Responses of hydrophilic lichens to global warming: preliminary results
International audience Lichens are among the most conspicuous and ubiquitous symbioses on the 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. Lic...
Main Authors: | , , |
---|---|
Other Authors: | , , |
Format: | Conference Object |
Language: | English |
Published: |
HAL CCSD
2013
|
Subjects: | |
Online Access: | https://univ-rennes.hal.science/hal-00834674 |
id |
ftunivrennes1hal:oai:HAL:hal-00834674v1 |
---|---|
record_format |
openpolar |
spelling |
ftunivrennes1hal:oai:HAL:hal-00834674v1 2024-05-12T07:54:48+00:00 Responses of hydrophilic lichens to global warming: preliminary results Delmail, David Aissa Abdi, Fatima Tomasi, Sophie Institut des Sciences Chimiques de Rennes (ISCR) Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes) Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) Bordeaux, France 2013-05-28 https://univ-rennes.hal.science/hal-00834674 en eng HAL CCSD hal-00834674 https://univ-rennes.hal.science/hal-00834674 Macrophytes https://univ-rennes.hal.science/hal-00834674 Macrophytes, May 2013, Bordeaux, France [SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis info:eu-repo/semantics/conferenceObject Conference papers 2013 ftunivrennes1hal 2024-04-18T00:03:00Z International audience Lichens are among the most conspicuous and ubiquitous symbioses on the 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. Lichen is an association between fungus (mycobiont) and photosynthetic microorganisms (photobionts: cyanobacteria and/or microalgae). However a third symbiot is now considered: bacteria (bacteriobionts) living on and in lichen. Thus, the complex interactions between the metabolic pathways of each symbiotic partner are supposed to be necessary to keep safe the holobiont functioning in this wide range of environmental conditions. Microorganisms play here key metabolic roles e.g. photobionts mainly provide primary metabolites to mycobiont that is unable to synthesize or feed, whereas bacteriobionts may limit holobiont pathogens and grazers through antibiotics. However, considering the hot topic of global warming, the involvement of epithallic bacterial communities from inland aquatic environments in autoecological-disturbance regulation (e.g. thermic and osmotic stress) remains still unknown and needs deep investigations. The chemical interactions between symbiot biodiversity and their effects on host metabolome, need to be investigated. It is also necessary to focus on the involvement of bacterial metabolites in holobiont protection toward autoecological stress, and to highlight the benefits of their environmental release to photobiont-cell integrity and mycobiont homeostasis. Conference Object Antarc* Antarctica Université de Rennes 1: Publications scientifiques (HAL) |
institution |
Open Polar |
collection |
Université de Rennes 1: Publications scientifiques (HAL) |
op_collection_id |
ftunivrennes1hal |
language |
English |
topic |
[SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis |
spellingShingle |
[SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis Delmail, David Aissa Abdi, Fatima Tomasi, Sophie Responses of hydrophilic lichens to global warming: preliminary results |
topic_facet |
[SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis |
description |
International audience Lichens are among the most conspicuous and ubiquitous symbioses on the 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. Lichen is an association between fungus (mycobiont) and photosynthetic microorganisms (photobionts: cyanobacteria and/or microalgae). However a third symbiot is now considered: bacteria (bacteriobionts) living on and in lichen. Thus, the complex interactions between the metabolic pathways of each symbiotic partner are supposed to be necessary to keep safe the holobiont functioning in this wide range of environmental conditions. Microorganisms play here key metabolic roles e.g. photobionts mainly provide primary metabolites to mycobiont that is unable to synthesize or feed, whereas bacteriobionts may limit holobiont pathogens and grazers through antibiotics. However, considering the hot topic of global warming, the involvement of epithallic bacterial communities from inland aquatic environments in autoecological-disturbance regulation (e.g. thermic and osmotic stress) remains still unknown and needs deep investigations. The chemical interactions between symbiot biodiversity and their effects on host metabolome, need to be investigated. It is also necessary to focus on the involvement of bacterial metabolites in holobiont protection toward autoecological stress, and to highlight the benefits of their environmental release to photobiont-cell integrity and mycobiont homeostasis. |
author2 |
Institut des Sciences Chimiques de Rennes (ISCR) Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes) Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Conference Object |
author |
Delmail, David Aissa Abdi, Fatima Tomasi, Sophie |
author_facet |
Delmail, David Aissa Abdi, Fatima Tomasi, Sophie |
author_sort |
Delmail, David |
title |
Responses of hydrophilic lichens to global warming: preliminary results |
title_short |
Responses of hydrophilic lichens to global warming: preliminary results |
title_full |
Responses of hydrophilic lichens to global warming: preliminary results |
title_fullStr |
Responses of hydrophilic lichens to global warming: preliminary results |
title_full_unstemmed |
Responses of hydrophilic lichens to global warming: preliminary results |
title_sort |
responses of hydrophilic lichens to global warming: preliminary results |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://univ-rennes.hal.science/hal-00834674 |
op_coverage |
Bordeaux, France |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Macrophytes https://univ-rennes.hal.science/hal-00834674 Macrophytes, May 2013, Bordeaux, France |
op_relation |
hal-00834674 https://univ-rennes.hal.science/hal-00834674 |
_version_ |
1798852334333198336 |