Terraces near Flamencos Lagoon in the southeastern Salar de Pajonales (Chile), located at 3,517 m above sea level in the arid Altiplano, host relic gypsum stromatolites and crusts formed under […]
Photosynthesis
How Proteins Crucial To Photosynthesis On Earth Are Arranged
Research led by scientists at Washington State University has revealed insights on how plants form a microscopic landscape of proteins crucial to photosynthesis, the basis of Earth’s food and energy […]
How Microbes Use Earth’s Ancient Carbon
Hydrothermal vents on the ocean floor release carbon dioxide that is many million years old. This old carbon originates from the Earth’s interior, and it escapes either directly from the […]
Priority Effects Inhibit The Repeated Evolution Of Phototrophy
The emergence of phototrophy is one of the most significant innovations in the history of life, vastly increasing available metabolic energy. Phototrophy is, however, known to have arisen only twice.
Photosynthetic Exergy I. Thermodynamic Limits For Habitable-zone Planets
Photosynthesis is central to Earth’s biosphere and a prime candidate for sustaining complex life on habitable exoplanets, yet a thermodynamically consistent treatment of the work potential of stellar radiation at […]
From Sea To Soil: Molecular Changes Suggest How Algae Evolved Into Plants
Before plants evolved, vegetative life consisted of primitive green algae living in the sea. Like plants, these algae survived by performing photosynthesis, turning sunlight into energy. However, little light reaches […]
Dearth of Photosynthetically Active Radiation Suggests No Complex Life on Late M-Star Exoplanets
The rise of oxygen in the Earth’s atmosphere during the Great Oxidation Event (GOE) occurred about 2.3 billion years ago. There is considerably greater uncertainty for the origin of oxygenic […]
Study Showcases Resilience and Rapid Growth of “Living Rocks”
South Africa is home to some of the oldest evidence of life on Earth, contained in rocky, often layered outcroppings called microbialites. Like coral reefs, these complex “living rocks” are […]
Cyanobacteria Under UV Radiation: General Insights Into Stress Responses
One of the first organisms to appear on Earth was cyanobacteria, which carried out oxygenic photosynthesis.
The Hidden Viral Network: How Viruses Shape Microbial Adaptability and Biogeochemical Cycling in the Polyextreme Mars-Analog Qaidam Basin Desert
Viruses play essential roles in shaping the structure and function of microbial communities, including those inhabiting extreme environments.
