Adaptations of epilithic lichens to the microclimate conditions of the White Sea coast
Anatomical and functional features of the following three epilithic lichens Umbilicaria torrefacta, Physcia caesia, Physcia dubia were studied. These species have different morphological characteristics of thalli and occupy similar environmental conditions on supralittoral of the White Sea coast. Th...
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Masaryk University Press
2017
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Online Access: | http://dx.doi.org/10.5817/cpr2017-2-13 https://journals.muni.cz/CPR/article/viewFile/12998/11245 |
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crmasarykunivpr:10.5817/cpr2017-2-13 2024-05-19T07:49:53+00:00 Adaptations of epilithic lichens to the microclimate conditions of the White Sea coast Sonina, Anzhella V. Rumjantseva, Anastasya D. Tsunskaya, Anna A. Androsova, Vera I. 2017 http://dx.doi.org/10.5817/cpr2017-2-13 https://journals.muni.cz/CPR/article/viewFile/12998/11245 unknown Masaryk University Press http://creativecommons.org/licenses/by-nc-nd/4.0 Czech Polar Reports volume 7, issue 2, page 133-143 ISSN 1805-0697 1805-0689 journal-article 2017 crmasarykunivpr https://doi.org/10.5817/cpr2017-2-13 2024-04-30T06:41:29Z Anatomical and functional features of the following three epilithic lichens Umbilicaria torrefacta, Physcia caesia, Physcia dubia were studied. These species have different morphological characteristics of thalli and occupy similar environmental conditions on supralittoral of the White Sea coast. The studied lichens are widespread in the territory of Karelia. U. torrefacta is an obligate epilithic species, Physcia caesia and Physcia dubia colonize both bark of trees and stones. Within the study area, these species were found only on coastal boulders. Photobiont of all studied lichens is unicellular green alga of the genus Trebouxia (Purvis et al. 1992). Based on the study, it was found that Ph. caesia adapts to the environmental conditions through the variability of photosynthetic pigments level which is confirmed by a strong variation of the chlorophylls a/b ratio and chlorophylls/carotenoids ratio (coefficient of variation, CV > 42%) with the stability of anatomical structures (CV ≤ 11%) – functional adaptation. Lichen Ph. dubia adapts through the variability of anatomical layers (upper cortex, algal layer, medullae, lower cortex, thallus thickness) (CV > 22%), and amounts of photosynthetic pigments (CV > 19%) – structural and functional adaptation. For U. torrefacta, the structural adaptation to environmental conditions (CV thickness of anatomical layers > 28%, CV amounts of photosynthetic pigments – 7, 8%) was recorded. Article in Journal/Newspaper White Sea Munipress - Masaryk University Press Czech Polar Reports 7 2 133 143 |
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Open Polar |
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Munipress - Masaryk University Press |
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crmasarykunivpr |
language |
unknown |
description |
Anatomical and functional features of the following three epilithic lichens Umbilicaria torrefacta, Physcia caesia, Physcia dubia were studied. These species have different morphological characteristics of thalli and occupy similar environmental conditions on supralittoral of the White Sea coast. The studied lichens are widespread in the territory of Karelia. U. torrefacta is an obligate epilithic species, Physcia caesia and Physcia dubia colonize both bark of trees and stones. Within the study area, these species were found only on coastal boulders. Photobiont of all studied lichens is unicellular green alga of the genus Trebouxia (Purvis et al. 1992). Based on the study, it was found that Ph. caesia adapts to the environmental conditions through the variability of photosynthetic pigments level which is confirmed by a strong variation of the chlorophylls a/b ratio and chlorophylls/carotenoids ratio (coefficient of variation, CV > 42%) with the stability of anatomical structures (CV ≤ 11%) – functional adaptation. Lichen Ph. dubia adapts through the variability of anatomical layers (upper cortex, algal layer, medullae, lower cortex, thallus thickness) (CV > 22%), and amounts of photosynthetic pigments (CV > 19%) – structural and functional adaptation. For U. torrefacta, the structural adaptation to environmental conditions (CV thickness of anatomical layers > 28%, CV amounts of photosynthetic pigments – 7, 8%) was recorded. |
format |
Article in Journal/Newspaper |
author |
Sonina, Anzhella V. Rumjantseva, Anastasya D. Tsunskaya, Anna A. Androsova, Vera I. |
spellingShingle |
Sonina, Anzhella V. Rumjantseva, Anastasya D. Tsunskaya, Anna A. Androsova, Vera I. Adaptations of epilithic lichens to the microclimate conditions of the White Sea coast |
author_facet |
Sonina, Anzhella V. Rumjantseva, Anastasya D. Tsunskaya, Anna A. Androsova, Vera I. |
author_sort |
Sonina, Anzhella V. |
title |
Adaptations of epilithic lichens to the microclimate conditions of the White Sea coast |
title_short |
Adaptations of epilithic lichens to the microclimate conditions of the White Sea coast |
title_full |
Adaptations of epilithic lichens to the microclimate conditions of the White Sea coast |
title_fullStr |
Adaptations of epilithic lichens to the microclimate conditions of the White Sea coast |
title_full_unstemmed |
Adaptations of epilithic lichens to the microclimate conditions of the White Sea coast |
title_sort |
adaptations of epilithic lichens to the microclimate conditions of the white sea coast |
publisher |
Masaryk University Press |
publishDate |
2017 |
url |
http://dx.doi.org/10.5817/cpr2017-2-13 https://journals.muni.cz/CPR/article/viewFile/12998/11245 |
genre |
White Sea |
genre_facet |
White Sea |
op_source |
Czech Polar Reports volume 7, issue 2, page 133-143 ISSN 1805-0697 1805-0689 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0 |
op_doi |
https://doi.org/10.5817/cpr2017-2-13 |
container_title |
Czech Polar Reports |
container_volume |
7 |
container_issue |
2 |
container_start_page |
133 |
op_container_end_page |
143 |
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1799468456299462656 |