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Review
. 2023 Mar;23(6):e2200108.
doi: 10.1002/pmic.202200108. Epub 2023 Jan 3.

Proteomics as a tool to decipher plant responses in arbuscular mycorrhizal interactions: a meta-analysis

Guido Domingo  1 , Candida Vannini  1 , Marcella Bracale  1 , Paola Bonfante  2
Affiliations
Review

Proteomics as a tool to decipher plant responses in arbuscular mycorrhizal interactions: a meta-analysis

Guido Domingo et al. Proteomics. 2023 Mar.

Abstract

The beneficial symbiosis between plants and arbuscular mycorrhizal (AM) fungi leads to a deep reprogramming of plant metabolism, involving the regulation of several molecular mechanisms, many of which are poorly characterized. In this regard, proteomics is a powerful tool to explore changes related to plant-microbe interactions. This study provides a comprehensive proteomic meta-analysis conducted on AM-modulated proteins at local (roots) and systemic (shoots/leaves) level. The analysis was implemented by an in-depth study of root membrane-associated proteins and by a comparison with a transcriptome meta-analysis. A total of 4262 differentially abundant proteins were retrieved and, to identify the most relevant AM-regulated processes, a range of bioinformatic studies were conducted, including functional enrichment and protein-protein interaction network analysis. In addition to several protein transporters which are present in higher amounts in AM plants, and which are expected due to the well-known enhancement of AM-induced mineral uptake, our analysis revealed some novel traits. We detected a massive systemic reprogramming of translation with a central role played by the ribosomal translational apparatus. On one hand, these new protein-synthesis efforts well support the root cellular re-organization required by the fungal penetration, and on the other they have a systemic impact on primary metabolism.

Keywords: arbuscular mycorrhizal fungi; beneficial symbiosis; meta-analysis; proteomics.

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