P.-M. Delaux

Conservation of symbiotic signalling across 450 million years of plant evolution

This study shows that the common symbiotic pathway genes are essential for arbuscular mycorrhizal symbiosis in bryophytes, indicating conservation of this pathway for 450 million years.

LysM-RLK plays an ancestral symbiotic function in plants

This study shows that LysM-RLKs in liverworts are involved in symbiosis and COs/LCOs perception, supporting their ancestral role in AM formation.

Annexin and calcium-regulated priming of legume root cells for endosymbiotic infection

This study identifies MtAnn1 annexin as a key regulator of calcium signaling and cytoplasmic bridge formation during legume root infection by rhizobia.

The Marchantia pangenome reveals ancient mechanisms of plant adaptation to the environment

This study analyzes the pangenome of Marchantia polymorpha to identify genetic features involved in plant adaptation to terrestrial environments, finding shared and lineage-specific genes with flowering plants.

Comparative Phylogenomics and Phylotranscriptomics Provide Insights into the Genetic Complexity of Nitrogen Fixing Root Nodule Symbiosis

The paper uses phylogenomic and phylotranscriptomic analyses to study the evolution of nitrogen-fixing root nodule symbiosis across the Nitrogen-Fixing Nodulation Clade, finding no convergence at the amino acid level and highlighting the role of NIN as a master regulator.

Comparative phylotranscriptomics reveals a 110 million years-old symbiotic program

This study reconstructs the ancestral transcriptomic program for root-nodule nitrogen-fixing symbiosis by comparing transcriptomic responses across nine host plants, revealing most RNS novelties originated in a 110 million-year-old ancestor.

A novel cis-element enabled bacterial uptake by plant cells

The paper identifies a cis-regulatory element, PACE, critical for bacterial uptake in plant cells through its role in nodule formation and infection thread development.

Remorin proteins serve as membrane topology scaffolds in plants

The paper shows remorin proteins stabilize membrane tubules and curvature during symbiotic infections in plants.

Phylogenomics reveals the evolutionary origin of lichenization in chlorophyte algae

The paper investigates the evolutionary origin of lichenization in chlorophyte algae by analyzing genomes and transcriptomes of lichen algal symbionts and non-symbiotic algae, identifying convergent evolution and horizontal gene transfer as key factors.

An ancestral function of strigolactones as symbiotic rhizosphere signals

This study identifies BSB, an ancestral strigolactone in bryophytes, which functions as a rhizosphere signal for AM symbiosis and was later co-opted as a plant hormone.

Integration of A Nitrate-Related Signaling Pathway in Rhizobia-Induced Responses During Interactions with Non Legume Host Arabidopsis thaliana

This study shows that rhizobia induce root morphological changes in Arabidopsis, regulated by nitrate signaling pathways involving NLP4, NLP5, and NRT1.1.

A formin-mediated cell wall- plasma membrane- cytoskeleton continuum is required for symbiotic infections in Medicago truncatula

This study identifies SYFO1, a formin protein in Medicago truncatula, which connects the cell wall and cytoskeleton to facilitate rhizobial infection by enabling plasma membrane remodeling and cell polarization.

An ancestral signalling pathway is conserved in plant lineages forming intracellular symbioses

The paper shows that an ancestral signaling pathway is conserved in plant lineages with intracellular symbioses but lost in those with extracellular symbioses.

The Medicago truncatula DREPP protein triggers microtubule fragmentation in membrane nanodomains during symbiotic infections

This study identifies the DREPP protein in Medicago truncatula and shows it regulates microtubule reorganization during rhizobial infection by localizing to membrane nanodomains.

Lipid transfer from plants to arbuscular mycorrhiza fungi

The paper identifies plant lipid transfer to arbuscular mycorrhiza fungi, showing that fungal growth depends on lipid, not just sugar, from the host.