Myxogastria

Myxogastria
Badhamia utricularis (Physarales)
Scientific classification Edit this classification
Domain: Eukaryota
Clade: Amorphea
Phylum: Amoebozoa
Clade: Evosea
Subphylum: Conosa
Infraphylum: Eumycetozoa
Class: Myxogastria
T. Macbr. (1899)
Orders
Synonyms
  • Myxomycota sensu Alexopoulos et al. (1996)
  • Myxomycetes Link (1833), sensu Webster & Weber (2007)

Myxogastria/Myxogastrea (myxogastrids, ICZN) or Myxomycetes (ICN)[1] is a class of slime molds that contains 5 orders, 14 families, 62 genera, and 888 species.[2] They are colloquially known as the plasmodial or acellular slime moulds.

All species pass through several very different morphologic phases, such as microscopic individual cells, slimy amorphous organisms visible with the naked eye, and conspicuously shaped fruit bodies. Although they are monocellular, they can reach immense widths and weights: in extreme cases they can be up to 1 metre (3 ft 3 in) across and weigh up to 20 kilograms (44 lb).[3]

The class Myxogastria is distributed worldwide, but it is more common in temperate regions where it has a higher biodiversity than in polar regions, the subtropics, or the tropics. They are mainly found in open forests, but also in extreme regions such as deserts, under snow blankets, or underwater. They also occur on the bark of trees, sometimes high in the canopy. These are known as corticolous myxomycetes. Most species are very small.

  1. ^ Baldauf, S.L.; Doolittle, W.F. (October 1997). "Origin and evolution of the slime molds (Mycetozoa)". Proceedings of the National Academy of Sciences, USA. 94 (22): 12007–12012. Bibcode:1997PNAS...9412007B. doi:10.1073/pnas.94.22.12007. PMC 23686. PMID 9342353.
  2. ^ Kirk PM, Cannon PF, Minter DW, Stalpers JA (2008). Dictionary of the Fungi (10th ed.). Wallingford: CABI. p. 765. ISBN 978-0-85199-826-8.
  3. ^ Ing, Bruce (1999). The Myxomycetes of Britain and Ireland: An identification handbook. Slough, England: Richmond Pub. Co. p. 4. ISBN 978-0855462512.