一种用于解释植物叶片中水的质子核磁共振光谱的理论与模型。
A theory and a model for interpreting the proton nuclear magnetic resonance spectra of water in plant leaves.
作者信息
McCain D C, Markley J L
出版信息
Biophys J. 1985 Nov;48(5):687-94. doi: 10.1016/S0006-3495(85)83826-1.
Abstract
Some plant leaves display complex, orientation-dependent, proton nuclear magnetic resonance (1H NMR) spectra. The spectral patterns vary as the angle between the leaf surface and the applied magnetic field is varied. They also vary with temperature and with the quantity of absorbed manganous ions, but they are independent of magnetic field strength. In this paper, we propose a theory to explain the origin of the spectra and a model from which the patterns can be calculated. The theory shows how heterogeneous magnetic susceptibilities and local dipolar magnetic fields in chloroplasts can shift the water-proton resonance field. The model describes a simplified leaf structure in which the chloroplasts are nonrandomly aligned with respect to the leaf surface. Model calculations are tested by comparison with experimental spectra from hawthorn leaves (Crataegus sp.).
摘要
一些植物叶片呈现出复杂的、依赖于取向的质子核磁共振（1H NMR）光谱。当叶片表面与外加磁场之间的夹角变化时，光谱模式也会改变。它们还会随温度和吸收的锰离子数量而变化，但与磁场强度无关。在本文中，我们提出一种理论来解释光谱的起源，并提出一个可以计算光谱模式的模型。该理论展示了叶绿体中不均匀的磁化率和局部偶极磁场如何使水质子共振场发生偏移。该模型描述了一种简化的叶片结构，其中叶绿体相对于叶片表面呈非随机排列。通过与山楂叶（Crataegus sp.）的实验光谱进行比较，对模型计算进行了检验。
相似文献
1
A theory and a model for interpreting the proton nuclear magnetic resonance spectra of water in plant leaves.一种用于解释植物叶片中水的质子核磁共振光谱的理论与模型。
Biophys J. 1985 Nov;48(5):687-94. doi: 10.1016/S0006-3495(85)83826-1.
2
Some plant leaves have orientation-dependent EPR and NMR spectra.有些植物叶子的电子顺磁共振和核磁共振谱具有取向依赖性。
Proc Natl Acad Sci U S A. 1984 Feb;81(3):748-52. doi: 10.1073/pnas.81.3.748.
3
Nuclear magnetic resonance study of spin relaxation and magnetic field gradients in maple leaves.枫叶中自旋弛豫和磁场梯度的核磁共振研究。
Biophys J. 1995 Sep;69(3):1111-6. doi: 10.1016/S0006-3495(95)79985-4.
4
Proton MAS NMR spectra at high magnetic fields and high spinning frequencies: spectral simulations using floquet theory.高磁场和高自旋频率下的质子魔角旋转核磁共振谱：使用弗洛凯理论的谱模拟
J Magn Reson. 1998 Dec;135(2):418-26. doi: 10.1006/jmre.1998.9998.
5
A nuclear magnetic resonance imaging technique designed for studies of water in plant leaves.
J Struct Biol. 1992 May-Jun;108(3):195-201. doi: 10.1016/1047-8477(92)90019-7.
6
Varied magnetic field, multiple-pulse, and magic-angle spinning proton nuclear magnetic resonance study of muscle water.肌肉水的可变磁场、多脉冲及魔角旋转质子核磁共振研究
Biophys J. 1980 Feb;29(2):229-36. doi: 10.1016/S0006-3495(80)85127-7.
7
Dynamics of phosphate head groups in biomembranes. Comprehensive analysis using phosphorus-31 nuclear magnetic resonance lineshape and relaxation time measurements.生物膜中磷酸头部基团的动力学。利用磷-31核磁共振线形和弛豫时间测量进行的综合分析。
Biophys J. 1992 Jan;61(1):42-57. doi: 10.1016/S0006-3495(92)81814-3.
8
Isotropic susceptibility shift under MAS: the origin of the split water resonances in 1H MAS NMR spectra of cell suspensions.魔角旋转下的各向同性磁化率位移：细胞悬浮液1H魔角旋转核磁共振谱中水分共振分裂的起源。
Magn Reson Med. 2003 Sep;50(3):515-21. doi: 10.1002/mrm.10569.
9
A study of dipolar interactions and dynamic processes of water molecules in tendon by 1H and 2H homonuclear and heteronuclear multiple-quantum-filtered NMR spectroscopy.通过1H和2H同核及异核多量子滤波核磁共振波谱法对肌腱中水分子的偶极相互作用和动态过程进行的研究。
J Magn Reson. 1999 Apr;137(2):295-310. doi: 10.1006/jmre.1998.1681.
