2016-07-282016-07-282016-07-10ICES_2016_353http://hdl.handle.net/2346/67683JapanUniv. of TsukubaNational Museum of Emerging Science and InnovationMie University204ICES204: Bioregenerative Life SupportVienna, AustriaShunta Kimura, University of Tsukuba, JapanKaori Tomita-Yokotani, University of Tsukuba, JapanKotomi Inoue, University of Tsukuba, JapanSeigo Sato, University of Tsukuba, JapanMayumi Arai, National Museum of Emerging Science and Innovation, JapanHiroshi Katoh, Mie University, JapanThe 46th International Conference on Environmental Systems was held in Vienna, Austria, USA on 10 July 2016 through 14 July 2016.Terrestrial cyanobacteria can be utilized for material circulation as a bio-fertilizer for a manned Mars mission, because of their photosynthesis and nitrogen fixation abilities and drought tolerance. Dried colonies of a terrestrial cyanobacterium, Nostoc sp. HK-01, have high tolerances to vacuum, UV, γ-ray, heavy particle beams and dry heat (Kimura et al., 44th ICES, 2014). Nostoc sp. HK-01 would be able to survive under the space environment, and would be transported to Mars easily. Nostoc sp. HK-01 has several different type of cells in their life cycle. Akinete (dormant cell) is the cell type which has a tolerance to dry heat in Nostoc sp. HK-01 (Kimura et al., Biol. Sci. Space, 2015). Some active substance would be exist in the akinete. Here, we will show a candidate active substance related to dry heat tolerance in Nostoc sp. HK-01.application/pdfengAkineteCyanobacteriaHeat toleranceNostoc sp. HK-01Space AgriculturePresentation