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为了发掘团头鲂对锌(Zn)敏感的代谢标志物,以3种Zn含量分别为7.4、32.1和332.4 mg/kg的半纯化饲料(分别标记为L、M和H组),喂养初始体质量为(3.6±0.1) g团头鲂12周,应用1H(氢谱)核磁共振波谱法(1H NMR)检测团头鲂血清代谢物的种类和浓度,再用最小二乘法判别(PLS-DA)和变量重要性(VIP)分析3个处理团头鲂血清的代谢轮廓和主要差异代谢物。结果显示,血清中5...
为了从代谢组角度系统揭示奶牛分娩后能量缺乏的生理机制,采用1H-NMR 代谢组学技术,结合多元统计学方法探讨了奶牛分娩后不同阶段血浆小分子代谢物的变化趋势及其对能量代谢通路的影响。结果表明:奶牛分娩后第7天与分娩第1天之间血浆代谢轮廓无明显差异;分娩后第14天与第1天之间血浆代谢轮廓出现明显差异,其差异标志物为不饱和脂肪酸、胆碱和氧化三甲胺;分娩后第28天与第1天之间血浆代谢轮廓也存在明显差异,其...
Cold- or Heat-Tolerance of Leaves and Roots in Perennial Ryegrass Determined by 1H-NMR
Arrhenius plots Cold stress Dynamic states of water Heat stress NMR relaxation times (T1,T2) Organ Perennial ryegrass Water compartment
2009/7/28
Dynamic states of water in the leaves and roots of perennial ryegrass (Lolium perenne L.) exposed to cold and heat stresses were studied by using 1H-NMR. NMR spin-lattice relaxation times (T1) of leav...