Mixia osmundae

Mixia osmundae
Mixia osmundae
Systematics
Subdivision : Pucciniomycotina Class : Mixiomycetes Order : Mixiales Family : Mixiaceae Genre : Mixia Type : Mixia osmundae
Scientific name of the  class
Mixiomycetes
R. Bauer, Begerow, JP Samp., M. Weiss & Oberw.
Scientific name of the  order
Mixiales
R. Bauer , Begerow , JP Samp. , M. Weiss & Oberw.
Scientific name of the  family
Mixiaceae
CL Kramer
Scientific name of the  genus
Mixia
CL Kramer
Scientific name of the  species
Mixia osmundae
( Nishida ) CL Kramer

Mixia osmundae is a type of mushroom (Basidiomycota) thatparasitizeson king ferns ( Osmunda ). The species alone forms the class Mixiomycetes .

Features and way of life

Mixia osmundae is dimorphic, i.e. it grows like a yeast and with hyphae . The spores are ejected, but it has not been clarified whether they are meio- or mitospores. The hyphae are polynuclear and have few septa .

In the host tissue, the hyphae grow along the host's cell surface, the host cell walls are thickened in the contact area. Under the cuticle of the upper and lower surface of the leaf, the hyphae form large, sac-like swellings. From these sporogenic cells grow up. The numerous spores are formed exogenously, simultaneously and enteroblastically.

Systematics

The Mixiomycetes are the sister group of the Agaricostilbomycetes within the Pucciniomycotina . They only comprise an order with a single species:

• Mixiomycetes
  • Mixiales
    • Mixiaceae
      • Mixia
        • Mixia osmundae

The species was counted as a hose fungus until the 1990s . Within the Pucciniomycotina they are isolated and are not closely related to any group.

swell

• MC Aime et al .: An overview of the higher level classification of Pucciniomycotina based on combined analyzes of nuclear large and small subunit rDNA sequences . Mycologia, Volume 98, 2006, pp. 896-905.
• Robert Bauer, Dominik Begerow, José Paulo Sampaio, Michael Weiß, Franz Oberwinkler: The simple-septate basidiomycetes: a synopsis . Mycological Progress, Volume 5, 2006, pp. 41-66, ISSN  1617-416X , doi : 10.1007 / s11557-006-0502-0 .

Individual evidence

1. ↑ MC Aime et al .: An overview of the higher level classification of Pucciniomycotina based on combined analyzes of nuclear large and small subunit rDNA sequences . Mycologia, Volume 98, 2006, pp. 896-905.
2. ↑ DS Hibbett et al .: A higher-level phylogenetic classification of the Fungi . Mycological research, Volume 111, 2007, pp. 509-547, PMID 17572334 (PDF; 1.3 MB)
3. ^ Robert Bauer, Dominik Begerow, José Paulo Sampaio, Michael Weiß, Franz Oberwinkler: The simple-septate basidiomycetes: a synopsis . Mycological Progress, Volume 5, 2006, pp. 41-66