...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Earth and Planetary Science Letters: A Letter Journal Devoted to the Development in Time of the Earth and Planetary System >Evidence of sub-vent biosphere: enzymatic activities in 308 degrees C deep-sea hydrothermal systems at Suiyo seamount, Izu-Bonin Arc, Western Pacific Ocean
【24h】

Evidence of sub-vent biosphere: enzymatic activities in 308 degrees C deep-sea hydrothermal systems at Suiyo seamount, Izu-Bonin Arc, Western Pacific Ocean

机译：地下生物圈的证据：西太平洋伊豆-波宁弧线Suiyo海山308度深海热液系统中的酶活

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A high-temperature deep-sea hydrothermal system related to dacitic arc-volcanism was drilled using a tethered, submarine rock-drill system as a part of the Archaean Park Project. The benthic multi-coring system (BMS) employed allowed for direct sampling of microorganisms, rocks and fluids beneath hydrothermal vents. The samples examined in this study were from sites APSK 05 and APSK 07 on the Suiyo Seamount of the Izu-Bonin Arc in the Pacific Ocean. Based on the vertical distribution of samples derived from this vigorous sub-vent environment, a model of deep-sea subterranean chemistry and biology was determined detailing optimal microbial activities. Deep-sea hydrothermal sub-vent core samples of dacitic arc-volcanism obtained at the Suiyo Seamount, Izu-Bonin Arc, Western Pacific Ocean were analyzed for acid and alkaline phosphatase enzymatic activities. Useful biomarkers of acid phosphatase (ACP) and alkaline phosphatase (ALP) enzymatic activities were positively correlated against each other and was greatest at the partial middle core sequences; ACP and ALP activities determined were as high as 5.10 and 6.80 nmol/min/g rock, respectively. Biochemical indicators of ACP and ALP were consistent with the origin of biogenic amino acids occupied in the sub-vent region and microbial cell number in the fluid. The significant enzymatic activities demonstrated in this study provides crucial evidence that sub-vent regions represent part of the previously unknown extreme-environment biosphere, extending the known subterranean habitable spaces of, for example,
机译：作为古代公园项目的一部分，使用束缚的海底凿岩系统对与大洋弧火山作用有关的高温深海热液系统进行了钻探。采用的底栖多重取心系统（BMS）可以直接对热液喷口下面的微生物，岩石和液体进行采样。本研究中检验的样品来自太平洋伊豆-波宁弧线Suiyo海山的APSK 05和APSK 07。基于从这种旺盛的地下环境中采集的样品的垂直分布，确定了深海地下化学和生物学模型，其中详细列出了最佳微生物活性。分析了在西太平洋Suiyo Seamount，Izu-Bonin Arc处获得的洋弧火山岩深海热液下岩心样品的酸性和碱性磷酸酶活性。酸性磷酸酶（ACP）和碱性磷酸酶（ALP）的酶活性的有用生物标志物彼此呈正相关，在部分中间核心序列处最大。测定的ACP和ALP活性分别高达5.10和6.80 nmol / min / g岩石。 ACP和ALP的生化指标与亚排放区中占据的生物氨基酸的来源和液体中的微生物细胞数量一致。这项研究中证明的重要酶活性提供了关键证据，表明地下室区域代表了以前未知的极端环境生物圈的一部分，扩展了已知的地下可居住空间，例如

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号