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采用抗寒性强的宜昌橙(Citrus ichangensis)、抗寒性中等的本地早(Citrusreticulata)和抗寒性弱的 Verna 柠檬(Citrus limon)的叶片为试材.分析其叶片总磷脂、可溶性蛋白质以及各种磷脂含量与柑桔抗寒性的关系.结果表明:柑桔叶片总磷脂含量、磷脂与蛋白质的比值与抗寒性呈正相关.磷脂酰胆碱(PC),磷脂酰丝氨酸(PS).磷脂酰甘油(PG)的含量与抗寒性呈显著正相关,溶血磷脂酰胆碱(LPC),磷脂酰乙醇胺(PE)和磷脂酸(PA)的含量与抗寒性呈显著负相关.而磷脂酰肌醇(PI)和双磷脂酰甘油(DPG)与抗寒性相关不显著.由此说明用叶片磷脂含量可以鉴定柑桔抗寒性的强弱.
Citrus ichangensis, cold-resistant native Citrus reticulata and cold hardiness Citrus limon were used as materials to analyze their leaf total phospholipid, soluble protein and The results showed that there was a positive correlation between total phospholipid content, phospholipid and protein ratio and cold resistance in citrus leaves, phosphatidylcholine (PC) and phosphatidylserine (PS). The content of phosphatidylglycerol (PG) was significantly and positively correlated with the cold resistance, and the contents of lysophosphatidylcholine (LPC), phosphatidylethanolamine (PE) and phosphatidic acid (PA) were negatively correlated with the cold resistance Phosphatidylinositol (PI) and diphosphatidylglycerol (DPG) were not significantly correlated with cold resistance, indicating that the leaf phospholipid content can identify the strength of the cold tolerance of citrus.