Comparative analysis of heterogeneity of primary photosynthe-tic processes within fruticose lichen thalli: Preliminary study of interspecific differences ( Short Communication )
Two species of fruticose lichens from different habitats and of distinct color, Usnea antarctica and Stereocaulon vesuvianum, were compared using chlorophyll fluorescence imaging in order to study the distribution of primary photosynthetic processes within the thalli. The thallus of U. antarctica is...
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Masaryk University Press
2014
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Online Access: | http://dx.doi.org/10.5817/cpr2014-2-15 https://journals.muni.cz/CPR/article/viewFile/12855/11187 |
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crmasarykunivpr:10.5817/cpr2014-2-15 2024-09-15T17:47:32+00:00 Comparative analysis of heterogeneity of primary photosynthe-tic processes within fruticose lichen thalli: Preliminary study of interspecific differences ( Short Communication ) Conti, Stefano Hazdrová, Jana Hájek, Josef Očenášová, Petra Barták, Miloš Skácelová, Kateřina Adamo, Paola 2014 http://dx.doi.org/10.5817/cpr2014-2-15 https://journals.muni.cz/CPR/article/viewFile/12855/11187 unknown Masaryk University Press http://creativecommons.org/licenses/by-nc-nd/4.0 Czech Polar Reports volume 4, issue 2, page 149-157 ISSN 1805-0697 1805-0689 journal-article 2014 crmasarykunivpr https://doi.org/10.5817/cpr2014-2-15 2024-07-18T04:18:54Z Two species of fruticose lichens from different habitats and of distinct color, Usnea antarctica and Stereocaulon vesuvianum, were compared using chlorophyll fluorescence imaging in order to study the distribution of primary photosynthetic processes within the thalli. The thallus of U. antarctica is yellow with black tips: in this species chlorophyll containing cells were mostly located in the middle region of the thallus and the highest PS II efficiency was detected in the middle to basal region, as shown by the FV/FM and ΦPSII values. No chlorophyll fluorescence was detected in the apical part of the thallus, indicating that little or no photosynthesis takes place in these tissues. The lichen S. vesuvianum is homogeneously pale grayish green and chlorophyll containing cells are distributed along the thallus with maximum concentration in the middle region. In S. vesuvianum, the highest PS II efficiency was detected in the apical to middle region of the thallus, while the basal portion was found to have the lowest efficiency of primary photochemical reactions. Quenching analysis data confirmed the uneven patterns of primary photosynthetic processes within the thalli of these fruticose lichens. Article in Journal/Newspaper Antarc* Antarctica Usnea antarctica Munipress - Masaryk University Press Czech Polar Reports 4 2 149 157 |
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Munipress - Masaryk University Press |
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crmasarykunivpr |
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unknown |
description |
Two species of fruticose lichens from different habitats and of distinct color, Usnea antarctica and Stereocaulon vesuvianum, were compared using chlorophyll fluorescence imaging in order to study the distribution of primary photosynthetic processes within the thalli. The thallus of U. antarctica is yellow with black tips: in this species chlorophyll containing cells were mostly located in the middle region of the thallus and the highest PS II efficiency was detected in the middle to basal region, as shown by the FV/FM and ΦPSII values. No chlorophyll fluorescence was detected in the apical part of the thallus, indicating that little or no photosynthesis takes place in these tissues. The lichen S. vesuvianum is homogeneously pale grayish green and chlorophyll containing cells are distributed along the thallus with maximum concentration in the middle region. In S. vesuvianum, the highest PS II efficiency was detected in the apical to middle region of the thallus, while the basal portion was found to have the lowest efficiency of primary photochemical reactions. Quenching analysis data confirmed the uneven patterns of primary photosynthetic processes within the thalli of these fruticose lichens. |
format |
Article in Journal/Newspaper |
author |
Conti, Stefano Hazdrová, Jana Hájek, Josef Očenášová, Petra Barták, Miloš Skácelová, Kateřina Adamo, Paola |
spellingShingle |
Conti, Stefano Hazdrová, Jana Hájek, Josef Očenášová, Petra Barták, Miloš Skácelová, Kateřina Adamo, Paola Comparative analysis of heterogeneity of primary photosynthe-tic processes within fruticose lichen thalli: Preliminary study of interspecific differences ( Short Communication ) |
author_facet |
Conti, Stefano Hazdrová, Jana Hájek, Josef Očenášová, Petra Barták, Miloš Skácelová, Kateřina Adamo, Paola |
author_sort |
Conti, Stefano |
title |
Comparative analysis of heterogeneity of primary photosynthe-tic processes within fruticose lichen thalli: Preliminary study of interspecific differences ( Short Communication ) |
title_short |
Comparative analysis of heterogeneity of primary photosynthe-tic processes within fruticose lichen thalli: Preliminary study of interspecific differences ( Short Communication ) |
title_full |
Comparative analysis of heterogeneity of primary photosynthe-tic processes within fruticose lichen thalli: Preliminary study of interspecific differences ( Short Communication ) |
title_fullStr |
Comparative analysis of heterogeneity of primary photosynthe-tic processes within fruticose lichen thalli: Preliminary study of interspecific differences ( Short Communication ) |
title_full_unstemmed |
Comparative analysis of heterogeneity of primary photosynthe-tic processes within fruticose lichen thalli: Preliminary study of interspecific differences ( Short Communication ) |
title_sort |
comparative analysis of heterogeneity of primary photosynthe-tic processes within fruticose lichen thalli: preliminary study of interspecific differences ( short communication ) |
publisher |
Masaryk University Press |
publishDate |
2014 |
url |
http://dx.doi.org/10.5817/cpr2014-2-15 https://journals.muni.cz/CPR/article/viewFile/12855/11187 |
genre |
Antarc* Antarctica Usnea antarctica |
genre_facet |
Antarc* Antarctica Usnea antarctica |
op_source |
Czech Polar Reports volume 4, issue 2, page 149-157 ISSN 1805-0697 1805-0689 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0 |
op_doi |
https://doi.org/10.5817/cpr2014-2-15 |
container_title |
Czech Polar Reports |
container_volume |
4 |
container_issue |
2 |
container_start_page |
149 |
op_container_end_page |
157 |
_version_ |
1810496937748594688 |