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2. Photoperiod Affects the Phenotype of Mitochondrial Complex I Mutants

Author

Pétriacq, Pierre, de Bont, Linda, Genestout, Lucie, Hao, Jingfang, Laureau, Constance, Florez-Sarasa, Igor, Rzigui, Touhami, Queval, Guillaume, Gilard, Françoise, Mauve, Caroline, Guérard, Florence, Lamothe-Sibold, Marlène, Marion, Jessica, Fresneau, Chantal, Brown, Spencer, Danon, Antoine, Krieger-Liszkay, Anja, Berthomé, Richard, Ribas-Carbo, Miquel, Tcherkez, Guillaume, Cornic, Gabriel, Pineau, Bernard, Gakière, Bertrand, and De Paepe, Rosine

Published
2017

7. Very-Long-Chain Fatty Acids Are Involved in Polar Auxin Transport and Developmental Patterning in Arabidopsis

Author

Roudier, François, Gissot, Lionel, Beaudoin, Frédéric, Haslam, Richard, Michaelson, Louise, Marion, Jessica, Molino, Diana, Lima, Amparo, Bach, Liên, Morin, Halima, Tellier, Frédérique, Palauqui, Jean-Christophe, Bellec, Yannick, Renne, Charlotte, Miquel, Martine, DaCosta, Marco, Vignard, Julien, Rochat, Christine, Markham, Jonathan E., Moreau, Patrick, Napier, Jonathan, and Faure, Jean-Denis

Published
2010

16. Multiscale and multimodal approaches to study autophagy in model plants

Author

UCL - SST/ISV - Institut des sciences de la vie, Marion, Jessica, Le Bars, Romain, Besse, Laetitia, Batoko, Henri, Satiat-Jeunemaitre, Béatrice, UCL - SST/ISV - Institut des sciences de la vie, Marion, Jessica, Le Bars, Romain, Besse, Laetitia, Batoko, Henri, and Satiat-Jeunemaitre, Béatrice

Published
2018

17. Photoperiod Affects the Phenotype of Mitochondrial Complex I Mutants1[OPEN]

Author

Pétriacq, Pierre, de Bont, Linda, Genestout, Lucie, Hao, Jingfang, Laureau, Constance, Florez-Sarasa, Igor, Rzigui, Touhami, Queval, Guillaume, Gilard, Françoise, Mauve, Caroline, Guérard, Florence, Lamothe-Sibold, Marlène, Marion, Jessica, Fresneau, Chantal, Brown, Spencer, Danon, Antoine, Krieger-Liszkay, Anja, Berthomé, Richard, Ribas-Carbo, Miquel, Tcherkez, Guillaume, Cornic, Gabriel, Pineau, Bernard, Gakière, Bertrand, and De Paepe, Rosine

Subjects
endocrine system, Electron Transport Complex I, Light, Arabidopsis Proteins, Nitrogen, Photoperiod, Arabidopsis, Articles, Antioxidants, Carbon, Plant Leaves, Gene Expression Regulation, Plant, Mutation, hormones, hormone substitutes, and hormone antagonists
Abstract

Plant mutants for genes encoding subunits of mitochondrial complex I (CI; NADH:ubiquinone oxidoreductase), the first enzyme of the respiratory chain, display various phenotypes depending on growth conditions. Here, we examined the impact of photoperiod, a major environmental factor controlling plant development, on two Arabidopsis (Arabidopsis thaliana) CI mutants: a new insertion mutant interrupted in both ndufs8.1 and ndufs8.2 genes encoding the NDUFS8 subunit and the previously characterized ndufs4 CI mutant. In the long day (LD) condition, both ndufs8.1 and ndufs8.2 single mutants were indistinguishable from Columbia-0 at phenotypic and biochemical levels, whereas the ndufs8.1 ndufs8.2 double mutant was devoid of detectable holo-CI assembly/activity, showed higher alternative oxidase content/activity, and displayed a growth retardation phenotype similar to that of the ndufs4 mutant. Although growth was more affected in ndufs4 than in ndufs8.1 ndufs8.2 under the short day (SD) condition, both mutants displayed a similar impairment of growth acceleration after transfer to LD compared with the wild type. Untargeted and targeted metabolomics showed that overall metabolism was less responsive to the SD-to-LD transition in mutants than in the wild type. The typical LD acclimation of carbon and nitrogen assimilation as well as redox-related parameters was not observed in ndufs8.1 ndufs8 Similarly, NAD(H) content, which was higher in the SD condition in both mutants than in Columbia-0, did not adjust under LD We propose that altered redox homeostasis and NAD(H) content/redox state control the phenotype of CI mutants and photoperiod acclimation in Arabidopsis.

