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Study on patterns and chemical features of NO effect on marine phytoplankton growth

查看全文 作　　者：ZHANG Zhengbin LIN Cai LIU Chunying XING Lei WU Zhenzhen SUN [1]Feng 高影响力作者 机构地区：[1]Institute of Marine Chemistry,Ocean University of China,Qingdao 266003,China Institute of Marine Chemistry,Ocean University of China,Qingdao 266003,China Institute of Marine Chemistry,Ocean University of China,Qingdao 266003,China Institute of Marine Chemistry,Ocean University of China,Qingdao 266003,China Institute of Marine Chemistry,Ocean University of China,Qingdao 266003,China Institute of Marine Chemistry,Ocean University of China,Qingdao 266003,China高影响力机构 出　　处：《Science China Chemistry》索引2005年第48卷第4期,共9页高影响力期刊 基　　金：the National Natural Science Foundation of China(Grant No.40076020);National Basic Research Priorit ies Program(973)(Grant No.2001CB409703); the Research Fund for the Doctoral Program for Higher Educat ion(Grant No.20030423007). 摘　　要：This article discusses the patterns of NO effect on marine phytoplankton growth from chemical perspective.The experimental results of four algae,which are Platymonas hal-golandica var.tsingtaoensis,Platymonas subcordiformis,Skeletonema costatum and Nitzschia closterium farma minutissima,are as follows:(i) In f/2 medium or f/50 medium,the growth of these four algae was obviously promoted or inhibited when nitric oxide of different concentrations was added once or twice each day during the cultivation;(ii) The NO effects on the growth of marine phytoplankton are in normal distribution.Different phytoplankton has different optimum NO concentration,which is consistent with the influence of NO on the growth of high plants;(iii) The effect of NO on Platymonas halgolandica var.tsingtaoensi,which is a food alga,is different from that on the red tide algae Skeletonema costatum and Nitzschia closterium farma minutis-sima.The authors put forward a new opinion that every alga has its own NO threshold concen-tration.All the above results may provide new clues to understand the formation of red tide. 关 键 词：nitric oxide (NO), MARINE phytoplankton (red TIDE ALGAE and food algae), optimum NO concentration, NO threshold concentration, influencing patterns.
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