Christophe Grangeasse

Symbiosis through lysis: host-triggered prophage induction drives probiotic function in Lactiplantibacillus plantarum

This study shows that prophage induction in Lactiplantibacillus plantarum releases extracellular vesicles that support host growth during nutritional stress.

A DltE-DltD-DltX interaction network regulates lipoteichoic acid D-alanylation in Lactiplantibacillus plantarum and symbiotic drosophila growth promotion

The paper identifies an interaction network involving DltD, DltX, and DltE that regulates LTA D-alanylation in L. plantarum, which promotes Drosophila growth.

Teichoic acids in the periplasm and cell envelope of Streptococcus pneumoniae

This paper investigates the role of teichoic acids in maintaining the periplasmic space in Streptococcus pneumoniae using cryo-electron microscopy and metabolic labeling, revealing new insights into TA composition and function.

A local composition of peptidoglycan drives the division site selection by MapZ in Streptococcus pneumoniae

The paper shows that MapZ in Streptococcus pneumoniae identifies the division site by recognizing a specific peptidoglycan composition formed during early cell division, independent of chromosome segregation.

Characterization of a GpsB-associated regulator of PBP1a reveals the organization of the cell wall remodeling complex of Streptococcus pneumoniae

This study identifies GarP as a regulator of PBP1a activity in S. pneumoniae, revealing its role in coordinating cell wall remodeling during cell division.

Molecular dissection of the chromosome partitioning protein RocS and regulation by phosphorylation

This study investigates the molecular mechanisms of RocS, a chromosome segregation protein in Streptococcus pneumoniae, revealing its domains and phosphorylation regulation.

DivIVA controls the dynamics of septum splitting and cell elongation in Streptococcus pneumoniae

This paper investigates DivIVA's role in Streptococcus pneumoniae cell division and elongation using microscopy and modeling, revealing its control over septum cleavage and peptidoglycan synthesis.