| Abundance of general aerobic heterotrophic bacteria in the Bering Sea and Chukchi Sea and their adaptation to temperature |
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| 引用本文： | 陈皓文,高爱国,孙海青,矫玉田. Abundance of general aerobic heterotrophic bacteria in the Bering Sea and Chukchi Sea and their adaptation to temperature[J]. 极地研究(英文版), 2004, 15(1): 39-46 |
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| 作者姓名： | 陈皓文 高爱国 孙海青 矫玉田 |
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| 作者单位： | First Institute of Oceanography，State Oceanic Administration，Qingdao 266061，China，First Institute of Oceanography，State Oceanic Administration，Qingdao 266061，China，First Institute of Oceanography，State Oceanic Administration，Qingdao 266061，China，First Institute of Oceanography，State Oceanic Administration，Qingdao 266061，China |
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| 摘 要： | 1 IntroductionInthedeepseawithawatertemperaturelowerthan5℃andtheseabottom ,theor ganicmattersareoxidizedmainlybytheaerobicbacteria (BenderandHeggie 1 984;Her bert 1 986) ,whichmeansthattheaerobicbacteriainthisenvironmentareratherabun dant.Thearcticseaareaisanareawhereenvironmentispermanentlycold ,butsomere searchresults (Sahmetal.1 998)indicatethattherearedominantbacteria eubacteriainthearcticseawaterandsediment,andtheiradaptationtotemperaturehasnosubstantialdifferenceincomparisonwiththatof…
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| 关 键 词： | 北极圈 海洋细菌 需氧不自养 温度适应性 |
Abundance of general aerobic heterotrophic bacteria in the Bering Sea and Chukchi Sea and their adaptation to temperature |
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| Chen Haowen,Gao Aiguo,Sun Haiqing and Jiao Yutian First Institute of Oceanography,State Oceanic Administration,Qingdao ,China. Abundance of general aerobic heterotrophic bacteria in the Bering Sea and Chukchi Sea and their adaptation to temperature[J]. Chinese Journal of Polar Science, 2004, 15(1): 39-46 |
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| Authors: | Chen Haowen Gao Aiguo Sun Haiqing Jiao Yutian First Institute of Oceanography State Oceanic Administration Qingdao China |
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| Affiliation: | First Institute of Oceanography,State Oceanic Administration,Qingdao,266061,China |
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| Abstract: | The abundance of general aerobic heterotrophic bacteria(GAB) from the water and sediment in the Bering Sea and the Chukchi Sea was determined by using petri dish cultivation and counting method. The abundance of GAB among the different sea areas, sampling sites, layers of sediments surveyed and adaptability to differential temperatures was studied. The result obtained showed that: the occurrence percentage of GAB in the surface water was higher than that in sediment, but the abundance was only 0.17% of sediment. The occurrence percentage of GAB in surficial layer of sediment was higher than that in the other layers. The occurrence percentage of GAB in surficial layer of sediment was higher than that in the other layers. The occurrence percentage, abundance and its variation of GAB in the Bering Sea were higher than that in the Chukchi Sea respectively. The average value of the abundance of GAB in sediment showed a trend: roughly higher in the lower latitudinal area than higher latitude. The results from temperature test mean that: the majority of bacteria tested were cold -adapted ones, minority might be mesophilic bacteria. The results indicated that, Arctic ocean bacteria had a stronger adaptability to environmental temperature. |
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| Keywords: | Arctic marine general aerobic heterotrophic bacteria abundance adaptability to temperature. |
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