Chytridiomycetes mean little pot like fungus . They are most primitive fungi . Some anaerobic chytrids are found in stomuch of cow . Reproductive bodies may be on host surface ( epibiotic ) , within the host cells ( endobiotic ) , single ( monocentric ) or more than one ( polycentric ) . Zoospores are uniflagellate ( whiplash type ) .
Some of the 4 orders are -
1. Chytridiales - synchytrium
2. Blastocladiales - allomyces
Synchytrium
Class - Chytrdiomycetes
Order - Chytridiales
Family - Synchytriaceae
Genus - Synchytrium
Synchytrium endobioticum causes black wart disease of potato . In this disease dark brown , warty cauliflower like excrescences are formed on tuber . Synchytrium is unicellular , holocarpic monocentric fungus .