英语翻译At low temperatures plant membranes undergotransition fr

来源：学生作业帮编辑：神马作文网作业帮分类：英语作业时间：2024/09/26 03:19:15

英语翻译
At low temperatures plant membranes undergo
transition from a liquid crystalline to a gel-like phase
with reduced fluidity and ion leakage and deactivation
of membrane proteins occurs.Observations
suggest that saturated phosphatidylglycerol (PG)
content in chloroplast membranes may be related to
the phase transition temperature and thus related to
the low-temperature adaptability of plants (Iba 2002).
The temperature of the phase transition in chillingsensitive
plants is higher than the phase transitiontemperature for chilling-resistant plants which suggests
an association with the level of fatty acid
saturation of PG in plastid membranes.In chilling
resistant plants the amount of PG with saturated fatty
acids (16:0,18:0) is less than 20%,but chilling
sensitive plants contain 40% or more saturated PG.

在低温下植物细胞膜从液态晶体过渡到凝胶状态,伴随着出现流动性的降低,离子泄漏和膜蛋白的钝化.观测建议如下：饱和磷脂酰甘油（ PG ）在叶绿体膜内的含量可能与这个阶段的转变温度有关,并且与植物的低温适应性有关（伊拜2002）.
对寒冷敏感的植物过渡阶段的温度是高于耐冷植物的过渡阶段的温度的,建议结合在质体膜中的饱和磷脂酰甘油其中的饱和脂肪酸的水平.在耐冷植物中,饱和磷脂酰甘油（含有饱和脂肪酸16:0, 18:0）的数量是少于20%,对寒冷敏感的植物含有40%或者更多的饱和磷脂酰甘油.

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