[H-CG28] Circulation of materials in closed bio-ecosystems by the systems of organisms.

[HCG28-03] Utilization of the terrestrial cyanobacterial sheet

*Hiroshi Katoh¹, Shunta Kimura², Jun Furukawa², Kaori Tomita-Yokotani², Yuji Yamaguchi³, Hiroyuki Takenaka³, Nobuyuki Kohno⁴ (1.Mie University, 2.University of Tsukuba, 3.MicroAlgae Corporation, 4.Takino Filter Incorporated)

Keywords:desiccation, cyanobacteria, bioremediation, agriculture, space, terrestrial

The terrestrial nitrogen-fixing cyanobacterium, Nostoc commune, is living ranging from polar to desert. N. commune makes visible colonies composed extracellular polymeric substances. N. commune has expected to utilize for agriculture, food and terraforming cause of its extracellular polysaccharide, desiccation tolerance and nitrogen fixation. To exhibit the potential abilities, the N. commune sheet is made to use convenient and evaluated by plant growth and radioactive accumulation. We will discuss utilization of terrestrial cyanobacteria under closed environment.