Nutrient-limited growth of Microcystis aeruginosa and Phormidium tenue and competition under various N:P supply ratios and temperatures
Nutrient-limited growth of Microcystis aeruginosa and Phormidium tenue and competition under various N:P supply ratios and temperatures
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DOI：
10.4319/lo.1997.42.2.0250
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发表时间：
1997-03-01
影响因子：
4.5
通讯作者：
Inamori, Y
中科院分区：
文献类型：
--
作者：
Fujimoto, N;Sudo, R;Inamori, Y
以铜绿微囊藻（Microcystis aeruginosa）和纤细席藻（Phormidium tenue）为研究对象，在不同氮磷供给比和温度条件下，进行营养限制连续培养和混合连续培养。Droop模型准确地描述了这两种藻类的生长。这两种藻类对磷和氮的竞争能力存在明显差异。在竞争实验中，M.在低N：P供应比和高温条件下，铜绿微囊藻是上级竞争者，而在高N：P供应比和低温条件下，细磷微囊藻是上级竞争者，这与霞浦湖藻类群落的野外观察相一致。实验室和野外观测结果表明，N：P供给比和温度是影响M相对丰度的重要环境因子。铜绿假单胞菌和纤细假单胞菌。
The blue-green algae Microcystis aeruginosa and Phormidium tenue were grown in nutrient-limited continuous cultures and together in mixed continuous cultures under various N:P supply ratios and temperatures. The Droop model accurately described the growth of these two algae. Competitive abilities for P and N distinctively differed among these two algae. In competition experiments, M. aeruginosa was the superior competitor under conditions of low N:P supply ratio and high temperature, whereas P, tenue was superior under conditions of high N:P supply ratio and low temperature, which corresponded to field observations of the algal community in Lake Kasumigaura. Both laboratory and field observations suggest that the N:P supply ratio and temperature are significant environmental factors affecting the relative abundances of M. aeruginosa and P. tenue.