Eumycetozoa

Dictyostelium discoideum, copyright Usman Bashir.

Belongs within: Amoebozoa.
Contains: Lucisporidia, Columellidia.

The Eumycetozoa, true slime moulds, are a clade of amoeboid organisms characterised by the production of aggregative fruiting bodies during the reproductive phase of the life cycle. The prior nutritive stage may develop as separate individual amoebae, as in Dictyostelia, or a multinucleate plasmodium as in Myxogastria.

Characters (Adl et al. 2019): Fruiting either sorocarpically or sporocarpically; life cycle having a single haploid amoeboid state, or a bikont ciliated amoebae state that gives rise to a non-ciliate obligate amoeboid state from which sporocarps develop; ciliated amoebae of myxogastrids and protosporangiids and amoebae of dictyostelids flat and form wide pseudopodia with acutely pointed subpseudopodia and no pronounced streaming of the granular cytoplasm; where sex is well studied, the zygote cannibalises haploid amoebae.

<==Eumycetozoa (see below for synonymy)AB19
| i. s.: Calyssosporium Corda 1831 (n. d.)KC01
| Halterophora Endl. 1836 (n. d.) [=Tipularia Chevall. 1822 non Nutt. 1818]KC01
| Hystricapsa Preuss 1851 (n. d.)KC01
|--Myxogastria (see below for synonymy)C-SCL16
| | i. s.: Cladostelium bisporumC-SCO04 (see below for synonymy)
| | Amylotrogus Roze 1896 (n. d.)KC01
| | Coccospora Wallr. 1833 (n. d.) [incl. Bactridiopsis Henn. 1904]KC01
| | Coniocephalum Brond. 1828KC01
| | Cribraria Schrad. ex Gmel. 1792 (n. d.) non Pers. 1794 (nom. cons.)KC01
| | Demordium Link 1809KC01
| | Dermodium Link 1809KC01
| | Embolus Haller 1768 (n. d.)KC01
| | Microcarpon Schrad. ex Gmel. 1792 (n. d.)KC01
| | Myrosporium Corda 1831 (n. d.)KC01
| | Myxomycetes Renault 1895KC01
| | Ostracococcum Wallr. 1833 (n. d.)KC01
| | Pecila Lepell. 1822 (n. d.)KC01
| | Phlebomorpha Heim 1929 (n. d.)KC01
| | Phytoceratiomyxa Sawada 1929 (n. d.)KC01
| | Scoriomyces Ellis & Sacc. 1885 (n. d.)KC01
| | Semimorula Haskins, McGuinn. & Berry 1983KC01
| | SporigastrumKC01
| | Stylonites Fr. 1848 (n. d.)KC01
| | Xyloidium Czern. 1845 (n. d.)KC01
| |--LucisporidiaC-SCL16
| `--ColumellidiaC-SCL16
`--StelamoebeaC-SCL16
|--Protosporangiida [Exosporeae]C-SCL16
| |--ProtosporangiidaeC-SCL16
| | |--Clastostelium Olive & Stoaianovitch 1977C-SCL16
| | | `--C. recurvatumC-SCL16
| | `--Protosporangium Olive & Stoaianovitch 1972C-SCL16
| | `--P. articulatumC-SCL16
| `--Ceratiomyxa Schroeter 1889AB19 (see below for synonymy)
| |--*C. mucida [=Isaria mucida Pers. 1794]NNB93
| |--C. fruticulosa (Müll.) Macbr. 1899 [=Byssus fruticulosus Müll. 1777]NNB93
| | |--C. f. var. fruticulosaNNB93
| | |--C. f. var. descendens Emoto 1933NNB93
| | `--C. f. var. porioides (Alb. & Schw.) Lister 1894 (see below for synonymy)NNB93
| |--C. hemisphaerica Olive & Stoian 1979NNB93
| |--C. morchella Welden 1954NNB93
| `--C. sphaerosperma Boedijn 1927NNB93
`--Dictyostelia (see below for synonymy)C-SCL16
| i. s.: CavenderiaAB19
| CoremiosteliumAB19
| HagiwariaAB19
| HeterosteliumAB19
| RaperiosteliumAB19
| RostrosteliumAB19
| SpeliosteliumAB19
| SynsteliumAB19
| TieghemosteliumAB19
| Coenonia Van Tieghem 1884AB19
|--+--Acytostelium Raper 1956TA16, KC01 [Acytosteliaceae, Acytosteliidae]
| | `--A. subglobosumTA16
| `--Polysphondylium Bref. 1884TA16, KC01
| |--P. pallidumTA16
| `--P. violaceumTA16
`--Dictyostelium Bref. 1870TA16, KC01 [incl. Hyalostilbum Oudem. 1885KC01]
|--D. antarcticumC-SCL16
|--D. boomerasporumC-SCL16
|--D. caveatumC-SCL16
|--D. discoideum Raper 1935AS12
|--D. mucoroidesLB90
|--D. myxobasisC-SCL16
|--D. polycarpumC-SCL16
|--D. polycephalumC-SCL16
|--D. purpureumTA16
`--D. stellarumC-SCL16

