Lycium barbarum polysaccharides (LBP) were obtained after Lycium barbarum, the study object, went through chloroform-methanol degreasing, water extraction and alcohol precipitation, acetone and ether wash and dry, h...Lycium barbarum polysaccharides (LBP) were obtained after Lycium barbarum, the study object, went through chloroform-methanol degreasing, water extraction and alcohol precipitation, acetone and ether wash and dry, hydrogen peroxide bleaching, deproteinization by savage method. Determined LBP molecular weight by HPLC was 73950-138090Da. And the monosaccharides in LBP determined by IC mainly included glucose, arabinose, rhamnose, galactose, xylose and mannose, in which glucose, arabinose and galactose had larger contents, while the contents of other monosaccharides were low.展开更多
基于同位素标记相对和绝对定量(isobaric tags for relative and absolute quantity,iTRAQ)技术,以采自宁夏中宁的“宁杞1号”枸杞果实为样品,以采自新疆精河、内蒙古乌拉特前旗、甘肃瓜州和青海德令哈的“宁杞1号”枸杞果实为对照,进...基于同位素标记相对和绝对定量(isobaric tags for relative and absolute quantity,iTRAQ)技术,以采自宁夏中宁的“宁杞1号”枸杞果实为样品,以采自新疆精河、内蒙古乌拉特前旗、甘肃瓜州和青海德令哈的“宁杞1号”枸杞果实为对照,进行差异蛋白组学的生物信息学分析。结果表明,新疆/宁夏组、内蒙古/宁夏组、甘肃/宁夏组和青海/宁夏组分别有446,166,966个和1015个差异表达蛋白(DEPs),与枸杞多糖合成代谢相关的DEPs共160个。进一步筛选得到23个与枸杞多糖相关DEPs,包括蔗糖磷酸合成酶、β-葡萄糖苷酶和α-半乳糖苷酶等。推测采自不同产地的枸杞果实的多糖合成代谢差异通路主要包括蔗糖、纤维素、半乳聚糖、半纤维素和果胶合成代谢过程,且这些过程均可通过UDP-葡萄糖链接在一起。通过蛋白组学分析枸杞多糖合成途径上的相关蛋白,为深入研究不同产地同种枸杞多糖调控机制提供理论参考。展开更多
基金Supported by the Self-development Project of Ningxia Academy of Agriculture and Forestry Sciences(NKYJ-13-06)~~
文摘Lycium barbarum polysaccharides (LBP) were obtained after Lycium barbarum, the study object, went through chloroform-methanol degreasing, water extraction and alcohol precipitation, acetone and ether wash and dry, hydrogen peroxide bleaching, deproteinization by savage method. Determined LBP molecular weight by HPLC was 73950-138090Da. And the monosaccharides in LBP determined by IC mainly included glucose, arabinose, rhamnose, galactose, xylose and mannose, in which glucose, arabinose and galactose had larger contents, while the contents of other monosaccharides were low.
文摘基于同位素标记相对和绝对定量(isobaric tags for relative and absolute quantity,iTRAQ)技术,以采自宁夏中宁的“宁杞1号”枸杞果实为样品,以采自新疆精河、内蒙古乌拉特前旗、甘肃瓜州和青海德令哈的“宁杞1号”枸杞果实为对照,进行差异蛋白组学的生物信息学分析。结果表明,新疆/宁夏组、内蒙古/宁夏组、甘肃/宁夏组和青海/宁夏组分别有446,166,966个和1015个差异表达蛋白(DEPs),与枸杞多糖合成代谢相关的DEPs共160个。进一步筛选得到23个与枸杞多糖相关DEPs,包括蔗糖磷酸合成酶、β-葡萄糖苷酶和α-半乳糖苷酶等。推测采自不同产地的枸杞果实的多糖合成代谢差异通路主要包括蔗糖、纤维素、半乳聚糖、半纤维素和果胶合成代谢过程,且这些过程均可通过UDP-葡萄糖链接在一起。通过蛋白组学分析枸杞多糖合成途径上的相关蛋白,为深入研究不同产地同种枸杞多糖调控机制提供理论参考。