A taxonomic guide to the species of Didymium (Didymiaceae, Physarales, Myxomycetes) I. The stipitate species

Clark, John L.

doi:10.5943/ajom/1/1/4

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…This lime is scattered on the peridium or forms a crust (Didymium and Mucilago), or is united into distinct scales (Lepidoderma). Didymium (sporangial or plasmodiocarpic), is separated from Mucilago (aethalial) on the basis of sporocarp form (Clark and Haskins 2018). The peridium is the outer layer of the sporotheca.…”

Section: Introductionmentioning

confidence: 99%

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A New Myxomycetes record (Myxogastria) from Turkey: Didymium listeri Massee

Baba

Sevindik

2021

Kahramanmaraş Sütçü İmam Üniversitesi Tarım Ve Doğa Dergisi

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Myxomycetes called Plasmodial slime moulds, or true slime molds are eukaryotic microorganisms. They live in a variety of ecosystems.Genus Didymium Schrad. (family Didymiaceae) is a myxomycete taxon containing calcareous peridia (order Physarida) and noncalcareous capillitium. Didymium listeri Massee were recorded in this study for the first time from Turkey. D. listeri sporocarp was found in the laboratory by moist chamber culture. In addition, the description, distribution, photograph and identification key of the taxon were presented.

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Section: Introductionmentioning

confidence: 99%

“…The spores are globose (rarely ovoid), brownish, and ornamented. There are the variations in size, color and ornamentation within a species varying more than is generally stated (Martin and Alexopoulos 1969;Clark and Haskins 2018). The species of Didymium are often widely distributed.…”

Section: Introductionmentioning

confidence: 99%

A New Myxomycetes record (Myxogastria) from Turkey: Didymium listeri Massee

Baba

Sevindik

2021

Kahramanmaraş Sütçü İmam Üniversitesi Tarım Ve Doğa Dergisi

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New Records of Myxogastria (Mycetozoa) from the Eastern Mediterranean Region of Turkey

Baba

Sevindik

2022

Biol Bull Russ Acad Sci

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Multigene phylogeny of the order Physarales (Myxomycetes, Amoebozoa): shedding light on the dark-spored clade

García-Martín,

Zamora,

Lado

2023

persoonia

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The class Myxomycetes consists of free-living protists characterised by their complex life cycle, which includes both microscopic (amoebae, flagellates and cists) and macroscopic stages (spore-bearing fruiting bodies, sclerotia, and plasmodia). Within it, the order Physarales, with more than 450 recognised species, constitutes the largest group. Although previous studies have shown the polyphyly of some of the traditionally accepted genera, its internal phylogenetic relationships have remained uncertain so far, and together with the lack of data for some key species, it prevented any taxonomic and nomenclatural revisions. We have compiled a substantially expanded dataset in terms of both taxon sampling and molecular data, including most of the genera described to date and four unlinked DNA regions, for which we provide partial sequences: nSSU, EF-1α, α-Tub, and mtSSU, analysed through maximum likelihood and Bayesian methods. Our results confirm that the family Didymiaceae is paraphyletic to the rest of Physarales. Within Didymiaceae s.lat., the recent reinstatement of the genus Polyschismium for most species traditionally ascribed to Lepidoderma, except for the type (Ronikier et al. 2022), is further supported here, as well as the definite inclusion of the genus Mucilago in Didymium and Lepidoderma s.str. (L. tigrinum) in Diderma (Prikhodko et al. 2023). Additionally, the genus Diachea is redefined to include some species previously treated in Physaraceae (Craterium spp. with true columella). Within the monophyletic family Physaraceae, most genera are recovered as polyphyletic, suggesting that they should be no longer accepted as currently defined. However, the lack of resolution of some relationships within Physaraceae prevents us from resuscitating or creating several new genera to mitigate polyphyly. Among the well-defined groups with clear molecular signatures, we propose two taxonomic and nomenclatural changes at generic level: 1) a new genus, Nannengaella, is proposed for a major clade containing Physarum globuliferum and other species with heavily calcified sporophores and, often, a true calcareous columella; 2) Lignydium is resurrected for the clade containing Fuligo muscorum. Additionally, Trichamphora is suggested as the correct name for the clade containing Physarum pezizoideum. The taxonomy and nomenclature of some provisional genera, currently synonymous with Fuligo and Physarum, are disentangled, and we provide a comprehensive and updated nomenclatural conspectus that can be used when better resolved phylogenies are obtained. In total, 22 new combinations are proposed in different genera. A provisional key to the genera of the order is also provided.

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A taxonomic guide to the species of Didymium (Didymiaceae, Physarales, Myxomycetes) I. The stipitate species

Cited by 3 publications

References 4 publications

A New Myxomycetes record (Myxogastria) from Turkey: Didymium listeri Massee

A New Myxomycetes record (Myxogastria) from Turkey: Didymium listeri Massee

New Records of Myxogastria (Mycetozoa) from the Eastern Mediterranean Region of Turkey

Multigene phylogeny of the order Physarales (Myxomycetes, Amoebozoa): shedding light on the dark-spored clade

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