The Experts below are selected from a list of 51 Experts worldwide ranked by ideXlab platform
A. Mandal - One of the best experts on this subject based on the ideXlab platform.
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Stimulatory effect of Phenylmercuric Acetate and benzene on the growth of a broad spectrum mercury-resistant strain of Bacillus pasteurii
Journal of Applied Bacteriology, 1993Co-Authors: Kalipada Pahan, S. Ray, R. Gachhui, J. Chaudhuri, A. MandalAbstract:A broad spectrumbroad spectrum mercury-resistant organism, Bacillus pasteurii DR 2 , was isolated from the effluents of Durgapur Steel Plant, India. In the presence of Phenylmercuric Acetate or benzene the rate of glucose uptake and the level of some metabolic enzymes increased significantly. Inhibition of the glucose oxidation rate by these chemicals in lysozyme-treated cells indicated that these compounds facilitated the transport of glucose across the cell wall and thereby stimulated growth
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A PMA degrading constitutive organomercurial lyase in a broad-spectrum mercury resistant Bacillus pasteurii strain DR2.
Indian journal of experimental biology, 1991Co-Authors: Kalipada Pahan, S. Ray, R. Gachhui, J. Chaudhuri, A. MandalAbstract:A broad-spectrum Hg-resistant strain of B. pasteurii DR2 utilized Phenylmercuric Acetate (PMA) as sole source of carbon. This bacterial strain contained a constitutive organomercurial lyase which specifically degraded PMA but not other organo-mercurials. This PMA-lyase activity was also stimulated to different extents when this bacterial strain was grown in presence of different organic compounds as sole source of carbon.
Colette Harf - One of the best experts on this subject based on the ideXlab platform.
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Symbiotic interactions between free-living amoeba and harboured mercury-resistant bacteria.
European journal of protistology, 1993Co-Authors: Catherine Hagneré, Colette HarfAbstract:Summary A co-culture of environmental Acanthamoeba sp. associated to Hg-sensitive, narrow or broad-spectrum Hg-resistant Aeromonas sp. strains was exposed to HgCl2 and Phenylmercuric Acetate. Amoebic growth depended on the Hg-resistance determinants of harboured bacteria. This laboratory model helped in understanding the mechanisms of Hg-resistance observed in amoeba isolated in river waters after a mercuric pollution. Amoeba acquired Hg-resistance by using symbiotic resistant bacteria.
Kalipada Pahan - One of the best experts on this subject based on the ideXlab platform.
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Stimulatory effect of Phenylmercuric Acetate and benzene on the growth of a broad spectrum mercury-resistant strain of Bacillus pasteurii
Journal of Applied Bacteriology, 1993Co-Authors: Kalipada Pahan, S. Ray, R. Gachhui, J. Chaudhuri, A. MandalAbstract:A broad spectrumbroad spectrum mercury-resistant organism, Bacillus pasteurii DR 2 , was isolated from the effluents of Durgapur Steel Plant, India. In the presence of Phenylmercuric Acetate or benzene the rate of glucose uptake and the level of some metabolic enzymes increased significantly. Inhibition of the glucose oxidation rate by these chemicals in lysozyme-treated cells indicated that these compounds facilitated the transport of glucose across the cell wall and thereby stimulated growth
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A PMA degrading constitutive organomercurial lyase in a broad-spectrum mercury resistant Bacillus pasteurii strain DR2.
Indian journal of experimental biology, 1991Co-Authors: Kalipada Pahan, S. Ray, R. Gachhui, J. Chaudhuri, A. MandalAbstract:A broad-spectrum Hg-resistant strain of B. pasteurii DR2 utilized Phenylmercuric Acetate (PMA) as sole source of carbon. This bacterial strain contained a constitutive organomercurial lyase which specifically degraded PMA but not other organo-mercurials. This PMA-lyase activity was also stimulated to different extents when this bacterial strain was grown in presence of different organic compounds as sole source of carbon.
Catherine Hagneré - One of the best experts on this subject based on the ideXlab platform.
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Symbiotic interactions between free-living amoeba and harboured mercury-resistant bacteria.
European journal of protistology, 1993Co-Authors: Catherine Hagneré, Colette HarfAbstract:Summary A co-culture of environmental Acanthamoeba sp. associated to Hg-sensitive, narrow or broad-spectrum Hg-resistant Aeromonas sp. strains was exposed to HgCl2 and Phenylmercuric Acetate. Amoebic growth depended on the Hg-resistance determinants of harboured bacteria. This laboratory model helped in understanding the mechanisms of Hg-resistance observed in amoeba isolated in river waters after a mercuric pollution. Amoeba acquired Hg-resistance by using symbiotic resistant bacteria.
Shengtao Sun - One of the best experts on this subject based on the ideXlab platform.
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In vitro activity of Phenylmercuric Acetate against ocular pathogenic fungi
The Journal of antimicrobial chemotherapy, 2012Co-Authors: Dongqing Zhao, Chuanwen Gao, Lutan Zhou, Guangren Pang, Shengtao SunAbstract:OBJECTIVES To determine the antifungal activity of Phenylmercuric Acetate against ocular pathogenic fungi in vitro and develop new antifungal eye drops to combat keratomycosis. METHODS The in vitro activity of Phenylmercuric Acetate was assessed against 261 isolates of ocular pathogenic fungi that included 136 Fusarium spp. isolates, 98 Aspergillus spp. isolates, 10 Alternaria alternata isolates and 17 other pathogens. The activity of Phenylmercuric Acetate was compared with the activities of amphotericin B and natamycin. In vitro susceptibility testing was performed by broth microdilution assay, in accordance with the CLSI (formerly NCCLS) M38-A guidelines for filamentous fungi. RESULTS MIC₉₀s of Phenylmercuric Acetate were 0.0156, 0.0156, 0.0156 and 0.0156 mg/L for Fusarium spp., Aspergillus spp., A. alternata and other pathogens, respectively. MIC₉₀s of amphotericin B were 2, 2, 1 and 1 mg/L for Fusarium spp., Aspergillus spp., A. alternata and other pathogens, respectively. MIC₉₀s of natamycin were 8, 32, 4 and 4 mg/L for Fusarium spp., Aspergillus spp., A. alternata and other pathogens, respectively. CONCLUSIONS Phenylmercuric Acetate has promising antifungal activity, which is significantly superior to the activities of amphotericin B and natamycin against a wide variety of ocular pathogenic fungi based on comparative MIC values. Additional evaluation is required to determine its clinical utility.