Benzothiadiazole (BTH) induces resistance to Pepper golden mosaic virus (PepGMV) in pepper (Capsicum annuum L.)

Trejo-Saavedra, Diana Lilia; García-Neria, Marco A.; Rivera-Bustamante, R. F.

doi:10.4067/s0716-97602013000400004

Cited by 30 publications

(16 citation statements)

References 20 publications

(28 reference statements)

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“…These results are in agreement with those reported by Trejo-Saavedra et al [40] in pepper crops infected with begomoviruses or those reported in tomato infected with Cucumber mosaic virus [50]. Our results strongly suggest that the observed hypersusceptibility is due to the absence of SA, as it can be reverted by BTH.…”

Section: Discussionsupporting

confidence: 94%

“…Based on previously reported BTH concentrations for foliar treatments in different plants including tomato [38–40], 1 mM BTH treatments were employed. This concentration had no visible effect on plant development in Money Maker plants and prevented the necrotic phenotype of NahG plants, which were grown at high light conditions for correct viroid replication [14].…”

Section: Resultsmentioning

confidence: 99%

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Salicylic Acid Is Involved in the Basal Resistance of Tomato Plants to Citrus Exocortis Viroid and Tomato Spotted Wilt Virus

et al. 2016

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Tomato plants expressing the NahG transgene, which prevents accumulation of endogenous salicylic acid (SA), were used to study the importance of the SA signalling pathway in basal defence against Citrus Exocortis Viroid (CEVd) or Tomato Spotted Wilt Virus (TSWV). The lack of SA accumulation in the CEVd- or TSWV-infected NahG tomato plants led to an early and dramatic disease phenotype, as compared to that observed in the corresponding parental Money Maker. Addition of acibenzolar-S-methyl, a benzothiadiazole (BTH), which activates the systemic acquired resistance pathway downstream of SA signalling, improves resistance of NahG tomato plants to CEVd and TSWV. CEVd and TSWV inoculation induced the accumulation of the hydroxycinnamic amides p-coumaroyltyramine, feruloyltyramine, caffeoylputrescine, and feruloylputrescine, and the defence related proteins PR1 and P23 in NahG plants earlier and with more intensity than in Money Maker plants, indicating that SA is not essential for the induction of these plant defence metabolites and proteins. In addition, NahG plants produced very high levels of ethylene upon CEVd or TSWV infection when compared with infected Money Maker plants, indicating that the absence of SA produced additional effects on other metabolic pathways. This is the first report to show that SA is an important component of basal resistance of tomato plants to both CEVd and TSWV, indicating that SA-dependent defence mechanisms play a key role in limiting the severity of symptoms in CEVd- and TSWV-infected NahG tomato plants.

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Section: Discussionsupporting

confidence: 94%

Section: Resultsmentioning

confidence: 99%

Salicylic Acid Is Involved in the Basal Resistance of Tomato Plants to Citrus Exocortis Viroid and Tomato Spotted Wilt Virus

et al. 2016

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“…In another study, resistance was induced in pepper plants against PepGMV infection. Pepper plants treated with BTH were characterized for resistance depending on symptom appearance, virus accumulation and viral movement (Trejo-Saavedra et al, 2013).…”

Section: Similar Work Have Also Been Demonstrated In Tobacco Andmentioning

confidence: 99%

“…Most studies showing efficient activity of chemical SAR activators follow spray application of the chemicals. The spraying of solution ranging in concentrations of 0.5 mM to 1 mM has shown positive results (Kessmann et al, 1994;Gorlach et al, 1996;Conrath et al, 1995;Trejo-Saavedra et al, 2013).…”

