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首页> 外文期刊>Russian Journal of Plant Physiology >The effect of seasonal shifts in temperature on the lipid composition of marine macrophytes
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The effect of seasonal shifts in temperature on the lipid composition of marine macrophytes

机译：温度的季节性变化对海洋大型植物脂质组成的影响

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摘要

The comparative study of lipid composition was carried out in four species of marine algae, Ahnfeltia tobuchiensis, Laminaria japonica, Sargassum pallidum, and Ulva fenestrata, as well as a higher plant grass wrack (Zostera marina). Plants were collected in the Japan Sea in spring at 2.9 and 5.5degreesC and in summer at 23degreesC. The main lipid components of membranes were determined, and the general patterns of the ratio of phospholipids (PL), glycolipids (GL), betaine (BL), and neutral (NL) lipids were discerned. The relative content of NL in all species (except A. tobuchiensis) was higher in summer. The level of triacylglycerols was as high as 18-37%. The content of individual classes of PL and GL varied between the spring and summer samples, the relative content of PL being higher in spring. In most species, the ratio of PL to GL decreased in summer. The content of free sterols did not depend on the season. The molar ratios of phosphatidylcholine and diacylolycerol-o-(hydroxymethyl)-(N,N,N-trimethyl)homoserine to free sterols varied from 0.9 to 1.7. The seasonal changes of lipid composition were apparently related to macrophyte adaptation to water temperature and to biology of their development.
机译：比较了四种藻类中脂类成分的含量，它们分别是Ahnfeltia tobuchiensis，Laminaria japonica，Sargassum pallidum和Ulva fenestrata，以及一种高等植物的草皮杂物（Zostera marina）。春季在2.9和5.5摄氏度下在日本海中收集植物，夏季在23摄氏度在夏季中收集植物。确定了膜的主要脂质成分，并确定了磷脂（PL），糖脂（GL），甜菜碱（BL）和中性（NL）脂质比率的一般模式。夏季，所有物种（不包括A. tobuchiensis）中NL的相对含量较高。三酰基甘油的水平高达18-37％。春季和夏季样品之间PL和GL的各个类别的含量有所不同，春季PL的相对含量较高。在大多数物种中，夏季PL与GL的比例下降。游离甾醇的含量与季节无关。磷脂酰胆碱和二酰基甘油-邻-（羟甲基）-（N，N，N-三甲基）高丝氨酸与游离甾醇的摩尔比为0.9至1.7。脂质组成的季节性变化显然与大型植物对水温的适应性及其发育生物学有关。

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