Arid
DOI10.1089/ast.2016.1487
Colonization of Snow by Microorganisms as Revealed Using Miniature Raman Spectrometers-Possibilities for Detecting Carotenoids of Psychrophiles on Mars?
Jehlicka, Jan1; Culka, Adam1; Nedbalova, Linda2
通讯作者Jehlicka, Jan
来源期刊ASTROBIOLOGY
ISSN1531-1074
EISSN1557-8070
出版年2016
卷号16期号:12页码:913-924
英文摘要

We tested the potential of a miniaturized Raman spectrometer for use in field detection of snow algae pigments. A miniature Raman spectrometer, equipped with an excitation laser at 532 nm, allowed for the detection of carotenoids in cells of Chloromonas nivalis and Chlamydomonas nivalis at different stages of their life cycle. Astaxanthin, the major photoprotective pigment, was detected in algal blooms originating in snows at two alpine European sites that differed in altitude (Krkonose Mts., Czech Republic, 1502m a.s.l., and Otztal Alps, Austria, 2790m a.s.l.). Comparison is made with a common microalga exclusively producing astaxanthin (Haematococcus pluvialis). The handheld Raman spectrometer is a useful tool for fast and direct field estimations of the presence of carotenoids (mainly astaxanthin) within blooms of snow algae. Application of miniature Raman instruments as well as flight prototypes in areas where microbes are surviving under extreme conditions is an important stage in preparation for successful deployment of this kind of instrumentation in the framework of forthcoming astrobiological missions to Mars.


英文关键词Snow algae Chloromonas nivalis Chlamydomonas nivalis On-site field detection Raman spectroscopy Astaxanthin
类型Article
语种英语
国家Czech Republic
收录类别SCI-E
WOS记录号WOS:000391853800001
WOS关键词ALGA CHLAMYDOMONAS-NIVALIS ; HALOPHILIC ARCHAEA ; VIBRATIONAL SPECTROSCOPY ; MICROBIAL COMMUNITIES ; ORGANIC-COMPOUNDS ; ATACAMA DESERT ; IDENTIFICATION ; LIFE ; ICE ; HABITABILITY
WOS类目Astronomy & Astrophysics ; Biology ; Geosciences, Multidisciplinary
WOS研究方向Astronomy & Astrophysics ; Life Sciences & Biomedicine - Other Topics ; Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/191531
作者单位1.Charles Univ Prague, Inst Geochem Mineral & Mineral Resources, Prague 12843 2, Czech Republic;
2.Charles Univ Prague, Dept Ecol, Prague, Czech Republic
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GB/T 7714
Jehlicka, Jan,Culka, Adam,Nedbalova, Linda. Colonization of Snow by Microorganisms as Revealed Using Miniature Raman Spectrometers-Possibilities for Detecting Carotenoids of Psychrophiles on Mars?[J],2016,16(12):913-924.
APA Jehlicka, Jan,Culka, Adam,&Nedbalova, Linda.(2016).Colonization of Snow by Microorganisms as Revealed Using Miniature Raman Spectrometers-Possibilities for Detecting Carotenoids of Psychrophiles on Mars?.ASTROBIOLOGY,16(12),913-924.
MLA Jehlicka, Jan,et al."Colonization of Snow by Microorganisms as Revealed Using Miniature Raman Spectrometers-Possibilities for Detecting Carotenoids of Psychrophiles on Mars?".ASTROBIOLOGY 16.12(2016):913-924.
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