Threatened species of Plasmodiophoromycota

This is a group of endoparasites recognised in both the fungal and protist kingdoms. They also cause root rots and hypertrophic/hyperplasia disorders of plant roots, are vectors of plant viruses, but are not major economic pests.

The taxonomy of fungi is variable depending on the author. Phyla, classes and subclasses are often synonymous in different hierarchical systems.