Article
Agronomy
T. G. Terefe, B. Visser, Z. A. Pretorius, W. H. P. Boshoff
Summary: Leaf rust, caused by Puccinia triticina, is a common disease on wheat in South Africa. The study revealed the presence of ten new races of Puccinia triticina over the past ten years, indicating the continued variability of the pathogen population in South Africa. Regular surveillance is necessary to monitor the impact of new and more virulent races on wheat cultivars.
EUROPEAN JOURNAL OF PLANT PATHOLOGY
(2023)
Article
Plant Sciences
James A. Kolmer, Matthew N. Rouse
Summary: In this study, a winter wheat line with adult plant resistance to leaf rust was crossed with a susceptible spring wheat to develop recombinant inbred lines. The lines were assessed for leaf rust severity and genotyped for SNP markers to identify QTL associated with resistance. KASP markers were developed for the closely linked SNPs to facilitate marker-based selection of leaf rust resistance in breeding programs.
Article
Plant Sciences
S. C. Bhardwaj, S. Kumar, O. P. Gangwar, P. Prasad, P. L. Kashyap, H. Khan, S. Savadi, G. P. Singh, N. Gupta, R. Thakur
Summary: Wheat leaf rust caused by Puccinia triticina was the most prevalent among the three rusts in wheat-growing areas of India, Bhutan, and Nepal. A total of 33 pathotypes were identified, with two pathotypes accounting for 79.46% of the population. Most Indian wheat germplasm varieties possessed a high degree of resistance to leaf rust caused by the majority of identified pathotypes.
Review
Agronomy
Elena Gultyaeva, Ekaterina Shaydayuk, Philipp Gannibal
Summary: Winter wheat is mainly grown in the North Caucasian, Central Black Earth, and Central agroecological regions in Russia, while spring wheat dominates in the Urals, Volga region, and Western Siberia. Wheat leaf rust, caused by Puccinia triticina, is an important disease affecting wheat production. Research shows that the evolution of the wheat leaf rust pathogen occurs more frequently in regions where pathotype-specific resistance cultivars are commonly grown.
Review
Plant Sciences
Johannes Mapuranga, Jiaying Chang, Jiaojie Zhao, Maili Liang, Ruolin Li, Yanhui Wu, Na Zhang, Lirong Zhang, Wenxiang Yang
Summary: Wheat leaf rust is a common disease that threatens global wheat production, and current mitigation approaches include the use of fungicides and resistance genes. However, the continuous use of resistant varieties leads to the evolution of the pathogen and emergence of new virulent races, causing the demise of resistant cultivars. Diploid wheat accessions have been found to confer resistance through haustorium formation, which is not affected by specific pathogen races. Systemic acquired resistance also provides durable resistance against various pathogens.
Article
Plant Sciences
Yanjun Zhang, Huaimin Geng, Zhongchi Cui, Haiyan Wang, Daqun Liu
Summary: NAC transcription factor TaNAC069 was cloned from wheat using RNA-seq data and its positive regulatory role in wheat resistance to Pt was confirmed. Silencing TaNAC069 gene using VIGS significantly reduced plant resistance to Pt, indicating its important functional role. Potential interaction targets of TaNAC069 from wheat and Pt were identified, providing a foundation for further analysis of its molecular mechanisms in wheat resistance to Pt.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Agronomy
Subodh Kumar, Subhash C. Bhardwaj, Om P. Gangwar, Akanksha Sharma, Naeela Qureshi, Vikas V. Kumaran, Hanif Khan, Pramod Prasad, Hanif Miah, Gyanendra P. Singh, Kiran Sharma, Hemlata Verma, Kerrie L. Forrest, Richard M. Trethowan, Harbans S. Bariana, Urmil K. Bansal
Summary: Through genetic analysis and molecular marker mapping, a wheat landrace Hango-2 was found to have monogenic control of leaf rust resistance at locus LrH2, which was formally named Lr80. The markers linked with Lr80 showed different alleles/products in 82 Australian wheat cultivars, demonstrating their robustness for marker-assisted selection.