Section: Application Of Chemical Sar Activatorsmentioning

confidence: 99%

Efficacy of Biotic and Chemical Inducers of SAR in Management of Plant Viruses

Dutta¹,

Kumar²,

Borah³

2019

IJEP

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The objective of this study was to review the published research works on management of viral diseases of crop plants in recent years using microbial antagonists and chemical inducers of SAR. Systemic acquired resistance (SAR) and induced systemic resistance (ISR) are two forms of induced resistance; in both SAR and ISR, plant defenses are preconditioned by prior infection or treatment that results in resistance (or tolerance) against subsequent challenge by a pathogen or parasite. Much of this knowledge is due to the identification of a number of chemical and biological elicitors, some of which are commercially available for use in conventional agriculture. The biocontrol potential of Bacillus spp. and Pseudomonas spp in relation with their antagonizing attributes against plant viruses revealed their efficacy against Tobacco Mosaic Virus (TMV), Cotton leaf curl virus (CLCuV), Cucumber mosaic virus (CMV) and some other plant viruses are discussed in this review. Recent researches on mechanisms of biological control by PGPR revealed that several plant growth promoting rhizobacteria (PGPR) strains protect plants against viral infection through induction of systemic resistance. Studies were done to evaluate specific strains of PGPR for induced resistance in indicator plants like Chenopodium and Arabidopsis thaliana. The classic form of SAR can be triggered by exposing plant to virulent, avirulent, and nonpathogenic microbes viz. microbial antagonist, or artificially with chemicals such as salicylic acid 2,6-dichloro-isonicotinic acid (INA) or benzo (1, 2, 3) thiadiazole-7-carbothioic acid S-methyl ester (BTH) etc. which are considered as chemical inducers of SAR. Progress with efficient use of different biological agents against plant viruses is a worthwhile approach in context of sustainable crop health management. 2. Biotic and Chemical Inducers of Systemic Acquired Resistance against Plant Viruses Plants develop a generalized resistance in response to infection

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“…Previously, it has been reported that pepper plants subjected to biolistic inoculation with Pepper golden mosaic virus (PepGMV, Begomovirus) and treated with Benzothiadiazole (BTH) showed a 5-6-fold reduction in viral concentration compared to the untreated plants (Trejo-Saavedra et al, 2013). In the present study, an approximately 4-fold reduction in viral concentration was obtained for tomato plants that received inoculations with ToSRV and ToCV at 45 DAT and subjected to the pretreatment and biweekly sprayings compared to the viral concentration in untreated plants (Figure 1).…”

Section: Resultsmentioning

confidence: 99%

Fungicide application can improve production of tomato coinfected with Begomovirus and Crinivirus

Guimarães

Nozaki

Moura

et al. 2017

Pesq. agropec. bras.

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-The objective of this work was to evaluate the effect of fungicide application on the concentration of Tomato severe rugose virus (ToSRV, Begomovirus) in the 'Mariana' hybrid tomato coinfected with ToSRV and Tomato chlorosis virus (ToCV, Crinivirus) and the progression of viral concentration by qPCR, as well as to quantify fruit yield and quality. Experiment I consisted in the application of fungicides after sowing (pretreatment): pyraclostrobin+metiram (P+M) (at 3 g L ); in experiment II, there was no application at sowing (control treatment), only 4 g L -1 P+M biweekly. ToSRV and ToCV transmissions were performed using sweetpotato whiteflies (Bemisia tabaci, biotype B), at 15, 30, 45, 60, and 70 days after transplanting (DAT). There was an increase in yield, better fruit quality, and a reduction in the ToSRV concentration in the plants, when the viruses were transmitted late and pretreatment was performed. Tray pretreatment in sowing with P+M (3 g L ), aumenta a produção e a qualidade dos frutos, em tomateiro híbrido 'Mariana' coinfectado aos 45, 60 e 75 DAT por ToSRV e ToCV, e há redução da concentração de ToSRV.Termos para indexação: Solanum lycopersicum, boscalida, metiram, piraclostrobina, ToCV, ToSRV.

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Benzothiadiazole (BTH) induces resistance to Pepper golden mosaic virus (PepGMV) in pepper (Capsicum annuum L.)

Cited by 30 publications

References 20 publications

Salicylic Acid Is Involved in the Basal Resistance of Tomato Plants to Citrus Exocortis Viroid and Tomato Spotted Wilt Virus

Salicylic Acid Is Involved in the Basal Resistance of Tomato Plants to Citrus Exocortis Viroid and Tomato Spotted Wilt Virus

Efficacy of Biotic and Chemical Inducers of SAR in Management of Plant Viruses

Fungicide application can improve production of tomato coinfected with Begomovirus and Crinivirus

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