A. Chennu

Cryptic arsenic cycling controls oxygenic photosynthesis in Precambrian-analog microbial mats

The paper shows cyanobacteria in microbial mats switch from oxygenic to arsenite-driven anoxygenic photosynthesis under high light, revealing a cryptic arsenic redox cycle that may have influenced early Earth oxygenation.

Digitizing the coral reef: machine learning of underwater spectral images enables dense taxonomic mapping of benthic habitats

The paper uses machine learning on underwater hyperspectral images to create detailed taxonomic maps of coral reef benthic habitats with high accuracy and low annotation effort.