Ecological and metabolic implications of the nurse effect of Maihueniopsis camachoi in the Atacama Desert.
Autor: | Díaz FP; Instituto de Geografía, Pontificia Universidad Católica de Valparaíso, 2362807, Valparaíso, Chile.; Institute of Ecology and Biodiversity, Chile (IEB), Las Palmeras 3425, Ñuñoa, 7800003, Santiago, Chile.; ANID Millennium Institute Center for Genome Regulation and ANID Millennium Institute for Integrative Biology (iBio), Libertador Bernardo O'Higgins 340, 8331150, Santiago, Chile., Dussarrat T; Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Libertador Bernardo O'Higgins 340, 8331150, Santiago, Chile.; Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France., Carrasco-Puga G; ANID Millennium Institute Center for Genome Regulation and ANID Millennium Institute for Integrative Biology (iBio), Libertador Bernardo O'Higgins 340, 8331150, Santiago, Chile.; Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Libertador Bernardo O'Higgins 340, 8331150, Santiago, Chile., Colombié S; Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France.; Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France., Prigent S; Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France.; Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France., Decros G; Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France., Bernillon S; Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France.; Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France., Cassan C; Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France.; Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France., Flandin A; Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France.; Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France., Guerrero PC; Institute of Ecology and Biodiversity, Chile (IEB), Las Palmeras 3425, Ñuñoa, 7800003, Santiago, Chile.; Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, 7800003, Concepción, Chile.; Instituto Milenio Biodiversidad de Ecosistemas Antárticos y Subantárticos, 8331150, Santiago, Chile., Gibon Y; Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France.; Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France., Rolin D; Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France.; Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France., Cavieres LA; Institute of Ecology and Biodiversity, Chile (IEB), Las Palmeras 3425, Ñuñoa, 7800003, Santiago, Chile.; Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, 7800003, Concepción, Chile., Pétriacq P; Univ. Bordeaux, INRAE, UMR1332 BFP, 33882, Villenave d'Ornon, France.; Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France., Latorre C; Institute of Ecology and Biodiversity, Chile (IEB), Las Palmeras 3425, Ñuñoa, 7800003, Santiago, Chile.; Departamento de Ecología, Pontificia Universidad Católica de Chile, Libertador Bernardo O'Higgins 340, 8331150, Santiago, Chile., Gutiérrez RA; Institute of Ecology and Biodiversity, Chile (IEB), Las Palmeras 3425, Ñuñoa, 7800003, Santiago, Chile.; ANID Millennium Institute Center for Genome Regulation and ANID Millennium Institute for Integrative Biology (iBio), Libertador Bernardo O'Higgins 340, 8331150, Santiago, Chile.; Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Libertador Bernardo O'Higgins 340, 8331150, Santiago, Chile. |
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Jazyk: | angličtina |
Zdroj: | The New phytologist [New Phytol] 2024 Feb; Vol. 241 (3), pp. 1074-1087. Date of Electronic Publication: 2023 Nov 20. |
DOI: | 10.1111/nph.19415 |
Abstrakt: | Plant-plant positive interactions are key drivers of community structure. Yet, the underlying molecular mechanisms of facilitation processes remain unexplored. We investigated the 'nursing' effect of Maihueniopsis camachoi, a cactus that thrives in the Atacama Desert between c. 2800 and 3800 m above sea level. We hypothesised that an important protective factor is thermal amelioration of less cold-tolerant species with a corresponding impact on molecular phenotypes. To test this hypothesis, we compared plant cover and temperatures within the cactus foliage with open areas and modelled the effect of temperatures on plant distribution. We combined eco-metabolomics and machine learning to test the molecular consequences of this association. Multiple species benefited from the interaction with M. camachoi. A conspicuous example was the extended distribution of Atriplex imbricata to colder elevations in association with M. camachoi (400 m higher as compared to plants in open areas). Metabolomics identified 93 biochemical markers predicting the interaction status of A. imbricata with 79% accuracy, independently of year. These findings place M. camachoi as a key species in Atacama plant communities, driving local biodiversity with an impact on molecular phenotypes of nursed species. Our results support the stress-gradient hypothesis and provide pioneer insights into the metabolic consequences of facilitation. (© 2023 The Authors. New Phytologist © 2023 New Phytologist Foundation.) |
Databáze: | MEDLINE |
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