Ectomycorrhizal symbiosis prepares its host locally and systemically for abiotic cue signaling.

Autor: de Freitas Pereira M; Université de Lorraine, AgroParisTech, INRAE, UMR Silva, F-54000, Nancy, France., Cohen D; Université de Lorraine, AgroParisTech, INRAE, UMR Silva, F-54000, Nancy, France., Auer L; Université de Lorraine, INRAE, Laboratory of Excellence ARBRE, UMR Interactions Arbres/Microorganismes, F-54000, Nancy, France., Aubry N; Université de Lorraine, AgroParisTech, INRAE, UMR Silva, F-54000, Nancy, France., Bogeat-Triboulot MB; Université de Lorraine, AgroParisTech, INRAE, UMR Silva, F-54000, Nancy, France., Buré C; Université de Lorraine, AgroParisTech, INRAE, UMR Silva, F-54000, Nancy, France., Engle NL; Plant Systems Biology Group, Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37831, USA., Jolivet Y; Université de Lorraine, AgroParisTech, INRAE, UMR Silva, F-54000, Nancy, France., Kohler A; Université de Lorraine, INRAE, Laboratory of Excellence ARBRE, UMR Interactions Arbres/Microorganismes, F-54000, Nancy, France., Novák O; Laboratory of Growth Regulators, Faculty of Science of Palacký University & Institute of Experimental Botany of the Czech Academy of Sciences, Šlechtitelů 27, 78371, Olomouc, Czech Republic., Pavlović I; Laboratory of Growth Regulators, Faculty of Science of Palacký University & Institute of Experimental Botany of the Czech Academy of Sciences, Šlechtitelů 27, 78371, Olomouc, Czech Republic., Priault P; Université de Lorraine, AgroParisTech, INRAE, UMR Silva, F-54000, Nancy, France., Tschaplinski TJ; Plant Systems Biology Group, Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37831, USA., Hummel I; Université de Lorraine, AgroParisTech, INRAE, UMR Silva, F-54000, Nancy, France., Vaultier MN; Université de Lorraine, AgroParisTech, INRAE, UMR Silva, F-54000, Nancy, France., Veneault-Fourrey C; Université de Lorraine, INRAE, Laboratory of Excellence ARBRE, UMR Interactions Arbres/Microorganismes, F-54000, Nancy, France.
Jazyk: angličtina
Zdroj: The Plant journal : for cell and molecular biology [Plant J] 2023 Dec; Vol. 116 (6), pp. 1784-1803. Date of Electronic Publication: 2023 Sep 16.
DOI: 10.1111/tpj.16465
Abstrakt: Tree growth and survival are dependent on their ability to perceive signals, integrate them, and trigger timely and fitted molecular and growth responses. While ectomycorrhizal symbiosis is a predominant tree-microbe interaction in forest ecosystems, little is known about how and to what extent it helps trees cope with environmental changes. We hypothesized that the presence of Laccaria bicolor influences abiotic cue perception by Populus trichocarpa and the ensuing signaling cascade. We submitted ectomycorrhizal or non-ectomycorrhizal P. trichocarpa cuttings to short-term cessation of watering or ozone fumigation to focus on signaling networks before the onset of any physiological damage. Poplar gene expression, metabolite levels, and hormone levels were measured in several organs (roots, leaves, mycorrhizas) and integrated into networks. We discriminated the signal responses modified or maintained by ectomycorrhization. Ectomycorrhizas buffered hormonal changes in response to short-term environmental variations systemically prepared the root system for further fungal colonization and alleviated part of the root abscisic acid (ABA) signaling. The presence of ectomycorrhizas in the roots also modified the leaf multi-omics landscape and ozone responses, most likely through rewiring of the molecular drivers of photosynthesis and the calcium signaling pathway. In conclusion, P. trichocarpa-L. bicolor symbiosis results in a systemic remodeling of the host's signaling networks in response to abiotic changes. In addition, ectomycorrhizal, hormonal, metabolic, and transcriptomic blueprints are maintained in response to abiotic cues, suggesting that ectomycorrhizas are less responsive than non-mycorrhizal roots to abiotic challenges.
(© 2023 Society for Experimental Biology and John Wiley & Sons Ltd.)
Databáze: MEDLINE
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