在Laminaria digitata和L. hyperborea海藻中物种的不同流行率
Andrea Raab1, Dagmar B Stengel2, Jörg Feldmann1
1TESLA-Analytical Chemistry, University of Graz, Universitätsplatz 1, 8010 Graz, Austria.
Marine pollution bulletin
|December 18, 2024
概括
藻类Laminaria digitata种类含有高水平的有毒无机 (iAs),与L. hyperborea不同. 由于潜在的人类和动物健康风险,建议定期监测海藻中的IA.
科学领域:
- 海洋生物学 海洋生物学
- 环境化学环境化学
- 食品安全 食品安全
背景情况:
- 海藻物种,特别是Laminaria digitata,在有毒无机 (iAs) 含量中表现出显著的变化.
- 海藻中的积累对人类和动物健康构成潜在的风险.
- 在形态上相似的鱼种类可能在的物种化上有所不同.
研究的目的:
- 为了比较两个相似的海藻物种中的无机 (iAs) 度:Laminaria digitata和L. hyperborea.
- 为了研究L. digitata和L. hyperborea中的物种化.
- 评估iAs在海藻中的变异性对食品安全的影响.
主要方法:
- 总和物种度的分析,使用高性能液体染色学和诱导联等离子体质谱法 (HPLC-ICPMS).
- 通过使用HPLC-ICPMS和电喷离子离子高分辨率质谱仪 (ESI-HR-MS) 进行与糖的共化检查来确认无机 (iAs) 的识别.
- 使用化物生成的分析方法的验证 ICP-MS.
主要成果:
- 这两种L. digitata和L. hyperborea都显示出高的总度.
- 在L. hyperborea中,只有微量IA (0.363 ± 0.161 mg/kg) 的含量.
- 在L. digitata中,IA度显著更高,构成了大多数物种 (61.6 ± 18.7 mg/kg).
结论:
- 与L. hyperborea.相比,Laminaria digitata积累的有毒无机 (iAs) 度要高得多.
- 在L. digitata中的高和可变的IA含量需要定期监测,特别是用于消费或其他应用的混合物种生物量.
- 检查海藻批次中的IA含量对于减轻与人类和动物毒性相关的风险至关重要.
相关概念视频
Other Algae
588
The group Stramenopiles include some phototrophic microorganisms. Members of this group possess flagella covered in numerous short, hairlike extensions, a feature that inspired the group's name, derived from the Latin words for "straw" and "hair." Some of the main categories of Stramenopiles include diatoms, golden algae, and brown algae.Diatoms are unicellular, photosynthetic eukaryotes, with over 200 known genera. They play a key role in the planktonic communities of both marine and...
588
Diversity of Protists III
2.1K
Rhizaria are a diverse group of unicellular protists characterized by their threadlike cytoplasmic extensions known as pseudopodia. These structures aid in both locomotion and feeding, giving Rhizaria an amoeboid appearance. Their amoeboid morphology once led to taxonomic confusion, but molecular phylogenetics has clarified their evolutionary placement and emphasized their shared use of pseudopodia despite divergent lineages.This clade comprises diverse lineages such as Chlorarachniophyta,...
2.1K
Microbial Mats
59
Microbial communities forming biofilms and mats represent complex, spatially structured ecosystems where metabolic processes are stratified according to light, oxygen, and nutrient gradients. Biofilms are initial colonization stages, only a few millimeters thick, while mature microbial mats can reach centimeter-scale thickness and display intricate vertical organization. Their structural and functional heterogeneity allows microorganisms to occupy distinct ecological niches within a few...
59
Freshwater Microbial Ecology
44
Freshwater systems such as streams, rivers, and lakes exhibit distinct physical and biological characteristics that influence their microbial communities. These environments are broadly categorized into lotic systems—those with flowing waters like streams and most rivers—and lentic systems, which include still or slow-moving waters such as lakes, ponds, and marshes.In lentic systems, phytoplankton drive primary production, generating autochthonous organic carbon. In contrast, lotic...
44


