Early life on land and the first terrestrial ecosystems
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TLDR
The rapid adaptations seen in modern terrestrial microbes, their outstanding tolerance to extreme and fluctuating conditions, their early and rapid diversification, and their old fossil record collectively suggest that they constituted the earliest terrestrial ecosystems, at least since the Neoarchean, further succeeding on land and forming a biomass-rich cover with mature soils where plant-dominated ecosystems later evolved.Abstract:
Terrestrial ecosystems have been largely regarded as plant-dominated land surfaces, with the earliest records appearing in the early Phanerozoic ( 3,400 Ma-old paleosols endorses the idea that life on land perhaps occurred in parallel with aquatic life back in the Paleoarchean. The rapid adaptations seen in modern terrestrial microbes, their outstanding tolerance to extreme and fluctuating conditions, their early and rapid diversification, and their old fossil record collectively suggest that they constituted the earliest terrestrial ecosystems, at least since the Neoarchean, further succeeding on land and forming a biomass-rich cover with mature soils where plant-dominated ecosystems later evolved. Understanding how life diversified and adapted to non-aquatic conditions from the actualistic and paleontological perspective is critical to understanding the impact of life on the Earth’s systems over thousands of millions of years.read more
Citations
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Journal ArticleDOI
Earliest signs of life on land preserved in ca. 3.5 Ga hot spring deposits
Tara Djokic,Tara Djokic,Martin J. Van Kranendonk,Martin J. Van Kranendonk,Kathleen A. Campbell,Malcolm R. Walter,Colin R. Ward +6 more
TL;DR: New discoveries of hot spring deposits including geyserite, sinter terracettes and mineralized remnants of hot springs pools/vents are presented, all of which preserve a suite of microbial biosignatures indicative of the earliest life on land.
Global Patterns in Bacterial Diversity
Catherine A. Lozupone,Rob Knight +1 more
TL;DR: This work reports the most comprehensive analysis of the environmental distribution of bacteria to date, based on 21,752 16S rRNA sequences compiled from 111 studies of diverse physical environments, and finds that sediments are more phylogenetically diverse than any other environment type.
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Phylogenomic Analyses Indicate that Early Fungi Evolved Digesting Cell Walls of Algal Ancestors of Land Plants
Ying-Ying Chang,Sishuo Wang,Satoshi Sekimoto,Satoshi Sekimoto,Andrea Aerts,Cindy Choi,Alicia Clum,Kurt LaButti,Erika Lindquist,Chew Yee Ngan,Robin A. Ohm,Asaf Salamov,Igor V. Grigoriev,Joseph W. Spatafora,Mary L. Berbee +14 more
TL;DR: Shared pectinases of Dikarya and Gonapodya provide evidence that even ancient aquatic fungi had adapted to extract nutrients from the plants in the green lineage, and imply the geological timing of the plant–fungus association is 750 million years old.
Journal ArticleDOI
Interpreting carbonate and organic carbon isotope covariance in the sedimentary record
Amanda M. Oehlert,Peter K. Swart +1 more
TL;DR: Paired carbonate and organic δ(13)C records are presented that exhibit a coupled negative excursion resulting from multiple periods of meteoric alteration of the carbonateδ( 13)C record, and consequent contributions of isotopically negative terrestrial organic matter to the sedimentary record.
Journal ArticleDOI
An online resource for marine fungi
E. B. Gareth Jones,Ka-Lai Pang,Mohamed A. Abdel-Wahab,Mohamed A. Abdel-Wahab,Bettina Scholz,Kevin D. Hyde,Teun Boekhout,Rainer Ebel,Mostafa E. Rateb,Linda Henderson,Jariya Sakayaroj,Satinee Suetrong,Monika C. Dayarathne,Vinit Kumar,Vinit Kumar,Seshagiri Raghukumar,Kandikere R. Sridhar,Ali H. Bahkali,Frank H. Gleason,Chada Norphanphoun +19 more
TL;DR: This article reviews knowledge of marine fungi covering a wide range of topics: their higher classification, ecology and world distribution, role in energy transfer in the oceans, origin and new chemical structures.
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