The Role of Microbial Mats in the Biostabilization of Sediment Through Trapping and Binding [0.03%]
微生物垫通过捕获和粘结作用对沉积物生物稳定化的功能研究
Brianna Hibner,Nicolas J M Bell,Maya Gomes et al.
Brianna Hibner et al.
Layered microbial communities, called microbial mats, commonly form in the intertidal or shallow subtidal zone, particularly in areas protected from wave action and strong currents. These microbial mats can accrete by growing around sand-si...
Microbial N2O Reduction in Sulfidic Waters: Implications for Proterozoic Oceans [0.03%]
硫化水中的微生物硝酸盐还原作用：对前寒武纪海洋的意义
Steffen Buessecker,Aya S Klos,Melanie E Quan et al.
Steffen Buessecker et al.
Throughout Earth's history, shifts in ocean redox influenced the bioavailability of trace metals, shaping the activity of microorganisms. In Proterozoic oceans, the precipitation of copper (Cu) with sulfide was hypothesized to limit the bio...
Manganese(II) Oxidation and Mineralization by the Deep-Sea Bacterium Shewanella piezotolerans WP3 [0.03%]
深海细菌Shewanella piezotolerans WP3的锰（II）氧化和矿化作用
Haipeng Deng,Yating Yin,Teng Zhou et al.
Haipeng Deng et al.
Microbially mediated manganese (Mn) oxidation is a key process in the biogeochemical cycling of Mn. While Shewanella is widely recognized for its metal-reducing capabilities, recent studies have shown that certain terrestrial strains can al...
Contrasting Rare Earth Element Signatures Between Stromatolitic Carbonates and Lagoon Waters at Shark Bay, Western Australia: Implications for Paleo-Environmental Reconstructions of Microbial Habitats [0.03%]
澳大利亚西澳鲨鱼湾层孔珊瑚碳酸盐和潟湖水中稀土元素特征对比及其对微生物栖息地古环境重建的意义
S Viehmann,A-L Zocher,S V Hohl et al.
S Viehmann et al.
Rare earth elements and yttrium (REY) signatures in stromatolitic carbonates have emerged as powerful geochemical proxies for reconstructing paleo-depositional environments of microbial habitats. The applicability of such a proxy relies on ...
Microbialite Diversity and Ocean Redox Geochemistry of the Late Tonian Callison Lake Formation [0.03%]
晚图安尼安代Callison湖 formations微生物岩多样性及海洋氧化还原地球化学特征研究
Charlotte Spruzen,Malcolm W Wallace,Maxwell A Lechte et al.
Charlotte Spruzen et al.
Microbialites provide a unique insight into ancient microbial processes and environments, but trends in the diversity of unlaminated microbialites remain poorly understood. The ca. 745 Ma Callison Lake Formation in the Yukon (northwest Cana...
Paleoenvironmental Stasis for the Bioturbating Community During the Paleocene-Eocene Thermal Maximum at the Southern Iberian Margin [0.03%]
晚白垩世-古新世热极期伊比利亚南部边缘混居群落的古环境平衡状态研究
Olmo Miguez-Salas,Francisco J Rodríguez-Tovar,Victoriano Pujalte
Olmo Miguez-Salas
During the Paleocene-Eocene Thermal Maximum (PETM), there was an increase in global temperatures and emissions of isotopically depleted carbon, resulting in a negative carbon isotope excursion (CIE). This climatic event caused a widespread ...
Membrane Vesicle Formation Removes Iron Sulfide Mineral Crusts From the Cell Surface of Growing Sulfate-Reducing Bacteria [0.03%]
膜囊泡的形成可去除生长中的硫酸盐还原菌细胞表面的铁硫化物矿物包被
Cheyenne Brokaw,Patrice Boyd,Aude Picard
Cheyenne Brokaw
Sulfate-reducing bacteria (SRB) drive the process of sulfate reduction in low-temperature sedimentary environments. Through the production of sulfide, they promote the formation of iron-sulfide (Fe-S) minerals when Fe(II) is available. The ...
Tricks of Nature From the Ancient Earth and Early Mars: Chemical Gardens Generate Biomorphs With High Preservation Potential [0.03%]
古地球与早火星的自然奇观——化学花园产生可高度保存的生命体类似物
Solomon Hirsch,Sean McMahon,Jens Najorka et al.
Solomon Hirsch et al.
Observations of morphology are commonly used to evaluate the biogenicity of terrestrial microfossils and could constitute a crucial line of evidence for extraterrestrial life-detection missions in the future. However, evaluating the origin ...
Phytochemical Screening of 45-Million-Year-Old Colored Angiosperm Leaves Reveals Distinctive Chlorophyll-Derived and Polyphenolic Pigments [0.03%]
4500万年前被子植物叶片的植化筛查揭示类叶绿素和多酚色素痕迹
Klaus Wolkenstein,Christa E Müller,Marianne Engeser et al.
Klaus Wolkenstein et al.
Present-day angiosperm plants produce a plethora of metabolites including pigments that serve for important functions such as photosynthesis, protection against light, attraction of pollinators, and defense against microbes and herbivores. ...