Editorial: Induced resistance and priming against pests and pathogens

Perazzolli, Michele; Ton, Jurriaan; Luna, Estrella; Mauch‐Mani, Brigitte; Pappas, Maria L.; Roberts, Michael R.; Vlot, A. Corina; Flors, Víctor

doi:10.3389/fpls.2022.1075783

Cited by 6 publications

(4 citation statements)

References 8 publications

(9 reference statements)

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“…The induced resistance by early environmental stress (e.g. chemical agents [ 85 ], physical wounding [ 86 ]) is widely applied in plant hosts to increase their basal resistance to future attacks [ 87 ]. Periods of heat stress during climate change should be investigated further as a driver of infection patterns and epidemiology in animals as they age.…”

Section: Discussionmentioning

confidence: 99%

Dual stressors of infection and warming can destabilize host microbiomes

Li,

Gao,

Stevens

et al. 2024

Phil. Trans. R. Soc. B

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Climate change is causing extreme heating events and intensifying infectious disease outbreaks. Animals harbour microbial communities, which are vital for their survival and fitness under stressful conditions. Understanding how microbiome structures change in response to infection and warming may be important for forecasting host performance under global change. Here, we evaluated alterations in the microbiomes of several wild Caenorhabditis elegans isolates spanning a range of latitudes, upon warming temperatures and infection by the parasite Leucobacter musarum . Using 16S rRNA sequencing, we found that microbiome diversity decreased, and dispersion increased over time, with the former being more prominent in uninfected adults and the latter aggravated by infection. Infection reduced dominance of specific microbial taxa, and increased microbiome dispersion, indicating destabilizing effects on host microbial communities. Exposing infected hosts to warming did not have an additive destabilizing effect on their microbiomes. Moreover, warming during pre-adult development alleviated the destabilizing effects of infection on host microbiomes. These results revealed an opposing interaction between biotic and abiotic factors on microbiome structure. Lastly, we showed that increased microbiome dispersion might be associated with decreased variability in microbial species interaction strength. Overall, these findings improve our understanding of animal microbiome dynamics amidst concurrent climate change and epidemics. This article is part of the theme issue ‘Sculpting the microbiome: how host factors determine and respond to microbial colonization’.

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Section: Discussionmentioning

confidence: 99%

Dual stressors of infection and warming can destabilize host microbiomes

Li,

Gao,

Stevens

et al. 2024

Phil. Trans. R. Soc. B

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“…The use of resistance inducers in plant priming (PRIs) is increasingly recognized as an important approach in sustainable agriculture, owing to their potential to reduce environmental impact and minimize metabolic costs for plants (Perazzolli et al 2022). Peptides, such as systemin, are one of these PRIs that are gaining more attention due to their recognized role as defence signalling molecules, with ability to amplify the immune response of the plant against invading attackers (Pastor-Fernández et al 2023).…”

Section: Discussionmentioning

confidence: 99%

Exogenous systemin peptide treatment in olive alters Bactrocera oleae (Diptera, Tephritidae) oviposition preference

Sánchez

Cunha

Rodrigues

et al. 2023

Preprint

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The olive fruit fly, Bactrocera oleae (Rossi), is a key pest of the olive crop, whose control relies mostly on the use of insecticides. Plant peptides may represent a more environmentally-friendly tool to manage olive fly, due to their recognized role to activate and/or prime plant defence responses against pests. In this work, behavioural experiments (no-choice and two-choice) and analysis of volatile compounds were carried out in order to evaluate the impact of the exogenous application of the peptide systemin to olive tree on olive fly infestation, and to elucidate its mode of action to prime plant defence. The treatment of olive branches with 10 nM systemin showed to confer protection against olive fly, by reducing significantly the ovipositions (up to 3.0-fold) and the number of infested fruits (up to 2.9-fold) when compared to not-treated branches. This protective effect was even detected in neighbouring not-treated branches, suggesting the ability of systemin to trigger plant-to-plant communication. The deterrent activity of the primed olives was associated with the emission of the volatiles 2-ethyl-1-hexanol, 4-tert-butylcyclohexyl acetate and 1,2,3-trimethyl-benzene, which were negatively correlated with oviposition and fly infestation. Systemin also showed to trigger the biosynthesis of specific volatiles (esters) in olives in response to fly attacks. Overall, the observed protection conferred by systemin against olive fly is likely due to the emission of specific volatiles that can act as a defence and/or as signalling molecules to upregulate the plant defence response. Thus, systemin represents a novel and useful tool to manage olive fruit fly.

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“…[28][29][30][31] Priming is an essential defense mechanism for IR, enabling an improved or more rapid response to the second challenge. 32 Phytohormones are one of the distinctive substances that play an important role in priming and regulating a plant's induction defenses. [33][34][35][36] Jasmonic acid (JA), salicylic acid (SA), ascorbic acid (AA) and ethylene are the most utilized phytohormones.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, IR can often increase the level of physical and chemical defense, resulting in a decrease in herbivore preference (antixenosis) and fitness (e.g., antibiosis) 28–31 . Priming is an essential defense mechanism for IR, enabling an improved or more rapid response to the second challenge 32 . Phytohormones are one of the distinctive substances that play an important role in priming and regulating a plant's induction defenses 33–36 .…”

Section: Introductionmentioning

confidence: 99%

Demography of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) reared on elicitor‐treated tomato plants with an innovative comparison of projected population sizes and application of the multinomial theorem for population survival

Gharekhani

Salekebrahimi

Chi

2023

Pest Management Science

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BACKGROUNDDue to the considerable damage of tomato leafminer in tomato crop, the use of integrated methods is essentially recommended. In this study, the effect of three different elicitors, i.e., methyl jasmonate (MJ), salicylic acid (SA) and ascorbic acid (AA) on the life table parameters of Tuta absoluta were evaluated. The paired bootstrap test and the different bootstrap percentiles were used to compare the projected population sizes on specific date. The survival probabilities were calculated by innovatively linking of life table and multinomial theorem.RESULTSThe preadult duration and mortality significantly increased, and the net reproductive rate (R0), intrinsic rate of increase (r), and finite rate of increase (λ) significantly decreased in all elicitor treatments. The lowest fecundity (F = 71.89 eggs/female) was observed in SA treatment, with R0 of 13.48 offspring/individual, r of 0.0932 d‐1, and λ of 1.0977 d‐1. The population projection revealed the stage structure of T. absoluta during population growth and the elicitor treatments significantly reduced the population growth of T. absoluta. The survival probability of bootstrap samples significantly lowered; whereas, the extinction probabilities increased in elicitor treatments than control when the survival criterion is set to two fertile pairs.CONCLUSIONOur results demonstrated that the application of elicitors could reduce the risks of the T. absoluta damage. Furthermore, population projection based on life tables is applicable to obtain the frequency distribution of population size at different times. The joined application of life table and multinomial theorem can be used to calculate the risk of pest emergence.This article is protected by copyright. All rights reserved.

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Editorial: Induced resistance and priming against pests and pathogens

Cited by 6 publications

References 8 publications

Dual stressors of infection and warming can destabilize host microbiomes

Dual stressors of infection and warming can destabilize host microbiomes

Exogenous systemin peptide treatment in olive alters Bactrocera oleae (Diptera, Tephritidae) oviposition preference

Demography of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) reared on elicitor‐treated tomato plants with an innovative comparison of projected population sizes and application of the multinomial theorem for population survival

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