Composition of the phospholipids of Gossypium barbadense

Summary 1. The combined phospholipids of the seed kernels of the cotton plant have been completely freed from accompanying carbohydrates by gel filtration on Molselekt G-25.2. It has been established by two-dimensional chromatography in a thin layer of silica gel that the phospholipids of the seed kernels of the cotton plant of thin-fibered variety 5904-I consist of X₁- and X₂-polygly cerophosphatides (2.4 and 7.1%, respectively), phosphatidylethanolamines (14.1%), phosphatidylcholines (50.4%), phosphatidylinositols (20.4%), and lysophosphatidylcholines (5.6%).3. The accompanying substances of the phospholipids of the cotton plant form two groups each of steroids and disaccharides.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 19–21, January–February, 1976.     

Minor phospholipids of the cotton plant of variety 159-F

Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, Vol. 6, pp. 847–848, November–December, 1989.     

The chemical study of the main phospholipids of the seed kernels of cotton plants of the speciesGossypium barbadense

The qualitative and quantitative compositions and also the general and position distributions of the fatty acids of the seeds of the thin-fibered varieties of the cotton plant S-6022, S-6015, S-6034, S-6037, and 9123-I have been studied.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 291–294, May–June, 1984.     

Isolation of the phospholipids of the cotton plant and their composition

Summary The yields of the free and bound lipids of the seed kernels of cotton plants of varieties S-4727 and S-6029 have been determined by their successive treatment with selective solvent, and the total and fractional proportions of lipid phosphorus have been found.The phospholipids have been solated and their group composition has been determined; it has been established that the main components are phosphatidylcholines, phosphatidylinositols, and phosphatidylethanolamines, while polyglycerophosphatides, lysophosphatidylcholines, and unidentified polar phospholipid are present in small amounts.The fatty-acid compositions of the free and bound lipids and phospholipids have been studied.Institute of the Chemistry of Plant Substances, Academy of the Uzbek SSR. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 449–453, July–August, 1975.     

N-acylated phospholipids and lysophospholipids of wilt-resistant varieties of the cotton plant

Summary The minor phospholipids of the seeds of cotton plants of varieties Tashkent-1, Tashkent-2, and Tashkent-3 have been isolated and studied. The position distribution of the fatty acids in the N-acylphosphatidylethanolamines has been established.On the basis of the results of a chemical study and also of NMR spectroscopy, it is suggested that the N-acyllysophosphatidylethanolamines are 2-acylglycerophosphoryl-N-acylethanolamines, and that the lysophosphatidylcholines are 2-acylglycerophosphorylcholines.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 8–11, January–February, 1979.     

Flavonol glycosides of the flowers of a thin-leaved cotton plant of the species Gossypium barbadense

Summary The flowers of the thin-leaved cotton plant of variety 5904-I(Gossypium barbadense) contained more than 5% of combined flavonols consisting of quercimeritrin, hisutrin, quercetin 3-glucoside, and a flavonol with mp 228–229°C. The latter has the structure of gossypetin 7--D-glucopyranoside.Scientific-Research Institute for the Chemistry and Technology of Cotton Cellulose, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 142–146, March, 1971.     

An investigation of the structure of the phospholipids of the cotton plant of variety Tashkent-2

Summary 1. The fatty-acid compositions of the total phospholipids of the seed kernels of the cotton plant of variety Tashkent-2, after the elimination of carbohydrates, and of their main components have been studied.2. It has been found that at 37–38°C the time of enzymatic hydrolysis is considerably shortened.3. A study of the products of acid and enzymatic hydrolysis has shown the structure of the individual phospholipids.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 145–148, March–April, 1976.