Article
Horticulture
Pornprapa Kongtragoul, Koichiro Ishikawa, Hideo Ishii
Summary: Research has shown the presence of metalaxyl-resistant strains in populations of Phytophthora palmivora in Thailand, posing challenges for disease management.
Article
Agronomy
Md Huzzatul Islam, Sangee Sarkar Shanta, Muhammad Iqbal Hossain, Muhammed Ali Hossain, Md Monower Hossain, Ebna Habib Md Shofiur Rahaman, Abdullah Al Mahmud, Md Abdullah Yousuf Akhond, Louise Sullivan, David E. L. Cooke, Geert J. T. Kessel, Louise R. Cooke, Md Rashidul Islam
Summary: This study investigated the pathogen population of late blight, the major constraint to potato production in Bangladesh. It found significant variations in aggressiveness among isolates collected from different locations, and the dominant lineage in Bangladesh was identified as EU_13_A2, which is also common in India and Pakistan.
Article
Plant Sciences
Yuan-Yuan Zhang, Yu-Hui Hong, Ya-Rong Liu, Jun Cui, Yu-Shi Luan
Summary: miR394 plays a negative role in tomato resistance to late blight, with lncRNA40787 acting as an eTM to regulate LCR. Tthough the expression level of miR394 changes significantly after the infection of various pathogens, our study revealed that overexpression of lncRNA40787 can reduce the expression of miR394 and enhance disease resistance in tomato.
PLANT CELL REPORTS
(2021)
Article
Biochemistry & Molecular Biology
Chenglin Su, Zhengjie Wang, Jun Cui, Zhicheng Wang, Ruiming Wang, Jun Meng, Yushi Luan
Summary: Research suggests that long non-coding RNAs (lncRNAs) are involved in plant defense against pathogens and have the potential to improve plant resistance. In the case of tomato late blight, it has been found that Sl-lncRNA47980 acts as a positive regulator in enhancing tomato resistance to Phytophthora infestans. This study provides a new candidate gene for tomato breeding.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Horticulture
Ruirui Yang, Jie Liu, Zhicheng Wang, Lei Zhao, Tingting Xue, Jun Meng, Yushi Luan
Summary: A study found that SlPep, a plant elicitor peptide derived from SlPROPEP protein, enhances tomato resistance to P. infestans. Overexpression of SlPROPEP increases reactive oxygen species and pathogenesis-related genes, resulting in enhanced resistance, while silencing of SlPROPEP impairs resistance. It was also discovered that SlWRKY6 enhances tomato resistance by upregulating the expression of SlPROPEP. Additionally, application of exogenous SlPep increases jasmonic acid and ethylene contents, promoting tomato resistance to P. infestans.
SCIENTIA HORTICULTURAE
(2023)
Article
Biochemistry & Molecular Biology
Chunxin Liu, Yiyao Zhang, Yinxiao Tan, Tingting Zhao, Xiangyang Xu, Huanhuan Yang, Jingfu Li
Summary: The SlMYBS2 gene is a positive regulator of tomato resistance to P. infestans infection by regulating reactive oxygen species (ROS) levels and pathogenesis-related (PR) gene expression.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Plant Sciences
Houxiao Zhang, Fangfang Li, Zhenzhen Li, Jing Cheng, Xiaokang Chen, Qinhu Wang, Matthieu H. A. J. Joosten, Weixing Shan, Yu Du
Summary: The phosphorylation cascade involving StMKK1 and StMPK7 plays a role in potato resistance to Phytophthora pathogens, potentially through an SA-dependent signaling pathway.
MOLECULAR PLANT PATHOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Yuhui Hong, Yuanyuan Zhang, Jun Cui, Jun Meng, Yinhua Chen, Chengwei Zhang, Jinxiao Yang, Yushi Luan
Summary: In tomato resistance to Phytophthora infestans, the long non-coding RNA Sl-lncRNA39896 acts as an endogenous target mimic for the microRNA Sl-miR166b. Silencing the target genes SlHDZ34/45 reduces pathogen accumulation in infected plants, and enhanced resistance is associated with increased levels of jasmonic acid and ethylene.
