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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo

Volume 29, Issue 4

Rapid Test for Determining the Intracellullar Rhodanese Activity of Various Bacteria Free

Abstract

A simple, reproducible technique with potential taxonomic application was developed for the rapid detection of rhodanese activity in gram-negative and gram-positive bacteria. The method requires suspension of the growth from three colonies in a solution of lysozyme and ethylenediaminetetraacetic acid for 60 min. After cell lysis, the presence of rhodanese activity is determined colorimetrically by measuring the amount of thiocyanate formed from thiosulfate and potassium cyanide by use of ferric nitrate. By this technique, a survey of 411 bacterial strains revealed the presence of rhodanese in all test strains of , and . No activity was detected in , or species. Randomly selected strains which did not exhibit rhodanese activity were confirmed to be rhodanese-negative by assay of mechanically disrupted cells harvested from 500 ml of growth medium.

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© Society for General Microbiology, 1979
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1979-10-01
2024-04-28
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Rapid Test for Determining the Intracellullar Rhodanese Activity of Various Bacteria
Int J Syst Evol Microbiol 29, 339 (1979); https://doi.org/10.1099/00207713-29-4-339
/content/journal/ijsem/10.1099/00207713-29-4-339
/content/journal/ijsem/10.1099/00207713-29-4-339
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