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… led to the development of multicellular organisms. Not all bacterial lineages harnessed aerobic respiration when the … two research teams joined forces and data sets to describe bacterial genomes for related (“sibling”) lineages … Margulisbacteria and Saganbacteria that diverged from the bacterial tree before Cyanobacteria and its contemporaries. …

… gas, regulate Earth’s climate. Most methane is produced in environments without oxygen through a process called … microorganisms therefore play a critical role in the global carbon cycle, and are of significant interest for their … types of substrates for methanogenesis, and cannot use carbon dioxide or acetate like many long-known methanogens …