Geobiology Reading Group @geobioreadinggroup

October 31, 2025: doi.org/10.1111/gbi....

29.10.2025 17:22 — 👍 0 🔁 0 💬 0 📌 0

Increased carbon inputs alter soil microbial genetic potential for biogeochemical cycling in Arctic ecosystems - Communications Earth & Environment Plant litter additions enhance soil microbial functional potentials for carbon and nitrogen cycling in high-Arctic ecosystems, based on a four-year experiment simulating vegetation expansion under cli...

October 24, 2025: doi.org/10.1038/s432...

24.10.2025 03:04 — 👍 0 🔁 0 💬 0 📌 0

Seasonal biogeochemical variations in a modern microbialite reef under early Earth-like conditions - Communications Earth & Environment Microbial communities, exposed to early Earth-like conditions in a modern microbialite reef, change cyclically due to seasonal environmental variations, implying evolved metabolic processes in microbialites over time, based on multiple chemical, physical, and biological analyses.

October 3, 2025: doi.org/10.1038/s432...

01.10.2025 21:19 — 👍 2 🔁 1 💬 0 📌 0

Exploring productivity hotspots in the Precambrian biosphere | Philosophical Transactions of the Royal Society B: Biological Sciences Earth’s earliest biosphere was likely limited by metabolic energy. Nutrient limitation, which imparts a strong control on productivity today, only began with the origin of oxygenic photosynthesis ca 3...

September 12, 2025: doi.org/10.1098/rstb...

09.09.2025 23:41 — 👍 0 🔁 0 💬 0 📌 0

An early origin of oxygenic photosynthesis delays the Great Oxidation | Philosophical Transactions of the Royal Society B: Biological Sciences The Great Oxidation Event (GOE) was the most significant chemical revolution in Earth’s history, occurring 2.4 billion years ago. The metabolism that made this transition possible, oxygenic photosynth...

August 29, 2025: doi.org/10.1098/rstb...

28.08.2025 01:14 — 👍 0 🔁 0 💬 0 📌 0

Metal-driven anaerobic oxidation of methane and the Sturtian deglaciation - Nature Communications Metal-driven anaerobic oxidation of methane and methanogenesis, mediated by a diverse microbial community, drove iron-mineral transformation and may have aided ice sheet melting, according to analysis...

August 22, 2025: doi.org/10.1038/s414...

19.08.2025 23:09 — 👍 0 🔁 0 💬 0 📌 0

Isolation of a putative sulfur comproportionating microorganism - Scientific Reports Scientific Reports - Isolation of a putative sulfur comproportionating microorganism

June 13, 2025: doi.org/10.1038/s415...

10.06.2025 23:07 — 👍 0 🔁 0 💬 0 📌 0

Simulated early Earth geochemistry fuels a hydrogen-dependent primordial metabolism - Nature Ecology & Evolution In an iron-sulfide chemical garden experiment that mimics the kind of hydrothermal vents that might have occurred in the early Archaean, mackinawite and greigite are precipitated and abiotic H2 is pro...

May 16, 2025: doi.org/10.1038/s415...

12.05.2025 20:18 — 👍 1 🔁 0 💬 0 📌 0

Postglacial bioweathering, soil nutrient cycling, and podzolization from palaeometagenomics of plants, fungi, and bacteria From basalt weathering to podsolization, long-term soil development in Arctic tundra-forest recovered by palaeometagenomics.

March 8, 2025: doi.org/10.1126/scia...

08.05.2025 21:37 — 👍 1 🔁 0 💬 0 📌 0

The potential for coupled organic and inorganic sulfur cycles across the terrestrial deep subsurface biosphere - Nature Communications Organic sulfur compounds are vital to life but often overlooked in the sulfur cycle, especially in the subsurface. Subsurface microbes can metabolize diverse organosulfur compounds, hinting at a more ...

April 25, 2025: doi.org/10.1038/s414...

24.04.2025 00:07 — 👍 1 🔁 0 💬 0 📌 0

Refugium amidst ruins: Unearthing the lost flora that escaped the end-Permian mass extinction The Taodonggou refugium helped the rapid establishment of a diverse terrestrial ecosystem after the end-Permian mass extinction.

April 18, 2025: doi.org/10.1126/scia...

16.04.2025 22:45 — 👍 1 🔁 0 💬 0 📌 0

Preserved carbon isotope compositions in 3.7 billion year old detrital organic matter from the Isua Supracrustal Belt - Communications Earth & Environment Detrital biogenic graphite may signal the Earth’s oldest evidence of life, according to the results from carbon isotope analysis of graphite in 3.7-billion-year-old sediments from the Isua Supracrusta...

April 11, 2025: doi.org/10.1038/s432...

08.04.2025 23:14 — 👍 0 🔁 0 💬 0 📌 0

Single-cell imaging reveals efficient nutrient uptake and growth of microalgae darkening the Greenland Ice Sheet - Nature Communications Blooms of pigmented microalgae accelerate glacier and ice sheet melting by reducing the surface albedo. Here, Halbach et al. use single-cell measurements of elemental composition and nutrient assimila...

March 14, 2025: doi.org/10.1038/s414...

11.03.2025 02:48 — 👍 0 🔁 0 💬 0 📌 0

The hidden role of heterotrophic bacteria in early carbonate diagenesis - Scientific Reports Scientific Reports - The hidden role of heterotrophic bacteria in early carbonate diagenesis

March 7, 2025: doi.org/10.1038/s415...

25.02.2025 01:01 — 👍 0 🔁 0 💬 0 📌 0

February 28, 2025: Due to a campus symposium, this meeting of the reading group is canceled.

25.02.2025 01:00 — 👍 0 🔁 0 💬 0 📌 0

Marine carbon burial enhanced by microbial carbonate formation at hydrocarbon seeps - Communications Earth & Environment Carbonate precipitation by microbial mats in active hydrocarbon seeps can accelerate carbon sequestration in these settings by up to 25 times, according to analysis of a drill core from the South Chin...

February 21, 2025: doi.org/10.1038/s432...

17.02.2025 21:40 — 👍 0 🔁 0 💬 0 📌 0

Early‐Branching Cyanobacteria Grow Faster and Upregulate Superoxide Dismutase Activity Under a Simulated Early Earth Anoxic Atmosphere The evolution of oxygenic photosynthesis during the Archean (4–2.5 Ga) required the presence of complementary reducing pathways to maintain the cellular redox balance. While the timing of the evoluti....

February 14, 2025: doi.org/10.1111/gbi....

11.02.2025 02:28 — 👍 0 🔁 0 💬 0 📌 0

Geobiology Reading Group

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