Why Do Filamentous Actinomycetota Produce Such a Vast Array of Specialized Metabolites? [0.03%]
丝状放线菌为什么会产生如此众多的专业代谢产物？
Luis M Cantu Morin,Kilian Dekoninck,Varun Sridhar et al.
Luis M Cantu Morin et al.
Bacteria of the phylum Actinomycetota are extremely diverse: They inhabit niches ranging from soils and ocean sediments to the normal human microbiota, and they cause tuberculosis, one of the most prevalent chronic bacterial infections.
A 12,800-year-old layer with cometary dust, microspherules, and platinum anomaly recorded in multiple cores from Baffin Bay [0.03%]
记录在巴芬湾多个岩芯中的含有微球体和铂异常的1.28万年前彗星尘层
Christopher R Moore,Vladimir A Tselmovich,Malcolm A LeCompte et al.
Christopher R Moore et al.
Here we report the first discovery of similar impact-related proxies in ocean sediments from four marine cores in Baffin Bay that span the YDB layer at water depths of 0.5-2.4 km, minimizing the potential for modern contamination.
Microbial ecosystems and ecological driving forces in the deepest ocean sediments [0.03%]
最深海洋沉积物中的微生物生态系统及其生态驱动因素
Xiang Xiao,Weishu Zhao,Zewei Song et al.
Xiang Xiao et al.
Systematic exploration of the hadal zone, Earth's deepest oceanic realm, has historically faced technical limitations. Here, we collected 1,648 sediment samples at 6-11 km in the Mariana Trench, Yap Trench, and Philippine Basin for the Mari...
Unveiling the deep-sea microplastic Odyssey: Characteristics, distribution, and ecological implications in Pacific Ocean sediments [0.03%]
揭开深海微塑料奥德赛：太平洋洋底的特性、分布及生态影响
Hua Deng,Yutao Fu,Lei Su et al.
Hua Deng et al.
Microplastics (MPs) in deep-sea environments are a growing concern due to their potential ecological risks and the deep sea's role in global biogeochemical cycles. This study investigated the characteristics and distribution of MPs in sedim...
Niche Partitioning and Intraspecific Variation of Thaumarchaeota in Deep Ocean Sediments [0.03%]
深海沉积物中古菌的生态分化及种内差异性研究
Ronghua Liu,Xinxin He,Gaoyang Ren et al.
Ronghua Liu et al.
Deep-sea sediments contain a large number of Thaumarchaeota that are phylogenetically distinct from their pelagic counterparts. However, their ecology and evolutionary adaptations are not well understood. Metagenomic analyses were conducted...
Predicting Climate Mitigation Through Carbon Burial in Blue Carbon Ecosystems-Challenges and Pitfalls [0.03%]
预测通过蓝色碳汇生态系统中的碳封存来进行气候缓解-挑战与困境
Erik Kristensen,Mogens R Flindt,Cintia O Quintana
Erik Kristensen
Blue carbon deposited in ocean sediments can only counteract anthropogenic greenhouse gas (GHG) emissions if stored on a long-term basis.
Bacterial abundant taxa exhibit stronger environmental adaption than rare taxa in the Arctic Ocean sediments [0.03%]
细菌优势类群比稀有类群在北极海洋沉积物中表现出更强的环境适应性
Jianxing Sun,Hongbo Zhou,Haina Cheng et al.
Jianxing Sun et al.
Marine bacteria influence Earth's environmental dynamics in fundamental ways by controlling the biogeochemistry and productivity of the oceans. However, little is known about the survival strategies of their abundant and rare taxa, especial...
Hexabromocyclododecanes in soils, plants, and sediments from Svalbard, Arctic: Levels, isomer profiles, chiral signatures, and potential sources [0.03%]
六溴环十二烷在斯瓦尔巴群岛的土壤、植物和沉积物中的分布：水平、异构体模式、手性标志以及潜在来源
Chenlu Lin,Honghua Li,Zhiguo Pei et al.
Chenlu Lin et al.
Elevated proportions of α-HBCD with an average of 41% in the terrestrial samples and 25% in ocean sediments compared to those in commercial products (10-13% for α-HBCD) were observed, implying isomerization from γ- to α-HBCD in the Arctic environment.
Daniel H Rothman
Daniel H Rothman
This aging effect leaves observable quantitative signatures: Organic matter decays at rates that are inversely proportional to its age, while microbial populations and concentrations of organic carbon in ocean sediments decrease at distinct powers of age.
Comparative single-cell genomics of Atribacterota JS1 in the Japan Trench hadal sedimentary biosphere [0.03%]
日本海沟超深渊沉积生物圈中Atribacterota门JS1的比较单细胞基因组学研究
Kana Jitsuno,Tatsuhiko Hoshino,Yohei Nishikawa et al.
Kana Jitsuno et al.
However, the potential metabolic functions of individual microorganisms and their biogeographical distributions in hadal ocean sediments remain largely unexplored.
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