The more than 40 chapters in this book provide an updated overview of our current understanding of the life of oxygenic phototrophs – from simple prokaryotic cyanobacteria to multicellular eukaryotic macroalgae – in a wide variety of extreme biotopes in which they are exposed to diverse forms of stress: high and low pH, high and low temperatures, including below zero temperatures, excessively high and extremely low light intensities, salt concentrations up to saturation, and xeric environments. We should not forget situations, e.g., the intertidal where conditions, especially related to water availability, fluctuate on a daily basis. In addition, many contributions deal with “polyextremophilic” phototrophs, which are simultaneously adapted to multiple forms of environmental stress. The unicellular red alga Cyanidium caldarium and its relatives Galdieria sulphuraria and Cyanidioschyzon merolae are among the best known examples of such polyextremophiles, being adapted to life in hot thermal pools at temperatures in the range of 45–56ºC and pH values as low as <2–4.
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Seckbach, J., Chapman, D.J., Garbary, D., Oren, A., Reisser, W. (2007). Algae and Cyanobacteria Under Environmental Extremes. In: Seckbach, J. (eds) Algae and Cyanobacteria in Extreme Environments. Cellular Origin, Life in Extreme Habitats and Astrobiology, vol 11. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-6112-7_42
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DOI: https://doi.org/10.1007/978-1-4020-6112-7_42
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