Folia Parasitologica, vol. 60 (2013), issue 3

Folia Parasitologica 60[3] 225-231 (2013) | 10.14411/fp.2013.025

Plasmodium, Saurocytozoon and Haemocystidium parasites (Apicomplexa: Plasmodiidae) from the rock agama, Laudakia caucasia (Sauria: Agamidae), in southern Asia

Sam R. Telford Jr.
The Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA

Abstract: The rock agama, Laudakia caucasia Eichwald (Agamidae) is host to Plasmodium caucasica sp. n. and Saurocytozoon agamidorum sp. n. in western Pakistan. Plasmodium caucasica is characterized by very large meronts, 11-21 by 8-17 µm that produce 32-67 merozoites, which nearly fill the host erythrocyte, and smaller, ovoid to elongate gametocytes, 6-14 by 2.5-6 µm, with length by width (LW) 21-55 µm2, and L/W ratio 1.0-4.0. Host cells are usually mature erythrocytes. In Azerbaijan, P. caucasica parasitizes immature erythroid cells. Dimensions of meronts are 10-16 by 6-12 µm, and merozoite numbers are 12-44. Gametocytes are 6-14 by 3-6 µm, with LW 31-56 µm2, and L/W ratio 1.0-4.0. Saurocytozoon agamidorum sp. n. gametocytes are 6.5-13 µm in diameter, with LW 35-79 µm2, and L/W ratio 1.0-2.2. They occupy lymphocytes as host cells, which are greatly distorted by gametocyte presence and often show nuclei nearly divided into two portions, one portion at each end of the cell. Haemocystidium grahami (Shortt, 1922), redescribed from material found in L. caucasia from Azerbaijan, has rounded to elongate gametocytes, 8-19.5 by 4-8 µm, LW 60.5-102 µm2, and L/W ratio 1.0-4.5. The prominent light golden pigment granules often coalesce to nearly cover the surface of the gametocyte. The presence of P. caucasica and S. agamidorum extends the range of the two genera in saurian hosts throughout much of the southern Asia mainland.

Keywords: blood parasites, plasmodiids, Plasmodium caucasica sp. n., Saurocytozoon agamidorum sp. n., Haemocystidium grahami, lizards, Pakistan, Azerbaijan

Received: November 26, 2012; Accepted: February 4, 2013; Published: July 23, 2013


References

  1. Aliyev M.A. 2000: [Haemoparasites of the reptiles of Absheron Peninsula and Gobustan]. Azerbaijan Akad. Nauk. 28 pp. (In Russian.)
  2. Alvarez Calvo J., Milan Jimenez F. 1974: On some haemoparasites from Spanish reptiles. Proc. 3rd International Congress Parasitol, Munich, 1974, 1: abstracts of papers p. 19
  3. Lainson R., Landau I, Shaw J.J. 1974: Observations on non-pigmented haemosporidia of Brazilian lizards, including a new species of Saurocytozoon in Mabuya mabouya (Scincidae). Parasitology 69: 215-233 Go to original source... Go to PubMed...
  4. Lainson R., Shaw J.J. 1969: A new haemosporidian of lizards, Saurocytozoon tupinambi gen. nov., sp. nov. in Tupinambis nigropunctatus (Teiidae). Parasitology 59: 159-162 Go to original source... Go to PubMed...
  5. Ovezmukhammedov A. 1987: [Protistofauna of reptiles.] A. Berdiev (Ed.) Ilim, Turkman S.S.R., Ashkabad, 373 pp. (In Russian.)
  6. Shortt H.E. 1922: Review of the position of the genus Haemocystidium (Castellani and Willey, 1904), with a description of two new species. Ind. J. Med. Res. 9: 814-826
  7. Shortt H.E. 1962: Exo-erythrocytic schizont of Haemoproteus, parasite of the gecko Hemidactylus sp. in the liver. Trans. Roy. Soc. Trop. Med. Hyg. 56: 3
  8. Telford S.R., Jr. 1983: Saurocytozoon parasites (Haemosporidia: Plasmodiidae) from southeast Asian skinks. J. Parasitol. 69: 1141-1145 Go to original source...
  9. Telford S.R., Jr. 1988: A contribution to the systematics of the reptilian malaria parasites, family Plasmodiidae (Apicomplexa: Haemospororina). Bull. Florida State Mus., Biol. Sci. 34: 65-96
  10. Telford S.R., Jr. 1996: Two new species of Haemocystidium Castellani and Willey (Apicomplexa: Plasmodiidae) from Pakistani lizards, and the support their meronts provide for the validity of the genus. Syst. Parasitol. 34: 197-214 Go to original source...
  11. Telford S.R., Jr. 2009: Hemoparasites of the Reptilia. CRC Press, Taylor and Francis Group, Boca Raton, Florida, 376 pp
  12. Telford S.R., Jr., Moler P.E., Butler J.F. 2012. Four additional Hepatozoon species (Apicomplexa: Hepatozoidae) from north Florida ratsnakes, genus Pantherophis. Folia Parasitol. 59: 167-172 Go to original source... Go to PubMed...