Journal
FRONTIERS IN MICROBIOLOGY
Volume 6, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fmicb.2015.01108
Keywords
archaea; Marine Group II; heterotrophic metabolism; carbon cycle
Categories
Funding
- Ministry of Science and Technology [2013CB955703]
- National Science Foundation of China [41530105, 91028005, 91428308]
- National Thousand Talents program through the State Key Laboratory of Marine Geology at Tongji University
- Spanish Ministerio de Economia y Competitividad [MEDIMAX BFPU2013-48007-P]
- MaCuMBA Project of European Commission [311975]
- project AQUAMET from the Generalitat Valenciana [PROMETEO II/2014/012]
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Marine Group (MG) I (currently known as Thaumarchaeota) and MG II Archaea were first reported over two decades ago. While significant progress has been made on MG I microbiology and ecology, the progress on MG II has been noticeably slower. The common understanding is that while MG I mainly function as chemolithoautotrophs and occur predominantly in the deep ocean, MG II reside mostly in the photic zone and live heterotrophically. Studies to date have shown that MG II are abundant in the marine aquatic environment and display great seasonal and spatial variation and phylogenetic diversity. They also show unique patterns of organic carbon degradation and their energy requirements may be augmented by light in the photic zone. However, no pure culture of MG II has been obtained and thus their precise ecological role remains elusive.
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