Deutsch
 
Benutzerhandbuch Datenschutzhinweis Impressum Kontakt
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

Measurement of exoenzymatic activity in streambed sediments using methylumbelliferyl-substrates

MPG-Autoren
/persons/resource/persons56815

Marxsen,  Jürgen
Limnological River Station Schlitz, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society;

/persons/resource/persons57008

Witzel,  Karl-Paul
Department Microbial Ecology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society;

Externe Ressourcen
Es sind keine Externen Ressourcen verfügbar
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Marxsen, J., & Witzel, K.-P. (1990). Measurement of exoenzymatic activity in streambed sediments using methylumbelliferyl-substrates. Archiv für Hydrobiologie/Ergebniss der Limnologie, 34, 21-28.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-CA27-A
Zusammenfassung
4-Methylumbelliferyl-substrates were used to measure the activity of extracellular β-D-glucosidase and phosphatase in small central European streams. The substrates could be used for stream water, sandy sediments, and coarser artificial substrata. Although β-D-glucosidase activity per unit surface area was about ten-times higher in coarse particulate sediments than in sandy sediments, maximum activity per unit volume was observed in sandy sediments. This means that for the stream as a whole, the greater proportion of the exoenzymatic cleavage activty occurs in the sandy streambed deposits.