Halotolerance in Lichens: Symbiotic Coalition Against Salt Stress
Lichens are among the most conspicuous and ubiquitous symbiosis on this planet. They are highly adapted to terrestrial habitats of all climatic zones including the most hostile environments on Earth, such as high altitudes in the Himalayas or the cold deserts of Antarctica. Among the extreme habitat...
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ftoceanrep:oai:oceanrep.geomar.de:38379 2023-05-15T13:44:37+02:00 Halotolerance in Lichens: Symbiotic Coalition Against Salt Stress Delmail, David Grube, Martin Parrot, Delphine Cook-Moreau, Jeanne Boustie, Joël Labrousse, Pascal Tomasi, Sophie 2012 https://oceanrep.geomar.de/id/eprint/38379/ https://doi.org/10.1007/978-1-4614-4747-4_4 unknown Delmail, D., Grube, M., Parrot, D., Cook-Moreau, J., Boustie, J., Labrousse, P. and Tomasi, S. (2012) Halotolerance in Lichens: Symbiotic Coalition Against Salt Stress. In: Ecophysiology and Responses of Plants under Salt Stress. . UNSPECIFIED, pp. 115-148. DOI 10.1007/978-1-4614-4747-4_4 <https://doi.org/10.1007/978-1-4614-4747-4_4>. doi:10.1007/978-1-4614-4747-4_4 info:eu-repo/semantics/closedAccess Book chapter PeerReviewed 2012 ftoceanrep https://doi.org/10.1007/978-1-4614-4747-4_4 2023-04-07T15:33:50Z Lichens are among the most conspicuous and ubiquitous symbiosis on this planet. They are highly adapted to terrestrial habitats of all climatic zones including the most hostile environments on Earth, such as high altitudes in the Himalayas or the cold deserts of Antarctica. Among the extreme habitats are the littoral (or intertidal) zones of coasts. In this chapter, we present an overview of the current knowledge about the halotolerance mechanisms in lichens. Halotolerant organisms generally accumulate osmotically active solutes to cope with increasing external salinity. In intertidal lichens, mannitol could play an important role in osmoregulation. Epilichenic bacterial colonies may be also involved in limiting lichen nutrient imbalance by producing osmoprotective compounds and storing high ionic concentrations. In addition, the comparison with related inland species suggests that morphological adaptations could also be involved in adaptation to increased salt levels. Maritime species often have strongly conglutinated hyphae and small or no intercellular spaces in their thalli. So far, little genetic information exists about the genes involved in halotolerance and their regulation. Comparison of forthcoming genomic information from lichen fungi with those of other halotolerant fungi will soon help to change the picture and reveal genetic adaptations to saline environments. Book Part Antarc* Antarctica OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) 115 148 New York, NY |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
unknown |
description |
Lichens are among the most conspicuous and ubiquitous symbiosis on this planet. They are highly adapted to terrestrial habitats of all climatic zones including the most hostile environments on Earth, such as high altitudes in the Himalayas or the cold deserts of Antarctica. Among the extreme habitats are the littoral (or intertidal) zones of coasts. In this chapter, we present an overview of the current knowledge about the halotolerance mechanisms in lichens. Halotolerant organisms generally accumulate osmotically active solutes to cope with increasing external salinity. In intertidal lichens, mannitol could play an important role in osmoregulation. Epilichenic bacterial colonies may be also involved in limiting lichen nutrient imbalance by producing osmoprotective compounds and storing high ionic concentrations. In addition, the comparison with related inland species suggests that morphological adaptations could also be involved in adaptation to increased salt levels. Maritime species often have strongly conglutinated hyphae and small or no intercellular spaces in their thalli. So far, little genetic information exists about the genes involved in halotolerance and their regulation. Comparison of forthcoming genomic information from lichen fungi with those of other halotolerant fungi will soon help to change the picture and reveal genetic adaptations to saline environments. |
format |
Book Part |
author |
Delmail, David Grube, Martin Parrot, Delphine Cook-Moreau, Jeanne Boustie, Joël Labrousse, Pascal Tomasi, Sophie |
spellingShingle |
Delmail, David Grube, Martin Parrot, Delphine Cook-Moreau, Jeanne Boustie, Joël Labrousse, Pascal Tomasi, Sophie Halotolerance in Lichens: Symbiotic Coalition Against Salt Stress |
author_facet |
Delmail, David Grube, Martin Parrot, Delphine Cook-Moreau, Jeanne Boustie, Joël Labrousse, Pascal Tomasi, Sophie |
author_sort |
Delmail, David |
title |
Halotolerance in Lichens: Symbiotic Coalition Against Salt Stress |
title_short |
Halotolerance in Lichens: Symbiotic Coalition Against Salt Stress |
title_full |
Halotolerance in Lichens: Symbiotic Coalition Against Salt Stress |
title_fullStr |
Halotolerance in Lichens: Symbiotic Coalition Against Salt Stress |
title_full_unstemmed |
Halotolerance in Lichens: Symbiotic Coalition Against Salt Stress |
title_sort |
halotolerance in lichens: symbiotic coalition against salt stress |
publishDate |
2012 |
url |
https://oceanrep.geomar.de/id/eprint/38379/ https://doi.org/10.1007/978-1-4614-4747-4_4 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
Delmail, D., Grube, M., Parrot, D., Cook-Moreau, J., Boustie, J., Labrousse, P. and Tomasi, S. (2012) Halotolerance in Lichens: Symbiotic Coalition Against Salt Stress. In: Ecophysiology and Responses of Plants under Salt Stress. . UNSPECIFIED, pp. 115-148. DOI 10.1007/978-1-4614-4747-4_4 <https://doi.org/10.1007/978-1-4614-4747-4_4>. doi:10.1007/978-1-4614-4747-4_4 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/978-1-4614-4747-4_4 |
container_start_page |
115 |
op_container_end_page |
148 |
op_publisher_place |
New York, NY |
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1766203993071026176 |