文献类型： 外文期刊
作者： Wang, Yitao 1 ; Xu, Dong 1 ; Ma, Jian 1 ; Zhang, Xiaowen 1 ; Fan, Xiao 1 ; Zhang, Yan 1 ; Wang, Wei 1 ; Sun, Ke 1 ; Ye, Naih 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Fisheries Sci & Food Prod Proc, Qingdao, Peoples R China
关键词： Chlorophyta; Elevated CO2; Growth; Photosynthesis; Nitrate uptake rate
期刊名称：JOURNAL OF APPLIED PHYCOLOGY （ 影响因子：3.215； 五年影响因子：3.612 ）
ISSN： 0921-8971
年卷期： 2021 年 33 卷 6 期
页码：
收录情况： SCI
摘要： Human activities and the resulting global climate change have profound effects on ecosystems, and economic and social systems, including those dependent on the ocean. Increasing concentrations of atmospheric CO2 have led to gradual changes in the marine carbonate system. It is well known that environmental changes determine the composition and abundance of algal populations. In the present study, we evaluated the growth, photosynthesis, nutrient uptake rates, tissue C and N content, nitrate reductase activity, and nitrate transporter gene expression of Ulva prolifera, Ulva linza, and Ulva compressa exposed to 400, 1000, and 2000 ppm CO2 levels after one life cycle culture. Elevated CO2 promoted the rapid propagation of three Ulva species, which can result in the formation of a green tide. This was due to enhanced photosynthetic and respiration efficiency, reductions in energy requirements for biosynthesis and metabolism for maintaining external pH, and promotion of NO3- uptake by increased NO3- gene expression level and NO3- reductase activity.
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