School of Environment and Energy, South China University of Technology, Guangzhou 510006, China.
School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou, China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, China.
Mar Pollut Bull. 2019 Jul;144:173-180. doi: 10.1016/j.marpolbul.2019.04.049. Epub 2019 May 16.
We investigated how elevated CO affects the responses of Gracilariopsis lemaneiformis and Ulva lactuca to NH enrichments. All algae were incubated under four nutritional conditions (zero addition, 100, 500, and 2500 μM NH), and two CO levels (390 ppm and 1000 ppm). The growth, photosynthesis, and soluble protein contents of both species increased under the eutrophication condition (100 μM NH). However, the growth and carotenoid contents of the two species declined when NH concentration increased. Under the super eutrophication condition (2500 μM NH), all indexes measured in G. lemaneiformis were suppressed, while the growth and photosynthesis in U. lactuca changed indistinctively, both compared with the control. Moreover, under the super eutrophication condition, elevated CO reduced the suppression in the growth of G. lemaneiformis, but decreased the growth of U. lactuca. Nonetheless, G. lemaneiformis displayed much lower growth rates than U. lactuca under the super eutrophication and elevated CO condition.
我们研究了高浓度 CO 如何影响鹅掌菜和浒苔对 NH 富化的响应。所有藻类在四种营养条件（零添加、100、500 和 2500 μM NH）和两种 CO 水平（390 ppm 和 1000 ppm）下进行培养。在富营养化条件（100 μM NH）下，两种物种的生长、光合作用和可溶性蛋白质含量增加。然而，当 NH 浓度增加时，两种物种的生长和类胡萝卜素含量下降。在超富营养化条件（2500 μM NH）下，与对照相比，鹅掌菜的所有测量指标均受到抑制，而浒苔的生长和光合作用变化不明显。此外，在超富营养化条件下，高浓度 CO 降低了鹅掌菜生长的抑制作用，但降低了浒苔的生长。尽管如此，在超富营养化和高 CO 条件下，鹅掌菜的生长速度仍低于浒苔。
