CO_2 fixation system using microalgae under aerial conditions

有些微藻甚至可以在固体表面进行光合作用。我建造了一个带式输送系统，用带上的微藻从大气中固定co2。小球藻、衣藻、卟啉藻、螺旋藻和胞囊藻在玻璃纤维滤膜上仍有活性。虽然这个系统是半自动的，但由于干燥的风，藻类细胞在室外很快就干了。因此，我仍然在寻找一种合适的透明薄膜，它可以覆盖在皮带上的藻类上。如果CO_2和O_2分子可以转移，而H_2O分子不能转移，则薄膜的质量会更好。利用实时测定光合速率的红外气体分析系统对膜上微藻进行了分析。光照后，螺旋藻的光合速率达到固定水平需要15 min以上，而小球藻则非常快。研究还发现类囊体膜中的酸性脂质对光系统II蛋白复合物的维持起着重要作用。

Some of microalgae can proceed photosynthesis even on a solid surface. I constructed a belt conveyor system with which microalgae on the belt fix CO_2 from atmosphere. Chlorella, Chlamydomonas, Porphyridium, Spirulina, and Synechocystis were still active even on a membrane of glass-fiber filter. Though the system worked semi-automatically, the algal cells dried soon outdoors due to dried wind. Thus I am still looking for an appropriate transparent film which would be laid over the algae on the belt. The film should be better if molecules of CO_2 and O_2 can be transferable, but not H_2O.Infrared gas analysing system with which rate of photosynthesis is determined at real time was applied to the microalgae on the membrane. It took over 15 min in Spirulina till the rate of photosynthesis reached the stationary level after illumination, while it was very soon in Chlorella. It is also found that acid lipids in thylakoid membranes play a role of maintenance of photosystem II protein complex.