Pierre‐Henri Jouneau

This study identifies three photoprotective mechanisms in diatoms under light stress: detachment of oxygen-evolving complex proteins, NPQ in the antenna, and energy spillover between photosystems.

This study shows that symbiotic microalgae enhance photosynthetic production and carbon storage within a host, driven by host energetic demands.

This study investigates uranium toxicity in the metal-tolerant microalga Coelastrella sp. PCV using multi-omics and imaging, revealing sequestration mechanisms and gene network rewiring.

The paper investigates the cellular integration and diel remodeling of the nitroplast in Braarudosphaera bigelowii, revealing its structural interactions and dynamic membrane changes.

This paper introduces an in situ cryo-etching method for cryo-ToF-SIMS imaging of Arabidopsis seeds, preserving structural and molecular integrity without chemical treatment or cryo-transfer.

The paper develops a semi-automated workflow using FIB-SEM data and nnU-Net to analyze liver sinusoid fenestration in mice, confirming BMP9's role in LSEC differentiation.

This paper introduces MorphoLearn, an AI framework for 3D FIB-SEM segmentation of diatoms, showing that whole-cell segmentation reveals architectural differences and that transfer learning and contrast-aware strategies improve performance.

This study compares how two Thalassiosira diatom species respond to iron limitation by examining chloroplast-mitochondrial coupling through proteomics and imaging.

FeatureForest uses foundation model embeddings with random forests to enable fast, accurate segmentation of complex biological images with minimal labeling.

This study functionally characterizes PtSeipin in Phaeodactylum tricornutum, revealing unique lipid droplet biogenesis mechanisms in diatoms and highlighting its role in TAG accumulation under stress.

The paper discovers host actin-driven mobility of symbionts in a dinoflagellate-acoel worm symbiosis, revealing previously unknown mechanisms of host-mediated movement.

The paper tracks plastid and mitochondrial integration in a polar planktonic host over months, showing sustained benefits and highlighting a new strategy in plastid symbiosis.

This study combines high lateral and mass resolution ToF-SIMS imaging with multivariate analysis to map subcellular elements and molecules in Sanguina nivaloides, revealing insights into phosphorus homeostasis.

This study shows that DGTS can be produced in seed plants and accumulates in endomembranes, promoting ER expansion without affecting growth or lipid remodeling.

This study identifies a protein shell surrounding diatom pyrenoids that enhances CO2 fixation efficiency and reveals its structural and functional role through in vivo and in vitro analyses.