Succession of bacterial community structure and potential significances along the sediment core spanning approximately 20 megaannum years in the South China Sea

Abstract

深海生物圈包括细菌、古菌和真菌生态系统,生物多样性特征十分独特,并在不同地质时间尺度上表现出不同的特点。通常,微生物的群落结构随周围地球化学条件的变化而发生改变。迄今为止深海生物圈的研究几乎总是关注地球化学循环与微生物群落之间的关系,然而微生物的群落结构与深度距离或地质年龄距离之间的关系,却很少有人研究阐明。这种关系的构建对于确定微生物的分布是否可以反映沉积历史和地质时间是至关重要的。同时,微生物群落与生物地球化学循环、沉积物性质以及海底环境中地质事件之间的关系也仍需进一步探究。 (1)为了探究地质过程和沉积历史对地下生物圈的潜在影响,本研究采用分子生物学方法揭示了南海沉积柱的细菌群落结构演...The deep biosphere harbors a vast ecosystem of bacteria, archaea, and fungi, with some unique biodiversity, and functions on geological time scales. Microbial communities usually change in response to surrounding geochemical conditions. However, deep biosphere studies to date almost always focused on geochemical control of and interactions with microbial communities. Very few studies have addresse...学位:理学硕士院系专业:海洋与地球学院_海洋生物学学号:2232014115134

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