The first contribution of Roland Douce was the characterization of cardiolipin, the major lipid of the mitochondrial membrane of plants and animals, as
phosphatidyl ethanolamine. He then considerably improved the methods of purification of chloroplasts and mitochondria, and obtained the first envelope preparations. He was the first to show that the chloroplast shell is the site of biosynthesis of
galactolipids and in particular MGDG,
monogalactosyldiacylglycerol. With his team, he characterized the
lipid and
protein components of the envelope of the
plastids. He succeeded in separating the inner and outer shells. This work paved the way for a detailed analysis of the chloroplast, its envelopes and functions. Several of the envelope protein genes were cloned, including the
MGDG synthase gene. Similar work was carried out on the mitochondria with the development of a purification method. It was thus be possible to carry out functional analysis, in particular of the proteins involved in photorespiration and the subunits of the
glycine-decarboxylase complex. Chloroplasts and mitochondria are involved in the biosynthesis of several
amino acids and
vitamins. Roland Douce, in collaboration with industry, elucidated the biosynthesis pathways of several amino acids, and thus defined several potential targets for
herbicide molecules. Similarly, he elucidated the biosynthesis pathways of
biotin and
tetrahydrofolic acid (vitamin B12). The last part of Roland Douce's work deals with plant metabolism, under normal physiological conditions, or under conditions of stress (nutrient deficiency, light or heat stress). In this work, he greatly contributed to promoting the use of nuclear magnetic resonance in plant physiology. Roland Douce was passionate about the mountains and he made a major contribution to renovating and developing the botanical garden of the
Col du Lautaret, and to setting up a research laboratory there, associated with the University of Grenoble. He was the author or coordinator of several books or reports on plant mitochondria, the plant world, transgenic plants, and hypotheses on the origin of life. He also coordinated two volumes of the Advances in Botanical Research series on vitamin biosynthesis.
Awards • 1982: Silver medal from the National Centre for Scientific Research (
CNRS) • 1990: Correspondent of the
Academie des Sciences, Paris • 1992-2002: Senior member of the
Institut Universitaire de France (IUF) • 1996: Member of the Academie des Sciences, Paris, Integrative Biology Section • 1995: Foreign Correspondent Award of the American Society of Plant Biologists (ASPB) • 1997: Member of the
National Academy of Sciences (USA) • 2001: Elected Senior Scientist at Oxford University, United Kingdom. • 2003: Officier of the
Ordre national du Mérite • 2009: Officier of the
Légion d’Honneur, France • 2009: Fellow of the American Society of Plant Biologists (ASPB) • 2013: Lifetime Achievement Award for Photosynthesis of the Rebeiz Foundation, USA • 2015: Commandeur of the Ordre national du Mérite, France ==Personal life==