Polyamines in tomato plants grown during an incidence of tospovirus exposure

Guimarães, Leysimar Ribeiro Pitzr; Soler, Júlia Maria Pavan; Lima, Giuseppina Pace Pereira; Pavan, Marcelo Agenor

doi:10.1007/s10658-014-0490-x

Cited by 4 publications

(4 citation statements)

References 18 publications

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“…These results can improve the seedlings development due to the seed treatment, and Thiametoxan acting as a bioactivator in providing a larger aerial plant part (Acevedo and Clavijo, 2008;Lauxen et al, 2010). Pyraclostrobin + Metiram applied in tomatoes promoted an increase in the weight and volume (Guimarães et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

Physiological quality of bean genotypes seeds peanut and xamego treated with fungicides and insecticides

Maciel¹,

Lima²,

Fern³

et al. 2018

Afr. J. Agric. Res.

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Bean is one of the most important crops because it is a staple food. In order to control diseases and pests, the use of fungicides and insecticides in the seed treatment are efficient methods. In this sense, the aim of this study was to evaluate the effect of fungicides and insecticides on physiological quality of bean seeds. The experiment was conducted in a laboratory and greenhouse, and seeds of two genotypes of common bean (Peanut and Xamego) were used. The seeds were treated with the following fungicides: Captan, Fluazinam, Metioram and insecticides: Acefate, Imidacloprid and Thiametoxan. The experiment was arranged in a completely randomized design, with replications and seven treatments. Not treated seeds were utilized as control. The bean seeds treatment of the genotype Peanut and Xamego using insecticide and fungicide did not affect the physiological quality of the seeds. Xamego genotypes shows greater vigor in the laboratory, while the Peanut genotype in the greenhouse, and the treatments do not interfere in the initial growth of the plants.

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Section: Resultsmentioning

confidence: 99%

Physiological quality of bean genotypes seeds peanut and xamego treated with fungicides and insecticides

Maciel¹,

Lima²,

Fern³

et al. 2018

Afr. J. Agric. Res.

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“…Verona treated with M + P. Higher polyamine levels were also found in tomato (Solanum lycopersicum, cv. Saladinha) treated with metiram + pyraclostrobin (4.0 g L -1 ) (Guimarães et al, 2014). These data may provide evidence that plants with high Spd and Spm levels could be less susceptible to the action of pathogens or abiotic stress and could thus improve their commercial durability.…”

Section: Polyamine Content In Response To Fungicidesmentioning

confidence: 88%

“…These data may provide evidence that plants with high Spd and Spm levels could be less susceptible to the action of pathogens or abiotic stress and could thus improve their commercial durability. Both Spd and Spm have been described as one plant mechanism of protection against some stresses (Moschou et al, 2012;Guimarães et al, 2014;Zapata et al, 2017). The accumulation of Spd and Spm in response to the application of fungicides can be a determining factor for maintaining the post-harvest quality.…”

Section: Polyamine Content In Response To Fungicidesmentioning

confidence: 99%

Pre-harvest application of fungicides influences the post-harvest quality of cauliflower (Brassica oleracea var. botrytis L.)

et al. 2019

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Two cauliflower cultivars (cv.) (Flamenco and Verona) were treated with fungicides (boscalid (Cantus®)) (0.3 g L-1), pyraclostrobin + fluxapyroxad (Orkestra® SC) (0.3 mL L-1), metiram + pyraclostrobin (Cabrio® Top) (3.0g L-1) and metiram + pyraclostrobin + boscalid (Cantus® + Cabrio® Top) in order to evaluate their chemical composition and their influence on post-harvest quality. The fungicides were applied during the seedling stage as well as 30 days before harvest. Freshly harvested inflorescences were analyzed at 3-day intervals for up to 12 days in storage (10 ± 2 °C and 92 ± 2 % RH) to verify the polyamine content, peroxidase and polyphenoloxidase activities and physicochemical attributes. All fungicides induced changes in polyamine metabolic pathways, resulting in increased levels of spermidine and spermine. These compounds may be related to the reduced activity of polyphenoloxidase and peroxidase and to cauliflower senescence. Pre-harvest application of metiram + pyraclostrobin + boscalid to cv. Flamenco and of fluxapyroxad + pyraclostrobin to cv. Verona were found to be the most efficient treatments for improving the commercial quality of cauliflower. No levels of the fungicides applied during the cultivation were detected in the post-harvest. The fungicides applied to the pre-harvest effectively prolong the storage time and visual quality of cauliflowers cv. Flamenco and cv. Verona.

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“…Chemicals that alter plant physiology have been studied as a new strategy to control plant diseases because they activate defense mechanisms that reduce the disease incidence in different pathosystems (Udayashankar et al, 2012;Guimarães et al, 2014;Itako et al, 2015;Skandalis et al, 2016). However, little information is available on how these chemicals induce the resistance mechanisms that lead to control of viruses in tomato plants.…”

Section: Introductionmentioning

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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Polyamines in tomato plants grown during an incidence of tospovirus exposure

Cited by 4 publications

References 18 publications

Physiological quality of bean genotypes seeds peanut and xamego treated with fungicides and insecticides

Physiological quality of bean genotypes seeds peanut and xamego treated with fungicides and insecticides

Pre-harvest application of fungicides influences the post-harvest quality of cauliflower (Brassica oleracea var. botrytis L.)

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

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