Poincelot R P
Department of Biochemistry, The Connecticut Agricultural Experiment Station, New Haven, Connecticut 06504.
Plant Physiol. 1976 Oct;58(4):595-8. doi: 10.1104/pp.58.4.595.
Lipid and fatty acid compositions were determined for chloroplast envelope membranes isolated from spinach (Spinacia oleracea L.), sunflower (Helianthus annuus L.), and maize (Zea mays L.) leaves. The lipid composition was similar in sunflower, spinach, and undifferentiated maize chloroplast envelope membranes and different in maize mesophyll chloroplast envelope membranes. The predominant lipid constituents in all envelope membranes were monogalactosyldiglyceride (27 to 46%), digalactosyldiglyceride (18 to 33%), and phosphatidylcholine (7 to 30%). The fatty acid composition was also similar in sunflower and spinach chloroplast envelope membranes in comparison to those from maize. The major acyl fatty acids of the chloroplast envelope membrane were palmitic (C(16:0), 41 and 36%) and linolenic (C(18:3), 29 and 40%) acids for spinach and sunflower; palmitic (77%) and stearic (C(18:0), 12%) acids for young maize; and palmitic (61%), stearic (14%), and linolenic (13%) acids for mature maize. The differences in lipid and acyl fatty acid compositions among these plants which vary in their rates of net photosynthesis were largely quantitative rather than qualitative.
对从菠菜（菠菜属）、向日葵（向日葵属）和玉米（玉米属）叶片中分离出的叶绿体被膜进行了脂质和脂肪酸成分分析。向日葵、菠菜和未分化的玉米叶绿体被膜中的脂质成分相似，而玉米叶肉叶绿体被膜中的脂质成分则不同。所有被膜中的主要脂质成分是单半乳糖二酰甘油（27%至46%）、二半乳糖二酰甘油（18%至33%）和磷脂酰胆碱（7%至30%）。与玉米的叶绿体被膜相比，向日葵和菠菜的叶绿体被膜中的脂肪酸成分也相似。菠菜和向日葵叶绿体被膜的主要酰基脂肪酸是棕榈酸（C(16:0)，41%和36%）和亚麻酸（C(18:3)，29%和40%）；幼嫩玉米的是棕榈酸（77%）和硬脂酸（C(18:0)，12%）；成熟玉米的是棕榈酸（61%）、硬脂酸（14%）和亚麻酸（13%）。这些植物的净光合速率不同，其脂质和酰基脂肪酸成分的差异主要是数量上的而非质量上的。
