镉离子对向日葵（Helianthus annuus L.）种子脂质成分的影响。

The effect of Cd2+ on lipid components of sunflower (Helianthus annuus L.) seeds.

作者信息

Aggarwal M, Luthra Y P, Arora S K

机构信息

Department of Chemistry and Biochemistry, Haryana Agricultural University, Hisar, India.

出版信息

Plant Foods Hum Nutr. 1995 Feb;47(2):149-55. doi: 10.1007/BF01089264.

DOI:10.1007/BF01089264

PMID:7792263

Abstract

The effect of seven levels of Cd2+ viz. 0, 10, 20, 30, 40, 60 and 80 ppm (micrograms/g soil) supplied as cadmium chloride, on lipid components of sunflower seeds was studied in a pot experiment. The total and neutral lipids decreased while polar lipids (phospho and glycolipids) increased with the increasing levels of Cd2+. Oleic acid and linoleic acids were the major fatty acids in the total, polar and neutral lipid fractions. Oleic acid generally increased while linoleic acid decreased in all the lipid fractions with Cd2+ levels. The neutral lipid fraction had higher levels of palmitic, palmitoleic, stearic and oleic acid as compared to the total and polar lipid fractions. The plant dry weight and seed yield decreased whereas cadmium concentration in seeds increased consistently with increasing Cd2+ levels.

摘要

通过盆栽试验研究了以氯化镉形式提供的七个镉离子（Cd2+）水平，即0、10、20、30、40、60和80 ppm（微克/克土壤）对向日葵种子脂质成分的影响。随着Cd2+水平的增加，总脂质和中性脂质减少，而极性脂质（磷脂和糖脂）增加。油酸和亚油酸是总脂质、极性脂质和中性脂质组分中的主要脂肪酸。随着Cd2+水平的增加，所有脂质组分中的油酸通常增加，而亚油酸减少。与总脂质和极性脂质组分相比，中性脂质组分中棕榈酸、棕榈油酸、硬脂酸和油酸的含量更高。随着Cd2+水平的增加，植物干重和种子产量下降，而种子中的镉浓度持续增加。