Interactive effects of nitrogen and light on growth rates and RUBISCO content of small and large centric diatoms
Li, G; Campbell, DA; dcampbell@mta.ca
2017
发表期刊PHOTOSYNTHESIS RESEARCH
卷号131期号:1页码:93-103
摘要Among marine phytoplankton groups, diatoms span the widest range of cell size, with resulting effects upon their nitrogen uptake, photosynthesis and growth responses to light. We grew two strains of marine centric diatoms differing by similar to 4 orders of magnitude in cell biovolume in high (enriched artificial seawater with similar to 500 A mu mol L-1 A mu mol L-1 NO3 (-)) and lower-nitrogen (enriched artificial seawater with < 10 A mu mol L-1 NO3 (-)) media, across a range of growth light levels. Nitrogen and total protein per cell decreased with increasing growth light in both species when grown under the lower-nitrogen media. Cells growing under lower-nitrogen media increased their cellular allocation to RUBISCO and their rate of electron transport away from PSII, for the smaller diatom under low growth light and for the larger diatom across the range of growth lights. The smaller coastal diatom Thalassiosira pseudonana is able to exploit high nitrogen in growth media by up-regulating growth rate, but the same high-nitrogen growth media inhibits growth of the larger diatom species.
部门归属[Li, Gang; Campbell, Douglas A.] Mt Allison Univ, Dept Biol, Sackville, NB E4L 1G7, Canada; [Li, Gang] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China
关键词Cell Size Chlorophyll Phytoplankton Nitrogen Metabolism Rubisco Thalassiosira Pseudonana Thalassiosira Punctigera
资助项目LMB
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/16211
专题中科院海洋生物资源可持续利用重点实验室
通讯作者dcampbell@mta.ca
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Li, G,Campbell, DA,dcampbell@mta.ca. Interactive effects of nitrogen and light on growth rates and RUBISCO content of small and large centric diatoms[J]. PHOTOSYNTHESIS RESEARCH,2017,131(1):93-103.
APA Li, G,Campbell, DA,&dcampbell@mta.ca.(2017).Interactive effects of nitrogen and light on growth rates and RUBISCO content of small and large centric diatoms.PHOTOSYNTHESIS RESEARCH,131(1),93-103.
MLA Li, G,et al."Interactive effects of nitrogen and light on growth rates and RUBISCO content of small and large centric diatoms".PHOTOSYNTHESIS RESEARCH 131.1(2017):93-103.
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