Science. 1979 May 11;204(4393):620-2. doi: 10.1126/science.204.4393.620.
Both laboratory and in situ studies indicate that the nitrogen-fixing blue-green nuisance algae Anabaena spp. have developed adaptive means of dominating surface lake waters. During the dramatic diurnal shifts in surface light intensity and oxygen saturation accompanying blooms, Anabaena can overcome oxygen toxicity by sequential optimization of carbon dioxide and nitrogen fixation and by pigment alteration. These mechanisms allow optimal utilization of the radiant energy while minimizing competition for photoreductant between two main energy-demanding processes.
实验室和现场研究均表明，固氮蓝藻鱼腥藻属已发展出适应手段来主导表层湖水。在伴随着水华的剧烈日变化的表层光照强度和氧气饱和度下，鱼腥藻可以通过二氧化碳和氮固定的顺序优化以及色素改变来克服氧气毒性。这些机制允许在最小化两种主要耗能过程之间对光还原剂竞争的情况下，对辐射能进行最佳利用。
