Wallemiomycetes

Wallemia sebi in a Petri dish

Wallemia is a systematic standing isolated genus of Mushroom Fungi ( Basidiomycota ), which forms a class of its own Wallemiomycetes.

Features

The conidiophores are unbranched or sympodial growing continuously with conidiogenous cells and have a thin cell wall. The kondidiogenen cells are warty, and then as arthrospores are transformed into conidia. These are also warty, short cylindrical and rounded with time. The hyphae are septate. The sept is expanded in pores nearby. This is barrel -like and similar to a Doliporus.

Ecology and life

Wallemia occur worldwide, but prefer dry habitats. They were isolated from fruits, jams and dried with pure sugar and salted foods, sea salt, from the ground and from the air. Therefore, they are sometimes responsible for the spoilage of food. Some strains produce toxins Walleminol and Walleminon and cause subcutaneous infections in humans. Presumably, they also cause allergic reactions with the formation of farmer's lung.

Systematics and Taxonomy

Wallemia was first described in 1887 by Johan Olsen. Royall T. Moore then placed in a separate family within the order of Filobasidiales. 2005, however, they were provided with an uncertain systematic mapping in a separate class, the Wallemiomycetes.

The Index Fungorum lists the following three ways:

• Wallemia ichthyophaga Johan -Olsen 1887
• Wallemia Muriae (J. Kickx f ) Zalar & de Hoog 2005
• Wallemia sebi (Fr.) Arx 1970

Swell

• Zalar P, de Hoog GS, Schroers HJ, Frank JM, Gunde - Cimerman N. ( 2005). " Taxonomy and phylogeny of the genus xerophilic Wallemia ( Wallemiomycetes and Wallemiales, cl et ord. Nov. ) ". Antonie Van Leeuwenhoek International Journal of General and Molecular Microbiology 87: 311-28. DOI 10.1007/s10482-004-6783-x