Abstract
Nitrogen metabolism is the key metabolism in plants, because it directly regulates the growth. Responding to environmental changes, plants strictly regulate the nitrogen metabolism by the network that is consists of nucleus, mitochondrion and plastid. A unicellular alga, C. merolae is our favorite model organism for the investigation of nitrogen metabolism in plants. In addition to a unicellular alga, the information of organella and nuclear genome is useful. However, The method for the cultivation was not enough to elucidate the advantege of this plant material. Then, we established the new method for cultivation. As the result, the growth rate in C. merolae was as fast as a unicellular alga, Chlamydomonas which is a good model system for plant metabolism. In the meeting, we will report the new method for the cultivation and physiological aspects of the adaptation to the nitrogen depression in C. merolae.
