Water-soluble ethylene-binding proteins of the cotton plant: Isolation and functional activity

A protein possessing a high affinity for ethylene has been isolated from cottonplant shoots by hydrophobic chromatography on Polikhrom-1 and gel chromatography on TSK gel HW-50F. A number of proofs of the receptor nature of the protein isolated are given.S. Sadykov Institute of Bioorganic Chemistry, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax 627071. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 92–96, January–February, 1994.     

Water-soluble polysaccharides of seeds of the genusGleditsia

The water-soluble polysaccharides of the seeds of eight species of Gleditsia have been isolated and studied. They are galactomannans with different viscosities, specific rotations, and ratios of galactose and mannose. A study of their chemical transformations and IR spectral data has shown that the monosaccharide residues are pyranoses linked by β-1-4-glycosidic bonds having in the second componentD-galactose with the α-configuration of the glycosidic center and the most probable chair conformation of the pyranose ring. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 727–730, November–December, 1998.     

A comparative study of the histones of some varieties of cotton plant

Tetraploid varieties of the cotton plant belonging to the medium- and thin-fibered types have been studied with respect to their histone/DNA ratio, their content of histone fractions, and the amino acid composition of the total histones. It has been shown that these varieties differ with respect to their contents of the lysine-rich histone fraction Hl, and also by the amounts of certain amino acids in the total histone.V. I. Nikitin Institute of Chemistry, Academy of Sciences of the TadzhSSR, Dushanbe. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 99–102, January–February, 1985.     

Phospholipids of the seeds of experimental varieties of kenaf

Phospholipids of the seeds of kenaf of the variety Opytnyi-1931 are similar with respect to their set of components and the qualitative composition of the fatty acids of homogeneous classes to the phospholipids of the variety Opytnyi-1972, but differ with respect to the amounts of individual acids. The fatty-acid composition of the lysophosphatidylcholines and lysophosphatidylinositols of experimental varieties of kenaf seeds have been studied for the first time.Institute of the Chemistry of Plant Substances of the Academy of Sciences of the Uzbekh SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 158–160, March–April, 1986.     

Protein content, activity and amino acid composition of proteinase inhibitors of seeds of some varieties of pea and their hybrids

The results are given of a study of the quantitative content of protein in the seeds of some pea varieties and mutants, the activity of the total inhibitor proteins, and correlations of their activity with the protein content of the seeds and the amino acid compositions of the proteinase inhibitors. Considerable differences have been found in the amounts of a number of amino acids of the protein inhibitors of parental varieties and mutants of the pea, the amounts of serine, glutamic acid, alanine, and valine correlating positively with the inhibitor activity.Institute of Plant Physiology and Biophysics, Tadzhik SSR Academy of Sciences, Dushanbe. V. I. Nikitin Institute of Chemistry, Tadzhik SSR Academy of Sciences, Dushanbe. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 399–404, May–June, 1988.