The Experts below are selected from a list of 201 Experts worldwide ranked by ideXlab platform
S C Tripathi - One of the best experts on this subject based on the ideXlab platform.
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Fungitoxic activity of solanum torvum against fusarium sacchari
Plant protection science, 2018Co-Authors: S K Gupta, S C TripathiAbstract:Gupta S.K., Tripathi S.C. (2011): Fungitoxic activity of Solanum torvum against Fusarium sacchari . Plant Protect. Sci., 47: 83–91. The leaf extract of Solanum torvum Sw. (Solanaceae) was evaluated for its Fungitoxic activity against Fusarium sacchari (E.J. Butler & Hafiz Khan) W. Gams (1971). The leaf extract was found to inhibit completely the myc elial growth of the test fungus at minimum 0.5 ml/ml dose by the poisoned food technique. The nature of the extract was fungicidal at 0.5 ml/ml dose, since no further revival of growth was observed in inoculated plates even after incubation for 6 days after inoculation. The extract required minimally 5 min to kill the test fungus at its MIC. The extract also inhibited the growth of 12 other pathogenic fungi as well as 2 pathogenic strains of bacteria under test. It was found to be non-phytotoxic in nature and to show antifungal activity under in vivo
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Fungitoxic activity of Solanum torvum against Fusarium sacchari
Plant Protection Science, 2011Co-Authors: S K Gupta, S C TripathiAbstract:The leaf extract of Solanum torvum Sw. (Solanaceae) was evaluated for its Fungitoxic activity against Fusarium sacchari (E.J. Butler & Hafiz Khan) W. Gams (1971). The leaf extract was found to inhibit completely the mycelial growth of the test fungus at minimum 0.5 ml/ml dose by the poisoned food technique. The nature of the extract was fungicidal at 0.5 ml/ml dose, since no further revival of growth was observed in inoculated plates even after incubation for 6 days after inoculation. The extract required minimally 5 min to kill the test fungus at its MIC. The extract also inhibited the growth of 12 other pathogenic fungi as well as 2 pathogenic strains of bacteria under test. It was found to be non-phytotoxic in nature and to show antifungal activity under in vivo conditions.
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Fungitoxic properties of the essential oil of trachyspermum ammi sprague fungitoxische eigenschaften des atherischen ols von trachyspermum ammi sprague
Mycoses, 2009Co-Authors: S. P. Singh, P Dubey, S C TripathiAbstract:Summary: The essential oil of fruits of Trachyspermum ammi exhibited Fungitoxicity against Epidermophyton floccosum Microsporum canis and Trichophyton mentagrophytes at 900 ppm concentration. The Fungitoxicity of the oil was not affected by temperature treatment up to 150°C, autoclaving and storage up to 240 days. On chemical investigation, thymol was isolated as Fungitoxic factor and it exhibited toxicity against the test fungi at 1000 ppm concentration. Zusammenfassung: Das atherische Ol der Fruchte von Trachyspermum ammi zeigte fungitoxische Wirkung gegen Epidermophyton floccosum, Microsporum canis und Trichophyton mentagrophytes bei einer Konzentration von 900 ppm. Temperaturen bis 150°C, Autoklavieren und Lagerung uber 240 Tage beeinflusten die Fungitoxizitat des Oles nicht Bei chemischen Untersuchungen wurde Thymol als fungitoxischer Faktor isoliert, das die Testpilze bei einer Konzentration von 1000 ppm hemmte.
