Chytridiomycota: Chytridiales

The zoospores (motile spores, bearing a flagellum) penetrate an epidermis cell of the host plant. Then follows a series of divisions, eventually filling the parasitised cell with a mass that functions as a sporangium. From there new zoospores are released, that infect new cells, and transform there into thick-walled resting sporangia that will hibernate. The infected epidermis cell may become swollen, and also the adjacent cells may be enlarged and discoloured.

Because zoospores can survive and move only in water, Synchytriaceae mainly live on low-lying parts of a plant and in, at least temporary, damp situations.

references

Alexopoulos, Mims & Blackwell (1996a), Karling (1964a), Rytz (1907).

26/12/2015

The zoospores (motile spores, bearing a flagellum) penetrate an epidermis cell of the host plant. Then follows a series of divisions, eventually filling the parasitised cell with a mass that functions as a sporangium. From there new zoospores are released, that infect new cells, and transform there into thick-walled resting sporangia that will hibernate. The infected epidermis cell may become swollen, and also the adjacent cells may be enlarged and discoloured.

Because zoospores can survive and move only in water, Synchytriaceae mainly live on low-lying parts of a plant and in, at least temporary, damp situations.

references

Alexopoulos, Mims & Blackwell (1996a), Karling (1964a), Rytz (1907).

26/12/2015

mod 28.vi.2017