Exempel på archaea

• In the archaea, there is no nucleus.

• Archaea are part of the intestinal flora of humans and float in pockets of pressurized water in the Earth's crust.

• As much as 10 percent of the Earth's biomass lives below ground, including single-celled bacteria called archaea that feed on decaying matter.

• There are some Archaea that are only found in coal heaps, which makes you wonder what they did before we started mining coal.

• The researchers found that two litres of seawater contained nearly 37,000 different kinds of bacteria and nearly 3,000 types of archaea, ancient single-celled organisms.

• As archaeal translation is related to eukaryotic translation, statements about eukaryotes will be assumed throughout this review to apply to archaea as well and vice versa, unless otherwise specified.

• Among the discoveries that have resulted, it is found that the kingdom of archaea comprises two subgroups : euryarchaeota, which - remarkably - contain histone-like proteins, and chrenarchaeota, which do not.

• In this review, we summarize the available structural and functional data on translation initiation in the context of evolution, drawing parallels between eubacteria, archaea, and eukaryotes.

• Taken together, these results suggested that there is a microbial community of halophilic archaea present in rock salt, which comprises a much wider biodiversity than previously expected.

• Natural communities of novel archaea and bacteria growing in cold sulfurous springs with a string-of-pearls like morphology.

• We have tested growth and survival of two heterotrophic archaea under relevant in situ conditions.

• The latter two clone groups apparently represent widely distributed archaea in benthic marine sediments and the subsurface.

• Despite the unfavourable life conditions, permafrost is colonized by high numbers of viable microorganisms, including methanogenic archaea.

• The cell envelope structures were one of the first biochemical characteristics of archaea studied in detail.

• Early radiation of the archaea at least may be consistent with geological evidence.

• Modern archaea-planctomycete microbial associations may perhaps provide a model for early sediment communities.

• In situ metabolism of methanogenic archaea explains the increase in methane at these depths.

• The vacuum conditions and low temperatures of outer space need not prove lethal, as freeze-drying bacteria and archaea can actually increase their longevity.

• Extremely halophilic archaea were isolated from ancient salt sediments and were shown to represent novel species.

• The methanogenic archaea (former archaebacteria) - regarded as strictly anaerobic microbes - are considered as one of the first organisms who settled our planet under extreme conditions.