Factors affecting alkaline phosphatase activity in natural water

本研究旨在揭示环境因子和微生物关系对天然水体中碱性磷酸酶活性的影响.自2002年以来，继续在位于奈良柏的Hataokami和Hataoshimo蓄水池进行碱性磷酸酶活性、水质和微生物因子的月度调查。研究了碱性磷酸酶活性的变化规律，以及水质和微生物参数的变化.通过对细菌的长期培养，研究了影响细菌产碱性磷酸酶的因素。结果表明，无光区细菌产碱性磷酸酶的波动与细菌的可培养性无关.收集了有关碱性磷酸酶、河流和湖泊中磷酸盐吸收和积累的参考资料。

This study was conducted to reveal the effect of environmental factors and microbial relationships on alkaline phosphate activity in natural water.1. Monthly survey on alkaline phosphatase activity, water quality and microbial factors, which had been conducted at Hataokami and Hataoshimo Impoundments located in Kashiba, Nara since 2002, was continued. The fluctuation of alkaline phosphatase activity, as well as water quality and microbial parameters was studied.2. Long-term culture of bacteria was performed to investigate the factor affecting alkaline phosphatase production by bacteria. The result has shown that viable but not culturable state of bacteria is not responsible for the fluctuation of alkaline phosphatase production by bacteria in the aphotic zone.3. Reference materials on alkaline phosphatase, phosphate absorption and accumulation in rivers and lakes were collected.