• Title/Summary/Keyword: toxica

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Tracing some enzymatic activities in three virulent pathogenic erwiniae

  • Saleh, Youssry E.
    • Archives of Pharmacal Research
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    • v.13 no.1
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    • pp.105-107
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    • 1990
  • The absence, in the biomass, of glutamic-oxalacetic and glutamic-pyruvic transaminases and the prevalance of gamma-glutamic transpeptidase were taken as basic criteria to differentiate between Erwinia carotovora var. carorovora from E. carotovora var, citrullis and E. toxica. For further identification, detection of cholesterol in the biomass confirmed the toxica species whereas the absence of glucose confirmed the citrullis variety.

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Activity of Some Intracellular Enzymes of Three Virulent Erwinia sp. in Presence of Some Heavy Metal Salts

  • Saleh, Youssry-E.;Naguib, Mohamed-I.;Shehata, Nabil-E.
    • Archives of Pharmacal Research
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    • v.13 no.4
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    • pp.298-305
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    • 1990
  • Based on equal number of cells, supplementation of 10$^{-6}$ M cadimium highly simulated the intracellular amylase. GCT, LDH as well as the glucose and erea content of E carotovora var, carotovaro cells. This was coupled with initiation of highly active GOT, CPK as well as accumulation of cholesterol in the cells. Lanthanum was less active and unable to initiate COT or CPK. Nickel was almost without effect though reduced LDH activity without initiating either enzyme or cholesterol production. Similar stiulations and/or initiations were observed, though to variable extents, when the same concentration of the three elements were supplied to E. carotovora var, citullis or E. toxica. The highest yield of amylase, GPT, GGT or glucose was obtained when E. carotovora var. carotovora was supplemented with Cd + Ni. The highest urea level was recorded in Erwinia carotovara var, cirullis, amended with Cd + La.

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