Ethylene and Plant Immunity

Anver, Shajahan; Tsuda, Kazuhiko

doi:10.1007/978-94-017-9484-8_11

Cited by 9 publications

(6 citation statements)

References 110 publications

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“…To test whether AtLORE overexpression renders tomato sensitive to 3-OH-C10:0, we assessed the production of the phytohormone ethylene as a typical PTI output (Anver & Tsuda, 2015) (Kutschera et al, 2019). This confirms that 3-OH-C10:0 sensing specificity by AtLORE is transferable from A. thaliana to S. lycopersicum.…”

Section: Overexpression Of Atlore In S Lycopersicum Confers 3-oh-c10:...mentioning

confidence: 69%

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Cross-family transfer of the Arabidopsis cell-surface immune receptor LORE to tomato confers sensing of 3-hydroxylated fatty acids and enhanced disease resistance

Eschrig,

Kahlon,

Agius

et al. 2024

Preprint

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Plant pathogens pose a high risk of yield losses and threaten food security. Technological and scientific advances have improved our understanding of the molecular processes underlying host-pathogen interactions, which paves the way for new strategies in crop disease management beyond the limits of conventional breeding. Cross-family transfer of immune receptor genes is one such strategy that takes advantage of common plant immune signaling pathways to improve disease resistance in crops. Sensing of microbe- or host damage-associated molecular patterns (MAMPs/DAMPs) by plasma membrane-resident pattern recognition receptors (PRR) activates pattern-triggered immunity (PTI) and restricts the spread of a broad spectrum of pathogens in the host plant. In the model plant Arabidopsis thaliana, the S-domain receptor-like kinase LIPOOLIGOSACCHARIDE-SPECIFIC REDUCED ELICITATION (AtLORE, SD1-29) functions as PRR, which senses medium chain-length 3-hydroxylated fatty acids (mc-3-OH-FAs), such as 3-OH-C10:0, and 3-hydroxyalkanoates (HAAs) of microbial origin to activate PTI. In this study, we show that ectopic expression of the Brassicaceae-specific PRR AtLORE in the solanaceous crop species Solanum lycopersicum cv. M82 leads to the gain of 3-OH-C10:0 immune sensing without altering plant development. AtLORE-transgenic tomato shows enhanced resistance against Pseudomonas syringae pv. tomato DC3000 and Alternaria solani NL03003. Applying 3-OH-C10:0 to the soil before infection induces resistance against the oomycete pathogen Phytophthora infestans Pi100 and further enhances resistance to A. solani NL03003. Our study proposes a potential application of AtLORE-transgenic crop plants and mc-3-OH-FAs as resistance-inducing bio-stimulants in disease management.

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Section: Overexpression Of Atlore In S Lycopersicum Confers 3-oh-c10:...mentioning

confidence: 69%

“…To test whether AtLORE overexpression renders tomato sensitive to 3-OH-C10:0, we assessed the production of the phytohormone ethylene as a typical PTI output (Anver & Tsuda, 2015) upon elicitation with 3-OH-C10:0. We analyzed three genotyping positive plants of different At LORE-OE lines, EV control or M82 wild type (Fig 3).…”

Section: Resultsmentioning

confidence: 99%

Cross-family transfer of the Arabidopsis cell-surface immune receptor LORE to tomato confers sensing of 3-hydroxylated fatty acids and enhanced disease resistance

Eschrig,

Kahlon,

Agius

et al. 2024

Preprint

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“…In addition, other GO terms were related to infection processes, such as those associated with “response to salicylic acid” only in Cluster 8 (Supplementary Figure 2) and “response to jasmonic acid” in both Cluster 8 and 9 (Supplementary Figure 3) and the misregulated genes associated with these PHs appear in Supplementary Figure 4. SA and JA, together with ethylene and abscisic acid (ABA), are the major signaling regulators in plant defense (Anver and Tsuda, 2015; Gupta et al, 2017). For this reason, the concentration of these PHs was also measured.…”

