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首页> 外文期刊>Journal of the Hattori Botanical Laboratory >Physiological and lipid composition changes in lichens due to acute gamma radiation
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Physiological and lipid composition changes in lichens due to acute gamma radiation

机译:急性伽玛射线辐射导致地衣的生理和脂质组成变化

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摘要

The influence of acute gamma radiation on three physiological characteristics and the lipid and fatty acid composition in Peltigera aphthosa and Hypogymnia physodes was investigated. Photosynthetic intensity in P. aphthosa decreased with increasing radiation dose. Respiratory intensity, membrane permeability and composition of individual lipids in both lichen species appeared to be relatively stable after radiation doses of 100 and 1000 Gy. A dose of 10000 Gy decreased the respiratory intensity, caused damage to cell membranes and considerable changes in lipid composition. As far as fatty acids concerned, gamma radiation stimulated their desaturation.
机译:研究了急性伽玛射线辐照对紫花苜蓿和低潮性植物的三种生理特性以及脂质和脂肪酸组成的影响。随着辐射剂量的增加,无疫假单胞菌的光合强度降低。在100和1000 Gy的辐射剂量后,两种地衣物种的呼吸强度,膜通透性和单个脂质的组成似乎相对稳定。 10000 Gy的剂量会降低呼吸强度,导致细胞膜受损以及脂质组成发生明显变化。就脂肪酸而言,γ射线刺激了它们的去饱和作用。

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