| 摘要: |
| 于1992年8月 - 1993年5月，运用生物抑制剂方法和14C, 15N同位素示踪方法研究胶州湾表层水中小于200 μm的浮游生物群落中原核生物和真核生物对初级生产力的贡献，以及在硝态氮（NO3--N）、氨态氮（NH4+-N）和氨基酸氮（AA－N）吸收中的作用。结果表明，原核生物在总初级生产力中占有相当比重（16.38％ - 41.00％）．NO3--N主要由真核生物所吸收（64.86％ - 87.28％），而NH4+-N和AA－N则主要由原核生物所吸收（分别占总吸收量的47.61％ - 71.28％和48.15％ - 80.54％）。 |
| 关键词: 原核生物 真核生物 初级生产力 氮吸收 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助，39200022号 |
附件 |
|
| THE ROLES OF PROKARYOTE AND EUKARYOTE IN MARINE PRIMARY PRODUCTION PROCESSES |
|
Jiao Nianzhi, Wang Rong, Li Chaolun, Ji Peng
|
|
Institute of Occanology. Academia Sinica, Qingdao 266071
|
| Abstract: |
| Contributions of prokaryote and eukaryote to total microplankton assemblages less than 200 μm in primary production and nitrogen uptakes were studied seasonally by antibiotic treatment and 14C, 15N tracer techniques in the central part of Jiaozhou Bay from Aug. 1992 to May 1993. The results showed that prokaryotic organisms played a not ignorable role in primary production processes, accounting for 16.38% - 41.00% of the total primary production, 47.61% - 71.28% of NH4+-N uptake and 48.15% - 80.54% of AA-N uptake. The bulk of NO3--N, on the other hand, was uptaken mainly by eukaryotic organism (64.86% - 87.28%). Some concepts and methods associated with nitrogen uptake by prokaryote are also discussed. |
| Key words: Prokaryote, Eukaryote, Primary production, Nitrogen uptake |
