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Urediniospores (or uredospores) are thin-walled
spores produced by the uredium, a
stage in the life-cycle of rusts.
Urediniospores develop in the uredium...
-
repeating spore stage is formed,
numbered "II", the
urediospores in dry
pustules called uredinia.
Urediospores are
dikaryotic and can
infect the same host that...
-
confers an
infection of
urediospores.
Urediospores germinate and form
haustoria that
penetrates into the leaves.
Urediospore sori is
produced on the undersides...
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There must be a
presence of
water on the leaf for the
urediospores to infect,
although dry
urediospores can
survive up to six w****s
without water. Dispersal...
- also
overwinter in the soil. It has been
grown in lab conditions, from
urediospores. (Pers.) Niessl, Verh. nat. Ver. Brünn 10: 162 (1872) "Species Fungorum...
- radicans. The
color of this rust
comes from "its a****ual
spores called urediospores".
Poison ivy rust
infections become evident in
spring as "light pink...
- grains. He
noticed that P.
graminis produced reddish summer spores or "
urediospores", and
darker winter spores or "teleutospores". He
inoculated the leaves...
-
fungus does not
produce urediospores, and thus
spruce broom rust is not a
truly macrocyclic disease. The lack of
urediospores prevents reinfection of...
-
leave a
rusty deposit if
touched and they
contain a
large number of
urediospores that
spread the rust. In the late season,
pustules that are a black-brown...
-
spore phase. Near the
beginning of autumn,
production of rust-colored
urediospores is
replaced by the
formation of
black over-wintering spores.
These spores...