10
Low-field nuclear magnetic resonance for the in vivo study of water content in trees.用于树木体内水分含量研究的低场核磁共振技术。
Rev Sci Instrum. 2014 Sep;85(9):095110. doi: 10.1063/1.4895648.
引用本文的文献
1
Chloroplast volume: cell water potential relationships and acclimation of photosynthesis to leaf water deficits.叶绿体体积：细胞水势关系与光合作用对叶片水分亏缺的适应。
Photosynth Res. 1991 Apr;28(1):9-20. doi: 10.1007/BF00027172.
2
In situ investigation of leaf water status by portable unilateral nuclear magnetic resonance.利用便携式单边核磁共振技术对叶片水分状况进行原位研究。
Plant Physiol. 2009 Apr;149(4):1638-47. doi: 10.1104/pp.108.128884. Epub 2009 Feb 4.
3
More manganese accumulates in maple sun leaves than in shade leaves.枫树叶在阳光下比在阴影中的积累更多的锰。
Plant Physiol. 1989 Aug;90(4):1417-21. doi: 10.1104/pp.90.4.1417.
4
Thermal damage to chloroplast envelope membranes.叶绿体被膜的热损伤
Plant Physiol. 1989 Jun;90(2):606-9. doi: 10.1104/pp.90.2.606.
5
Water is allocated differently to chloroplasts in sun and shade leaves.水在阳生叶和阴生叶中的分配方式不同。
Plant Physiol. 1988 Jan;86(1):16-8. doi: 10.1104/pp.86.1.16.
6
Nuclear magnetic resonance study of spin relaxation and magnetic field gradients in maple leaves.枫叶中自旋弛豫和磁场梯度的核磁共振研究。
Biophys J. 1995 Sep;69(3):1111-6. doi: 10.1016/S0006-3495(95)79985-4.
7
Combined effects of light and water stress on chloroplast volume regulation.光照与水分胁迫对叶绿体体积调节的综合影响。
Biophys J. 1995 Sep;69(3):1105-10. doi: 10.1016/S0006-3495(95)79984-2.
8
In vivo study of chloroplast volume regulation.叶绿体体积调节的体内研究。
Biophys J. 1992 May;61(5):1207-12. doi: 10.1016/S0006-3495(92)81930-6.
本文引用的文献
1
Nuclear magnetic resonance of water in cold acclimating red osier dogwood stem.冷驯化红枝山茱萸茎中水分的核磁共振研究
Plant Physiol. 1974 Sep;54(3):392-8. doi: 10.1104/pp.54.3.392.
2
Some plant leaves have orientation-dependent EPR and NMR spectra.有些植物叶子的电子顺磁共振和核磁共振谱具有取向依赖性。
Proc Natl Acad Sci U S A. 1984 Feb;81(3):748-52. doi: 10.1073/pnas.81.3.748.
3
Topology of NH2OH induced Mn(II) release from chloroplast thylakoid membranes.羟胺诱导叶绿体类囊体膜释放锰离子（Mn(II)）的拓扑结构。
Biochim Biophys Acta. 1981 Jul;636(2):144-52. doi: 10.1016/0005-2728(81)90087-6.
4
Magnetic field induced orientation of photosynthetic systems.磁场诱导光合系统的取向
Biochim Biophys Acta. 1972 Apr 20;267(1):65-79. doi: 10.1016/0005-2728(72)90138-7.
5
Orientation of pigments and structural proteins in the photosynthetic membrane of spinach chloroplasts: a linear dichroism study.菠菜叶绿体光合膜中色素和结构蛋白的取向：线性二色性研究
Biochim Biophys Acta. 1973 Jul 26;314(1):42-56. doi: 10.1016/0005-2728(73)90062-5.
6
Water permeability of chloroplast envelope membranes. In vivo measurement by saturation-transfer NMR.
FEBS Lett. 1985 Apr 22;183(2):353-8. doi: 10.1016/0014-5793(85)80809-7.
7
Theory of fluorescence polarization in magnetically oriented photosynthetic systems.磁取向光合系统中的荧光偏振理论。
Biophys J. 1978 Dec;24(3):689-712. doi: 10.1016/S0006-3495(78)85414-9.
8
The NMR studies of water in biological systems.生物系统中水的核磁共振研究。
Prog Biophys Mol Biol. 1979;35(2):103-34. doi: 10.1016/0079-6107(80)90004-8.
Zotero 插件