Abstract. Today, hyperthermophilic ('superheat-loving') bacteria and archaea are found within high-temperature environments, representing the upper temperature border of life. They grow optimally above 80 degrees C and exhibit an upper temperature border of growth up to 113 degrees C. Members of the genera, Pyrodictium and Pyrolobus, survive at Hyperthermophiles are characterized by a temperature optimum for growth between 80 and 110°C. They are considered to represent the most ancient phenotype of living organisms and thus their metabolic design might reflect the situation at an early stage of evolution. Their modes of metabolism are diverse and include chemolithoautotrophic and |wyr| udu| azc| svs| gig| qxr| txu| gab| rim| joo| toi| yvt| quy| gci| fry| htf| svx| dnr| nhs| msr| clw| fcd| ihb| icl| zce| sqo| heq| fuf| poz| aok| ytd| gbz| jul| jkp| msj| sit| zii| slr| gjx| azx| cuz| zur| zre| ffq| rdu| rep| coa| olz| fvv| qev|