Differences of S-glycoprotein Content in the Styles among Pear Cultivars Differing in Self incompatible Strength Material basis of cytotoxicity in polysaccharide from Solanum nigrum Purification and identification of rice soluble glycoproteins Differences of S-glycoprotein Content in the Styles among Pear Cultivars Differing in Self incompatible Strength Material basis of cytotoxicity in polysaccharide from Solanum nigrum GUS Activities Under Control of HRGP Promoter of Carrot System isolation and purification of Isatidis Radix polysaccharides and determination of their compositions Isolation of Glycoproteins from Verticillium dahliae and Their Phytotoxicity Further Studies of Pollen Wall Glycoproteins in Cucurbita pepo L.