Using Green &lt;I&gt;Vaccination&lt;/I&gt; to Brighten the Agronomic Future

Luna, Estrella

doi:10.1564/v27_jun_10

Cited by 26 publications

(19 citation statements)

References 31 publications

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“…Volatiles that induce systemic resistance against pathogens, such as GLVs, could be employed in agriculture as “green vaccines” against impeding pathogen attacks (Luna, ). However, knowledge on the mechanisms by which volatiles induce systemic resistance is still in its infancy, and it is not known whether broad application would cause significant reduction in plant productivity.…”

Section: Volatiles Can Function As Direct Defences Against Plant Pathmentioning

confidence: 99%

Roles of plant volatiles in defence against microbial pathogens and microbial exploitation of volatiles

Hammerbacher

Coutinho

Gershenzon

2019

Plant Cell & Environment

206

150

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Plants emit a large variety of volatile organic compounds during infection by pathogenic microbes, including terpenes, aromatics, nitrogen-containing compounds, and fatty acid derivatives, as well as the volatile plant hormones, methyl jasmonate, and methyl salicylate. Given the general antimicrobial activity of plant volatiles and the timing of emission following infection, these compounds have often been assumed to function in defence against pathogens without much solid evidence. In this review, we critically evaluate current knowledge on the toxicity of volatiles to fungi, bacteria, and viruses and their role in plant resistance as well as how they act to induce systemic resistance in uninfected parts of the plant and in neighbouring plants. We also discuss how microbes can detoxify plant volatiles and exploit them as nutrients, attractants for insect vectors, and inducers of volatile emissions, which stimulate immune responses that make plants more susceptible to infection. Although much more is known about plant volatile-herbivore interactions, knowledge of volatilemicrobe interactions is growing and it may eventually be possible to harness plant volatiles to reduce disease in agriculture and forestry. Future research in this field can be facilitated by making use of the analytical and molecular tools generated by the prolific research on plant-herbivore interactions.

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Section: Volatiles Can Function As Direct Defences Against Plant Pathmentioning

confidence: 99%

Roles of plant volatiles in defence against microbial pathogens and microbial exploitation of volatiles

Hammerbacher

Coutinho

Gershenzon

2019

Plant Cell & Environment

206

150

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“…VOCs have been extensively demonstrated to prime defenses against herbivorous insects (Kim and Felton, 2013), pathogens (Ameye et al., 2015), and environmental stresses (Cofer et al., 2018). Defense priming against pathogens has also been considered as a sort of “green vaccination” (Luna-Diez, 2016). Green leaf volatiles (GLVs) such as Z-3-hexenyl acetate, ubiquitously and rapidly released after mechanical damage of leaf tissues (Brilli et al., 2011), have been reported to prime resistance of wheat plants to the fungal pathogen F. graminearum (Ameye et al., 2015) and to reduce the damage occurring to maize plants during cold stress (Cofer et al., 2018).…”

Section: Volatile Organic Compounds (Vocs) Can Be a Natural And Eco-fmentioning

confidence: 99%

Exploiting Plant Volatile Organic Compounds (VOCs) in Agriculture to Improve Sustainable Defense Strategies and Productivity of Crops

2019

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There is an urgent need for new sustainable solutions to support agriculture in facing current environmental challenges. In particular, intensification of productivity and food security needs require sustainable exploitation of natural resources and metabolites. Here, we bring the attention to the agronomic potential of volatile organic compounds (VOCs) emitted from leaves, as a natural and eco-friendly solution to defend plants from stresses and to enhance crop production. To date, application of VOCs is often limited to fight herbivores. Here we argue that potential applications of VOCs are much wider, as they can also protect from pathogens and environmental stresses. VOCs prime plant’s defense mechanisms for an enhanced resistance/tolerance to the upcoming stress, quench reactive oxygen species (ROS), have potent antimicrobial as well as allelopathic effects, and might be important in regulating plant growth, development, and senescence through interactions with plant hormones. Current limits and drawbacks that may hamper the use of VOCs in open field are analyzed, and solutions for a better exploitation of VOCs in future sustainable agriculture are envisioned.

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“…New alternative strategies are therefore needed. Exploiting the plant's defence system to provide protection against these threats has emerged as a potential strategy against pathogen infection and disease (Luna, 2016).…”

Section: Introductionmentioning

confidence: 99%

Chitosan primes plant defence mechanisms against Botrytis cinerea, including expression of Avr9/Cf‐9 rapidly elicited genes

Vega

Holden

Hedley

et al. 2020

Plant Cell & Environment

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Current crop protection strategies against the fungal pathogen Botrytis cinerea rely on a combination of conventional fungicides and host genetic resistance. However, due to pathogen evolution and legislation in the use of fungicides, these strategies are not sufficient to protect plants against this pathogen. Defence elicitors can stimulate plant defence mechanisms through a phenomenon known as defence priming. Priming results in a faster and/or stronger expression of resistance upon pathogen recognition by the host. This work aims to study defence priming by a commercial formulation of the elicitor chitosan. Treatments with chitosan result in induced resistance (IR) in solanaceous and brassicaceous plants. In tomato plants, enhanced resistance has been linked with priming of callose deposition and accumulation of the plant hormone jasmonic acid (JA). Large-scale transcriptomic analysis revealed that chitosan primes gene expression at early time-points after infection. In addition, two novel tomato genes with a characteristic priming profile were identified, Avr9/Cf-9 rapidly elicited protein 75 (ACRE75) and 180 (ACRE180). Transient and stable over-expression of ACRE75, ACRE180 and their Nicotiana benthamiana homologs, revealed that they are positive regulators of plant resistance against B. cinerea. This provides valuable information in the search for strategies to protect Solanaceae plants against B. cinerea.

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Using Green <I>Vaccination</I> to Brighten the Agronomic Future

Cited by 26 publications

References 31 publications

Roles of plant volatiles in defence against microbial pathogens and microbial exploitation of volatiles

Roles of plant volatiles in defence against microbial pathogens and microbial exploitation of volatiles

Exploiting Plant Volatile Organic Compounds (VOCs) in Agriculture to Improve Sustainable Defense Strategies and Productivity of Crops

Chitosan primes plant defence mechanisms against Botrytis cinerea, including expression of Avr9/Cf‐9 rapidly elicited genes

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