang Wen-li, Wang Bao-tong, Li Qiang
Summary: The study found that Wudubaijian, a wheat landrace in China, exhibits resistance to stripe rust, and two stable quantitative trait loci (QTLs) were identified through genetic mapping and molecular markers.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2022)
Article
Plant Sciences
Demei Liu, Chan Yuan, Ravi P. P. Singh, Mandeep S. S. Randhawa, Sridhar Bhavani, Uttam Kumar, Julio Huerta-Espino, Evans Lagudah, Caixia Lan
Summary: Developing wheat varieties with durable resistance is a key objective for breeding programs worldwide. This study identified genetic basis and resistance loci for stripe rust (YR) and leaf rust (LR) in wheat, and developed molecular markers for accelerated breeding.
FRONTIERS IN PLANT SCIENCE
(2022)
