Extracellular enzyme activity: Indications for high short-term variability in a coastal marine ecosystem

  title={Extracellular enzyme activity: Indications for high short-term variability in a coastal marine ecosystem},
  author={M. Kamer and Fereidoun Rassoulzadegan},
  journal={Microbial Ecology},
Extracellular α-glucosidase, β-glucosidase, and aminopeptidase activity variations (measured by use of fluorogenic substrate analogs) at a coastal station in the Mediterranean Sea were investigated over a 1-year period. A 27-h cycle and daily measurements were made in a summer situation. We observed strong relative diurnal variations, compared to seasonal variations, in α- and β-glucosidase. Within 24 h, 0–100% of both α- and β-glucosidase were found in the dissolved phase. The aminopeptidase… CONTINUE READING
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