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)

Lantová, Lucie; Ghosh, Kashinath; Svobodová, Milena; Braig, Henk R.; Rowton, Edgar; Weina, Peter J.; Volf, Petr; Votýpka, Jan

doi:10.1016/j.jip.2010.07.001

Cited by 19 publications

(41 citation statements)

References 16 publications

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“…The presence of these parasites is recorded especially in digestive tracts of larvae and adults, Malpighian tubules, fat bodies and eggs 10 . In the reproductive system of insects, gregarines were reported only in accessory glands and spermathecae of females 9, 10, 12 . As part of an ongoing study of spermiogenesis in the stored grain pest, Tribolium castaneum (Coleoptera: Tenebrionidae), we report the novel occurrence of a gregarine species in seminal vesicles of insects.…”

Section: Introductionmentioning

confidence: 99%

First record of gregarines (Apicomplexa) in seminal vesicle of insect

Dias

Dallai

Carapelli

et al. 2017

Sci Rep

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Gregarines (Apicomplexa) are a diverse group of protozoan parasites, which infects gut and other body cavities of invertebrate hosts. In reproductive system of insects, gregarine has been reported only in the accessory glands and spermathecae of females; therefore, this is the first report of a gregarine species in seminal vesicles of insects. Different developmental stages, including sporozoytes, oocysts and trophozoites were described from morphological descriptions using light and electron transmission microscopy. The parasites were described in seminal vesicles of the beetle Tribolium castaneum a model organism and an important insect pest. DNA sequence analysis suggests that the protozoan parasite was an Ascogregarina sp.

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Section: Introductionmentioning

confidence: 99%

First record of gregarines (Apicomplexa) in seminal vesicle of insect

Dias

Dallai

Carapelli

et al. 2017

Sci Rep

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“…Oocysts of several genera, such as Ascogregarina, Psychodiella, Mattesia, Farinocystis Weiser, Monocytis, are all lemon-shaped with other specific characters (Lantová et al, 2010;Roychoudhury et al, 2007;Schrével and Philippe, 1993;Valigurová and Koudela, 2006;Weiser, 1953). The gregarine from T. pui was characterized by lemon-shaped oocysts with apparent truncate round ends, which were more similar to those of the genus Ascogregarina.…”

Section: Discussionmentioning

confidence: 99%

“…ML and Bayesian methods yielded almost identical topologies. Both phylogenetic trees indicated that the newly described gregarine was more related to Ascogregarina species and Paraschneideria metamorphosa Nowlin (1922) than to other gregarines including species with lemon-shaped oocysts (Lantová et al, 2010;Schrével and Philippe, 1993;Valigurová and Koudela, 2006) (Fig. 4).…”

Section: Molecular Identification Of the Gregarine Parasite From T Pmentioning

confidence: 99%

Characterization of a coelomic gregarine parasite from Thitarodes pui (Lepidoptera: Hepialidae) in the Tibetan Plateau

Sun

Peng

et al. 2012

Journal of Invertebrate Pathology

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“…sergenti (formation of syzygies, gametocysts and oocysts) occurs only in female sand flies and is conditioned by a bloodmeal intake (Lantova et al . 2010). The aim of the present study was to document the Ps.…”

Section: Introductionmentioning

confidence: 99%

The development of Psychodiella sergenti (Apicomplexa: Eugregarinorida) in Phlebotomus sergenti (Diptera: Psychodidae)

Lantová¹,

Volf²

2012

Parasitology

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SUMMARYPsychodiella sergenti is a recently described specific pathogen of the sand fly Phlebotomus sergenti, the main vector of Leishmania tropica. The aim of this study was to examine the life cycle of Ps. sergenti in various developmental stages of the sand fly host. The microscopical methods used include scanning electron microscopy, transmission electron microscopy and light microscopy of native preparations and histological sections stained with periodic acid-Schiff reaction. Psychodiella sergenti oocysts were observed on the chorion of sand fly eggs. In 1st instar larvae, sporozoites were located in the ectoperitrophic space of the intestine. No intracellular stages were found. In 4th instar larvae, Ps. sergenti was mostly located in the ectoperitrophic space of the intestine of the larvae before defecation and in the intestinal lumen of the larvae after defecation. In adults, the parasite was recorded in the body cavity, where the sexual development was triggered by a bloodmeal intake. Psychodiella sergenti has several unique features. It develops sexually exclusively in sand fly females that took a bloodmeal, and its sporozoites bear a distinctive conoid (about 700 nm long), which is more than 4 times longer than conoids of the mosquito gregarines.

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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)

Cited by 19 publications

References 16 publications

First record of gregarines (Apicomplexa) in seminal vesicle of insect

First record of gregarines (Apicomplexa) in seminal vesicle of insect

Characterization of a coelomic gregarine parasite from Thitarodes pui (Lepidoptera: Hepialidae) in the Tibetan Plateau

The development of Psychodiella sergenti (Apicomplexa: Eugregarinorida) in Phlebotomus sergenti (Diptera: Psychodidae)

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