thermophiles « Back to Glossary IndexMicrobes that have optimal growth rates at temperatures above 45°C Related Articles: 28 – 7 δ Proteobacteria28 – 11 Firmicutes, Part 228 – 12 Other photosynthetic divisions, Cyannobacteria, Chlorobi and Chloroflexi29 – 1 Introduction29 – 4 Euryarchaeota – Thermoacidophilic bacteria and extreme thermophiles« Back to Glossary Index