Published
2016

20. Photoperiod Affects the Phenotype of Mitochondrial Complex I Mutants

Author

Pétriacq, Pierre, primary, de Bont, Linda, additional, Genestout, Lucie, additional, Hao, Jingfang, additional, Laureau, Constance, additional, Florez-Sarasa, Igor, additional, Rzigui, Touhami, additional, Queval, Guillaume, additional, Gilard, Françoise, additional, Mauve, Caroline, additional, Guérard, Florence, additional, Lamothe-Sibold, Marlène, additional, Marion, Jessica, additional, Fresneau, Chantal, additional, Brown, Spencer, additional, Danon, Antoine, additional, Krieger-Liszkay, Anja, additional, Berthomé, Richard, additional, Ribas-Carbo, Miquel, additional, Tcherkez, Guillaume, additional, Cornic, Gabriel, additional, Pineau, Bernard, additional, Gakière, Bertrand, additional, and De Paepe, Rosine, additional

Published
2016
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23. La supplémentation de l'aliment de sevrage en un extrait de colostrum bovin augmente la hauteur des villosités dans le duodénum chez le porcelet sevré

Author

Marion, Jessica, Bebin, K., Thomas, Francoise, Piot, M., Fauquant, Jacques, Louveau, Isabelle, Ganier, Philippe, Thibault, Jean-Noel, Maubois, J.L., Sève, Bernard, Le Huërou-Luron, Isabelle, Le Dividich, Jean, Unité mixte de recherche veau et porc (UMR VP), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure Agronomique de Rennes, UR 0121 Laboratoire de recherche de Technologie Laitière, Institut National de la Recherche Agronomique (INRA), and ProdInra, Migration

Subjects
[SDV] Life Sciences [q-bio], [SDV]Life Sciences [q-bio], [INFO]Computer Science [cs], [INFO] Computer Science [cs], ComputingMilieux_MISCELLANEOUS
Abstract

National audience

Published
2002

24. Effects of weaning at 7d of age and of the level of energy intake on structural changes in the small intestine of piglets

Author

Marion, Jessica, Biernat, M., Savary, G., Thomas, F., Zabielski, R., Le Huërou-Luron, Isabelle, Le Dividich, Jean, Unité mixte de recherche veau et porc (UMR VP), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure Agronomique de Rennes, and ProdInra, Migration

Subjects
[SDV] Life Sciences [q-bio], NIVEAU ALIMENTAIRE, [SDV]Life Sciences [q-bio], [INFO]Computer Science [cs], [INFO] Computer Science [cs], ComputingMilieux_MISCELLANEOUS
Abstract

National audience

Published
2002

25. Utilization of the energy in sow's milk by the piglet

Author

Marion, Jessica, Le Dividich, Jean, Station de recherches porcines, Institut National de la Recherche Agronomique (INRA), and ProdInra, Migration

Subjects
[SDV] Life Sciences [q-bio], [SDV]Life Sciences [q-bio], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
1999

27. Galvestine-1, a novel chemical probe for the study of the glycerolipid homeostasis system in plant cells

Author

Boudière, Laurence, primary, Botté, Cyrille Y., additional, Saidani, Nadia, additional, Lajoie, Mathieu, additional, Marion, Jessica, additional, Bréhélin, Laurent, additional, Yamaryo-Botté, Yoshiki, additional, Satiat-Jeunemaître, Béatrice, additional, Breton, Christelle, additional, Girard-Egrot, Agnès, additional, Bastien, Olivier, additional, Jouhet, Juliette, additional, Falconet, Denis, additional, Block, Maryse A., additional, and Maréchal, Eric, additional

Published
2012
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29. Importance of Cardiolipin Synthase for Mitochondrial Ultrastructure, Respiratory Function, Plant Development, and Stress Responses in Arabidopsis.

