- Vaucheria has
distinctive large, multinucleate zoospores with many pairs of
unequal flagella. These "compound zoospores" result
from incomplete cleavage during the division process that takes
place in the apical portion of the filaments. Vaucheria
can also reproduce asexually via akinetes or large, multinucleate
aplanospores.
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- During sexual reproduction, antheridia produce
numerous colorless uninucleate sperm, while oogonia each develop
a single uninucleate egg. These reproductive structures may develop
on special branches or on the main thallus. The sperm unite with
the egg within the oogonium to form a thick-walled zygote. The
antheridia and oogonia vary in morphology and are used to distinguish
among the different species.
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