Colonization of snow by microorganisms as revealed using miniature raman spectrometers-possibilities for detecting carotenoids of psychrophiles on Mars?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F16%3A10332250" target="_blank" >RIV/00216208:11310/16:10332250 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1089/ast.2016.1487" target="_blank" >http://dx.doi.org/10.1089/ast.2016.1487</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1089/ast.2016.1487" target="_blank" >10.1089/ast.2016.1487</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Colonization of snow by microorganisms as revealed using miniature raman spectrometers-possibilities for detecting carotenoids of psychrophiles on Mars?

Popis výsledku v původním jazyce

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 (Krkonos?e Mts., Czech Republic, 1502m a.s.l., and Ö tztal 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.

Název v anglickém jazyce

Colonization of snow by microorganisms as revealed using miniature raman spectrometers-possibilities for detecting carotenoids of psychrophiles on Mars?

Popis výsledku anglicky

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 (Krkonos?e Mts., Czech Republic, 1502m a.s.l., and Ö tztal 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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DD - Geochemie

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP210%2F10%2F0467" target="_blank" >GAP210/10/0467: Detekce exobiologických markerů Ramanovou spektrometrií jako hlavní metodou</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Astrobiology

ISSN

1531-1074

e-ISSN

—

Svazek periodika

16

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

913-924

Kód UT WoS článku

000391853800001

EID výsledku v databázi Scopus

2-s2.0-85007401265