ISSN:
1432-2048
Keywords:
Regulation
;
Hydrogen sulfide
;
Sulfate reduction
;
Adenosine-5′-phosphosulfate
;
APS-sulfotransferase
;
Lemna minor
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract When Lemna minor L. is transferred to an atmosphere with H2S, there is a rapid loss of extractable adenosine-5′-phosphosulfate sulfotransferase activity. The activity is restored within 24 h in an atmosphere without H2S. This restoration of activity is completely inhibited by cycloheximid but not by chloramphenicol. In vitro, S2- up to 5 mM and cysteine, methionine, and glutathione up to 50 mM do not inhibit the enzyme. The activities of ATP sulfurylase and O-acetyl-L-serine sulfhydrylase are not affected significantly by H2S. The physiological significance of the regulation of adenosine-5′-phosphosulfate sulfotransferase is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00386010
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