Effects of exogenous methyl jasmonate and salicylic acid on rice resistance to<scp><i>Oebalus pugnax</i></scp>

Freitas, Thais Fernanda Stella de; Stout, Michael J.; Sant’Ana, Josué

doi:10.1002/ps.5174

Cited by 45 publications

(20 citation statements)

References 65 publications

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“…MeJA and MeSA are signaling molecules that are produced in plants for the development and modulation of resistance to insects and pathogens [ 31 ]. Exogenous applications of MeJA and MeSA to plants imitate responses similar to that when plants are attacked by pathogens or herbivores and can enhance the production of secondary plant metabolites [ 30 , 32 , 33 ]. A common modification of plant secondary metabolites is methylation, catalyzed by various methyltransferases.…”

Section: Resultsmentioning

confidence: 99%

Profiling of Altered Metabolomic States in Bidens pilosa Leaves in Response to Treatment by Methyl Jasmonate and Methyl Salicylate

Ramabulana

Steenkamp

Madala

et al. 2020

Plants

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Bidens pilosa (Asteraceae) is an edible medicinal plant with many bioactivities reported to have a health-beneficial role in controling various diseases. Though B. pilosa contain a diverse array of natural products, these are produced in relatively low concentrations. A possible way to enhance secondary metabolite production can be through the use of elicitors. Here, the effects of exogenous treatments with two signal molecules—methyl jasmonate (MeJA) and methyl salicylate (MeSA)—on the metabolomic profiles of B. pilosa leaves were investigated. Plants were treated with 0.5 mM of MeJA or MeSA and harvested at 12 h and 24 h. Metabolites were extracted with methanol and separated on an ultra-high performance liquid chromatography system hyphenated to quadrupole time-of-flight mass spectrometry detection. Data was subjected to multivariate statistical analysis and modeling for annotation of metabolites. Hydroxycinnamic acid (HCA) derivatives, such as caffeoylquinic acids (CQAs), tartaric acid esters (chicoric acid and caftaric acid), chalcones, and flavonoids were identified as differentially regulated. The altered metabolomes in response to MeSA and MeJA overlapped to a certain extent, suggestive of a cross-talk between signaling and metabolic pathway activation. Moreover, the perturbation of isomeric molecules, especially the cis geometrical isomers of HCA derivatives by both treatments, further point to the biological significance of these molecules during physiological responses to stress. The results highlight the possibility of using phytohormones to enhance the accumulation of bioactive secondary metabolites in this plant.

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Section: Resultsmentioning

confidence: 99%

Profiling of Altered Metabolomic States in Bidens pilosa Leaves in Response to Treatment by Methyl Jasmonate and Methyl Salicylate

Ramabulana

Steenkamp

Madala

et al. 2020

Plants

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“…Application of MJ activates production of plant defensive compounds and expression of resistance-related genes, subsequently reducing insect herbivory (Yu et al 2019). Thus, utilizing MJ-induced defenses has emerged as an effective method to increase plant protection against various crop pests (Stella de Freitas et al 2019;Stenberg 2017).…”

Section: Introductionmentioning

confidence: 99%

Seasonal timing and recurrence of methyl jasmonate treatment influence pine weevil damage to Norway spruce seedlings

et al. 2020

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Defense can be induced in conifer seedlings to reduce pine weevil (Hylobius abietis) damage, by treatment with the plant hormone methyl jasmonate (MJ). Few studies have addressed important practical issues regarding the use of MJ such as treatment incidence and timing, seedling age and its compatibility with plant nursery practices. We examined if levels of pine weevil damage depend on seasonal timing and recurrence of MJ treatment, and if the observed effects depend on plant age. Norway spruce (Picea abies) seedlings from two age cohorts (1 year and 1.5 years old) received four MJ treatments: MJ application before winter storage in the previous year, after winter storage but before spring/summer planting, repeated MJ application (both before winter storage, and before planting) or no MJ application at all. Pine weevil damage was evaluated in a lab and field experiment. We found that the timing and recurrence of MJ treatment affected the amount of damage inflicted by pine weevils in different ways, but these effects were consistent among age cohorts. MJ application before winter storage provided the most effective protection, and this reduction in damage was comparable to that provided by a currently used physical protection method against pine weevil feeding. Our results indicated that MJ can be applied in line with nursery practices (before winter storage) and provides adequate protection for two growing seasons.

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“…MJ had repellent effects on leaf folders [Senthil-Nathan 2019], aphids, phytophagous thrips species and hoverfly species, the phloem feeder, the potato aphid Macrosiphum euphorbiae [Brunissen et al 2010], the soybean aphid Aphis glycines and the soybean thrips Neohydatothrips variabilis [Selig et al 2016]. What is important, with reduced number of the stink bug, Oebalus pugnax, also grains per panicle in rice elevated under MJ (2 and 5 mM) treatment [Stella de Freitas et al 2019], but MJ application also led to reductions in Triticum aestivum yield and plant height [Bayram and Tonğa 2018]. Simultaneously, MJ was attractive to wheat stem sawflies, lady beetle species [Bayram and Tonğa 2018], small-flower bug Orius spp.…”

Section: Figmentioning

confidence: 99%

Methyl Jasmonate – A Multifunctional Molecule Throughout the Whole Plant Life

Hanaka

Nurzyńska-Wierdak

2019

asphc

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Methyl jasmonate (MJ) is a widely occurring molecule. Since it is synthesized constitutively, its presence is substantial to plant normal growth and development. Moreover, its elevated concentration detected under abiotic and biotic stress conditions seems to be crucial to plant in reacting to adverse events and its ability to survive. Because of the sophisticated biochemical machinery inside the plant body, MJ, among other molecules, helps the plant to adopt to the surrounding environmental changes and is involved in its defense system.

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Effects of exogenous methyl jasmonate and salicylic acid on rice resistance toOebalus pugnax

Abstract: Rice plants possess defense mechanisms that can be elicited using hormones as elicitors, mainly SA 16 mmol L , to induce resistance against RSB. © 2018 Society of Chemical Industry.

Cited by 45 publications

References 65 publications

Profiling of Altered Metabolomic States in Bidens pilosa Leaves in Response to Treatment by Methyl Jasmonate and Methyl Salicylate

Profiling of Altered Metabolomic States in Bidens pilosa Leaves in Response to Treatment by Methyl Jasmonate and Methyl Salicylate

Seasonal timing and recurrence of methyl jasmonate treatment influence pine weevil damage to Norway spruce seedlings

Methyl Jasmonate – A Multifunctional Molecule Throughout the Whole Plant Life

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