Welcome to the Mycosphaerella and its anamorphs database

The genus Mycosphaerella in the broad sense comprises one of the largest genera in the phylum Ascomycota where it has evolved over a broad developmental and physiological adaptationrange which includes endophytes, saprophytes and symbionts. Together with its more than 30 anamorph genera, the most noteworthy of these including Septoria, Cercospora, Pseudocercospora, Ramularia, Dothistroma etc, it contains more than 10,000 species names. For the major part Mycosphaerella consists of narrow host range, follicolous plant pathogens that are the cause of significant economical losses in both temperate and tropical crops worldwide; however, it is not uncommon to also encounter species with a broad host range.  Although originally thought to be monophyletic, in recent years Mycosphaerella was shown to be polyphyletic and teleomorph genera such as Davidiella (with Cladosporium anamorphs) and Teratosphaeria (frequently with Readeriella and Kirramyces anamorphs) were split off the genus. The recent advance in molecular techniques and the continuous effort to obtain living cultures of previously described species, have made it finally possible to start resolving the Mycosphaerella generic complex into clearly defined species and genera.

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