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Signal Transduction Mechanism in Plant Disease and Immunity: 2nd Edition

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: 31 March 2025 | Viewed by 2282

Special Issue Editors


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Guest Editor
Department of Bioscience and Biotechnology, Fukui Prefectural University, Eiheiji, Fukui 910-1195, Japan
Interests: plant immunity; phytohormones; pesticides
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Guest Editor
Division of Integrated Omics research, Bioscience Core Facility, Research Center for Experimental Modeling of Human Disease, Kanazawa University, Kanazawa 920-8640, Ishikawa, Japan
Interests: plant immunity; phytohormone; pesticide; resistance gene; receptor
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Plants have various types of relationships with microbes, namely pathogenic, non-pathogenic, and symbiotic, within most parts of the plant body. Among those, protection from pathogen invasion is important to survive, so plants have developed unique self-defense systems which act at the infection site and other parts to defend plants from further pathogen attacks. Those self-defense systems are regulated by signal transduction, mainly initiated by the recognition of pathogenic infection, and operate many types of defense mechanisms against pathogens. These signaling mechanisms comprise various intra- and intercellular events, such as the synthesis and perception of signaling molecules, gene expression, protein modification, protein–protein interaction, synthesis, and the accumulation of bioactive molecules, amongst others. On the other hand, some pathogens successfully infect plants by overcoming or disturbing and hijacking signal transduction in the plant immune system. Understanding these mechanisms of plant disease development and plant self-defense systems against pathogens is very important not only for basic knowledge of plant physiology but also to control diseases in agriculture.

This Special Issue focuses on recent advances in mechanism research on signal transduction in plant disease development and plant defense systems. In addition to basic research at the molecular levels, research for future applied research and technology, including agrochemicals and genetical modifications, will also be considered. 

As the first volume of this Special Issue, titled “Signal Transduction Mechanism in Plant Disease and Immunity”, was successful, we have chosen to reopen this Special Issue in the International Journal of Molecular Sciences (https://www.mdpi.com/journal/ijms, ISSN 1422-0067, IF 5.6, JCR Category Q1). The second volume of this Special Issue, titled “Signal Transduction Mechanism in Plant Disease and Immunity 2nd Edition”, welcomes the submission of original manuscripts and review articles addressing this pressing topic.

Dr. Hideo Nakashita
Dr. Takumi Nishiuchi
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

 

Keywords

  • plant disease resistance
  • biotic stress
  • pathogen
  • plant-microbe interaction
  • priming
  • signal transduction
  • phytohormone
  • proteomics

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Related Special Issue

Published Papers (2 papers)

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Research

24 pages, 9409 KiB  
Article
Metabolic and Antioxidant Responses of Different Control Methods to the Interaction of Sorghum sudangrass hybrids-Colletotrichum boninense
by Jingxuan Xu, Junying Li, Hongji Wang, Xinhao Liu, Zhen Gao, Jie Chen and Yuzhu Han
Int. J. Mol. Sci. 2024, 25(17), 9505; https://doi.org/10.3390/ijms25179505 - 31 Aug 2024
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Abstract
Colletotrichum boninense is the main pathogenic fungus causing leaf spot disease in Sorghum sudangrass hybrids, which seriously impairs its quality and yield. In order to find an efficient and green means of control, this study used the agar disk diffusion method to [...] Read more.
Colletotrichum boninense is the main pathogenic fungus causing leaf spot disease in Sorghum sudangrass hybrids, which seriously impairs its quality and yield. In order to find an efficient and green means of control, this study used the agar disk diffusion method to screen for a fungicide with the strongest inhibitory effect on C. boninense from among several bacteria, fungi, and chemicals. Then, the changes in the plant’s antioxidant system and metabolic levels after treatment were used to compare the three means of control. The lowest inhibitory concentration of Zalfexam was 10 mg/mL, at which point C. boninense did not grow, and the inhibition rates of Bacillus velezensis (X7) and Trichoderma harzianum were 33.87–51.85% and 77.86–80.56%, respectively. Superoxide dismutase (SOD) and chitinase were up-regulated 2.43 and 1.24 folds in the Trichoderma harzianum group (M group) and SOD activity was up-regulated 2.2 folds in the Bacillus velezensis group (X7 group) compared to the control group (CK group). SOD, peroxidase (POD), and chitinase activities were elevated in the Zalfexam group (HX group). The differential metabolites in different treatment groups were mainly enriched in amino acid metabolism and production, flavonoid production, and lipid metabolism pathways. Compared with the diseased plants (ZB group), the M, X7, HX, and CK groups were co-enriched in the tryptophan metabolic pathway and glutamate–arginine metabolic pathway, and only the CK group showed a down-regulation of the metabolites in the two common pathways, while the metabolites of the common pathways were up-regulated in the M, X7, and HX groups. In addition, the salicylic acid–jasmonic acid pathway and ascorbic acid–glutathione, which were unique to the M group, played an important role in helping Sorghum sudangrass hybrids to acquire systemic resistance against stress. This study fills the gap in the control of Colletotrichum boninene, which causes leaf spot disease in Sorghum sudangrass hybrids. This paper represents the first reported case of biological control for leaf spot disease in Sorghum sudangrass hybrids and provides a reference for the control of leaf spot disease in Sorghum sudangrass hybrids as well as other crops infected with Colletotrichum boninense. Full article
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11 pages, 1312 KiB  
Article
Priming of Immune System in Tomato by Treatment with Low Concentration of L-Methionine
by Tomoya Tanaka, Moeka Fujita, Miyuki Kusajima, Futo Narita, Tadao Asami, Akiko Maruyama-Nakashita, Masami Nakajima and Hideo Nakashita
Int. J. Mol. Sci. 2024, 25(12), 6315; https://doi.org/10.3390/ijms25126315 - 7 Jun 2024
Viewed by 1119
Abstract
Various metabolites, including phytohormones, phytoalexins, and amino acids, take part in the plant immune system. Herein, we analyzed the effects of L-methionine (Met), a sulfur-containing amino acid, on the plant immune system in tomato. Treatment with low concentrations of Met enhanced the resistance [...] Read more.
Various metabolites, including phytohormones, phytoalexins, and amino acids, take part in the plant immune system. Herein, we analyzed the effects of L-methionine (Met), a sulfur-containing amino acid, on the plant immune system in tomato. Treatment with low concentrations of Met enhanced the resistance of tomato to a broad range of diseases caused by the hemi-biotrophic bacterial pathogen Pseudomonas syringae pv. tomato (Pst) and the necrotrophic fungal pathogen Botrytis cinerea (Bc), although it did not induce the production of any antimicrobial substances against these pathogens in tomato leaf tissues. Analyses of gene expression and phytohormone accumulation indicated that Met treatment alone did not activate the defense signals mediated by salicylic acid, jasmonic acid, and ethylene. However, the salicylic acid-responsive defense gene and the jasmonic acid-responsive gene were induced more rapidly in Met-treated plants after infection with Pst and Bc, respectively. These findings suggest that low concentrations of Met have a priming effect on the phytohormone-mediated immune system in tomato. Full article
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