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Concept

Pyrénoïde

Publications associées (13)

Identification of Chlamydomonas Central Core Centriolar Proteins Reveals a Role for Human WDR90 in Ciliogenesis

Pierre Gönczy, Romain Hamelin, Coralie Busso, Paul Guichard, Florence Armand, Virginie Hamel

Centrioles are evolutionarily conserved macromolecular structures that are fundamental to form cilia, flagella, and centrosomes. Centrioles are 9-fold symmetrical microtubule-based cylindrical barrels comprising three regions that can be clearly distinguis ...

2017

Fine-Scale Skeletal Banding Can Distinguish Symbiotic from Asymbiotic Species among Modern and Fossil Scleractinian Corals

Anders Meibom, Jaroslaw Hubert Stolarski

Understanding the evolution of scleractinian corals on geological timescales is key to predict how modern reef ecosystems will react to changing environmental conditions in the future. Important to such efforts has been the development of several skeleton- ...

Public Library Science2016

Multiscattering-enhanced optical biosensor: multiplexed, non-invasive and continuous measurements of cellular processes

Olivier Martin, Christian Santschi, Volodymyr Koman

The continuous measurement of uptake or release of biomarkers provides invaluable information for understanding and monitoring the metabolism of cells. In this work, a multiscattering-enhanced optical biosensor for the multiplexed, non-invasive, and contin ...

Optical Soc Amer2015

Linking toxicity and adaptive responses across the transcriptome, proteome, and phenotype of Chlamydomonas reinhardtii exposed to silver

Kristin Schirmer

Understanding mechanistic and cellular events underlying a toxicological outcome allows the prediction of impact of environmental stressors to organisms living in different habitats. A systems-based approach aids in characterizing molecular events, and the ...

National Academy of Sciences2014

Plastidic type I signal peptidase 1 is a redox-dependent thylakoidal processing peptidase

Jieping Zhu

Thylakoids are the photosynthetic membranes in chloroplasts and cyanobacteria. The aqueous phase inside the thylakoid known as the thylakoid lumen plays an essential role in the photosynthetic electron transport. The presence and significance of thiol-disu ...

Wiley-Blackwell2014

Caenorhabditis elegans centriolar protein SAS-6 forms a spiral that is consistent with imparting a ninefold symmetry

Pierre Gönczy, Paul Guichard, Georgios Hatzopoulos, Virginie Hamel

Centrioles are evolutionary conserved organelles that give rise to cilia and flagella as well as centrosomes. Centrioles display a characteristic ninefold symmetry imposed by the spindle assembly abnormal protein 6 (SAS-6) family. SAS-6 from Chlamydomonas ...

2013

Sensing the dynamics of oxidative stress using enhanced absorption in protein-loaded random media

Olivier Martin, Christian Santschi, Vera Slaveykova-Startcheva, Guillaume Suarez

Reactive oxygen species play a key role in cell signalling and oxidative stress mechanisms, therefore, sensing their production by living organisms is of fundamental interest. Here we describe a novel biosensing method for extracellular detection of endoge ...

Nature Publishing Group2013

Scleractinian coral cell proliferation is reduced in primary culture of suspended multicellular aggregates compared to polyps

Anders Meibom, Shirit Cohen, Isabelle Domart-Coulon, Stéphanie Kéren Cohen, Agathe Eliette Marie Lecointe

Cell cultures from reef-building scleractinian corals are being developed to study the response of these ecologically important organisms to environmental stress and diseases. Despite the importance of cell division to support propagation, cell proliferati ...

Springer2013

Multiple-endpoint assay provides a detailed mechanistic view of responses to herbicide exposure in Chlamydomonas reinhardtii

Kristin Schirmer

The release of herbicides into the aquatic environment raises concerns about potential detrimental effects on ecologically important non-target species, such as unicellular algae, necessitating ecotoxicological risk assessment. Algal toxicity tests based o ...

2012

Cell-wall-dependent effect of carboxyl-CdSe/ZnS quantum dots on lead and copper availability to green microalgae

Vera Slaveykova-Startcheva, Miguel Garcia

The present study examines the effect of carboxyl-CdSe/ZnS quantum dots (QDs) on Cu and PI) availability to microalgae with different cell wall characteristics: Chlorella kesslerii possessing a cellulosic cell wall and two strains of Chlamydomonas reinhard ...

2012

Non-stomatal limitations of photosynthesis in grassland species under artificial drought in the field

Constant Signarbieux

As drought stress is expected to occur more frequently in future climate in central Europe, survival and productivity of grassland species are an important issue. Non-stomatal limitation processes related to the drought-stress inhibition of photosynthesis ...

Elsevier2011

New antiplasmodial natural products from cyanobacteria: linking their ecological role to their therapeutic potential

Karl Gademann, Cyril Portmann

Cyanobacteria (blue-green algae) produce many metabolites that are directed towards competing photoautotrophs. Such algicidal compounds might offer new approaches for the selective inhibition of the malaria parasite, Plasmodium falciparum, as this organism ...

2009

An ultra-thin PDMS membrane as a bio/micro-nano interface: fabrication and characterization

Melody Swartz

We report a method for making ultra-thin PDMS membrane devices. Freely suspended membranes as thin as 70 nm have been fabricated. Bulging tests were performed with a custom built fluidic cell to characterize large circular membranes. The fluidic cell allow ...

Springer Verlag2007