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Raman spectroscopic screening of cyanobacterial chasmoliths from crystalline gypsum-The Messinian crisis sediments from Southern Sicily
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SYSNO ASEP 0536762 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Raman spectroscopic screening of cyanobacterial chasmoliths from crystalline gypsum-The Messinian crisis sediments from Southern Sicily Author(s) Jehlička, J. (CZ)
Culka, A. (CZ)
Mareš, Jan (MBU-M) ORCIDSource Title Journal of Raman Spectroscopy. - : Wiley - ISSN 0377-0486
Roč. 51, č. 9 (2020), s. 1802-1812Number of pages 11 s. Language eng - English Country GB - United Kingdom Keywords carotenoids ; cyanobacteria ; endoliths ; gypsum colonisation ; portable Raman spectrometer Subject RIV EE - Microbiology, Virology OECD category Microbiology R&D Projects LO1416 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) ED2.1.00/19.0392 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support MBU-M - RVO:61388971 UT WOS 000479929000001 EID SCOPUS 85069946162 DOI 10.1002/jrs.5671 Annotation This study shows the first results on Raman spectroscopic investigations of pigments from cyanobacterial endolithic colonisations in gypsum of Messinian age (Miocene). Gypsum from outcrops of sedimentary series close to Eraclea Minoa (Sothern Sicily) is sometimes inhabited by endoliths. Raman spectroscopic investigations allow to specify type of colonisation through identification of their pigments. Coccoid cyanobacteria (Chroococcidiopsis sp., Gloeocapsopsis pleurocapsoides, Gloeocapsa compacta, and Synechococcus sciophilus), filamentous heterocytous Nostoc sp., and filamentous bundle-forming Symplocastrum cf. aurantiacum and Microcoleus sp. were found to inhabit different parts of the gypsum samples. Carotenoids (as assumed frequently beta-carotene) are produced in all the samples studied (optimised detection using 514-nm excitation), scytonemin in the samples colonised by G. pleurocapsoides (G1, G2, and G6), and phycobiliproteins in the sample G3 (those detected using 785-nm excitation). This study is the first initiative to collect better knowledge on detecting biomarker traces in the frame of Messinian-age gypsum sequence of relevance for old Martian environments. Workplace Institute of Microbiology Contact Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Year of Publishing 2021 Electronic address https://onlinelibrary.wiley.com/doi/abs/10.1002/jrs.5671
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