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Parasitología al día

versão impressa ISSN 0716-0720

Resumo

SOARES, CLEBER O; MASSARD, CARLOS L; FONSECA, ADIVALDO H  e  SOUZA, PAULO C A. PLASMATIC EXOERYTHROCYTIC MEROGONY IN Plasmodium (Novyella) juxtanucleare (APICOMPLEXA: PLASMODIIDAE). Parasitol. día [online]. 1999, vol.23, n.3-4, pp.87-90. ISSN 0716-0720.  http://dx.doi.org/10.4067/S0716-07201999000300004.

A research about plasmatic exoerythrocytic meronts of the Plasmodium juxtanucleare in crossbred fowls from Seropédica municipality, Rio de Janeiro state, Brazil, was made. The hemoscopical exam of fowls with high erythrocytic parasitaemia (>10%) showed free exoerythrocytic meronts with an average size of 7.492 ± 2.308 X 5.926 ± 2.048 µm; containig about 15 ± 16.92 merozoites. The meronts showed to be pleomorphic characteristics from spherical to oval with merozoites of basophilic nucleus. They also showed torn meronts with free merozoites. All the observations reported and discussed about this subject make us conclude that P. juxtanucleare studied strain has a paraerythrocytic merogony. It suggests that P. juxtanucleare is an evolutionary plasmodia species intermediate between the plasmodia of reptiles and the plasmodia of mammals.

Palavras-chave : Plasmodium juxtanucleare; Gallus gallus; Plasmatic exoerythrocytic merogony; Paraerythrocytic merogony.

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