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Fungitoxic Properties of the Essential Oil of Trachyspermum ammi Sprague/Fungitoxische Eigenschaften des ätherischen Öls von Trachyspermum ammi Sprague
Mycoses, 2009Co-Authors: S. P. Singh, P Dubey, S C TripathiAbstract:Summary: The essential oil of fruits of Trachyspermum ammi exhibited Fungitoxicity against Epidermophyton floccosum Microsporum canis and Trichophyton mentagrophytes at 900 ppm concentration. The Fungitoxicity of the oil was not affected by temperature treatment up to 150°C, autoclaving and storage up to 240 days. On chemical investigation, thymol was isolated as Fungitoxic factor and it exhibited toxicity against the test fungi at 1000 ppm concentration. Zusammenfassung: Das atherische Ol der Fruchte von Trachyspermum ammi zeigte fungitoxische Wirkung gegen Epidermophyton floccosum, Microsporum canis und Trichophyton mentagrophytes bei einer Konzentration von 900 ppm. Temperaturen bis 150°C, Autoklavieren und Lagerung uber 240 Tage beeinflusten die Fungitoxizitat des Oles nicht Bei chemischen Untersuchungen wurde Thymol als fungitoxischer Faktor isoliert, das die Testpilze bei einer Konzentration von 1000 ppm hemmte.
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the Fungitoxic effect of the essential oil of the herb nardostachys jatamansi dc
Tropical Agriculture, 1995Co-Authors: Dhirendra Mishra, R V Chaturvedi, S C TripathiAbstract:Nineteen essential oils were screened for their toxicity against Aspergillus flavus, Aspergillus niger, and Fusarium oxysporum. The oil of Nardostachys jatamansi DC completely inhibited mycelial growth of all the test fungi at a concentration of 1.0 × 10 3 μL/L. The toxicity was fungistatic. The Fungitoxic effect of the oil remained unaffected by heavy inoculum, temperature treatment, and storage. In addition to the test fungus, the oil at concentrations of 1.0 × 10 3 μL/L and 1.2 × 10 3 μL/L inhibited the growth of six and nine other fungi, respectively, and did not adversely affect seed germination and seedling growth of Cicer arietinum and Cajanus cajan
S. P. Singh - One of the best experts on this subject based on the ideXlab platform.
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Fungitoxic properties of the essential oil of trachyspermum ammi sprague fungitoxische eigenschaften des atherischen ols von trachyspermum ammi sprague
Mycoses, 2009Co-Authors: S. P. Singh, P Dubey, S C TripathiAbstract:Summary: The essential oil of fruits of Trachyspermum ammi exhibited Fungitoxicity against Epidermophyton floccosum Microsporum canis and Trichophyton mentagrophytes at 900 ppm concentration. The Fungitoxicity of the oil was not affected by temperature treatment up to 150°C, autoclaving and storage up to 240 days. On chemical investigation, thymol was isolated as Fungitoxic factor and it exhibited toxicity against the test fungi at 1000 ppm concentration. Zusammenfassung: Das atherische Ol der Fruchte von Trachyspermum ammi zeigte fungitoxische Wirkung gegen Epidermophyton floccosum, Microsporum canis und Trichophyton mentagrophytes bei einer Konzentration von 900 ppm. Temperaturen bis 150°C, Autoklavieren und Lagerung uber 240 Tage beeinflusten die Fungitoxizitat des Oles nicht Bei chemischen Untersuchungen wurde Thymol als fungitoxischer Faktor isoliert, das die Testpilze bei einer Konzentration von 1000 ppm hemmte.
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Fungitoxic Properties of the Essential Oil of Trachyspermum ammi Sprague/Fungitoxische Eigenschaften des ätherischen Öls von Trachyspermum ammi Sprague
Mycoses, 2009Co-Authors: S. P. Singh, P Dubey, S C TripathiAbstract:Summary: The essential oil of fruits of Trachyspermum ammi exhibited Fungitoxicity against Epidermophyton floccosum Microsporum canis and Trichophyton mentagrophytes at 900 ppm concentration. The Fungitoxicity of the oil was not affected by temperature treatment up to 150°C, autoclaving and storage up to 240 days. On chemical investigation, thymol was isolated as Fungitoxic factor and it exhibited toxicity against the test fungi at 1000 ppm concentration. Zusammenfassung: Das atherische Ol der Fruchte von Trachyspermum ammi zeigte fungitoxische Wirkung gegen Epidermophyton floccosum, Microsporum canis und Trichophyton mentagrophytes bei einer Konzentration von 900 ppm. Temperaturen bis 150°C, Autoklavieren und Lagerung uber 240 Tage beeinflusten die Fungitoxizitat des Oles nicht Bei chemischen Untersuchungen wurde Thymol als fungitoxischer Faktor isoliert, das die Testpilze bei einer Konzentration von 1000 ppm hemmte.
