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Journal of Integrative Agriculture 2018年第11期17卷 2478-2491页

作者： Sumaira Farrakh Meinan Wang Xianming Chen Department of Plant Pathology Washington State University Department of Biosciences COMSATS Institute of Information Technology USDA-ARS Wheat Health Genetics and Quality Research Unit

Interactions of the stripe rust pathogen （Puccinia striiformis f. sp responses. Among various genes involved in the plant-pathogen related （PR） protein genes determine different defense responses tritici） with wheat plants activate a w^ae range OT nost nteractions, the expressions of particular pathogenesis-Different types of resistance have been recognized and utilized for developing wheat cultivars for resistance to stripe rust. All-stage resistance can be detected in seedling stage and remains at high levels throughout the plant growth stages. This type of resistance is race-specific and not durable. In contrast, plants with only high-temperature adult-plant （HTAP） resistance are susceptible in seedling stage, but become resistant when plants grow older and the weather becomes warmer. HTAP resistance controlled by a single gene is partial, but usually non-race specific and durable. The objective of this study was to analyze the expression of PR protein genes involved in different types of wheat resistance to stripe rust. The expression levels of 8 PR protein genes （PR1, PRI.2, PR2, PR3, PR4, PR5, PR9 and PRIO） were quantitatively evaluated at 0, 1, 2, 7 and 14 days after inoculation in single resistance gene lines of wheat with all-stage resistance genes YrTrl, Yr76, YrSP and YrExp2 and lines carrying HTAP resistance genes Yr52, Yr59, Yr62 and Yr7B. Races PSTv-4 and PSTv-37 for compatible and incompatible interactions were used in evaluation of PR protein gene expression in wheat lines carrying all-stage resistance genes in the seedling- stage experiment while PSTv-37 was used in the HTAP experiment. Analysis of quantitative real-time polymerase chain reaction （qRT-PCR） revealed that all of the PR protein genes were involved in the different types of resistance controlled by different Yr genes. However, these genes were upregulated at different time points and at different levels during the infection process among the wheat lines with different Yr genes for eith

关键词： wheat stripe rust plant resistance pathogen-related protein qRT-PCR

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LncRNA26000-StPR1b Module Associated with StMYB4 Confers Resistance to Phytophthora infestans in Potato

LncRNA26000-StPR1b Module Associated with StMYB4 Confers Res...

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中国植物病理学会2024年学术年会

作者： ZHAO Xuechen WANG Chenchen DONG Daofeng XU Na Liu Hongmei ZHOU Shumei ZHU Changxiang National Key Laboratory of Wheat Breeding and College of Life Science Shandong Agricultural University Institute of Vegetables Shandong Academy of Agricultural Sciences

The potato late blight caused by Phytophthora infestans is the most harmful disease to potato *** non-coding RNAs(LncRNAs) have been found to play a key role in plant disease ***,the function of lncRNAs in *** interaction has not been *** this study,the transcriptome sequencing was performed to identify lncRNAs associated with the *** *** significantly up-regulated StlncRNA26000 were selected for further *** to the biological characterization,StlncRNA26000 is the NAT-lncRNA of StPR1 b without protein coding ***26000 has a positive regulatory effect on StPR1 b *** on the transient overexpression and VIGS-mediated silencing expression analysis,both StlncRNA26000 and StPR1 b exhibited positive regulatory effects on *** resistance and the expression levels of resistance-related *** of StlncRNA26000 and StPR1 b in tobacco leaves directly induced ROS ***,*** infection led to the up-regulation of MeJA pathway related *** treatment enhanced the expression levels of StlncRNA26000 and StPR1 *** silencing StlncRNA26000,the promoting effect of MeJA on StPR1 b was significantly ***,the transcription factor StMYB4 regulated by MeJA was also screened from our transcriptome *** dual luciferase and yeast one-hybrid assays proved that StMYB4 could interact with the StlncNA26000 promoter and activate its *** results present a novel *** resistance pathway mediated by StMYB4-lncRNA26000-StPR1 b module,and provide groundwork for further exploring the potato IncRNAs in response to *** infection and theoretical basis for potato breeding.

关键词： potato Phytophthora infestans long non-coding RNA pathogen-related protein MeJA

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