Exposure of cyanobacterium Nostoc sp. to the Mars-like stratosphere environment

doi:10.1016/j.jphotobiol.2021.112307

	Exposure of cyanobacterium Nostoc sp. to the Mars-like stratosphere environment
	Ye, Tong 1,3; Wang, Bo 1,3; Li, Caiyan 1,3; Bian, Po 2; Chen, Lanzhou 4; Wang, Gaohong 1,3
刊名	JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
	2021-11-01
卷号	224
关键词	Cyanobacterium Stratosphere environment Survival RNA-sequencing Mars-like environment Colonization
ISSN号	1011-1344
DOI	10.1016/j.jphotobiol.2021.112307
通讯作者	Wang, Gaohong(space@ihb.ac.cn)
英文摘要	During the HH-19-2 flight mission of the Chinese Scientific Experimental System, dried Nostoc sp. cells were exposed to the stratosphere environment (32,508 m altitude) for 3 h and 22 min. The atmospheric pressure, temperature, relative humidity, and ionizing and non-ionizing radiation levels at that altitude are similar to those on the surface of Mars. Although analyses revealed decreased photosynthetic activity, a decline in auto fluorescence, and damage to the cellular morphology in the flight-exposed sample, the death rate was low (28%). Physiological changes were not obvious after the exposure to the Mars-like vacuum conditions. The ground exposed samples showed a similar trend to the flight-exposed samples, but the damage was relatively slight. RNA-sequencing data revealed a number of affected metabolic pathways: photosynthetic system and CO2 fixation function, activation of antioxidant systems, heat shock protein, DNA repair, and protein synthesis. Results suggest that Nostoc sp. has the potential to survive in a Mars-like environment and that it may be a suitable pioneer species to colonize Mars in the future in closed life-support systems (base) or in localities with relatively suitable conditions for life, such as localities with water available.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA17010502] ; Chinese National Science and Technology Major Project[2017ZX07203001] ; Project of Chinese Manned Spaceflight[YYWT-0801-EXP-09]
WOS关键词	UV-B RADIATION ; BIOLOGICAL SOIL CRUSTS ; DESERT CYANOBACTERIUM ; ANABAENA SP ; GENE-EXPRESSION ; OXIDATIVE DAMAGE ; EXTRACELLULAR POLYSACCHARIDES ; ULTRAVIOLET-RADIATION ; MICROBIOTIC CRUSTS ; BACILLUS-SUBTILIS
WOS研究方向	Biochemistry & Molecular Biology ; Biophysics
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000707637900004
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; Chinese National Science and Technology Major Project ; Project of Chinese Manned Spaceflight
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/125617]
专题	中国科学院合肥物质科学研究院
通讯作者	Wang, Gaohong
作者单位	1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China 2.Chinese Acad Sci & Anhui Prov, Hefei Inst Phys Sci, Key Lab Ion Beam Bioengn, Hefei 230031, Anhui, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China
推荐引用方式 GB/T 7714	Ye, Tong,Wang, Bo,Li, Caiyan,et al. Exposure of cyanobacterium Nostoc sp. to the Mars-like stratosphere environment[J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY,2021,224.
APA	Ye, Tong,Wang, Bo,Li, Caiyan,Bian, Po,Chen, Lanzhou,&Wang, Gaohong.(2021).Exposure of cyanobacterium Nostoc sp. to the Mars-like stratosphere environment.JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY,224.
MLA	Ye, Tong,et al."Exposure of cyanobacterium Nostoc sp. to the Mars-like stratosphere environment".JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 224(2021).