About 10 years ago, a new family of cell wall-deficient, iron-oxidizing archaea, Ferroplasmaceae , within the large archaeal phylum Euryarchaeota , was described. In this minireview, I summarize the research progress achieved since then and report on the current status of taxonomy, biogeography, physiological diversity, biochemistry, and other research areas involving this exciting group of acidophilic archaea.
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