THEORETICAL AND APPLIED GENETICS
(2021)
Article
Agronomy
Fei Wang, Songsong Shen, Zhongchi Cui, Shitao Yuan, Ping Qu, Hui Jia, Linshuo Meng, Xiaoyu Hao, Daqun Liu, Lisong Ma, Haiyan Wang
Summary: In this study, the effector Pt_21 was found to suppress host defense response by interacting with wheat TaTLP1 and inhibiting its antifungal activity, which provides new insights into the molecular mechanisms underlying Pt effector-mediated susceptibility in wheat.
Article
Plant Sciences
Firdissa E. Bokore, Richard D. Cuthbert, Ron E. Knox, Colin W. Hiebert, Curtis J. Pozniak, Samia Berraies, Yuefeng Ruan, Brad Meyer, Pierre Hucl, Brent D. McCallum
Summary: This study aimed to identify and map the leaf rust resistance of six Canadian Western Red Spring wheat cultivars. Three doubled haploid populations were evaluated for seedling resistance and adult plant disease response and genotyped with a SNP array. Multiple QTL for leaf rust resistance were found in each population, with contributions from different cultivars. The results provide valuable information for resistance breeding and expanding our knowledge of leaf rust resistance genes in Canadian wheat.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agronomy
Elena Gultyaeva, Philipp Gannibal, Ekaterina Shaydayuk
Summary: This study investigated leaf rust of wheat in the North-Western Region of Russia and found temporal variation in the virulence of the Puccinia triticina pathogen. Virulence to certain genes decreased over time, while virulence to Lr1 increased. Variability in virulence was observed for other genes as well. The overall trend in recent years has been a reduction in the virulence of the Pt pathogen.
Article
Agronomy
Fernando Martinez-Moreno, Patricia Giraldo, Maria del Mar Catedra, Magdalena Ruiz
Summary: Study in Spain identified resistant landraces of tetraploid wheats, particularly domesticated emmer wheat landraces, which showed resistance to leaf rust. Factors such as late heading and red coat seeds were associated with resistant accessions. Resistant landraces were found to originate from areas with higher rainfall and more uniform temperature patterns.
Article
Agronomy
Zhongchi Cui, Fang Liang, Jiarui Zhang, Fei Wang, Daqun Liu, Haiyan Wang
Summary: The stable expression of TaTLP1 enhances resistance of wheat against leaf rust and common root rot by activating peroxidase, beta-1,3-glucanase, and reactive oxygen species-related genes.
Article
Plant Sciences
Yue Qi, Jianyuan Li, Johannes Mapuranga, Na Zhang, Jiaying Chang, Qianhua Shen, Yue Zhang, Jie Wei, Liping Cui, Daqun Liu, Wenxiang Yang
Summary: The study identifies Pt13024 as an effector protein that inhibits programmed cell death in wheat and is avirulent to TcLr30. This research provides important insights into the pathogenicity mechanisms of Pt effector proteins and their regulatory mechanisms.
FRONTIERS IN PLANT SCIENCE
(2023)
Review
Agronomy
Igor Kushnirenko, Ekaterina Shreyder, Nadezhda Bondarenko, Ekaterina Shaydayuk, Nadezhda Kovalenko, Julia Titova, Elena Gultyaeva
Summary: The southern Ural region in Russia consistently produces high-quality wheat, with breeding efforts focusing on developing wheat cultivars genetically protected from major diseases. In recent years, new wheat cultivars with high resistance to diseases have been recommended for commercial production, exhibiting strong resistance and effective genes to prevent disease outbreaks.
Article
Microbiology
Mohsen Mohamed Elsharkawy, Reda Ibrahim Omara, Yasser Sabry Mostafa, Saad Abdulrahman Alamri, Mohamed Hashem, Sulaiman A. Alrumman, Abdelmonim Ali Ahmad
Summary: The use of chitosan nanoparticles and salicylic acid treatment can significantly reduce the occurrence of wheat leaf rust and improve plant growth. Chitosan nanoparticles treatment leads to abnormalities in Puccinia triticina urediniospores and increased enzyme activities.