Archaea in protozoa and metazoa

@article{Lange2004ArchaeaIP,
  title={Archaea in protozoa and metazoa},
  author={M. Lange and P. Westermann and B. Ahring},
  journal={Applied Microbiology and Biotechnology},
  year={2004},
  volume={66},
  pages={465-474}
}
The presence of Archaea is currently being explored in various environments, including extreme geographic positions and eukaryotic habitats. Methanogens are the dominating archaeal organisms found in most animals, from unicellular protozoa to humans. Many methanogens can contribute to the removal of hydrogen, thereby improving the efficiency of fermentation or the reductive capacity of energy-yielding reactions. They may also be involved in tissue damage in periodontal patients. Recent… Expand
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Archaeal symbionts and parasites.
TLDR
Several species of Archaea are involved in symbiotic or parasitic associations with representatives of Eukarya, Bacteria and other Archaea, and can often not be assigned to the 'classical' concepts of mutalism, commensialism or parasitism. Expand
Archaeal habitats--from the extreme to the ordinary.
TLDR
From the broad distribution, metabolic diversity, and sheer numbers of archaea in environments from the extreme to the ordinary, the roles that the Archaea play in the ecosystems have been grossly underestimated and are worthy of much greater scrutiny. Expand
Archaea as emerging organisms in complex human microbiomes.
TLDR
The state of knowledge of Archaea associated with the human microbiome is reviewed and DNA sequences indicative of the presence of additional methanogenic and non-methanogenic Archaea in the human intestinal tract are detected. Expand
Methanogens in the Gastrointestinal Tract of Animals
Nearly all vertebrates host methanogens in their gastrointestinal tracts. However, a great fraction of vertebrates emits only traces of methane from their faeces (approx. 1 nmol/g faeces/h) and has… Expand
Why Archaea Are Limited in Their Exploitation of Other, Living Organisms
TLDR
What might limit the potential for Archaea to serve as exploiters of other, living organisms is considered and it is suggested that a spectrum likely exists in which eukaryotes—among the three cellular domains—are most frequently exploitive of other species while Archaea are the least. Expand
Methanogens in the Gastro-Intestinal Tract of Animals
TLDR
The attribute “methane production” is evolutionarily stable, and the loss of this character obeys Dollo’s law: once lost in the course of evolution, this character cannot be acquired another time. Expand
The Discussion Goes on: What Is the Role of Euryarchaeota in Humans?
TLDR
The aim of this paper is to inspire the scientific community of “Archaea experts” for those unique archaeal organisms that have successfully participated in the human-microbe coevolution. Expand
Methanogens in the Digestive Tract of Termites
TLDR
The high methane emissions of termites, together with their enormous biomass in the tropics, make them a significant natural source of this important greenhouse gas. Expand
Methanogenic archaea in health and disease: a novel paradigm of microbial pathogenesis.
TLDR
It has become clear that a fundamental change of approach to the understanding and control of microbial diseases must be implemented and a comprehensive strategy is needed to elucidate the syntrophic associations that are essential for a healthy relation among microbes and between them and the host organism, and to unveil those associations that lead to disease. Expand
56 Methanogenesis in the Digestive Tracts of Insects
TLDR
The oxygen-reducing capacities of the few available isolates and their location in the microoxic gut periphery indicate that at least some species of this notoriously oxygen-sensitive group are well adapted to the continuous influx of oxygen into their habitat. Expand
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