Some of the most hyperthermophilic bacteria are found within the genus Thermotoga. This article in Microbiology Today explains how these properties could make these micro-organisms promising new sources of biofuels:
Thermotoga first attracted the attention of biotechnologists because of the variety of thermophilic enzymes found in the genus. These bacteria grow on different carbohydrates that are degraded into their sugar monomers before they are taken up and metabolized. It has therefore been possible to isolate, characterize and use a number of highly thermostable hydrolytic and other enzymes from Thermotoga.