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Biosynthesis and accumulation of sterols.
- P. Benveniste
- BiologyAnnual review of plant biology
- 29 April 2004
The results essentially confirm data obtained previously with sterol biosynthesis inhibitors (SBIs) and enable the precise dissection of biosynthetic pathways.
Expression in yeast and tobacco of plant cDNAs encoding acyl CoA:diacylglycerol acyltransferase.
- P. Bouvier-Navé, P. Benveniste, P. Oelkers, S. Sturley, H. Schaller
- Biology, Computer ScienceEuropean journal of biochemistry
Light-microscopy observations of leaf epidermis cells, stained with a lipid-specific dye, showed the presence of lipid droplets in the cells of triacylglycerol-overproducer plants, thus illustrating the potential application of acyl CoA:diacyl glycerol acyltransferase-transformed plants.
The ratio of campesterol to sitosterol that modulates growth in Arabidopsis is controlled by STEROL METHYLTRANSFERASE 2;1.
- A. Schaeffer, R. Bronner, P. Benveniste, H. Schaller
- BiologyThe Plant journal : for cell and molecular…
- 1 March 2001
SMT2;1 has a crucial role in balancing the ratio of campesterol to sitosterol in order to fit both growth requirements and membrane integrity, indicating specific sterol requirements to promote normal development.
Expression of the Hevea brasiliensis (H.B.K.) Mull. Arg. 3-Hydroxy-3-Methylglutaryl-Coenzyme A Reductase 1 in Tobacco Results in Sterol Overproduction
Transgenic lines showed an increase in the level of total sterols up to 6-fold, probably because of an increased expression level of hmg1 mRNA and a corresponding increased enzymatic activity for HMGR, which strongly support the conclusion that plant HMGR is a key limiting enzyme in phytosterol biosynthesis.
- P. Benveniste
- MedicineThe arabidopsis book
Two families of sterol methyltransferases are involved in the first and the second methylation steps of plant sterol biosynthesis.
- P. Bouvier-Navé, T. Husselstein, P. Benveniste
- Chemistry, BiologyEuropean journal of biochemistry
- 15 August 1998
Comparisons of two cDNAs isolated from Nicotiana tabacum reveal the coexistence, in a given plant species, of two distinct SMTs, each catalyzing one step of methylation in the sterol biosynthesis pathway.
Transformation of Saccharomyces cerevisiae with a cDNA encoding a sterol C‐methyltransferase from Arabidopsis thaliana results in the synthesis of 24‐ethyl sterols
Differential effects of plant sterols on water permeability and on acyl chain ordering of soybean phosphatidylcholine bilayers.
- I. Schuler, A. Milon, M. A. Hartman
- BiologyProceedings of the National Academy of Sciences…
- 15 August 1991
The results show that sitosterol and stigmasterol, two major 24-ethylsterols differing only by the absence or presence of the Delta22 double bond in the side chain, probably play different roles in regulating plant membrane properties; they also may explain why 9beta,19-cyclopropylsterols behave as good surrogates ofSitosterol.
UDP-glucose sterol beta-D-glucosyltransferase, a plasma membrane-bound enzyme of plants: enzymatic properties and lipid dependence.
Cellular Sterol Ester Synthesis in Plants Is Performed by an Enzyme (Phospholipid:Sterol Acyltransferase) Different from the Yeast and Mammalian Acyl-CoA:Sterol Acyltransferases*
The AtPSAT is the only intracellular enzyme found so far that catalyzes an acyl-CoA-independent sterol ester formation and has a similar physiological function in plant cells as the unrelated acyl -CoA:sterol acyltransferase has in animal cells.