Alkaline phosphatase activity and utilization of dissolved organic phosphorus by algae in subtropical coastal waters

被引：57
作者：
Huang, BQ [1 ]
Hong, HS [1 ]
机构：
[1] Xiamen Univ, Res Lab SEDC, Marine Ecol Environm Environm Sci Res Ctr, Fujian 361005, Peoples R China
来源：
MARINE POLLUTION BULLETIN | 1999年 / 39卷 / 1-12期
关键词：
alkaline phosphatase activity; dissolved organic phosphorus; utilization; algae; bacteria; subtropical coastal waters; Xiamen Bay;
D O I：
10.1016/S0025-326X(99)00006-5
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Alkaline phosphatase activity (APA) and the availability of dissolved organic phosphorus (DOP) to marine algae were determined in Xiamen Bay and in algal batch culture systems. Results showed that APA changed with seasons, increasing to the highest value in summer and decreasing to the lowest in autumn and spring in Xiamen Bay. Tests on natural populations of planktonic algae and bacteria community showed that algae were mostly responsible for DOP utilization, while bacteria could not take up DOP compounds. Results from algal batch cultures also supported the above conclusion. Relationships between APA and environmental factors indicated that APA was negatively correlated with phosphorus level such as phosphate and small molecular DOP, and APA played an important role in utilization of DOP by algae. All the results emphasized the ecological significance of DOP in subtropical coastal waters. (C) 1999 Elsevier Science Ltd. All rights reserved.
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页码：205 / 211
页数：7
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