The phytohormone methyl jasmonate as an activator of induced resistance against the necrotroph<i>Alternaria porri</i>f. sp.<i>solani</i>in tomato plants

Kępczyńska, Ewa; Król, Paulina

doi:10.1080/17429145.2011.645169

Cited by 40 publications

(29 citation statements)

References 42 publications

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“…In our study, abnormally developed embryos were mainly observed in embryogenic material elicited with high concentrations (25 or 50 µM) of BTH or PABA. Other authors also reported that high concentrations of some elicitors could negatively influence the biologic development of plant material 37 . On the contrary, MeJA application produced a recovery in the differentiation capacity of an embryogenic line of Quercus ilex 36 .…”

Section: Discussionmentioning

confidence: 98%

Effect of elicitors on holm oak somatic embryo development and efficacy inducing tolerance to Phytophthora cinnamomi

Morcillo

Sales

Ponce

et al. 2020

Sci Rep

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Holm oak trees (Quercus ilex L.) mortality is increasing worryingly in the Mediterranean area in the last years. To a large degree this mortality is caused by the oomycete Phytophthora spp., which is responsible for forest decline and dieback in evergreen oak forest areas of the southwestern Iberian Peninsula. This study is based on the possibility of applying chemical elicitors or filtered oomycete extracts to holm oak somatic embryos (SE) in order to induce epigenetic memory, priming, that may increase tolerance to the pathogen in future infections. To this end, we first examined the effect of priming treatments on SE development and its oxidative stress state, to avoid elicitors that may cause damage to embryogenic tissues. Both, the sterile oomycete extracts and the chemical elicitor methyl jasmonate (MeJA) did not produce any detrimental effect on SE growth and development, unlike the elicitors benzothiadiazole (BTH) and p-aminobenzoic acid (PABA) that reduced the relative weight gain and resulted in necrotic and deformed SE when were applied at high concentrations (25 µM BTH or 50 µM PABA) in accordance with their high malondialdehyde content. No significant differences among elicitation treatments were found in dual culture bioassays, although those SEs elicited with 50 µM MeJA increased H2O2 production after challenged against active oomycete indicating the activation of stress response. Since this elicitation treatment did not produce any adverse effect in the embryogenic process we suggest that could be used in further priming experiments to produce holm oak plants adapted to biotic stress.

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Section: Discussionmentioning

confidence: 98%

Effect of elicitors on holm oak somatic embryo development and efficacy inducing tolerance to Phytophthora cinnamomi

Morcillo

Sales

Ponce

et al. 2020

Sci Rep

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“…Activated effectors continue to transfer the signals of molecule SA to secondary messengers which could amplify the signals and send them to other reactions (Rivas & Thomas 2005). As a result of signal transduction, a series of defence responses are induced, including increased ion fluxes, extracellular alkalinization, cytoplasmic acidification, nicotinamide adenine dinucleotide phosphate oxidase activation, oxidative burst, ROS production, HR, phosphorylation, and early defence reactions (Koornneef et al 2008;Kepczynska & Kro 2012;Mishra et al 2012;Chinta et al 2015;Al-Issawi et al 2016).…”

Section: Discussionmentioning

confidence: 99%

Salicylic acid-induced accumulation of biochemical components associated with resistance against Xanthomonas oryzae pv. oryzae in rice

Thạnh

Thumanu

Wongkaew

et al. 2017

Journal of Plant Interactions

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Seed treatment and foliar sprays of salicylic acid (SA) provided protection in rice against bacterial leaf blight (BLB) caused by bacterial Xanthomonas oryzae pv. oryzae (Xoo). Treatment of rice with exogenous SA reduced disease severity by more than 38%. Superoxide anion production and hypersensitive response increased approximately 28% and 110% at 6 and 48 h after Xoo inoculation, respectively, for plants treated with SA. Moreover, the Xoo in treated rice plants grew more slowly, resulting in a population that was half of that observed in the control. Fourier transform infrared spectroscopy analysis revealed that the higher ratios of 1233/1517, 1467/1517, and 1735/1517 cm −1 observed in treated rice suggested alteration of monomer composition of lignin and pectin in the rice cell wall. Exogenous SA-treated rice had more amide I β-sheet structure and lipids as shown by the peaks at 1629, 2851, and 1735 cm −1. These biochemical changes of rice treated with SA and inoculated with Xoo were related to primed resistance of the rice plants to BLB disease.

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“…Thus, the effect may also be achieved by the exogenous application of some substances. For example, resistance induction against Alternaria porri was observed in tomato after application of methyl jasmonate (Kępczyńska & Król 2012) and in pearl millet by oligosacharides of Trichoderma virens against downey mildew (Nandini et al 2013). It is likely that resveratrol enters the plant metabolic network associated with cellular response to the pathogen.…”

Section: Introductionmentioning

confidence: 99%

Resveratrol stimulates phenolic metabolism and PSII efficiency in wheat infected with powdery mildew

Pociecha

Janeczko

2013

Journal of Plant Interactions

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The beneficial effects of trans-resveratrol on pathogen-response and its physiological mechanisms were studied in two wheat cultivars differing in the level of resistance against powdery mildew (Blumeria graminis (DC.) Speer). Resveratrol induced phenolics metabolism in a manner that lead to increased phenylalanine ammonia-lyase (PAL) and β-D-glucosidase activity in leaf regions showing no symptoms of pathogen infection. In less-resistant cultivar, similar alterations were additionally observed in regions invaded by the pathogen. Resveratrol also stimulated photosynthetic efficiency during pathogenesis and this effect was more prominent in the resistant cultivar. Regulatory function of resveratrol on wheat growth and development was also observed (stimulation of generative induction). High performance liquid chromatography (HPLC) analysis detected a low amount of compound with retention time corresponding to trans-resveratrol in healthy leaves and increased the content of this compound in infected foliage. The multidirectional properties of resveratrol activity in wheat plants are discussed.

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The phytohormone methyl jasmonate as an activator of induced resistance against the necrotrophAlternaria porrif. sp.solaniin tomato plants

Cited by 40 publications

References 42 publications

Effect of elicitors on holm oak somatic embryo development and efficacy inducing tolerance to Phytophthora cinnamomi

Effect of elicitors on holm oak somatic embryo development and efficacy inducing tolerance to Phytophthora cinnamomi

Salicylic acid-induced accumulation of biochemical components associated with resistance against Xanthomonas oryzae pv. oryzae in rice

Resveratrol stimulates phenolic metabolism and PSII efficiency in wheat infected with powdery mildew

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