Тектоника и генеративный дизайн

Genetic dissection of the lipid bilayer composition provides essential in vivo evidence for the role of individual lipid species in membrane function. To understand the in vivo role of the anionic phospholipid, phosphatidylglycerol, the loss-of-function mutation was identified and characterized in the Arabidopsis thaliana gene coding for phosphatidylglycerophosphate synthase 1, PGP1. This mutation resulted in pigment-deficient plants of the xantha type in which the biogenesis of thylakoid membranes was severely compromised. The PGP1 gene coded for a precursor polypeptide that was targeted in vivo to both plastids and mitochondria. The activity of the plastidial PGP1 isoform was essential for the biosynthesis of phosphatidylglycerol in chloroplasts, whereas the mitochondrial PGP1 isoform was redundant for the accumulation of phosphatidylglycerol and its derivative cardiolipin in plant mitochondrial membranes. Together with findings in cyanobacteria, these data demonstrated that anionic phospholipids play an important, evolutionarily conserved role in the biogenesis and function of the photosynthetic machinery. In addition, mutant analysis suggested that in higher plants, mitochondria, unlike plastids, could import phosphatidylglycerol from the endoplasmic reticulum

Reaumur dans la Mayenne

Davy de Virville A. Reaumur dans la Mayenne. In: Revue d'histoire des sciences et de leurs applications, tome 11, n°1, 1958. Réaumur (1683-1757) pp. 81-82

Excursion du 11 juillet 1920 à Saint-Pierre-La-Cour, étang de Paintourteau et Vitré

National audienc

Translocation de protons couplee au transfert des electrons dans la chaine respiratoire des mitochondries vegetales

Available from INIST (FR), Document Supply Service, under shelf-number : T 78114 / INIST-CNRS - Institut de l'Information Scientifique et TechniqueSIGLEFRFranc

De l'influence des idées préconçues sur les progrès de la botanique du XVe au XVIIIe siècle

Davy de Virville A. De l'influence des idées préconçues sur les progrès de la botanique du XVe au XVIIIe siècle . In: Revue d'histoire des sciences et de leurs applications, tome 10, n°2, 1957. pp. 110-119

Réaumur botaniste

Davy de Virville A. Réaumur botaniste . In: Revue d'histoire des sciences et de leurs applications, tome 11, n°2, 1958. pp. 134-137