Direct Antimicrobial Activity and Induction of Systemic Resistance in Potato Plants Against Bacterial Wilt Disease by Plant Extracts

Hassan, M. A.; Bereika, Mohamed F. F.; Abo-Elnaga, Heidi I.G.; Sallam, M.A.A.

doi:10.5423/ppj.2009.25.4.352

Cited by 37 publications

(20 citation statements)

References 28 publications

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“…Due to the increase of PPO activity the more lignins and other phenolics were synthesized to make cell walls stronger, so that it prevented invasion from pathogen [23,37]. Hassan et al [20] reported that the resistance against bacterial wilt of potato was induced by application of plant extracts, which was associated with the increase of PAL activities. In our investigation, PAL activity in watermelon roots was higher at 5, 10, 15 days after 5.…”

Section: Discussionmentioning

confidence: 99%

Companion cropping with wheat increases resistance to Fusarium wilt in watermelon and the roles of root exudates in watermelon root growth

Wang

2015

Physiological and Molecular Plant Pathology

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Section: Discussionmentioning

confidence: 99%

Companion cropping with wheat increases resistance to Fusarium wilt in watermelon and the roles of root exudates in watermelon root growth

Wang

2015

Physiological and Molecular Plant Pathology

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“…Low activities of these enzymes inside the host imply the enhanced defense system of the plant (Cavoski et al, 2012). Using aqueous plant extracts of Hibiscus sabdariffa, Punica granatum and Eucalyptus globulus, Hassan et al (2009) demonstrated the elicitation of systemic resistance in potato against BW. The in-vivo results of the higher doses (40 g/kg soil) of the dried powders of C. procera, A. vasica and T. patula are interesting.…”

Section: Discussionmentioning

confidence: 99%

Phytobiocidal management of bacterial wilt of tomato caused by Ralstonia solanacearum (Smith) Yabuuchi

Din

Ahmad

Siddique

et al. 2016

Span. j. agric. res.

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Phytobiocides are a good alternative to chemicals in managing bacterial diseases including bacterial wilt of tomato caused by Ralstonia solanacearum. In the present research study, finely ground dried powders of seven widely available medicinal plants/weeds species viz., Peganum harmala (esfand or wild rue), Calotropis procera (sodom apple), Melia azedarach (white cedar), Allium sativum (garlic), Adhatoda vasica (malabar nut), Tagetes patula (marigold) and Nerium oleander (oleander) were assessed for their anti-microbial activity, both in-vitro (10% w/v) and in-vivo (10, 20, 30, and 40 g/kg of potted soil) against R. solanacearum. Aqueous extracts (prepared as 10% w/v, soaking for 48-72 h and filtering) of C. procera, A. vasica, and T. patula inhibited the in-vitro growth of the bacterial pathogen over 60% of that produced by the standard antibiotic streptomycin. A. sativum, N. oleander and P. harmala aqueous extracts were less effective while M. azedarach showed no effect against R. solanacearum. The higher dose (40 g/kg of soil) of C. procera, A. vasica and T. patula decreased disease severity quite effectively and increased yield and plant growth characters as much as the standard antibiotic did. No phytotoxicity of medicinal plants powder was observed on tomato plants. Alkaloids, flavonoids, tannins, saponins and terpenoids were detected in the aqueous extracts of T. patula and A. vasica whereas C. procera was found to have only alkaloids, flavonoids, tannins and saponins. Our data suggest that dried powders of T. patula, C. procera and A. vasica (40 g/kg of soil) could be used as an effective component in the integrated disease management programs against bacterial wilt of tomato.

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“…This variation in restricting disease development between IAS and their application time might be due to the fact difference in chemical compositions of the extracts, membrane permeability of the target pathogen, difference in efficacy and durability of extracts in the soil. This was supported by the work of Hassan et al (2009), who reported that soil drenching of some aqueous plant extracts variably and significantly reduced the disease severity of bacterial wilt, caused by R. solanacearum, on potato plants compared with inoculated control under both greenhouse and field conditions. In addition, as indicated by Pradhanang et al (2003), thymol, palmarosa and lemongrass oil as soil fumigants were suppressed bacterial wilt incidence of tomato caused by R. solanacearum in greenhouse pot experiments.…”

Section: Archives Of Phytopathology and Plant Protection 1359mentioning

confidence: 62%

“…Similar results were found by Pradhanang et al (2003) and Paret et al (2010), who reported that soil drenching with thymol, palmarosa and lemongrass oil suppressed R. solanacearum populations in soil and reduced bacterial wilt incidence at varying degrees in greenhouse pot experiments. Investigations on the mechanisms of disease suppression by plant products have suggested that the active principles present in plant extracts may either act on the pathogen directly or induce systemic resistance in host plants resulting in a reduction of disease development (Hassan et al 2009). …”

Section: Archives Of Phytopathology and Plant Protection 1359mentioning

confidence: 99%

Inhibitory effects of some invasive alien species leaf extracts against tomato (Lycopersicon esculentumMill.) bacterial wilt (Ralstonia solanacearum)

Alemu

Lemessa

Wakjira

et al. 2013

Archives Of Phytopathology And Plant Protection

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The inhibitory activity of selected invasive alien species leaf extracts against tomato bacterial wilt was studied in vitro and greenhouse. In vitro inhibitory activity was undertaken in a disc diffusion sensitivity test. Furthermore, aqueous extracts of Eichhorina crassipes, Mimosa diplotricha and Lantana camara and methanolic extract of Prosopis juliflora which showed better inhibitory effect in vitro were evaluated against R. solanacearum in greenhouse on tomato. The plant extracts were applied and evaluated at three different times of application (at the time of inoculation; two days before pathogen inoculation; and two days after pathogen inoculation). The result showed that most of the treatment combinations significantly reduce disease incidence and area under disease progress curve and increase biomass of tomato plants, but the effectiveness of tested plant species depends on the type of plant species and application time. The application of plant extracts at the time of pathogen inoculation resulted in highest reduction of disease development on tomato plants. Aqueous extract of E. crassipes was found to be the most effective plant extract in disease suppression and increase above-ground biomass compared to inoculated control. The study revealed that the tested plant species have a potential of inhibiting the development of bacterial wilt on tomato.

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Direct Antimicrobial Activity and Induction of Systemic Resistance in Potato Plants Against Bacterial Wilt Disease by Plant Extracts

Cited by 37 publications

References 28 publications

Companion cropping with wheat increases resistance to Fusarium wilt in watermelon and the roles of root exudates in watermelon root growth

Companion cropping with wheat increases resistance to Fusarium wilt in watermelon and the roles of root exudates in watermelon root growth

Phytobiocidal management of bacterial wilt of tomato caused by Ralstonia solanacearum (Smith) Yabuuchi

Inhibitory effects of some invasive alien species leaf extracts against tomato (Lycopersicon esculentumMill.) bacterial wilt (Ralstonia solanacearum)

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