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Signal Transduction Pathways in Plants for Resistance against Plant Pathogens 2022

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Plant Sciences".

Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 2461

Special Issue Editor

Special Issue Information

Dear Colleagues,

This Special Issue is the continuation of our previous special issue "Signal Transduction Pathways in Plants for Resistance against Plant Pathogens 2020".

Pathogens could severely limit plant growth and hence pose a severe threat to crop productivity. The co-evolutionary war between plants and their pathogens has led to the development of complex signaling systems in plants, enabling them to sense the presence of both compatible and incompatible pathogens and trigger their defense systems precisely and promptly. This Special Issue explores the signal transduction pathways in plants that led to resistance against pathogens, including, but not limited to, functional analysis of qualitative and quantitation resistance genes, defense mechanisms, plant-pathogen interactions, and signal transduction crosstalk.

Prof. Dr. Hon-Ming Lam
Guest Editor

Manuscript Submission Information

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Keywords

  • plant defense
  • plant immunity
  • plant pathogens
  • plant-microbe interaction
  • plant signal transduction
  • resistance genes
  • avirulence genes
  • signaling crosstalk

Published Papers (1 paper)

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Research

17 pages, 4769 KiB  
Article
Transcriptomic Analysis Revealed Key Defense Genes and Signaling Pathways Mediated by the Arabidopsis thaliana Gene SAD2 in Response to Infection with Pseudomonas syringae pv. Tomato DC3000
by Sha Li, Tiantian Shi, Mingjie Lyu, Rui Wang, Andi Xu, Luoying Chen, Rong Luo, Yinglu Sun, Xiaoying Guo, Jun Liu, Huan Wang and Ying Gao
Int. J. Mol. Sci. 2023, 24(4), 4229; https://doi.org/10.3390/ijms24044229 - 20 Feb 2023
Cited by 2 | Viewed by 1991
Abstract
Nucleocytoplasmic transport receptors play key roles in the nuclear translocation of disease resistance proteins, but the associated mechanisms remain unclear. The Arabidopsis thaliana gene SAD2 encodes an importin β-like protein. A transgenic Arabidopsis line overexpressing SAD2 (OESAD2/Col-0) showed obvious resistance to Pseudomonas syringae [...] Read more.
Nucleocytoplasmic transport receptors play key roles in the nuclear translocation of disease resistance proteins, but the associated mechanisms remain unclear. The Arabidopsis thaliana gene SAD2 encodes an importin β-like protein. A transgenic Arabidopsis line overexpressing SAD2 (OESAD2/Col-0) showed obvious resistance to Pseudomonas syringae pv. tomato DC3000 (Pst DC3000) compared to the wild type (Col-0), but the knockout mutant sad2-5 was susceptible. Transcriptomic analysis was then performed on Col-0, OESAD2/Col-0, and sad2-5 leaves at 0, 1, 2, and 3 days post-inoculation with Pst DC3000. A total of 1825 differentially expressed genes (DEGs) were identified as putative biotic stress defense genes regulated by SAD2, 45 of which overlapped between the SAD2 knockout and overexpression datasets. Gene Ontology (GO) analysis indicated that the DEGs were broadly involved in single-organism cellular metabolic processes and in response to stimulatory stress. Kyoto Encyclopedia of Genes and Genomes (KEGG) biochemical pathway analysis revealed that many of the DEGs were associated with the biosynthesis of flavonoids and other specialized metabolites. Transcription factor analysis showed that a large number of ERF/AP2, MYB, and bHLH transcription factors were involved in SAD2-mediated plant disease resistance. These results provide a basis for future exploration of the molecular mechanisms associated with SAD2-mediated disease resistance and establish a set of key candidate disease resistance genes. Full article
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