Inorganic carbon concentrating mechanisms (CCMs) catalyse the accumulation of CO2
around rubisco in all cyanobacteria, most algae and aquatic plants and in C4 and …

Stromatolites document microbial interactions with sediments and flowing water throughout
recorded Earth history and have the potential to illuminate the long-term history of life and …

The Martian surface is cold, dry, exposed to biologically harmful radiation and apparently
barren today. Nevertheless, there is clear geological evidence for warmer, wetter intervals in …

It is often acknowledged that the search for life on Mars might produce false positive results,
particularly via the detection of objects, patterns or substances that resemble the products of …

The recognition of past habitable environments on Mars has increased the urgency to
understand biosignature preservation in and characterize analogues of these environments …

Soils are complex ecosystems and the pore-scale physical structure regulates key
processes that support terrestrial life. These include maintaining an appropriate mixture of …

Conical stromatolites are thought to be robust indicators of the presence of photosynthetic
and phototactic microbes in aquatic environments as early as 3.5 billion years ago …

Stromatolites and wrinkle structures are often taken to be an important indicator for early life.
While both may be shaped by microbial mat growth, this can be open to doubt, so that the …

Stromatolites are examples of an iterative system involving radiate accretive growth of
microbial mats, biofilm and/or minerals that result from interaction between intrinsic and …

Stromatolites may be Earth's oldest macroscopic fossils; however, it remains controversial
what, if any, biological processes are recorded in their morphology. Although the biological …