Ceratiomyxa Schroeter 1889AB19 [=Ceratium Alb. & Schwein. 1805 non Schrank 1793KC01; incl. Ceratiopsis De Wildeman 1896KC01, Famintzinia Hazsl. 1877KC01; Ceratiomyxida, CeratiomyxidaeC-SCL16]

Ceratiomyxa fruticulosa var. porioides (Alb. & Schw.) Lister 1894 [=Ceratium porioides Alb. & Schw. 1805, Ceratiomyxa porioides (Alb. & Schw.) Schroet. in Engler & Prantl 1889]NNB93

Cladostelium bisporumC-SCO04 [=Cavostelium bisporum Olive & Stoianovitch 1966NNB93, Echinostelium bisporum (Olive & Stoian.) Whitney & Olive apud Whitney, Benett & Olive 1982C-SCO04, NNB93]

Dictyostelia [Dictyosteliaceae, Dictyosteliacei, Dictyosteliales, Dictyostelida, Dictyosteliidae, Dictyostelinae, Dictyosteliomycetes, Pseudoplasmodidae]C-SCL16

Eumycetozoa [Mycetozoa, Mycetozoida, Mycetozoidea, Myxomyceteae, Myxomyceten, Myxomycophyta, Myxomyzeten, Plasmodiata, Zygosporeae]AB19

Myxogastria [Atrichae, Columelliferae, Enteridiea, Endosporea, Endosporeae, Endosporei, Endosporinei, Endotrichea, Eumycetozoina, Euplasmodida, Macromycetozoa, Myxogasteres, Myxogastrales, Myxogastrea, Myxogastres, Myxogastromycetidae, Myxomycetales, Myxomycetes, Myxomycota, Trichospermi]AS12

*Type species of generic name indicated

References

[AB19] Adl, S. M., D. Bass, C. E. Lane, J. Lukeš, C. L. Schoch, A. Smirnov, S. Agatha, C. Berney, M. W. Brown, F. Burki, P. Cárdenas, I. Čepička, L. Chistyakova, J. del Campo, M. Dunthorn, B. Edvardsen, Y. Eglit, L. Guillou, V. Hampl, A. A. Heiss, M. Hoppenrath, T. Y. James, A. Karnkowska, S. Karpov, E. Kim, M. Kolisko, A. Kudryavtsev, D. J. G. Lahr, E. Lara, L. Le Gall, D. H. Lynn, D. G. Mann, R. Massana, E. A. D. Mitchell, C. Morrow, J. S. Park, J. W. Pawlowski, M. J. Powell, D. J. Richter, S. Rueckert, L. Shadwick, S. Shimano, F. W. Spiegel, G. Torruella, N. Youssef, V. Zlatogursky & Q. Zhang. 2019. Revisions to the classification, nomenclature, and diversity of eukaryotes. Journal of Eukaryotic Microbiology 66: 4–119.

[AS12] Adl, S. M., A. G. B. Simpson, C. E. Lane, J. Lukeš, D. Bass, S. S. Bowser, M. W. Brown, F. Burki, M. Dunthorn, V. Hampl, A. Heiss, M. Hoppenrath, E. Lara, E. Le Gall, D. H. Lynn, H. McManus, E. A. D. Mitchell, S. E. Mozley-Stanridge, L. W. Parfrey, J. Pawlowski, S. Rueckert, L. Shadwick, C. L. Schoch, A. Smirnov & F. W. Spiegel. 2012. The revised classification of eukaryotes. Journal of Eukaryotic Microbiology 59 (5): 429–493.

[C-SCL16] Cavalier-Smith, T., E. E. Chao & R. Lewis. 2016. 187-gene phylogeny of protozoan phylum Amoebozoa reveals a new class (Cutosea) of deep-branching, ultrastructurally unique, enveloped marine Lobosa and clarifies amoeba evolution. Molecular Phylogenetics and Evolution 99: 275–296.

[C-SCO04] Cavalier-Smith, T., E. E.-Y. Chao & B. Oates. 2004. Molecular phylogeny of Amoebozoa and the evolutionary significance of the unikont Phalansterium. European Journal of Protistology 40: 21–48.

[KC01] Kirk, P. M., P. F. Cannon, J. C. David & J. A. Stalpers. 2001. Ainsworth & Bisby’s Dictionary of the Fungi 9th ed. CAB International: Wallingford (UK).

[LB90] Lousier, J. D., & S. S. Bamforth. 1990. Soil protozoa. In: Dindal, D. L. (ed.) Soil Biology Guide pp. 97–136. John Wiley & Sones: New York.

[NNB93] Neubert, H., W. Nowotny & K. Baumann. 1993. Die Myxomyceten: Deutschlands und des angrenzenden Alpenraumes unter besonderer Berücksichtigung Österreichs vol. 1. Ceratiomyxales, Echinosteliales, Liceales, Trichiales. Karlheinz Baumann Verlag: Gomaringen.

[TA16] Tekle, Y. I., O. R. Anderson, L. A. Katz, X. X. Maurer-Alcalá, M. A. Cerón Romero & R. Molestina. 2016. Phylogenomics of ‘Discosea’: a new molecular phylogenetic perspective on Amoebozoa with flat body forms. Molecular Phylogenetics and Evolution 99: 144–154.

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