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A synthetic chimeric gene, TBI-HBS, encoding the immunogenic ENV and GAG epitopes of human immunodeficiency virus (HIV-1) and the surface protein antigen (HBsAg) of hepatitis B virus (HBV), was expressed in tomato plants. Tomato fruits containing the TBI-HBS antigen were fed to experimental mice and, on days 14 and 28 post-feeding, high levels of HIV- and(More)
The fatty acid composition of vacuolar membrane lipids from plant storage tissues and their genesis have been studied. A high content of unsaturated fatty acids (up to 77%) was observed in lipids of these membranes. Linoleic acid prevailed in vacuolar lipids of carrot and red beet (54.2 and 44.2%, respectively). Linolenic acid prevailed in vacuolar lipids(More)
The structure of the vacuolar membrane (tonoplast) was studied in red beet roots by IR spectroscopy. The vacuolar membrane was shown to be composed of highly ordered lipids which form regions of free liquid lipid bilayer loosely bound to integral proteins. The prevalence of polar lipids in the tonoplast is responsible for the high elasticity and fluidity of(More)