P Dubey - One of the best experts on this subject based on the ideXlab platform.
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Fungitoxic properties of the essential oil of trachyspermum ammi sprague fungitoxische eigenschaften des atherischen ols von trachyspermum ammi sprague
Mycoses, 2009Co-Authors: S. P. Singh, P Dubey, S C TripathiAbstract:Summary: The essential oil of fruits of Trachyspermum ammi exhibited Fungitoxicity against Epidermophyton floccosum Microsporum canis and Trichophyton mentagrophytes at 900 ppm concentration. The Fungitoxicity of the oil was not affected by temperature treatment up to 150°C, autoclaving and storage up to 240 days. On chemical investigation, thymol was isolated as Fungitoxic factor and it exhibited toxicity against the test fungi at 1000 ppm concentration. Zusammenfassung: Das atherische Ol der Fruchte von Trachyspermum ammi zeigte fungitoxische Wirkung gegen Epidermophyton floccosum, Microsporum canis und Trichophyton mentagrophytes bei einer Konzentration von 900 ppm. Temperaturen bis 150°C, Autoklavieren und Lagerung uber 240 Tage beeinflusten die Fungitoxizitat des Oles nicht Bei chemischen Untersuchungen wurde Thymol als fungitoxischer Faktor isoliert, das die Testpilze bei einer Konzentration von 1000 ppm hemmte.
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Fungitoxic Properties of the Essential Oil of Trachyspermum ammi Sprague/Fungitoxische Eigenschaften des ätherischen Öls von Trachyspermum ammi Sprague
Mycoses, 2009Co-Authors: S. P. Singh, P Dubey, S C TripathiAbstract:Summary: The essential oil of fruits of Trachyspermum ammi exhibited Fungitoxicity against Epidermophyton floccosum Microsporum canis and Trichophyton mentagrophytes at 900 ppm concentration. The Fungitoxicity of the oil was not affected by temperature treatment up to 150°C, autoclaving and storage up to 240 days. On chemical investigation, thymol was isolated as Fungitoxic factor and it exhibited toxicity against the test fungi at 1000 ppm concentration. Zusammenfassung: Das atherische Ol der Fruchte von Trachyspermum ammi zeigte fungitoxische Wirkung gegen Epidermophyton floccosum, Microsporum canis und Trichophyton mentagrophytes bei einer Konzentration von 900 ppm. Temperaturen bis 150°C, Autoklavieren und Lagerung uber 240 Tage beeinflusten die Fungitoxizitat des Oles nicht Bei chemischen Untersuchungen wurde Thymol als fungitoxischer Faktor isoliert, das die Testpilze bei einer Konzentration von 1000 ppm hemmte.
Pushpa S Murthy - One of the best experts on this subject based on the ideXlab platform.
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in vitro antifungal activity of dehydrozingerone and its Fungitoxic properties
Journal of Food Science, 2013Co-Authors: Rahath I Kubra, Pushpa S MurthyAbstract:UNLABELLED: The efficacy of Dehydrozingerone (DZ; dehydroderivative of zingerone) as an antifungal agent and its mode of action against food spoilage fungal pathogens was studied and presented. DZ is a constituent of ginger (Zingiber officinale rhizomes) and structural half analogue of curcumin. Its efficacy against Aspergillus oryzae, Aspergillus flavus, Aspergillus niger, Aspergillus ochraceus, Fusarium oxysporum and Penicillium chrysogenum was evaluated. Effect of DZ on the growth and sporulation of A. ochraceus was also studied. The fungal species were susceptible to DZ and the minimum inhibitory concentration and fungicidal concentration ranged from 755 to 911 μM and 880 to 1041 μM respectively. The mycelial and spore germination was significantly inhibited; reduction in the weight of the cell mass, carbohydrate, protein, DNA and RNA constituents in the cells isolated from cultures of A. ochraceus grown with DZ were observed. Scanning electron microscopy studies revealed morphological observations such as cell lysis, inhibition and morphological alterations in hyphae and sporulation in A. ochraceus on treatment with DZ. PRACTICAL APPLICATION: Current investigations revealed that DZ is a potential antifungal agent and can find application as an additive or adjuvant in food and pharmaceutical industries after appropriate toxicological studies.
