标题：Use of cyanobacterial polysaccharides to promote shrub performances in desert soils: a potential approach for the restoration of desertified areas

作者：Xu,Yanhong;Rossi,Federico;Colica,Giovanni;Deng,Songqiang;De Philippis,Roberto;Chen,Lanzhou

来源出版物：BIOLOGY AND FERTILITY OF SOILS 卷：49 期：2 页：143-152 出版年：FEB 2013

摘要：The importance of cyanobacterial polysaccharides of biological soil crusts in sand surface stabilization and soil nutrient retention has been long acknowledged. However, the role of cyanobacterial polysaccharides as a source of nutrition to vascular plants in crusted areas is ignored. In this study, the chemical composition of the polysaccharide synthesized by Phormidium tenue and the effects of its presence on seed germination and seedling metabolism of the shrub Caragana korshinskii were investigated. The crude polysaccharide synthesized by P. tenue was composed of 15 % protein and 58 % carbohydrate and showed the presence of 12 different types of monosaccharides. The addition of the polysaccharide significantly (P