| 1. | More psychrophiles isolated from antarctic samples than that from deep sea sediments 与深海沉积物相比,嗜冷菌在南极样品中所占的比例较大。 |
| 2. | Researchers found the same telltale signature of drought in a deep - sea sediment core drilled from the gulf of oman 研究人员在从阿曼海湾的深海沉积物中钻取的岩芯中发现了同样能说明问题的旱灾的迹象。 |
| 3. | It could play an important role in the evolution of " warm pool " area . more than 300 pure psychrophilic and psychro - tolerant bacteria were isolated from environmental samples 对深海沉积物和极地环境样品进行了低温微生物的分离和培养,得到了300多株嗜(耐)冷细菌,并对其进行了生长特性的分析。 |
| 4. | Members of the - proteobctcteria and - proteobacteria were found to be most abundant in both areas , and members of - proteobacteria were seldom detected 不同海区深海沉积物中的细菌都以紫细菌( proteobacteria )为主,属于-和-紫细菌亚群的细菌种类和数量均最为丰富;而属于-亚群的细菌很少。 |
| 5. | These ophiolites may be originated from the small spreading oceanic ridges of back - arc or inter - arc restricted oceanic basins , and finally emplaced into the deep - sea sediments constituting the ophiolites in orogenic zones 蛇绿岩可能形成于孤后或孤间有限洋盆小扩张脊;最后侵位到深海沉积物中,形成了造山带中的蛇绿岩。 |
| 6. | In the recent years numerous scientists have found that there appeared many abrupt climatic changes during the last glacial by studying the high - resolution achieves of environmental change such as polar ice - core , deep ocean sediment and loess - palaeosol sequence et al 近十几年来,随着研究技术和方法手段的进步,许多科学家通过对极地冰芯、深海沉积物、黄土-古土壤等环境演化信息载体的研究,在末次冰期中发现了许多气候突变事件。 |
| 7. | The profile of microbial community structures in different deep sea sediments was evaluated and the interaction between microorganisms and environment was analyzed by culture - independent molecular phylogenetic methods . psychrophilic and psychro - tolerant bacteria were cultured and used for screening the cold - active enzymes 此外,本文还对采集自太平洋的深海沉积物和南极、北极区域的样品进行了低温微生物的分离培养及低温酶的筛选与性质分析。 |
| 8. | The climate of this period is almost as warm and wet as the stage 5e of the last interglacial . the mean temperature is 2 - 4 c higher and the precipitation is much larger than that of the today , the holocene which we live in . while in the climatic records of deep ocean , antarctic and greenland ice - core , marine isotope stage ( mis ) 3 is a weakly warm period , though a little warmer than marine isotope stage ( mis ) 2 and marine isotope stage ( mis ) 4 , evidently colder than the last interglacial and holocene favorable period 末次冰期中期,即深海氧同位素第3阶段的气候在我国,尤其是青藏高原地区表现出明显不同于深海沉积物和极地冰芯记录的特征:青藏高原古里雅冰芯的~ ( 18 ) o曲线表明3阶段存在特强夏季风事件,其气温和降水接近于末次间冰期5e阶段,超过全新世,其暖湿程度已经达到间冰期的程度;而深海氧同位素3阶段在深海、南极、格陵兰冰芯的氧同位素记录中均为弱暖期,虽较2阶段、 4阶段温暖,但显著低于全新世大暖期和末次间冰期。 |
| 9. | Some characteristics of cold - active protease and chitinase were analyzed then . microbial 16s rdna ( ribosomal dna ) clone libraries of deep sea sediments were constructed and studied by pcr - rflp ( restriction fragment length polymorphism ) and phylogenetic analysis based on 16s rdna sequences . the microbial diversity and community structures of deep sea sediments collected from two different sea area including the west pacific " warm pool " and the east pacific " manganese nodule " area , as well as the interaction between microbial community and environment , were analyzed based on these studies 通过构建沉积物中微生物16srdna克隆文库,采用pcr - rflp分析、 dna - dna杂交、 16srdna序列测定以及系统发育分析的方法,研究了两太平洋“暖池”区和东太平洋“结核”区两个不同海区深海沉积物中的微生物多样性和群落结构特征及其与环境的相互关系,得到了一些与“暖池”区环境特点紧密相关的新发现,新认识。 |