硅对马铃薯试管苗生长及其细胞壁形成的影响  

Effect of Silicon on the Growth of Testtube Potato Plantlets and the Cell Wall Formation

作　　者：房江育[1] 马雪泷[1] 

机构地区：[1]黄山学院生物多样性研究所,安徽黄山245021

出　　处：《作物学报》2006年第1期152-154,共3页Acta Agronomica Sinica

基　　金：国家自然科学基金项目(30170185);安徽省教育厅自然科学基金项目(2005KJ398ZC)

摘　　要：以马铃薯大西洋品种为材料,MS为基本培养基,研究硅对马铃薯组培苗生长及其细胞壁组成的影响。结果表明,植株株高、干、鲜重、生根数和根长随着硅浓度的提高而显著增加,以添加5 mmol/L硅酸效果较好;束缚水与自由水之比上升;叶绿素增多,呼吸作用减慢;细胞壁提取率显著增高,细胞壁中纤维素含量显著上升,螯合剂提取果胶含量显著下降。During the investigation of the acceleration effect of silicon on the growth of potato, silicate acid was added to the medium of the plantlet cultured in the test-tube. The results showed that under the treatment of silicon, the shoots were taller and weighted more and roots more and longer. The better result came from 5 mmol/L silicate acid. The ratio of bound water to free water was increased, the chlorophyll content enhanced, the respiration rate decreased significantly, the cell wall extraction rate significantly increased, the cellulose content increased and the pectin separated with chelating agent decreased by the silicon treatment.

关 键 词：硅 马铃薯 试管苗 生长 细胞壁 

分 类 号：S532[农业科学—作物学]