7种海洋微藻对UV-B辐射的敏感性差异分析

在实验室条件下研究了UV B辐射对 7种海洋微藻生长的影响 .结果表明 :7种微藻的相对增长率随着UV B辐射剂量的增强呈明显的下降趋势 (P <0 0 5 ) .实验微藻对UV B辐射的敏感性符合绿藻 >硅藻 >金藻的分类学规律 ,其中金藻 870 1是最敏感的一种 .叶绿素a和类胡萝卜素的 48h半数有效抑制浓度EC50 远远大于相对增长率的EC50 .分光光度法测定微藻在UV波段的吸收峰集中在UV C波段 .在UV B波段 ,每 10 4 个细胞的最大吸收度的顺序为 :绿藻 >硅藻 >金藻 .微藻对UV B辐射的敏感性可能与其在该波段的吸收度之间存在一致性关系     

Associations between exposure to different heavy metals and self-reported erectile dysfunction: a population-based study using data from the 2001-2004 National Health and Nutrition Examination Survey

Environmental Science and Pollution Research - Heavy metals are ubiquitous and nonbiodegradable pollutants that are widely distributed in the environment. Heavy metal exposure can damage various...     

Structural Elucidation and Immunostimulatory Activities of Quinoa Non-starch Polysaccharide Before and After Deproteinization

Journal of Polymers and the Environment - Non-starch polysaccharides derived from natural resources play a significant role in the field of food science and human health due to their extensive...     

Farmland transfer and esophageal cancer incidence rate: mediation of pollution-related agricultural input intensity

Environmental Science and Pollution Research - Cancer is a growing global health threat. Examining the determinants of cancer incidence can benefit for cancer treatment and prevention. Farmland...     

Removal of Heavy Metals from Aqueous Solution Using Starch Nanocrystals

Journal of Polymers and the Environment - In this paper, the starch nanocrystals (SNCs) were prepared by enzymatic pre-hydrolysis combined with sulfuric acid hydrolysis and used to remove the heavy...