Alkaline phosphatase activity and utilization of dissolved organic phosphorus by algae in subtropical coastal waters
Alkaline phosphatase activity and utilization of dissolved organic phosphorus by algae in subtropical coastal waters
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DOI：
10.1016/s0025-326x(99)00006-5
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发表时间：
1999-01-01
影响因子：
5.8
通讯作者：
Hong, HS
中科院分区：
文献类型：
--
作者：
Huang, BQ;Hong, HS
测定了厦门湾和海藻批培养体系中海藻的碱性磷酸酶活性（APA）和溶解有机磷（DOP）有效性。结果表明：厦门湾的APA值随季节变化，夏季最高，秋季和春季最低；浮游藻类和细菌群落的自然种群测试表明，藻类主要对DOP进行利用，而细菌不吸收DOP化合物。藻类分批培养的结果也支持上述结论。APA与环境因子的关系表明，APA与磷酸盐、小分子DOP等磷水平呈负相关，在藻类对DOP的利用中起着重要作用。这些结果都强调了DOP在亚热带沿海水域的生态意义。1999爱思唯尔科学有限公司版权所有。
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.