Antimicrobial activity and induction of systemic resistance in rice by leaf extract of Datura metel against Rhizoctonia solani and Xanthomonas oryzae pv. oryzae

Kagale, Sateesh; Marimuthu, T.; Thayumanavan, B.; Nandakumar, R.; Samiyappan, R.

doi:10.1016/j.pmpp.2004.11.008

Cited by 197 publications

(158 citation statements)

References 33 publications

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“…In rice, R. solani and Xanthomonas oryzae pv. oryzae were significantly reduced by D. metel under glasshouse conditions (Kagale et al, 2004). Reduction on fungus development was also verified in vitro.…”

Section: Introductionmentioning

confidence: 58%

Cymbopogon citratus essential oil bioactivity and the induction of enzymes related to the pathogenesis of Alternaria solani on tomato plants

Itako

Júnior

Schwan-Estrada

2013

Idesia

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Cymbopogon citratus essential oil bioactivity and the induction of enzymes related to the pathogenesis ofAlternaria solani on tomato plants ABSTRACTThe objective of this work was to evaluate in vitro and in vivo the bioactivity of the essential oil of Cymbopogon citratus on the mycelial growth and sporulation of Alternaria solani, and also some biochemical and structural mechanisms of resistance induction on tomato plants. The plants were treated with essential oils at 0, 250, 500, 750, 1000 and 1500 μL L -1 72 hrs before the fungi inoculation. Foliar discs were collected at 0, 12, 24 and 48 h after the inoculation to verify the activity of peroxidase, polyphenol oxidase and β-1,3 glucanase. Spore germination, appressorium formation, and the mechanisms of structural resistance were evaluated 48 h after the inoculation. The in vitro responses showed direct toxic activities unlike the ones observed in vivo, where the essential oils had no fungitoxic effects on the fungi spores. In vitro, the peroxidase and polyphenol oxidase enhanced both local and systemic activities, unlike the β-1, 3-glucanase which enhanced only local activities at the highest concentrations. The essential oils of C. citratus have, therefore, potential to induce resistance in tomato plants.Key words: induced resistance, pathogenesis-related proteins, Solanum lycopersicon. RESUMEN El objetivo de este trabajo fue evaluar la bioactividad in vitro e in vivo del aceite esencial de

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Section: Introductionmentioning

confidence: 58%

Cymbopogon citratus essential oil bioactivity and the induction of enzymes related to the pathogenesis of Alternaria solani on tomato plants

Itako

Júnior

Schwan-Estrada

2013

Idesia

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“…The inhibitory effect of the tested plant extracts may be due to their direct toxic effect on the pathogen as reported by Vijayan (1989). 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 (Amadioha 2000) or induce systemic resistance in host plants resulting in a reduction of the disease development (Kagale et al 2004).…”

Section: Discussionmentioning

confidence: 99%

“…Recent efforts have focused on developing environmentally safe, long-lasting, and effective biocontrol methods for the management of plant diseases. Natural plant products are important sources of new agrochemicals for the control of plant diseases (Kagale et al 2004). Furthermore, biocides of plant origin are nonphytotoxic, systemic and easily biodegradable (Qasem & Abu-Blan1966).…”

mentioning

confidence: 99%

“…Wszelaki and Miller (2005) also reported that garlic extracts significantly reduced the early blight disease on tomato. Additionally, several plant extracts have shown the antimicrobial activity against fungal pathogens under in vitro and in vivo conditions (Kagale et al 2004). Therefore, our present study investigated the efficacy of various Egyptian plant leaf extracts from ocimum basilicum, Azadirachta indica, Eucalyptus chamadulonsis, Datura stramonium, Nerium oleander, and Allium sativum in the control of early blight of tomato under greenhouse and field conditions.…”

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confidence: 99%

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Evaluation of various plant extracts against the early blight disease of tomato plants under greenhouse and field conditions

Nashwa¹,

Abo-Elyousr²

2012

Plant Prot. Sci.

102

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The antimicrobial activity of six plant extracts from ocimum basilicum (Sweat Basil), Azadirachta indica (Neem), Eucalyptus chamadulonsis (Eucalyptus), Datura stramonium (Jimsonweed), Nerium oleander (Oleander), and Allium sativum (Garlic) was tested for controlling Alternaria solani in vitro and in vivo. In in vitro study the leaf extracts of D. stramonium, A. indica, and A. sativum at 5% concentration caused the highest reduction of mycelial growth of A. solani (44.4, 43.3 and 42.2%, respectively), while o. basilicum at 1% and 5% concentration and N. oleander at 5% concentration caused the lowest inhibition of mycelial growth of the pathogen. In greenhouse experiments the highest reduction of disease severity was achieved by the extracts of A. sativum at 5% concentration and D. stramonium at 1% and 5% concentration. The greatest reduction of disease severity was achieved by A. sativum at 5% concentration and the smallest reduction was obtained when tomato plants were treated with o. basilicum at 1% and 5% concentration (46.1 and 45.2 %, respectively). D. stramonium and A. sativum at 5% concentration increased the fruit yield by 76.2% and 66.7% compared to the infected control. All treatments with plant extracts significantly reduced the early blight disease as well as increased the yield of tomato compared to the infected control under field conditions.

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“…Induction of systemic acquired resistance (SAR) by the application of plant extracts has emerged as a potential alternative to the prevalent chemical pesticides used for crop disease management (Fu and Dong 2013). Foliar application of methanolic leaf extracts of metel (Datura metel L.) effectively reduced the incidence of sheath blight and bacterial blight diseases of rice grown in greenhouses (Kagale et al 2004). Application of an aqueous extract of zimmu (Allium sativum L. × Allium cepa L.) leaves on first and second leaves of cotton plants induced systemic resistance in the distal third and fourth leaves against Xanthomonas campestris pv.…”

Section: Introductionmentioning

confidence: 99%

Polyphenol oxidase and lysozyme mediate induction of systemic resistance in tomato, when a bioelicitor is used

Goel¹,

Paul²

2015

Journal of Plant Protection Research

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Tomato (Solanum lycopersicum L.) is attacked by Pseudomonas syringae pv. tomato causing heavy damage to the crops. The present study focused on the application of aqueous fruit extracts of neem (Azadirachta indica L.) on a single node of aseptically raised tomato plants. Observations were done, and the changes in the activity and isoenzyme profile of polyphenol oxidase (PPO) and lysozyme, both at the site of treatment as well as away from it, were noted. The results demonstrate that neem extract could significantly induce the activities of both the enzymes as well as upregulate the de novo expression of additional PPO isoenzymes. Induction of systemic acquired resistance (SAR) by natural plant extracts is a potent eco-friendly crop protection method.

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Antimicrobial activity and induction of systemic resistance in rice by leaf extract of Datura metel against Rhizoctonia solani and Xanthomonas oryzae pv. oryzae

Cited by 197 publications

References 33 publications

Cymbopogon citratus essential oil bioactivity and the induction of enzymes related to the pathogenesis of Alternaria solani on tomato plants

Cymbopogon citratus essential oil bioactivity and the induction of enzymes related to the pathogenesis of Alternaria solani on tomato plants

Evaluation of various plant extracts against the early blight disease of tomato plants under greenhouse and field conditions

Polyphenol oxidase and lysozyme mediate induction of systemic resistance in tomato, when a bioelicitor is used

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