Bicarbonate photolysis drives the coupling of karstification and photosynthesis

This dataset contains the experimental data used in the study titled "Bicarbonate Photolysis Drives the Coupling of Karstification and Photosynthesis". The research investigates the role of bicarbonate photolysis in linking geological carbon sinks (karstification) with biological processes such as photosynthesis. The dataset includes measurements of stable carbon (δ¹³C) and oxygen (δ¹⁸O) isotopes, microalgae biomass growth data under various treatment conditions, and the impacts of specific inhibitors (DIDS, DCMU, and Acetazolamide) on bicarbonate utilization and carbon fixation in three species of microalgae: Chlorella vulgaris, Chlamydomonas reinhardtii, and Microcystis aeruginosa.

The data includes:

Chlorophyll concentrations (Chl-a) for each species under different treatments.

Stable carbon and oxygen isotope values (δ¹³C and δ¹⁸O) to assess carbon and oxygen turnover during bicarbonate photolysis.

Measurements of the Karst-Photosynthesis Coupling Capacity Factor (KPCF), a novel metric developed to quantify the efficiency of inorganic carbon utilization from carbonate dissolution in the photosynthetic process.

Experimental conditions and methods, including isotopic labeling with calcium carbonate (CaCO₃) and the application of inhibitors targeting specific biochemical pathways.

This dataset is critical for understanding the biochemical interactions that govern carbon and oxygen dynamics in karst ecosystems and photosynthetic organisms, offering insights into the coupling of geological and biological carbon sinks.