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
(2022)
Article
Plant Sciences
Eve Runno-Paurson, Helina Nassar, Terje Tahtjarv, Viacheslav Eremeev, Merili Hansen, Ulo Niinemets
Summary: Long-term site-specific studies have shown significant changes in the phenotypic variability of Phytophthora infestans populations, with fluctuations in mating types and resistance frequencies, as well as a decrease in racial diversity over time. The potato cultivar resistance background has minimal impact on the variability of the pathogen.
Article
Genetics & Heredity
Weiyan Wang, Dong Liu, Xin Zhuo, Yiye Wang, Zhiqiang Song, Fangxin Chen, Yuemin Pan, Zhimou Gao
Summary: Metalaxyl resistance of Phytophthora capsici caused by long-term intense use of the fungicide has become a serious challenge. The study identified a conserved domain RPOLA-N of the RPA190 gene in P. capsici and investigated its role in metalaxyl resistance. Results showed that the expression of RPA190-pc plays a significant role in regulating P. capsici resistance to metalaxyl.
Article
Microbiology
Artemii A. Ivanov, Egor O. Ukladov, Tatiana S. Golubeva
Summary: Phytophthora infestans is a major pathogen in agriculture, with significant impact on Solanaceae species like potatoes and tomatoes. Research shows annual crop losses caused by this pathogen, particularly affecting potatoes. Further studies are needed to delve deeper into this interaction.
Article
Plant Sciences
Zhicheng Wang, Chenglin Su, Wenyun Hu, Qiao Su, Yushi Luan
Summary: This study found that Phytophthora infestans manipulates host plant immune response by secreting three types of effectors, which also regulate host hormone levels and accelerate infection and completion of the pathogen's lifecycle. The findings provide new insights into plant-pathogen interactions and the prevention of hemibiotrophic pathogens.
Article
Plant Sciences
Hana Dufkova, Miroslav Berka, Marie Greplova, Sarlota Shejbalova, Romana Hampejsova, Marketa Luklova, Jaroslava Domkarova, Jan Novak, Viktor Kopacka, Bretislav Brzobohaty, Martin Cerny
Summary: This study analyzed different genotypes of tomatoes by proteome and metabolome analysis, revealing the remodeling of leaf lipid metabolism under resistance against Phytophthora infestans. The analysis identified potential molecular markers and protein markers associated with resistance. These findings provide insights into the molecular mechanisms of resistance and offer novel targets for selective breeding.
Article
Microbiology
Jingyu Zhu, Xue Tang, Yining Sun, Yan Li, Yajie Wang, Yusong Jiang, Huanhuan Shao, Bin Yong, Honghao Li, Xiang Tao
Summary: This study used untargeted metabolomics to investigate the changes in metabolites during the infection process of Phytophthora infestans in potato cultivars. The results showed that metabolic differences mainly emerged after 48 hours postinoculation. Comparisons between the resistant and susceptible cultivars identified metabolites related to resistance, including higher levels of salicylic acid in the resistant cultivar. These metabolites play crucial roles in cell wall thickening and have antibacterial and antifungal activities. This study reveals the metabolomic responses of potatoes to P. infestans and provides insights into the compatible and incompatible interactions between potatoes and P. infestans.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Agronomy
Isaac K. Abuley, James S. Lynott, Jens G. Hansen, David E. L. Cooke, Alison K. Lees
Summary: A study conducted in Danish potato fields found that isolates of P. infestans had developed resistance to mandipropamid, with a dominance of the EU43 genotype. Field experiments confirmed the resistance of EU43 isolates to mandipropamid. This is the first report of mandipropamid resistance in P. infestans.
