Abstract
The Paenibacillus sp. strain PAMC 26794 was isolated from the tundra grasslands in Alaska for its high ability to degrade humic acids. We sequenced the PAMC 26794 genome to discover the degradative genes for natural humic substances and we propose the degradation pathway(s) of an abundant bacterial group (genus Paenibacillus) that inhabits cold environments.
Highlights
The Paenibacillus sp. strain PAMC 26794 was isolated from the tundra grasslands in Alaska for its high ability to degrade humic acids
Humic substances (HSs) are synthesized via the decomposition of plant material and other organic matter, and through the condensation of smaller molecules through biological and physical processes [2]
In August 2011, many bacterial strains were isolated from the tundra grasslands in Nome, AK, owing to their ability to degrade humic acids
Summary
The Paenibacillus sp. strain PAMC 26794 was isolated from the tundra grasslands in Alaska for its high ability to degrade humic acids. Humic substances (HSs), an important fraction of soil organic carbons, are distributed widely in low-temperature environments, including the Arctic and the Antarctic [1,2,3]. Amorphous and high-molecular-weight HSs are thought to be composed of aromatic, aliphatic, phenolic, quinonic, and N-derived components, which are bonded covalently. HSs are synthesized via the decomposition of plant material and other organic matter, and through the condensation of smaller molecules through biological and physical processes [2].
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