Tag: calcium carbonate
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Lichens and humans cement a friendship
The post discusses a study by Nisha Rokaya et al. exploring a synthetic lichen system to address concrete cracking. This approach combines fungi and algae/cyanobacteria to create a self-healing solution by producing calcium carbonate for repair. The research shows potential for sustainable construction but requires further testing for effectiveness in…
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When is a tree not a tree? When it’s a rock(!)
By way of an introduction to “ergastic substances” in plants, Mr P Cuttings considers calcium oxalate and carbonate. And relates this to a report that certain fig trees can sequester such inorganic carbon, potentially maintaining carbon sinks post-death. This biomineralisation could help to mitigate climate change while also benefiting soil…
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Shedding light on marine algae…
Dakota McCoy et al. (2024) demonstrate how heart cockles (Corculum cardissa) utilize specialized windows in their shells to focus sunlight onto symbiotic dinoflagellates for photosynthesis. The windows transmit 11–62% of photosynthetically-active radiation while filtering harmful UV rays, suggesting an adaptive advantage for both the molluscs and their symbionts.
Plant Cuttings 