Author

Pineau, Bernard, Bourge, Mickaël, Marion, Jessica, Mauve, Caroline, Gilard, Francoise, Maneta-Peyret, Lilly, Moreau, Patrick, Satiat-Jeunemaître, Béatrice, Brown, Spencer C., Paepe, Rosine De, and Danon, Antoine

Subjects
CARDIOLIPIN, PLANT development, KREBS cycle, AMINO acid derivatives, MITOCHONDRIA, MITOCHONDRIAL membranes
Abstract

Cardiolipin (CL) is the signature phospholipid of the mitochondrial inner membrane. In animals and yeast (Saccharomyces cerevisiae), CL depletion affects the stability of respiratory supercomplexes and is thus crucial to the energy metabolism of obligate aerobes. In eukaryotes, the last step of CL synthesis is catalyzed by CARDIOLIPIN SYNTHASE (CLS), encoded by a single-copy gene. Here, we characterize a cls mutant in Arabidopsis thaliana , which is devoid of CL. In contrast to yeast cls , where development is little affected, Arabidopsis   cls seedlings are slow developing under short-day conditions in vitro and die if they are transferred to long-day (LD) conditions. However, when transferred to soil under LD conditions under low light, cls plants can reach the flowering stage, but they are not fertile. The cls mitochondria display abnormal ultrastructure and reduced content of respiratory complex I/complex III supercomplexes. The marked accumulation of tricarboxylic acid cycle derivatives and amino acids demonstrates mitochondrial dysfunction. Mitochondrial and chloroplastic antioxidant transcripts are overexpressed in cls leaves, and cls protoplasts are more sensitive to programmed cell death effectors, UV light, and heat shock. Our results show that CLS is crucial for correct mitochondrial function and development in Arabidopsis under both optimal and stress conditions. [ABSTRACT FROM AUTHOR]

Published
2013
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30. Very-long-chain fatty acids are required for cell plate formation during cytokinesis in Arabidopsis thaliana.

Author

Bach L, Gissot L, Marion J, Tellier F, Moreau P, Satiat-Jeunemaître B, Palauqui JC, Napier JA, and Faure JD

Subjects
Arabidopsis genetics, Arabidopsis growth & development, Arabidopsis Proteins genetics, Arabidopsis Proteins metabolism, Brefeldin A pharmacology, Cell Nucleus Division, Cytoplasmic Vesicles metabolism, Endocytosis, Microscopy, Fluorescence, Mutation, Plant Roots cytology, Plant Roots growth & development, Plant Roots ultrastructure, Qa-SNARE Proteins metabolism, Recombinant Fusion Proteins metabolism, Tubulin metabolism, Arabidopsis cytology, Cytokinesis, Fatty Acids metabolism
Abstract

Acyl chain length is thought to be crucial for biophysical properties of the membrane, in particular during cell division, when active vesicular fusion is necessary. In higher plants, the process of cytokinesis is unique, because the separation of the two daughter cells is carried out by de novo vesicular fusion to generate a laterally expanding cell plate. In Arabidopsis thaliana, very-long-chain fatty acid (VLCFA) depletion caused by a mutation in the microsomal elongase gene PASTICCINO2 (PAS2) or by application of the selective elongase inhibitor flufenacet altered cytokinesis. Cell plate expansion was delayed and the formation of the endomembrane tubular network altered. These defects were associated with specific aggregation of the cell plate markers YFP-Rab-A2a and KNOLLE during cytokinesis. Changes in levels of VLCFA also resulted in modification of endocytosis and sensitivity to brefeldin A. Finally, the cytokinesis impairment in pas2 cells was associated with reduced levels of very long fatty acyl chains in phospholipids. Together, our findings demonstrate that VLCFA-containing lipids are essential for endomembrane dynamics during cytokinesis., (@ 2011. Published by The Company of Biologists Ltd)

Published
2011
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