Effect of Potato virus X on total phenol and alkaloid contents in Datura stramonium leaves

Duarte, L. M. L.; Salatino, Maria Luiza Faria; Salatino, Antônio; Negri, Giuseppina; Barradas, Maria Mércia

doi:10.1590/s0100-54052008000100013

Cited by 11 publications

(16 citation statements)

References 4 publications

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“…It was well expressed in the reduction in the phytochemcial contents of saponins, alkaloids, terpenoids, reducing sugars and steroids. Reductions engendered by MWMV infection are in agreement with previous reports by El-Dougdoug et al (2007), Duarte et al (2008) and Mofunanya and Nta (2011). Significant increases in glycosides and flavonoids and insignificant increase in tannins in infected samples reported in this study are in line with findings by Uegaki et al (1998), who reported on the accumulation of stress compounds due to virus infection.…”

Section: Discussionsupporting

confidence: 93%

“…El-Dougdoug et al (2007) reported that PVY infection led to a decrease in total alkaloids contents in leaves of Datura metel. Duarte et al (2008) also reported a decrease in total phenol and alkaloids content in the same plant inoculated with PVX. Report by Rangaraju and Chenulu (1975) revealed that mosaic virus reduces the fruit content of solasonin (a medically useful alkaloids) to about half.…”

Section: Introductionmentioning

confidence: 82%

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Physiological and Biochemical Changes in Cucurbita moschata Duch. Ex. Poir Inoculated with a Nigerian Strain of Moroccan Watermelon Mosaic Virus (MWMV): Lagenaria breviflora Isolate

Mofunanya¹,

Edu²

2015

International J. of Plant Pathology

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This study was carried out to determine physiological and biochemical changes in C. moschata inoculated with a Nigerian strain of MWMV isolated from Lagenaria breviflora in Calabar, Nigeria. The virus infection resulted in significant (p#0.05) reductions in plant height, leaf area and number of leaves produces with highest percentage difference of 39.3% (42 PID), 60.9% (35 PID) and 25.7% (49 PID), respectively. There was a significant (p#0.05) difference in chlorophyll content between inoculated and healthy plants. The chlorophyll content of inoculated plants at all stages of growth was lower compared with the healthy plants. Chlorophyll b content was higher than Chl a in both inoculated and healthy plants. Chlorophyll a, b and total Chlorophyll were significantly reduced in inoculated plants when compared with the healthy ones. Of the twelve photochemicals screened, alkaloids, glycosides, saponins, tannins, terpenoids, steroids, polyphenols and reducing sugars were present while phlobatanins, anthraquinones and hydroxymethyl anthraquinones were absent. Moroccan watermelon mosaic virus engendered reductions in alkaloids (32.1%), reducing sugars (42.0%), saponins (33.6%), terpenoids (25.0%) and steroids (15.0%) and increase in inoculated samples of glycosides (14.8%) and flavonoids (12.5%). Effect of MWMV on proximate compositions of C. moschata revealed significant p#0.05) reductions in lipid (25.0%) and ash (14.6%) and significant (p$0.05) increases in protein (23.4%) and fibre (10.5%). Effect of the virus on carotene, vitamin A and C were insignificant. Infection of MWMV also led to significant decreases in the contents of K (48%), Fe (28.6%), Zn (25.0%) and Mg (22.0%), while Cu recorded 100% increase in inoculated samples. Marginal increase in Ca and P were recorded in inoculated samples. Infection of MWMV on antioxidants caused significant increase in inoculated samples of hydrocyanic acid and insignificant increases in total and soluble oxalate and phytic acid. Increases recorded in the antioxidant contents in plants inoculated with MWMV resulted in reduced bioavailability of minerals in the vegetable. Reduction in chlorophyll contents in inoculated plants would be a major factor explaining poor growth of host plants with attendant reductions in mineral elements of C. moschata. Changes in physiological and biochemical parameters induced by MWMV altered vital metabolic processes of C. moschata.

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 82%

Physiological and Biochemical Changes in Cucurbita moschata Duch. Ex. Poir Inoculated with a Nigerian Strain of Moroccan Watermelon Mosaic Virus (MWMV): Lagenaria breviflora Isolate

Mofunanya¹,

Edu²

2015

International J. of Plant Pathology

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“…By using certain modifiers/ spreaders and micropropogating the plants of B. diffusa on suitable modified MS medium, the antiviral activity has been markedly improved and prolonged. Thus, a modest beginning towards successful virus control has been made [236][237][238][239][240][241][242]. …”

Section: Ecofriendly Managementmentioning

confidence: 99%

Current status of viral diseases of potato and their ecofriendly management -A critical review

Lp¹,

Hn²

2017

Virol Res Rev

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“…The fourth and fifth leaves above the cotyledonaries of the C 2 group were rubbed with 50 lL of inoculation buffer. Leaves of PVY O group at the same position as those from C 2 group were treated with 50 lL of the virus inoculum (Duarte et al 2008).…”

Section: Experimental Designmentioning

confidence: 99%

“…These metabolic changes can still be different in the local of infection or systemically (Krečič-Stres et al 2005;Choi et al 2006;Duarte et al 2008) and depending on the resistance of the plant to a specific pathogen (Krečič-Stres et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Potato virus Y infection affects flavonoid profiles of Physalis angulata L.

Nagai

Duarte²,

Chaves³

et al. 2015

Braz. J. Bot

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Physalis angulata L. is an annual herb of Solanaceae. Among several biological activities described for this species, its cytotoxic action is due to the presence of flavonoids. Natural infection of P. angulata by Potato virus Y, strain O (PVY O ), has already been described. The main goal of this study is to verify whether PVY O infection influences the secondary metabolism of P. angulata, evaluating total amount of phenolic compounds and the content and profiles of flavonoids. Twenty-day-old plants were distributed into three groups: control (C 1 ), mechanically injured (C 2 ), and artificially inoculated (PVY O ). After 21 days, leaves from local and systemic infection were collected and compounds were analyzed by UV-Vis and HPLC. Five flavonoids were partially identified as rutin, kaempferol-4 0 -O-ramnoglucosyl, kaempferol-3-Oramnoglucosyl, and two other kaempferol derivatives. Quantitative analysis of total phenolic compounds and total flavonoid in the local infection were similar, with higher percentage in the C 1 group, followed by the PVY O group and, consequently, the lowest percentage present in C 2 group. There were no qualitative differences in flavonoid profiles between healthy and infected groups. However, lower concentrations of these compounds were detected in the systemic infection of infected plants, suggesting that PVY O influences secondary metabolism by reducing the amounts of flavonoids.

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Effect of Potato virus X on total phenol and alkaloid contents in Datura stramonium leaves

Cited by 11 publications

References 4 publications

Physiological and Biochemical Changes in Cucurbita moschata Duch. Ex. Poir Inoculated with a Nigerian Strain of Moroccan Watermelon Mosaic Virus (MWMV): Lagenaria breviflora Isolate

Physiological and Biochemical Changes in Cucurbita moschata Duch. Ex. Poir Inoculated with a Nigerian Strain of Moroccan Watermelon Mosaic Virus (MWMV): Lagenaria breviflora Isolate

Current status of viral diseases of potato and their ecofriendly management -A critical review

Potato virus Y infection affects flavonoid profiles of Physalis angulata L.

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