厦门大学学报（自然科学版）2011，Vol.50Issue(2)：387-401,15.
海洋微型生物碳泵——从微型生物生态过程到碳循环机制效应
Microbial Carbon Pump in the ocean--from Microbial Ecological Process to Carbon Cycle Mechanism
摘要
Abstract
The ubiquitous picoplankton are major components of food webs and thus they play key roles in biogeochemical cycle and energy flow in the marine ecosystem. Thereinto,aerobic anoxygenic phototrophic bacteria (AAPB) is an important functional group with capability of harvesting light energy,and has a particular role in the ocean's carbon cycling. By application of new methods and further innovation of related techniques, and through extensive field investigations in the Chinese coastal wasters and the three Oceans, great data sets have been set up and systemic results have been obtained on microbial processes in the ocean' s carbon and energy flows. The following are the major achievements. 1) We established a new protocol as "time series observation based infrared epifluorescence microscopy" (TIREM) which enabled us to enumerate AAPB accurately; 2) And consequently revealed the wide distribution and unexpected abundance of AAPB in coastal waters (more abundant than in oligotrophic oceanic water which was thought to be the major niche of AAPB) ; 3) Based on the above data sets, a novel model is proposed , where bacteriochlorophyll a induced anoxygenic phototrophy and a proteiorhodopsin based proton pump are included; 4) Furthermore for carbon sequestration below the surface ocean, a conceptual model of microbial carbon pump ( MCP) is proposed, which is in contrast to the well known sinking flux-based biological pump. Overall, these achievements have filled several research banks in China, and lead in the international field of marine microbial ecology.关键词
微型生物/碳循环/好氧不产氧光合异养菌/时间序列红外荧光显微数字化技术/微型生物碳泵Key words
microbes/ carbon cycling / aerobic anoxygenie phototrophic bacteria (AAPB) / time series observation based infrared epifluorescence microscopic (TIREM) / microbial carbon pump ( MCP)分类
生物科学引用本文复制引用
焦念志,郑强,李彦玲,骆庭伟,张瑶,张锐,汤凯,陈峰,曾永辉,张永雨,赵艳琳..海洋微型生物碳泵——从微型生物生态过程到碳循环机制效应[J].厦门大学学报（自然科学版）,2011,50(2):387-401,15.基金项目
国家自然科学基金项目(40632013,40841028,40576063,40232021) （40632013,40841028,40576063,40232021）
国家重点基础研究发展计划(973)项目(2007CB815904) （973）
国际合作重点项目(2003DFD00040) （2003DFD00040）
国家海洋局项目(201105021,DYXM-115-02-4-3) （201105021,DYXM-115-02-4-3）
