Ecology of endolithic lichens colonizing granite in continental Antarctica
In this study, the symbiont cells of several endolithic lichens colonizing granite in continental Antarctica and the relationships they have with the abiotic environment were analyzed in situ , in order to characterize the microecosystems integrating these lichens, from a microecological perspective...
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Cambridge University Press (CUP)
2005
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Online Access: | http://dx.doi.org/10.1017/s0024282905014969 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0024282905014969 |
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crcambridgeupr:10.1017/s0024282905014969 2024-09-15T17:47:53+00:00 Ecology of endolithic lichens colonizing granite in continental Antarctica DE LOS RÍOS, Asunción WIERZCHOS, Jacek SANCHO, Leopoldo G. GREEN, T. G. Allan ASCASO, Carmen 2005 http://dx.doi.org/10.1017/s0024282905014969 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0024282905014969 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms The Lichenologist volume 37, issue 5, page 383-395 ISSN 0024-2829 1096-1135 journal-article 2005 crcambridgeupr https://doi.org/10.1017/s0024282905014969 2024-07-10T04:04:41Z In this study, the symbiont cells of several endolithic lichens colonizing granite in continental Antarctica and the relationships they have with the abiotic environment were analyzed in situ , in order to characterize the microecosystems integrating these lichens, from a microecological perspective. Mycobiont and photobiont cells, the majority classified as living by fluorescent vitality testing, were observed distributed through the fissures of the granite. The fact that extracellular polymeric substances were commonly observed close to these cells and the features of these compounds, suggest a certain protective role for these substances against the harsh environmental conditions. Different chemical, physical and biological relationships take place within the endolithic biofilms where the lichens are found, possibly affecting the survival and distribution of these organisms. The alteration of bedrock minerals and synthesis of biominerals in the proximity of these lichens give rise to different chemical microenvironments and suggest their participation in mineral nutrient cycling. Article in Journal/Newspaper Antarc* Antarctica Cambridge University Press The Lichenologist 37 5 383 395 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
In this study, the symbiont cells of several endolithic lichens colonizing granite in continental Antarctica and the relationships they have with the abiotic environment were analyzed in situ , in order to characterize the microecosystems integrating these lichens, from a microecological perspective. Mycobiont and photobiont cells, the majority classified as living by fluorescent vitality testing, were observed distributed through the fissures of the granite. The fact that extracellular polymeric substances were commonly observed close to these cells and the features of these compounds, suggest a certain protective role for these substances against the harsh environmental conditions. Different chemical, physical and biological relationships take place within the endolithic biofilms where the lichens are found, possibly affecting the survival and distribution of these organisms. The alteration of bedrock minerals and synthesis of biominerals in the proximity of these lichens give rise to different chemical microenvironments and suggest their participation in mineral nutrient cycling. |
format |
Article in Journal/Newspaper |
author |
DE LOS RÍOS, Asunción WIERZCHOS, Jacek SANCHO, Leopoldo G. GREEN, T. G. Allan ASCASO, Carmen |
spellingShingle |
DE LOS RÍOS, Asunción WIERZCHOS, Jacek SANCHO, Leopoldo G. GREEN, T. G. Allan ASCASO, Carmen Ecology of endolithic lichens colonizing granite in continental Antarctica |
author_facet |
DE LOS RÍOS, Asunción WIERZCHOS, Jacek SANCHO, Leopoldo G. GREEN, T. G. Allan ASCASO, Carmen |
author_sort |
DE LOS RÍOS, Asunción |
title |
Ecology of endolithic lichens colonizing granite in continental Antarctica |
title_short |
Ecology of endolithic lichens colonizing granite in continental Antarctica |
title_full |
Ecology of endolithic lichens colonizing granite in continental Antarctica |
title_fullStr |
Ecology of endolithic lichens colonizing granite in continental Antarctica |
title_full_unstemmed |
Ecology of endolithic lichens colonizing granite in continental Antarctica |
title_sort |
ecology of endolithic lichens colonizing granite in continental antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2005 |
url |
http://dx.doi.org/10.1017/s0024282905014969 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0024282905014969 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
The Lichenologist volume 37, issue 5, page 383-395 ISSN 0024-2829 1096-1135 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0024282905014969 |
container_title |
The Lichenologist |
container_volume |
37 |
container_issue |
5 |
container_start_page |
383 |
op_container_end_page |
395 |
_version_ |
1810497580337987584 |