Wheat Susceptibility Genes TaCAMTA2 and TaCAMTA3 Negatively Regulate Post-Penetration Resistance against Blumeria graminis forma specialis tritici

Li, Mengmeng; Yang, Zige; Liu, Jiao; Chang, Cheng

doi:10.3390/ijms241210224

Cited by 5 publications

(1 citation statement)

References 73 publications

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“…For instance, the S factors TaMLO, TaEDR1, TaPOD70, TaHDA6, TaHOS15, TaHDT701, and TaCAMTA2/3 negatively regulate wheat defenserelated gene expression and suppress the wheat post-penetration resistance to B.g. tritici [34][35][36][37][38][39][40][41][42][43]. In Arabidopsis, mutations that attenuated SA biosynthesis or signaling (sid2, npr1, and ndr1) abolished the enhanced resistance of dnd mutants against the bacterial pathogen P. syringae and the oomycete pathogen H. parasitica, but not the fungal pathogen B. cinerea [44].…”

Section: Tadnd1 and Tadnd2 Contribute To Wheat Powdery Mildew Suscept...mentioning

confidence: 99%

Wheat Transcriptional Corepressor TaTPR1 Suppresses Susceptibility Genes TaDND1/2 and Potentiates Post-Penetration Resistance against Blumeria graminis forma specialis tritici

Zhi,

Gao,

Chen

et al. 2024

IJMS

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The obligate biotrophic fungal pathogen Blumeria graminis forma specialis tritici (B.g. tritici) is the causal agent of wheat powdery mildew disease. The TOPLESS-related 1 (TPR1) corepressor regulates plant immunity, but its role in regulating wheat resistance against powdery mildew remains to be disclosed. Herein, TaTPR1 was identified as a positive regulator of wheat post-penetration resistance against powdery mildew disease. The transient overexpression of TaTPR1.1 or TaTPR1.2 confers wheat post-penetration resistance powdery mildew, while the silencing of TaTPR1.1 and TaTPR1.2 results in an enhanced wheat susceptibility to B.g. tritici. Furthermore, Defense no Death 1 (TaDND1) and Defense no Death 2 (TaDND2) were identified as wheat susceptibility (S) genes facilitating a B.g. tritici infection. The overexpression of TaDND1 and TaDND2 leads to an enhanced wheat susceptibility to B.g. tritici, while the silencing of wheat TaDND1 and TaDND2 leads to a compromised susceptibility to powdery mildew. In addition, we demonstrated that the expression of TaDND1 and TaDND2 is negatively regulated by the wheat transcriptional corepressor TaTPR1. Collectively, these results implicate that TaTPR1 positively regulates wheat post-penetration resistance against powdery mildew probably via suppressing the S genes TaDND1 and TaDND2.

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Section: Tadnd1 and Tadnd2 Contribute To Wheat Powdery Mildew Suscept...mentioning

confidence: 99%

Wheat Transcriptional Corepressor TaTPR1 Suppresses Susceptibility Genes TaDND1/2 and Potentiates Post-Penetration Resistance against Blumeria graminis forma specialis tritici

Zhi,

Gao,

Chen

et al. 2024

IJMS

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Systematic identification and expression profiling of calmodulin-binding transcription activator genes reveal insights into their functional diversity against pathogens in sugarcane

Javed,

Wang,

et al. 2024

Plant Stress

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Effects of sweet pepper straw biochar on soil microbial communities and growth of continuously cropped cucumber

Li,

Lou,

Chen

et al. 2024

Ann Microbiol

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Purpose This study evaluates biochar from crop residues as a solution to soil degradation in continuous monoculture within greenhouse agriculture, focusing on its impact on soil microbial communities and cucumber plant growth. Methods We analyzed biochar derived from tomato straw (TSB), sweet pepper straw (SPSB), and eggplant straw (ESB), assessing their nutrient content, cation exchange capacity, and adsorption rates. This study examined the effects of three concentrations (2.5%, 5%, and 7.5% w/w) of the more promising SPSB on soil properties and cucumber growth. Results SPSB showed significantly higher levels of nitrogen, phosphorus, and potassium, along with superior adsorption capacity compared to TSB and ESB. The 5% w/w SPSB concentration notably improved cucumber growth, increasing plant height by 13.01%, stem thickness by 20.79%, leaf area by 50.26%, and dry weight by 58.56% relative to the control. High-throughput sequencing revealed this concentration significantly altered soil microbial community structure, enhancing bacterial and fungal diversity. It increased beneficial bacterial groups (Firmicutes, Actinobacteria, Bacillus) and modified fungal communities, with a decrease in Ascomycota and Aspergillus and shifts in Penicillium abundance. Functional genomic analysis indicated enrichment in bacterial metabolic pathways and fungal replication and expression genes. Conclusion SPSB, especially at a 5% w/w concentration, emerges as an effective soil amendment in greenhouses affected by continuous monoculture. This approach represents a sustainable method to enhance soil health and crop productivity.

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Wheat Susceptibility Genes TaCAMTA2 and TaCAMTA3 Negatively Regulate Post-Penetration Resistance against Blumeria graminis forma specialis tritici

Cited by 5 publications

References 73 publications

Wheat Transcriptional Corepressor TaTPR1 Suppresses Susceptibility Genes TaDND1/2 and Potentiates Post-Penetration Resistance against Blumeria graminis forma specialis tritici

Wheat Transcriptional Corepressor TaTPR1 Suppresses Susceptibility Genes TaDND1/2 and Potentiates Post-Penetration Resistance against Blumeria graminis forma specialis tritici

Systematic identification and expression profiling of calmodulin-binding transcription activator genes reveal insights into their functional diversity against pathogens in sugarcane

Effects of sweet pepper straw biochar on soil microbial communities and growth of continuously cropped cucumber

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