| 白令海和楚科奇海测区沉积物硫酸盐还原菌初步研究 |
| |
| 引用本文： | 陈皓文,高爱国.白令海和楚科奇海测区沉积物硫酸盐还原菌初步研究[J].极地研究,2000,12(3):211-218. |
| |
| 作者姓名： | 陈皓文 高爱国 |
| |
| 作者单位： | 国家海洋局第一海洋研究所，青岛 266061 |
| |
| 基金项目： | 中国首次北极科学考察资助项目 |
| |
| 摘 要： | 用 MPN法测定了取自白令海和楚科奇海 35个沉积物样品中的硫酸盐还原菌 (SRB)含量。所有样品的 SRB平均含量约 1 .68× 1 0 5个 .g- 1,变幅约为 0～ 2 .2 8× 1 0 6个 .g- 1。分析并比较了 SRB含量在表层、次表层或混合层样中及不同站位、测区间的差异 ,大体看来 ,SRB含量表层少于次表层。若以白令海峡为界 ,在海峡两侧 SRB含量的增加呈相反趋势 :即在白令海呈向南增加、在楚科奇海呈向北增加的趋势 ;经向分布也显示出相反的趋势 :在白令海呈向东增加、在楚科奇海呈向西增加的趋势。结果还表明 SRB在不同培养温度中有各自的出现率 ,反映测区SRB以适冷菌为主。温度是其主要控制因子。相当多的中温菌也有出现
|
| 关 键 词： | 白令海 楚科奇海 硫酸盐还原菌 温度效应 适冷菌 |
| 修稿时间： | 2000年6月1日 |
PRELIMINARY STUDY ON SEDIMENT SULPHATE REDUCING BACTERIA IN THE SURVEY AREAS OF BERING SEA AND CHUKCHI SEA |
| |
| Chen Haowen,Gao Aiguo.PRELIMINARY STUDY ON SEDIMENT SULPHATE REDUCING BACTERIA IN THE SURVEY AREAS OF BERING SEA AND CHUKCHI SEA[J].Chinese Journal of Polar Research,2000,12(3):211-218. |
| |
| Authors: | Chen Haowen Gao Aiguo |
| |
| Abstract: | The content of sulphate reducing bacteria (SRB)of the 35 sediment samples was determined by using MPN technique in the survey areas of Bering Sea and Chukchi Sea. The average content of SRB in all samples tested is about 1.68×10 5 cells·g -1 (wet.), its variation is 0-2.28×10 6 cells·g -1 . The differences of SRB content were analyzed and compared among the surficial layers, subsurficial or mixed ones in varied areas and stations surveyed. Roughly speaking, the SRB content in the surficial layers was lower than that in the subsurficial and mixed ones. The determinable SRB content appears presumedly opposite trend, i.e. it seems that the content of SRB increases south or east in Bering Sea and north or west in Chukchi Sea respectively if drawing a line on Bering Strait. The result indicates the occurrence percentages of SRB at 4 different cultivation temperature and suggests that there are a lot of cold adapted bacteria there. The low environmental temperature is still mainly a controlling factor. There are quite a few mesopholic bacteria, and it can be deduced that an effect of suitable organic matter supply to the SRB from raising temperature after melting frozen period. |
| |
| Keywords: | Bering Sea Chukchi Sea sulphate reducing bacteria temperature effect cold-adapted bacteria |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《极地研究》浏览原始摘要信息 |
| 点击此处可从《极地研究》下载免费的PDF全文 |
|
