The life cycle and host specificity of Psychodiella sergenti n. sp. and Ps. tobbi n. sp. (Protozoa: Apicomplexa) in sand flies Phlebotomus sergenti and Ph. tobbi (Diptera: Psychodidae)

Journal of Invertebrate Pathology
Lucie LantovaJan Votýpka

Abstract

Two new gregarines in the recently erected genus Psychodiella (formerly Ascogregarina), Psychodiella sergenti n. sp. and Psychodiella tobbi n. sp., are described based on morphology and life cycle observations conducted on larvae and adults of their natural hosts, the sand flies Phlebotomus sergenti and Phlebotomus tobbi, respectively. The phylogenetic analyses inferred from small subunit ribosomal DNA (SSU rDNA) sequences indicate the monophyly of newly described species with Psychodiella chagasi. Ps. sergenti n. sp. and Ps. tobbi n. sp. significantly differ from each other in the life cycle and in the size of life stages. The sexual development of Ps. sergenti n. sp. (syzygy, formation of gametocysts and oocysts) takes place exclusively in blood-fed Ph. sergenti females, while the sexual development of Ps. tobbi n. sp. takes place also in males and unfed females of Ph. tobbi. The susceptibility of Phlebotomus perniciosus, Phlebotomus papatasi, Ph. sergenti, Ph. tobbi, and Phlebotomus arabicus to both gregarines was examined by exposing 1st instar larvae to parasite oocysts. High host specificity was observed, as both gregarines were able to fully develop and complete regularly the life cycle only in their natural hosts. Both ...Continue Reading

Citations

May 14, 2014·Journal of Vector Ecology : Journal of the Society for Vector Ecology·Lorena G CaligiuriChristina B McCarthy
May 7, 2014·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Lucie Lantova, Petr Volf
Nov 16, 2017·Parasite : Journal De La Société Française De Parasitologie·Phillip LawyerPetr Volf
Mar 12, 2017·Scientific Reports·Glenda DiasJosé Lino-Neto
Nov 28, 2015·Journal of Vector Ecology : Journal of the Society for Vector Ecology·Leonardo de Souza RochaReginaldo Peçanha Brazil
Jul 28, 2019·Trends in Parasitology·Sonja RueckertAnastasios D Tsaousis

❮ Previous
Next ❯