Kok C J, Van der Velde G
Laboratory of Aquatic Ecology, Catholic University Nijmegen, Toernooiveld, 6525 ED, Nijmegen, The Netherlands.
Oecologia. 1991 Nov;88(3):311-316. doi: 10.1007/BF00317572.
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 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.
进行了一项恒化器研究，以调查与酸化过程相关的水质参数对白睡莲漂浮叶片分解的影响。碳酸氢根、总铝浓度和pH值影响了腐烂速率。在碎屑中测量了四种细胞壁分解外切酶的活性。在酸性条件下，两种果胶酶和木聚糖酶的活性较低。纤维素酶活性受影响较小。外切酶活性似乎受碎屑内水体pH值的影响。酸性条件下果胶酶的抑制作用可能是导致酸性水体中大型植物残体腐烂缓慢的一个重要因素。
