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The influence of selected water quality parameters on the decay rate and exoenzymatic activity of detritus of Nymphaea alba L. floating leaf blades in laboratory experiments

The influence of selected water quality parameters on the decay rate and exoenzymatic activity of... A chemostat study was conducted to investigate the influence of water quality parameters related to acidification processes on the decomposition of floating leaves of Nymphaea alba L. HCO inf3 sup− and total Al concentration and pH influenced the decay rate. The activity of four cell-wall decaying exoenzymes was measured in the detritus. The activity of two types of pectic enzyme and xylanase was low under acid conditions. Cellulase activity was little affected. The exoenzyme activity seemed to be influenced by the pH of the water within the detritus. Inhibition of pectic enzymes under acid conditions may be an important factor causing the slow decay of macrophyte remains in acid waters. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Oecologia Springer Journals

The influence of selected water quality parameters on the decay rate and exoenzymatic activity of detritus of Nymphaea alba L. floating leaf blades in laboratory experiments

Oecologia , Volume 88 (3) – Nov 1, 1991

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References (38)

Publisher
Springer Journals
Copyright
Copyright © 1991 by Springer-Verlag
Subject
Life Sciences; Ecology; Plant Sciences
ISSN
0029-8549
eISSN
1432-1939
DOI
10.1007/BF00317572
Publisher site
See Article on Publisher Site

Abstract

A chemostat study was conducted to investigate the influence of water quality parameters related to acidification processes on the decomposition of floating leaves of Nymphaea alba L. HCO inf3 sup− and total Al concentration and pH influenced the decay rate. The activity of four cell-wall decaying exoenzymes was measured in the detritus. The activity of two types of pectic enzyme and xylanase was low under acid conditions. Cellulase activity was little affected. The exoenzyme activity seemed to be influenced by the pH of the water within the detritus. Inhibition of pectic enzymes under acid conditions may be an important factor causing the slow decay of macrophyte remains in acid waters.

Journal

OecologiaSpringer Journals

Published: Nov 1, 1991

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