Since the general recognition of the Archaebacteria, research into the
evolution, metabolism, molecular biology and ecological roles of these
fastidious anaerobes has proceeded at an ever-increasing pace. All
possess a very novel biochemistry and many exploit unique ecological
niches. Methanogens, which convert one-and-two carbon compounds into the
important atmospheric gas methane, are the largest group among the
Archaebacteria. Of all microbial groups, methanogens provide perhaps the
best opportunity to study evolution because of their phyologenetic
diversity and unique biochemistry. Today, the analysis of methanogens is
at a threshold. Molecular-biological studies of these microorganisms are
revealing more and more processes unique to this group, and in turn,
studies of methanogens are providing new perspectives to the broader
fields of biochemistry and molecular biology. This volume is the first
book to be published on methanogenesis, and it will provide the reader
with a comprehensive view of the field and point to future trends.