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Fungitoxic activity of indian borage plectranthus amboinicus volatiles
Food Chemistry, 2009Co-Authors: Pushpa S Murthy, Kulathooran Ramalakshmi, P SrinivasAbstract:Abstract Indian borage ( Plectranthus amboinicus ) was investigated for antifungal activity through agar well diffusion assay. Indian borage oil (IBO) was found to be effective against various fungi tested, as it inhibited the radial growth of mycelia and exhibited broad Fungitoxic properties against Aspergillus flavus , Aspergillus niger , Aspergillus ochraceus CFR 221, Aspergillus oryzae , Candida versatilis , Fusarium sp. GF-1019, Penicillium sp., and Saccharomyces cerevisiae . The effective concentration of IBO on the growth of A. ochraceus in yeast extract sucrose medium was determined. IBO completely inhibited ochratoxin (OTA) production by the toxigenic strain A. ochraceus at 500 ppm. Also, the application of IBO at 100 mg/g in food samples resulted in inhibition of the growth of A. ochraceus in food systems such as groundnut, maize and poultry feed and no detectable amount of OTA was found at a high moisture level of 30%, even after seven days. IBO has the potential for use as a botanical Fungitoxicant against fungal attack in stored food commodities.
Antonio Rossi - One of the best experts on this subject based on the ideXlab platform.
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A Single Amino Acid Substitution in One of the Lipases of Aspergillus nidulans Confers Resistance to the Antimycotic Drug Undecanoic Acid
Biochemical Genetics, 2008Co-Authors: Ana G. Brito-madurro, Nalu T A Peres, Rolf A. Prade, João M. Madurro, Mário A. Santos, Jeny R. Cursino-santos, Nilce M. Martinez-rossi, Antonio RossiAbstract:A plausible approach to evaluate the inhibitory action of antifungals is through the investigation of the fungal resistance to these drugs. We describe here the molecular cloning and initial characterization of the A. nidulans lipA gene, where mutation ( lipA1 ) conferred resistance to undecanoic acid, the most Fungitoxic fatty acid in the C_7:0–C_18:0 series. The lipA gene codes for a putative lipase with the sequence consensus GVSIS and WIFGGG as the catalytic signature. Comparison of the wild-type and LIP1 mutant strain nucleotide sequences showed a G → A change in lipA1 allele, which results in a Glu^214 → Lys substitution in LipA protein. This ionic charge change in a conserved LipA region, next to its catalytic site, may have altered the catalytic properties of this enzyme resulting in resistance to undecanoic acid.
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a single amino acid substitution in one of the lipases of aspergillus nidulans confers resistance to the antimycotic drug undecanoic acid
Biochemical Genetics, 2008Co-Authors: Ana G Britomadurro, Nalu T A Peres, Jeny R Cursinosantos, Nilce Maria Martinezrossi, Rolf A. Prade, João M. Madurro, Mário A. Santos, Antonio RossiAbstract:A plausible approach to evaluate the inhibitory action of antifungals is through the investigation of the fungal resistance to these drugs. We describe here the molecular cloning and initial characterization of the A. nidulans lipA gene, where mutation (lipA1) conferred resistance to undecanoic acid, the most Fungitoxic fatty acid in the C7:0–C18:0 series. The lipA gene codes for a putative lipase with the sequence consensus GVSIS and WIFGGG as the catalytic signature. Comparison of the wild-type and LIP1 mutant strain nucleotide sequences showed a G → A change in lipA1 allele, which results in a Glu214 → Lys substitution in LipA protein. This ionic charge change in a conserved LipA region, next to its catalytic site, may have altered the catalytic properties of this enzyme resulting in resistance to undecanoic acid.
