| Tartalmi leírás: |
: For several species of fish myxosporeans known at present, the musculature has
been designated as the location of intrapiscine development. In the majority of these cases, plas-
modia and spores are actually found in the muscle cells, but there are also myxosporeans that
select intermuscular connective tissue, fish bones, nerves and capillaries of the musculature as
their site of development. During the plasmodial development of
Myxobolus, Henneguya
and
Thelohanellus
species in fish inhabiting Hungarian freshwaters, 3 main locations of development
inside the muscles were identified. Pseudodispar-type plasmodia, such as
M. cyprini, M. musculi
and
M. pseudodispar
, form plasmodia intracellularly in the muscle cells, while the plasmodia of
M. pfeifferi, M. sandrae
and
T. hovorkai
develop in the intermuscular connective tissue. A similar
development in the connective tissue of the ventricle and the bulbus arteriosus was observed for
M. dogieli,
a heart parasite found in some cyprinid fishes. The third type of development is repre-
sented by
M. tauricus,
which prefers the collagenous elements of the fin rays, but its plasmodia are
commonly found in the muscle attached to the fish bones.
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