Tetramyxa

Tetramyxa is a cercozoan protist, member of the plasmodiophores, parasite of several flowering plants. It was first described by Karl [Ritter von Goebel|Karl von Goebel] in 1884, in his work Flora. The genus is characterized by the appearance of resting spores in groups of four.

Taxonomy

There are two accepted species:

Tetramyxa parasitica – parasite of Zannichellia, Potamogeton and Ruppia roots.
Tetramyxa marina – parasite of Halophila stipulacea petioles.

The following additional species, though recognized as Tetramyxa, are listed as doubtful in some sources:

Tetramyxa rhizophaga – parasite of Juniperus communis roots.
Tetramyxa triglochinis – parasite of Triglochin maritimum stems, ovaries and stamens.
Tetramyxa elaeagni – parasite of Elaeagnus multiflora roots.