Section: Resultsmentioning

confidence: 99%

Transcriptomic reprogramming in a susceptiblePhaseolus vulgarisL. variety duringPseudomonas syringaeattack: The key role of homogalacturonan methylation

Rubia

Largo-Gosens

Yusta

et al. 2022

Preprint

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The molecular mechanism that drives the resistance/susceptibility of common bean to Pseudomonas syringae pv. phaseolicola (Pph) has not been clarified yet. For this purpose, 15-day-old common bean plants, variety riñón, were infected with Pph to analyze the transcriptomic changes at 2 and 9 h. RNA-seq analysis showed an upregulation of defense-related genes at 2h, most of them being downregulated at 9h, suggesting that Pph would inhibit the transcriptomic reprogramming of the plant. This trend was also observed in the modulation of 101 cell wall (CW) related genes. However, the changes in CW composition at early stages of Pph infection were related to homogalacturonan (HG) methylation and the formation of HG egg boxes. A common bean pectin methylesterase inhibitor 3 (PvPMEI3) gene - closely related to AtPMEI3 - was detected. In addition, PMEI3 protein was located in the apoplast and had inhibitory activity. Therefore, PvPMEI3 seems to be a good candidate to play a key role in infection, because Arabidopsis pmei3 mutant showed susceptibility to Pph. All these changes could be an attempt to reinforce the CW structure and thus, hinder the attack of the bacterium. However, these transcriptional and CW-remodeling processes are not deep enough to block the action of the pathogen.

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“…Ethylene is an important regulator of PTI against pathogens and plant immune signaling network . Infection of O. cumana significantly inhibited 1‐aminocyclopropapne‐1‐carboxylic acid (ACC) oxidase, which is a key enzyme for synthesis of ethylene, in the roots of susceptible cv.…”

Section: Discussionmentioning

confidence: 99%

iTRAQ‐based proteomics of sunflower cultivars differing in resistance to parasitic weed Orobanche cumana

Yang

Zhang

et al. 2017

Proteomics

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Orobanche cumana is an obligate root parasite causing severe damage to many economically important crops, including sunflowers worldwide. For efficient control measures, it is necessary to understand the resistant mechanism during interaction at molecular level. The present study emphasizes on comparative proteomics to investigate the mechanistic basis of compatible and incompatible interaction of O. cumana with resistant (JY207) and susceptible (TK0409) sunflowers. More than 3500 proteins were identified from two cultivars by iTRAQ analysis. Identified proteins associated with general functions, posttranslational modification, energy production and conversion, carbohydrate transport and metabolism, and signal transduction mechanisms were the most represented category of induced proteins in both cultivars. The resistant interaction was characterized by alteration of defense-related proteins involved in recognition of parasites, accumulation of pathogenesis-related proteins, biosynthesis of lignin, and detoxification of toxic metabolites in JY207 after inoculation. The susceptible interaction was characterized by decreased abundance of proteins involved in biosynthesis and signaling of plant growth regulators including auxin, gibberellin, brassinosteroid, and ethylene in TK0409 after inoculation. The present study provides comprehensive details of proteins and differential modulation of pathways regulated under compatible and incompatible interaction, allowing the identification of important molecular components for development of sustainable resistance against this parasite.

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Ethylene and Plant Immunity

Cited by 9 publications

References 110 publications

Cross-family transfer of the Arabidopsis cell-surface immune receptor LORE to tomato confers sensing of 3-hydroxylated fatty acids and enhanced disease resistance

Cross-family transfer of the Arabidopsis cell-surface immune receptor LORE to tomato confers sensing of 3-hydroxylated fatty acids and enhanced disease resistance

Transcriptomic reprogramming in a susceptiblePhaseolus vulgarisL. variety duringPseudomonas syringaeattack: The key role of homogalacturonan methylation

iTRAQ‐based proteomics of sunflower cultivars differing in resistance to parasitic weed Orobanche cumana

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