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The influence of methyl jasmonate on the biosynthesis of phospholipids in germinating yellow lupine seeds

机译：茉莉酸甲酯对发黄羽扇豆种子磷脂生物合成的影响

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摘要

This study describes the effect of exogenously applied methyl jasmonate (JA-Me) on the biosynthesis and composition of phospholipids in germinating yellow lupine seeds (cv. Teo). H-3-sodium acetate was used as the phospholipid biosynthesis precursor and JA-Me was added to the incubation mixture at 10(-5), 10(-4) and 10(-3) M concentrations. The embryonic axes of 48-hour seedlings and cotyledons were analysed separately, and seeds germinated in water were used as controls in the investigation of germination capacity and rate analysis. The intensity of phospholipid biosynthesis was dependent on growth regulator concentration. After two days germination, 10(-4) and 10(-3) M JA-Me reduced germination and the level of phospholipids in seedlings, with the exception of phosphatidylserine and phosphatidylglycerol. Phosphatidylcholine (PC) biosynthesis inhibition had a linear correlation with increasing growth regulator concentration, and 10(-3)M JA-Me concentration caused a significant decrease in biosynthesis of phosphatidylinositol, phosphatidylethanolamine, PC and phosphatidic acid in the embryonic axes.
机译：这项研究描述了外用茉莉酸甲酯（JA-Me）对发芽的黄色羽扇豆种子（cv。Teo）的生物合成和磷脂组成的影响。将H-3-乙酸钠用作磷脂的生物合成前体，并将JA-Me以10（-5），10（-4）和10（-3）M的浓度添加到培养混合物中。分别对48小时幼苗和子叶的胚轴进行了分析，并在水中发芽的种子用作对照，以研究发芽能力和发芽率分析。磷脂生物合成的强度取决于生长调节剂的浓度。发芽两天后，除磷脂酰丝氨酸和磷脂酰甘油外，10（-4）和10（-3）M JA-Me减少了种子的发芽和磷脂水平。磷脂酰胆碱（PC）的生物合成抑制与生长调节剂浓度的增加呈线性关系，并且10（-3）M JA-Me浓度导致胚轴中磷脂酰肌醇，磷脂酰乙醇胺，PC和磷脂酸的生物合成显着降低。

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