[H-CG36] Systems of life in closed-ecology on planets

[HCG36-01] Utilization of a terrestrial cyanobacterium, {i}Nostoc{/i} sp. HK-01, in closed bio-ecosystems

*Shunta KIMURA¹, Yasuko KIMURA², Hiroshi KATOH³, Mayumi ARAI⁴, Seigo SATO¹, Kaori TOMITA-YOKOTANI¹ (1.University of Tsukuba, 2.University of Tsukuba and Jumonji University, 3.Mie University, 4.National Museum of Emerging Science and Innovation)

Keywords:closed bio-ecosystems, cyanobacteria, food resources, {i}Nostoc{/i} sp. HK-01

Cyanobacteria has been used as a traditional food resource in many parts of the world. Food production under severe conditions is important for life-support in closed bio-ecosystems.
A terrestrial cyanobacterium, Nostoc sp. HK-01 may be utilized for bio-chemical circulation in closed bio-ecosystems, including Mars. Nostoc sp. HK-01, has several ability; photosynthesis, nitrogen fixation and space environmental tolerance to drought, vacuum, heat, UV, gamma-ray and heavy particle beams. We propose the utilization of a terrestrial cyanobacterium, Nostoc sp. HK-01, as food in closed bio-ecosystems.
In this study, we verified the utilization of terrestrial cyanobacterium Nostoc sp. HK-01 as a food resource on Mars, and will discuss technology for recycling this strain as a food resource in a closed bio-ecosystem.