Institute of Botany, University of Düsseldorf, D-4000 Düsseldorf, West Germany.
Plant Physiol. 1978 Sep;62(3):326-9. doi: 10.1104/pp.62.3.326.
During adaptation of barley (Hordeum vulgare L.) seedlings to extremely high concentrations of sodium chloride in the root space, the content of galactolipids of chloroplast membranes decreased considerably. Alterations in membrane lipids were due to the high concentration of ions rather than to the increase in the water potential. Sodium chloride was accumulated in the leaf cells and affected lipid-synthesizing enzymes such as galactosyl transferase and acylase which are attached to the chloroplast envelope. The return of salt-adapted barley seedlings to a nutrient solution with low salt concentration resulted in a reversal of the observed changes. It is suggested that the decrease in content of galactolipids in biomembranes is one of the factors causing increased salt resistance in barley plants which are adapted to extreme salinity.
在大麦（Hordeum vulgare L.）幼苗适应根际极高浓度氯化钠的过程中，叶绿体膜的半乳糖脂含量显著下降。膜脂的变化是由于高浓度离子的存在，而不是水势的增加。氯化钠在叶细胞中积累，并影响与叶绿体被膜结合的半乳糖基转移酶和酰化酶等脂质合成酶。将适应盐的大麦幼苗返回低盐浓度的营养液中，可使观察到的变化逆转。因此，生物膜中半乳糖脂含量的降低是导致适应极端盐度的大麦植株耐盐性增强的因素之一。
