环境因素对红藻苏氏肉棒藻总砷积累的影响
The Effect of Environmental Factors on Total Arsenic Accumulation in Sarcodia suiae, Rhodophyta.
作者信息
Lee Meng-Chou, Libatique Mary Joy Halog, Yeh Siao-Yu
机构信息
Department of Aquaculture, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung, 20224, Taiwan.
Center of Excellence for Ocean Engineering, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung, 20224, Taiwan.
出版信息
Bull Environ Contam Toxicol. 2019 Mar;102(3):385-390. doi: 10.1007/s00128-018-2520-4. Epub 2018 Dec 15.
Little is known about the effects of environmental factors on total arsenic (TAs) accumulation in marine Rhodophyta. The effects of five environmental factors (temperature, light intensity, pH, exposure duration, and phosphate) at various As(III) concentrations were investigated in Sarcodia suiae. The highest TAs accumulations were recorded at 25°C, a luminance of 80 µmol photons m s, and a pH of 8. TAs uptake increased significantly over time. However, a higher phosphate concentration reduced TAs accumulation. These data show that the extent of TAs accumulation depends on various environmental factors. Hence, our results suggest a potential in arsenic recovery process in wastewater treatments. S. suiae may provide a new means of reducing levels of arsenic in contaminated water and may be used as a potential Rhodophyta model for investigating other types of heavy metal pollution in future.
关于环境因素对海洋红藻中总砷（TAs）积累的影响，目前所知甚少。在苏氏肉棒藻中研究了不同As(III)浓度下五种环境因素（温度、光照强度、pH值、暴露时间和磷酸盐）的影响。在25°C、80 μmol光子·m⁻²·s⁻¹的光照强度和pH值为8的条件下，记录到最高的TAs积累量。随着时间的推移，TAs的吸收显著增加。然而，较高的磷酸盐浓度会降低TAs的积累。这些数据表明，TAs积累的程度取决于各种环境因素。因此，我们的结果表明在废水处理的砷回收过程中有潜力。苏氏肉棒藻可能提供一种降低污染水中砷含量的新方法，并可能在未来用作研究其他类型重金属污染的潜在红藻模型。
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