Abstract

ELISEI, CARINA; SOUZA, PAULO C. A.; MASSARD, CARLOS L.  and  SOARES, CLEBER O.. MORPHOLOGICAL AND MORPHOMETRICAL CHARACTERIZATION OF Plasmodium juxtanucleare (APICOMPLEXA: PLASMODIIDAE). Parasitol. día [online]. 2001, vol.25, n.1-2, pp. 12-18. ISSN 0716-0720.  http://dx.doi.org/10.4067/S0716-07202001000100003.

The morphological and morphometric analysis of Plasmodium juxtanucleare (MSS-47) isolate were done. The parasitemia was evaluated, and the smaller diameter (sd), the bigger diameter (BD) and the morphometric index (MI = sd/BD) of erythrocytic forms from experimentally inoculated chickens, were measured. In 106 trophozoites, were showed point, ovoid, ring, elliptical, pear and round forms, with predominance of the ovoid and elliptical forms. The average measure of the trophozoites was 1.802 ± 0.313 x 1.230 ± 0.208 mm, with MI = 0.623 ± 0.110 mm. In 98 schizonts, were showed ovoid, elliptical, pear and ameboid forms, with predominance of the ovoid and pear forms. The average measure of the schizonts was 2.809 ± 0.187 x 1.820 ± 0.386 mm, with MI = 0.643 ± 0.120 mm. In 18 macrogametocytes, were showed ovoid, round, elliptical and pear forms, with predominance of the ovoid and elliptical forms. The average measure of the macrogametocytes was 3.559 ± 0.883 x 2.363 ± 0.207 mm, with MI = 0.766 ± 0.078. In 34 microgametocytes, were showed ovoid, round, elliptical and pear forms, with predominance of the ovoid and elliptical forms. The average measure of the microgametocytes was 3.891 ± 0.946 x 2.386 ± 0.783 mm, with MI = 0.505 ± 0.103. The MSS-47 isolate of P. juxtanucleare was characterized as highly pleomorphic

Keywords : Plasmodium juxtanucleare; morphological; morphometric.