Fourier Transform Raman spectroscopic and scanning electron microscopic study of cryptoendolithic lichens from Antarctica
The Raman microscopic analysis of a cryptoendolithic lichen community in sandstone from East Beacon Ridge, Victoria Land, Antarctica, is described for the first time. The Raman spectra from the crustal, lichen, fungal and accumulation zones were used to assess the strategy adopted by the lichen comm...
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ftnerc:oai:nora.nerc.ac.uk:514463 2023-05-15T13:49:33+02:00 Fourier Transform Raman spectroscopic and scanning electron microscopic study of cryptoendolithic lichens from Antarctica Edwards, H. G. M. Russell, N. C. Wynn-Williams, D. D. 1997-09 http://nora.nerc.ac.uk/id/eprint/514463/ https://doi.org/10.1002/(SICI)1097-4555(199709)28:9<685::AID-JRS160>3.0.CO;2-X unknown Wiley Edwards, H. G. M.; Russell, N. C.; Wynn-Williams, D. D. 1997 Fourier Transform Raman spectroscopic and scanning electron microscopic study of cryptoendolithic lichens from Antarctica. Journal of Raman Spectroscopy, 28 (9). 685-690. https://doi.org/10.1002/(SICI)1097-4555(199709)28:9<685::AID-JRS160>3.0.CO;2-X <https://doi.org/10.1002/(SICI)1097-4555(199709)28:9<685::AID-JRS160>3.0.CO;2-X> Publication - Article PeerReviewed 1997 ftnerc https://doi.org/10.1002/(SICI)1097-4555(199709)28:9<685::AID-JRS160>3.0.CO;2-X 2023-02-04T19:43:29Z The Raman microscopic analysis of a cryptoendolithic lichen community in sandstone from East Beacon Ridge, Victoria Land, Antarctica, is described for the first time. The Raman spectra from the crustal, lichen, fungal and accumulation zones were used to assess the strategy adopted by the lichen community under environmentally stressed conditions. Calcium oxalate dihydrate was found only in the upper lichen zone, whereas calcium oxalate monohydrate was found distributed through several zones; this is ascribed to a microenvironmental temperature gradient. The leaching of iron oxide occurs from the crustal surface zone into the accumulation zone. In contradiction with earlier wet chemical destructive analyses of Antarctic cryptoendolithic communities, the presence of calcium carbonate was not confirmed in the lichen or fungal zones. The Raman spectroscopic results were confirmed by scanning electron microscopic x-ray analysis. Article in Journal/Newspaper Antarc* Antarctic Antarctica Antarctica Journal Victoria Land Natural Environment Research Council: NERC Open Research Archive Antarctic Victoria Land East Beacon ENVELOPE(160.867,160.867,-77.833,-77.833) Beacon Ridge ENVELOPE(1.317,1.317,-72.242,-72.242) |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
The Raman microscopic analysis of a cryptoendolithic lichen community in sandstone from East Beacon Ridge, Victoria Land, Antarctica, is described for the first time. The Raman spectra from the crustal, lichen, fungal and accumulation zones were used to assess the strategy adopted by the lichen community under environmentally stressed conditions. Calcium oxalate dihydrate was found only in the upper lichen zone, whereas calcium oxalate monohydrate was found distributed through several zones; this is ascribed to a microenvironmental temperature gradient. The leaching of iron oxide occurs from the crustal surface zone into the accumulation zone. In contradiction with earlier wet chemical destructive analyses of Antarctic cryptoendolithic communities, the presence of calcium carbonate was not confirmed in the lichen or fungal zones. The Raman spectroscopic results were confirmed by scanning electron microscopic x-ray analysis. |
format |
Article in Journal/Newspaper |
author |
Edwards, H. G. M. Russell, N. C. Wynn-Williams, D. D. |
spellingShingle |
Edwards, H. G. M. Russell, N. C. Wynn-Williams, D. D. Fourier Transform Raman spectroscopic and scanning electron microscopic study of cryptoendolithic lichens from Antarctica |
author_facet |
Edwards, H. G. M. Russell, N. C. Wynn-Williams, D. D. |
author_sort |
Edwards, H. G. M. |
title |
Fourier Transform Raman spectroscopic and scanning electron microscopic study of cryptoendolithic lichens from Antarctica |
title_short |
Fourier Transform Raman spectroscopic and scanning electron microscopic study of cryptoendolithic lichens from Antarctica |
title_full |
Fourier Transform Raman spectroscopic and scanning electron microscopic study of cryptoendolithic lichens from Antarctica |
title_fullStr |
Fourier Transform Raman spectroscopic and scanning electron microscopic study of cryptoendolithic lichens from Antarctica |
title_full_unstemmed |
Fourier Transform Raman spectroscopic and scanning electron microscopic study of cryptoendolithic lichens from Antarctica |
title_sort |
fourier transform raman spectroscopic and scanning electron microscopic study of cryptoendolithic lichens from antarctica |
publisher |
Wiley |
publishDate |
1997 |
url |
http://nora.nerc.ac.uk/id/eprint/514463/ https://doi.org/10.1002/(SICI)1097-4555(199709)28:9<685::AID-JRS160>3.0.CO;2-X |
long_lat |
ENVELOPE(160.867,160.867,-77.833,-77.833) ENVELOPE(1.317,1.317,-72.242,-72.242) |
geographic |
Antarctic Victoria Land East Beacon Beacon Ridge |
geographic_facet |
Antarctic Victoria Land East Beacon Beacon Ridge |
genre |
Antarc* Antarctic Antarctica Antarctica Journal Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Antarctica Journal Victoria Land |
op_relation |
Edwards, H. G. M.; Russell, N. C.; Wynn-Williams, D. D. 1997 Fourier Transform Raman spectroscopic and scanning electron microscopic study of cryptoendolithic lichens from Antarctica. Journal of Raman Spectroscopy, 28 (9). 685-690. https://doi.org/10.1002/(SICI)1097-4555(199709)28:9<685::AID-JRS160>3.0.CO;2-X <https://doi.org/10.1002/(SICI)1097-4555(199709)28:9<685::AID-JRS160>3.0.CO;2-X> |
op_doi |
https://doi.org/10.1002/(SICI)1097-4555(199709)28:9<685::AID-JRS160>3.0.CO;2-X |
_version_ |
1766251547958706176 |