Methylation-fragmentation analyses were conducted on a series of extra-cellular, yeast alpha-D-linked mannans representing six different structural types. D-Mannans of low degree of branching were produced by Hansenula capsulata strains and by species related to H. holstii, The former consisted primarily of (1 leads to 2)- and (1 leads to 6)-linked D-mannosyl residues; the latter, of (1 leads t...

A method for the quantitative analysis of molecular species of 1,2-diacylglycerol acetates (1,2-DGAC) containing polyunsaturated fatty acids is described. Phosphatidylethanolamine (PE) isolated from frog retina was used to test the method. PE was converted to 1,2-DGAC by acetolysis. The molecular species of the 1,2-DGAC were resolved by reverse-phase high performance liquid chromatography (HPLC...

A soil microorganism, designated Arfhrobacfer GJM-1, has been isolated which is capable of growing on Saccharomyces cerevisiae mannan as the carbon source. When grown on mannan, the microorganism secretes an a-mannosidase into the cultural medium. The enzyme is not found when mannose, glucose, or glycerol is substituted for mannan, but is present when oligosaccharides obtained by acetolysis of ...

A soil microorganism, designated Arfhrobacfer GJM-1, has been isolated which is capable of growing on Saccharomyces cerevisiae mannan as the carbon source. When grown on mannan, the microorganism secretes an a-mannosidase into the cultural medium. The enzyme is not found when mannose, glucose, or glycerol is substituted for mannan, but is present when oligosaccharides obtained by acetolysis of ...

The mannans of Saccharomyces chevalieri, S. italicus, S. diastaticus, and S. carlsbergensis, were acetolyzed, and the fragments were separated by gel filtration. All gave similar acetolysis fingerprints, which were distinguished from S. cerevisiae by the presence of a pentasaccharide component in addition to the mono-, di-, tri-, and tetrasaccharides. All oligosaccharide fragments were composed...

This paper presents the study of a tricolporate pollen morphology 08 Caesalpiniaceae medicinal plant taxa viz. Bauhinia purpurea L., Caesalpinia pulcherrima( L.) SW.,Cassia fistula Delonix regia (Hook.) Raf., Peltophorum pterocarpum (DC.) K.Heyne., Senna auriculata S. sophera (L.), Roxb. and Tamarindus indica L. The flower buds these plants were collected from blocked category Cyberabad area i....