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Ultrastructure of macromolecular assemblies contributing to bacterial spore resistance revealed by in situ cryo-electron tomography

Bacterial endospores are among the most resilient forms of life. Here, authors reveal ultrastructural details of the spore chromosome and the multiprotein, multilayered extracellular coat, shedding light on mechanisms contributing to spore resistance.

Elda Bauda
Benoit Gallet
Cecile Morlot
ResearchOpen Access14 Feb 2024
Nature Communications

Volume: 15, P: 1-12
Morphological bases of phytoplankton energy management and physiological responses unveiled by 3D subcellular imaging

Phytoplankton account for a large proportion of global primary production and comprise a number of phylogenetically distinct lineages. Here, Uwizeye et al. use FIB-SEM to study ultrastructural plasticity of 7 distinct taxa and describe how subcellular organisation is linked to energy metabolism.

Clarisse Uwizeye
Johan Decelle
Giovanni Finazzi
ResearchOpen Access16 Feb 2021
Nature Communications

Volume: 12, P: 1-12
Adaptive traits of cysts of the snow alga Sanguina nivaloides unveiled by 3D subcellular imaging

Sanguina nivaloides thrives in red snowfields worldwide. It cannot be cultivated. Using environmental samples, 3D electron microscopy combined with functional analyzes revealed unique cell architecture features adapted to life in a snowy environment.

Jade A. Ezzedine
Clarisse Uwizeye
Eric Maréchal
ResearchOpen Access18 Nov 2023
Nature Communications

Volume: 14, P: 1-17
Mechanical stress driven by rigidity sensing governs epithelial stability

On soft substrates, epithelial tissues are under high tension and form holes that spontaneously heal. Thus, mechanical stress directly impacts the integrity of epithelia.

Surabhi Sonam
Lakshmi Balasubramaniam
Benoît Ladoux
Research28 Nov 2022
Nature Physics

Volume: 19, P: 132-141
The AAA+ ATPase RavA and its binding partner ViaA modulate E. coli aminoglycoside sensitivity through interaction with the inner membrane

Membrane lipid composition is a key factor for bacterial stress adaptation. Here, authors show that ViaA and AAA+ ATPase RavA, alter lipid composition and modulate E. coli aminoglycoside sensitivity.

Jan Felix
Ladislav Bumba
Irina Gutsche
ResearchOpen Access20 Sept 2022
Nature Communications

Volume: 13, P: 1-14
Plastid thylakoid architecture optimizes photosynthesis in diatoms

Phytoplankton and plant plastids have distinct evolutionary origins and membrane organization. Here Floriet al. show that diatom photosynthetic complexes spatially segregate into interconnected subdomains within loose thylakoid stacks enabling fast diffusion of electron carriers and efficient photosynthesis

Serena Flori
Pierre-Henri Jouneau
Giovanni Finazzi
ResearchOpen Access20 Jun 2017
Nature Communications

Volume: 8, P: 1-9
Investigating the nature of active forces in tissues reveals how contractile cells can form extensile monolayers

It is now revealed, using cell cultures and in silico models, that weakening intercellular contacts is a fundamental process essential for switching from extensile to contractile tissue behaviour.

Lakshmi Balasubramaniam
Amin Doostmohammadi
Benoît Ladoux
Research18 Feb 2021
Nature Materials

Volume: 20, P: 1156-1166
Pseudomonas aeruginosa Exolysin promotes bacterial growth in lungs, alveolar damage and bacterial dissemination

Stéphanie Bouillot
Patrick Munro
Philippe Huber
ResearchOpen Access18 May 2017
Scientific Reports

Volume: 7, P: 1-11
Intracellular development and impact of a marine eukaryotic parasite on its zombified microalgal host

Johan Decelle
Ehsan Kayal
Laure Guillou
ResearchOpen Access08 Jul 2022
The ISME Journal

Volume: 16, P: 2348-2359
The cell wall hydrolase Pmp23 is important for assembly and stability of the division ring in Streptococcus pneumoniae

Maxime Jacq
Christopher Arthaud
Cecile Morlot
ResearchOpen Access15 May 2018
Scientific Reports

Volume: 8, P: 1-14
Pre-irradiation of mouse mammary gland stimulates cancer cell migration and development of lung metastases

G Bouchard
G Bouvette
B Paquette
ResearchOpen Access03 Sept 2013
British Journal of Cancer

Volume: 109, P: 1829-1838

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Ultrastructure of macromolecular assemblies contributing to bacterial spore resistance revealed by in situ cryo-electron tomography

Morphological bases of phytoplankton energy management and physiological responses unveiled by 3D subcellular imaging

Adaptive traits of cysts of the snow alga Sanguina nivaloides unveiled by 3D subcellular imaging

Mechanical stress driven by rigidity sensing governs epithelial stability

The AAA+ ATPase RavA and its binding partner ViaA modulate E. coli aminoglycoside sensitivity through interaction with the inner membrane

Plastid thylakoid architecture optimizes photosynthesis in diatoms

Investigating the nature of active forces in tissues reveals how contractile cells can form extensile monolayers

Pseudomonas aeruginosa Exolysin promotes bacterial growth in lungs, alveolar damage and bacterial dissemination

Intracellular development and impact of a marine eukaryotic parasite on its zombified microalgal host

The cell wall hydrolase Pmp23 is important for assembly and stability of the division ring in Streptococcus pneumoniae

Pre-irradiation of mouse mammary gland stimulates cancer cell migration and development of lung metastases

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