PMID: 2484561Dec 1, 1988Paper

Selenium metabolism in a strain of Fusarium

Biological Trace Element Research
S E RamadanN M Sedky

Abstract

Fusarium sp. was isolated from Sinai soil at Egypt. It showed tendency to tolerate high concentrations of selenium in the form of sodium selenite up to 3.5% (w/v). The microscopic examination revealed some morphological distortions. However, the fungus was capable to circumvent the toxic effect of selenium. The fungus possess strong reducing ability as high quantities of elemental selenium were precipitated within the fungal cells as well as on the surface of the fungal hyphae and spores. The presence of selenium increased the cellular contents of carbohydrates, proteins, and lipids. Labeling studies indicate the incorporation of selenite into certain amino acids: selenocysteine and selenocysteic acid. Moreover, the presence of selenium induced the biosynthesis of several types of low molecular weight proteins. The results demonstrated different modes of detoxification of selenium toxicity.

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Citations

Jun 26, 2001·American Journal of Physical Anthropology·J Sen, A B Das Chaudhuri
Jun 1, 1990·Biological Trace Element Research·A A RazakK el-Zawahry
Jun 1, 1990·Biological Trace Element Research·A A RazakK el-Zawahry
Mar 1, 1991·Biological Trace Element Research·I M Abbass, A A Razak
Oct 25, 2014·Applied Microbiology and Biotechnology·Erika J Espinosa-OrtizPiet N L Lens
Jan 11, 2003·Natural Product Reports·Marc BirringerLeopold Flohé
Mar 4, 2011·Environmental Science & Technology·Kathrin SchillingWolfgang Wilcke

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