Kuiper P J
Laboratory of Plant Physiological Research, Agricultural University, Wageningen, The Netherlands.
Plant Physiol. 1969 Jul;44(7):968-72. doi: 10.1104/pp.44.7.968.
This paper describes experiments on Cl transport into the roots, stem and leaves of bean plants, the roots of which have been exposed to lipids in the root solution. Monoand digalactose diglyceride strongly increased Cl transport into all plant parts, probably by transport of the glycolipids further into the plant. Phosphatidyl choline increased Cl absorption by the roots, but transport into the stem and leaves was not affected. This phospholipid was only absorbed by the root tissue. (32)P-glycerophosphoryl choline added to the root solution was readily transported and esterified as phospholipid in all plant parts. This chemical did increase Cl uptake by the roots but Cl accumulation in the leaves was reduced by as much as 40%. Phosphatidyl glycerol, phosphatidyl inositol, and sulfolipid increased Cl transport into roots, stem, and leaves, and a high mobility of (32)P-phosphatidyl glycerol was demonstrated. Generally no significant effect of the above lipids on Na transport in beans and cotton was noted except that monogalactose diglyceride did increase Na transport in cotton.
本文描述了有关氯离子向菜豆植株的根、茎和叶中运输的实验，这些植株的根已接触到根际溶液中的脂质。单半乳糖二甘油酯和双半乳糖二甘油酯极大地增加了氯离子向植株所有部位的运输，这可能是由于糖脂进一步向植物内部运输所致。磷脂酰胆碱增加了根部对氯离子的吸收，但对氯离子向茎和叶中的运输没有影响。这种磷脂仅被根组织吸收。添加到根际溶液中的（32）P-甘油磷酰胆碱易于运输并在植株所有部位酯化为磷脂。这种化学物质确实增加了根部对氯离子的吸收，但叶片中氯离子的积累减少了多达40%。磷脂酰甘油、磷脂酰肌醇和硫脂增加了氯离子向根、茎和叶中的运输，并且证明了（32）P-磷脂酰甘油具有高迁移率。一般而言，除了单半乳糖二甘油酯确实增加了棉花中钠离子的运输外，上述脂质对菜豆和棉花中钠离子的运输没有显著影响。
