The Endosymbiotic Coral Algae Symbiodiniaceae Are Sensitive to a Sensory Pollutant: Artificial Light at Night, ALAN.
The Endosymbiotic Coral Algae Symbiodiniaceae Are Sensitive to a Sensory Pollutant: Artificial Light at Night, ALAN.
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DOI：
10.3389/fphys.2021.695083
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发表时间：
2021
影响因子：
4
通讯作者：
Levy O
中科院分区：
文献类型：
--
作者：
Ayalon I;Benichou JIC;Avisar D;Levy O
夜间人造光（Artificial Light at Night，ALAN）是生物多样性保护中的一个主要新兴问题，它会对陆地和海洋环境产生负面影响。因此，在城市发展战略规划中应予以认真考虑。虽然大部分研究都是关于陆地生物的，但只有少数研究集中在海洋环境中。为了确定ALAN是否影响珊瑚礁共生藻类，这是可持续珊瑚礁的基础，我们进行了为期一个月的短期实验，用LED灯照射来自Cladocopia（以前的Clade C）和Durusdinium（以前的Clade D）属的分离的共生藻科细胞培养物。细胞培养物每晚暴露于0.15 μ mol quanta m-2 s-1（104 - 5 lux）的ALAN水平，具有三种光谱：蓝色、黄色和白色。我们的研究结果表明，即使在非常低水平的光在夜间，光生理的藻类的电子传递速率（ETR），非光化学猝灭，（NPQ），总叶绿素和减数分裂指数提出显着较低的值下ALAN，主要是，但不完全是，在Cladocopia细胞培养。研究结果还表明，不同类型的共生藻科植物在ALAN下具有不同的光生理和光合性能。我们相信，我们的研究结果敲响了警钟，可能的有害影响，越来越多的感官污染物，阿兰，共生珊瑚的生态生理。这项研究的结果指出，ALAN对海洋生态系统中的其他生物，如鱼类，浮游动物和浮游植物，其中它们的生物节律是由自然光和暗周期夹带的潜在影响。
Artificial Light at Night, ALAN, is a major emerging issue in biodiversity conservation, which can negatively impact both terrestrial and marine environments. Therefore, it should be taken into serious consideration in strategic planning for urban development. While the lion’s share of research has dealt with terrestrial organisms, only a handful of studies have focused on the marine milieu. To determine if ALAN impacts the coral reef symbiotic algae, that are fundamental for sustainable coral reefs, we conducted a short experiment over a period of one-month by illuminating isolated Symbiodiniaceae cell cultures from the genera Cladocopium (formerly Clade C) and Durusdinium (formerly Clade D) with LED light. Cell cultures were exposed nightly to ALAN levels of 0.15 μmol quanta m–2 s–1 (∼4–5 lux) with three light spectra: blue, yellow and white. Our findings showed that even in very low levels of light at night, the photo-physiology of the algae’s Electron Transport Rate (ETR), Non-Photochemical Quenching, (NPQ), total chlorophyll, and meiotic index presented significantly lower values under ALAN, primarily, but not exclusively, in Cladocopium cell cultures. The findings also showed that diverse Symbiodiniaceae types have different photo-physiology and photosynthesis performances under ALAN. We believe that our results sound an alarm for the probable detrimental effects of an increasing sensory pollutant, ALAN, on the eco-physiology of symbiotic corals. The results of this study point to the potential effects of ALAN on other organisms in marine ecosystem such as fish, zooplankton, and phytoplankton in which their biorhythms is entrained by natural light and dark cycles.
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影响因子：
11.6
作者：
Davies TW;Bennie J;Inger R;de Ibarra NH;Gaston KJ
通讯作者：
Gaston KJ
影响因子：
4.5
作者：
Baquiran JIP;Nada MAL;Campos CLD;Sayco SLG;Cabaitan PC;Rosenberg Y;Ayalon I;Levy O;Conaco C
通讯作者：
Conaco C
影响因子：
9.2
作者：
Ayalon, Inbal;Rosenberg, Yaeli;Levy, Oren
通讯作者：
Levy, Oren
影响因子：
3.5
作者：
Harriott, V.J.
通讯作者：
Harriott, V.J.
影响因子：
4.9
作者：
Frade, P. R.;De Jongh, F.;Bak, R. P. M.
通讯作者：
Bak, R. P. M.