Frantisekia
Frantisekia is a genus of Stielporlingsverwandten ( Polyporaceae ). It was first described in 2007; she bears her name in honor of the Czech mycologist František Kotlaba. Frantisekia comprises a total of three species of fungi, previously the pore sponges ( Poria ), Antrodiella and Weißporlingen ( Tyromyces ) were assigned and live as saprophytes. The type species, after which the genus was described, Frantisekia fissiliformis (formerly Poria fissiliformis ).
- 3.1 Outer systematics
- 3.2 Internal systematics
- 5.1 Literature
- 5.2 External links
- 5.3 Notes and references
Features
Fruiting bodies
The fungi of the genus form once a year fruiting bodies, which are white or ocher and have a fleshy consistency. When dried, they become discolored or brittle. The fruiting bodies are hat-shaped, broad and back or bent. The fruit layer is sponge-like; the tubes are strongly decurrent and have small pores ( 6-10 per millimeter ).
Microscopic characteristics
The fungus flesh of Frantisekia species is pseudodimitisch, that is, it consists of generative hyphae which serve the reproduction of the flesh, and Pseudoskeletthyphen, which give the fruit body strength.
The generative hyphae have buckles, their walls are thin to slightly pudgy. Under the microscope they appear hyaline or slightly yellowish color. In the trama or in the tubes flattened pseudoskelettale hyphae are present, which, unlike real Skeletthyphen, have few buckles and thick septa, and thus represent generative hyphae; they are also are easy cyanophil.
The fungi do not have cystidia, but sometimes over pseudozystidische structures called Zystidiolen. The basidia are slender and club-shaped, set with four spores and have buckles. The oblong- ellipsoidal to cylindrical basidiospores react neither with Melzer's reagent or with cotton blue.
Damage
On Hardwood call out white rot fungi of the genus. In this case, the wood is fibrous and foxing, it bleaches out strong. To the affected regions run dark lines that separate from the rest of the wood. In the final stage of infestation, the wood dissolves more and more and gets a spongy consistency.
Ecology and distribution
Frantisekia affects dead wood and feeds on the lignin content of the wood. The three known species are widespread Holarctic (F. fissiliformis ) westpaläarktisch ( fissliformis F. and F. mentschulensis ) ostpaläarktisch (F. ussurii ).
System
Outer systematics
The outer system of Frantisekia is still unclear. Spirin and Zmitrowitsch see in certain morphological structures such as the fleshy fruiting bodies, the grown tubes or thin-walled hyphae an indication of a close relationship to the genus Ceriporiopsis. However, since the latter is very heterogeneous and probably contains several genera, is also not clear this money.
Inside systematics
Frantisekia comprises by Spirin and Smitrowitsch three ways:
- Frantisekia fissiliformis ( syn. Antrodiella fissiliformis )
- Frantisekia mentschulensis (syn Tyromyces aurantiacus )
- Frantisekia ussurii ( syn. Poria ussurii )
Etymology
The genus was named by Ivan Smitrowitsch and Vyacheslav Spirin by František Kotlaba the occasion of his 80th birthday in 2007. The publication of the first description was in a Kotlaba issue dedicated Česká mycology.