The outstanding capacity of Prasiola antarctica to thrive in contrasting harsh environments relies on the constitutive protection of thylakoids and on morphological plasticity
dc.contributor.author | Arzac Garmendia, Miren Irati | |
dc.contributor.author | Miranda González de Apodaca, Jon | |
dc.contributor.author | De los Ríos, Asunción | |
dc.contributor.author | Castanyer Mallol, Francesc | |
dc.contributor.author | García Plazaola, José Ignacio | |
dc.contributor.author | Fernández Marín, Beatriz | |
dc.date.accessioned | 2024-07-05T15:12:18Z | |
dc.date.available | 2024-07-05T15:12:18Z | |
dc.date.issued | 2024-06 | |
dc.identifier.citation | Tha Plant Journal 119(1) : 65-83 (2024) | es_ES |
dc.identifier.issn | 0960-7412 | |
dc.identifier.issn | 1365-313X | |
dc.identifier.uri | http://hdl.handle.net/10810/68798 | |
dc.description.abstract | The determination of physiological tolerance ranges of photosynthetic species and of the biochemical mechanisms underneath are fundamental to identify target processes and metabolites that will inspire enhanced plant management and production for the future. In this context, the terrestrial green algae within the genus Prasiola represent ideal models due to their success in harsh environments (polar tundras) and their extraordinary ecological plasticity. Here we focus on the outstanding Prasiola antarctica and compare two natural populations living in very contrasting microenvironments in Antarctica: the dry sandy substrate of a beach and the rocky bed of an ephemeral freshwater stream. Specifically, we assessed their photosynthetic performance at different temperatures, reporting for the first time gnsd values in algae and changes in thylakoid metabolites in response to extreme desiccation. Stream population showed lower α-tocopherol content and thicker cell walls and thus, lower gnsd and photosynthesis. Both populations had high temperatures for optimal photosynthesis (around +20°C) and strong constitutive tolerance to freezing and desiccation. This tolerance seems to be related to the high constitutive levels of xanthophylls and of the cylindrical lipids di- and tri-galactosyldiacylglycerol in thylakoids, very likely related to the effective protection and stability of membranes. Overall, P. antarctica shows a complex battery of constitutive and plastic protective mechanisms that enable it to thrive under harsh conditions and to acclimate to very contrasting microenvironments, respectively. Some of these anatomical and biochemical adaptations may partially limit photosynthesis, but this has a great potential to rise in a context of increasing temperature. | es_ES |
dc.description.sponsorship | This research was funded through the following projects: PGC2018-093824-B-C41, PGC2018-093824-B-C44 and PID2022-139455NB-C32 funded by MCIN/AEI/10.13039/501100011033 and by ‘ERDF A way of making Europe’; PID2019-105469RB-C22 funded by MCIN/AEI/10.13039/501100011033/FEDER, UE; and by IT1648-22 funded by the Basque Government. MIA enjoyed a pre-doctoral grant from the Basque Government. BF-M enjoyed the RYC2021-031321-I grant funded by MCIN/AEI/10.13039/501100011033 and by the European Union NextGenerationEU/PRTR. FC-M enjoyed a pre-doctoral fellowship from the MCIN (PRE-2019-090011). The lipid profile data were acquired at Kansas Lipidomics Research Center (KLRC). Instrument acquisition and method development at KLRC was supported by Kansas INBRE (NIH Grant P20 RR16475 from the INBRE programme of the National Center for Research Resources), NSF EPSCoR grant EPS-0236913, Kansas Technology Enterprise Corporation and Kansas State University. We want to thank Usue Pérez-López for the assistance with the methodology of the AN/Cc curves and related parameters. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Wiley | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICIU/PGC2018-093824-B-C41 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICIU/PGC2018-093824-B-C44 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/PID2022-139455NB-C32 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/PID2019-105469RB-C22 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/RYC2021-031321-I | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | tolerance | es_ES |
dc.subject | plasticity | es_ES |
dc.subject | Prasiola antarctica | es_ES |
dc.subject | photosynthesis | es_ES |
dc.subject | morphology | es_ES |
dc.subject | desiccation | es_ES |
dc.subject | freezing | es_ES |
dc.subject | tri- galactosyldiacylglycerol | es_ES |
dc.subject | Antarctica | es_ES |
dc.title | The outstanding capacity of Prasiola antarctica to thrive in contrasting harsh environments relies on the constitutive protection of thylakoids and on morphological plasticity | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2024 The Authors. The Plant Journal published by Society for Experimental Biology and John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://onlinelibrary.wiley.com/doi/10.1111/tpj.16742 | es_ES |
dc.identifier.doi | 10.1111/tpj.16742 | |
dc.departamentoes | Biología vegetal y ecología | es_ES |
dc.departamentoeu | Landaren biologia eta ekologia | es_ES |
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Except where otherwise noted, this item's license is described as © 2024 The Authors. The Plant Journal published by Society for Experimental Biology and John Wiley & Sons Ltd.
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.