M
Marie-Hélène Avelange-Macherel
Researcher at Institut national de la recherche agronomique
Publications - 17
Citations - 1069
Marie-Hélène Avelange-Macherel is an academic researcher from Institut national de la recherche agronomique. The author has contributed to research in topics: Late embryogenesis abundant proteins & Desiccation tolerance. The author has an hindex of 10, co-authored 16 publications receiving 956 citations. Previous affiliations of Marie-Hélène Avelange-Macherel include Agrocampus Ouest & University of Angers.
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Journal ArticleDOI
Identification in Pea Seed Mitochondria of a Late-Embryogenesis Abundant Protein Able to Protect Enzymes from Drying
Johann Grelet,Abdelilah Benamar,Emeline Teyssier,Marie-Hélène Avelange-Macherel,Didier Grunwald,David Macherel +5 more
TL;DR: The overall results constitute, to the authors' knowledge, the first characterization of a LEA protein in mitochondria and experimental evidence for a beneficial role of aLEA protein with respect to proteins during desiccation.
Journal ArticleDOI
Structure and Function of a Mitochondrial Late Embryogenesis Abundant Protein Are Revealed by Desiccation
Dimitri Tolleter,Michel Jaquinod,Cécile Mangavel,Catherine Passirani,Patrick Saulnier,Stephen Manon,Emeline Teyssier,Nicole Payet,Marie-Hélène Avelange-Macherel,David Macherel +9 more
TL;DR: It is shown that LEAM, a mitochondrial LEA protein expressed in seeds, is a natively unfolded protein, which reversibly folds into α-helices upon desiccation, and sequence analyses of several homologous proteins suggest a similar protection mechanism likely acts with other types of cellular membranes.
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The Ubiquitous Distribution of Late Embryogenesis Abundant Proteins across Cell Compartments in Arabidopsis Offers Tailored Protection against Abiotic Stress
Adrien Candat,Adrien Candat,Gaël Paszkiewicz,Martine Neveu,Romain Gautier,David C. Logan,Marie-Hélène Avelange-Macherel,David Macherel +7 more
TL;DR: The broad subcellular distribution of LEA proteins highlights the requirement for each cellular compartment to be provided with protective mechanisms to cope with desiccation or cold stress.
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Nitrite-nitric oxide control of mitochondrial respiration at the frontier of anoxia.
Abdelilah Benamar,Hardy Rolletschek,Ljudmilla Borisjuk,Marie-Hélène Avelange-Macherel,Gilles Curien,H. Ahmed Mostefai,Ramaroson Andriantsitohaina,David Macherel +7 more
TL;DR: This work describes here a mechanism by which mitochondrial respiration is adjusted to prevent a tissue to reach anoxia, and suggests an evolutionarily conserved mechanism should have an important role for oxygen homeostasis in tissues undergoing hypoxia.
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Site-directed mutagenesis of histidine residues in the Δ12 acyl-lipid desaturase of Synechocystis
TL;DR: Results demonstrate that the five histidine residues are essential for the activity of the Δ12 desaturase, perhaps by providing the ligands for the catalytic Fe center.