Flashcards on Hemoparasites of Reptiles

Hemoparasites of Reptiles: Plasmodium Species Overview

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When were the first reptilian malarial parasites recognized and which researcher reported Plasmodium agamae and P. mabuiae in Sudanese lizards?

In the first decade of the 20th century; Wenyon (1909a) reported Plasmodium agamae and P. mabuiae in agamid and scincid lizards of the Sudan.

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Plasmodiid parasites

402 cards

Card 1

Question: When were the first reptilian malarial parasites recognized and which researcher reported Plasmodium agamae and P. mabuiae in Sudanese lizards?

Answer: In the first decade of the 20th century; Wenyon (1909a) reported Plasmodium agamae and P. mabuiae in agamid and scincid lizards of the Sudan.

Card 2

Question: Which two Plasmodium species from Brazilian lizards were described in 1909 with priority to Wenyon's discovery?

Answer: Plasmodium diploglossi and Plasmodium tropiduri (Aragão and Neiva, 1909).

Card 3

Question: How many reptilian Plasmodium species and subspecies were recognized by Garnham in 1966?

Answer: 29 species and subspecies were recognized by Garnham in 1966.

Card 4

Question: How did the number of known reptilian plasmodiid taxa change from 1966 to 1989 and then to 2007?

Answer: By 1989 there were 87 taxa known (Telford, 1994). By 2007 there were 101 Plasmodium sensu stricto species/subspecies described or under description, p

Card 5

Question: Which related genera and approximate species counts were listed alongside Plasmodium by 2007?

Answer: Garnia (10), Fallisia (10), Haemocystidium (14), Saurocytozoon (2), and Progarnia (1).

Card 6

Question: What largely contributed to the proliferation of described reptilian plasmodiid species after the 1960s?

Answer: Long-term residence in endemic areas by parasitologists allowing extensive collections, rather than brief visits by traveling scientists.

Card 7

Question: What shift in research focus regarding reptilian plasmodiids occurred more recently (after taxonomic studies)?

Answer: Interest shifted to using plasmodiids as examples supporting ecological theory, and more recently to genomic analyses.

Card 8

Question: Why do the authors say genomic analysis results remain 'tantalizing but far from definitive' for plasmodiid systematics?

Answer: Because a broad spectrum of known species has not yet been studied genomically, so systematics/phylogenetic relationships must still rely on morpholog

Card 9

Question: Before 1970, what aspect of saurian Plasmodium species life cycles remained unknown?

Answer: The complete sporogony (development in the insect vector) of a saurian Plasmodium species remained unknown until 1970.

Card 10

Question: What early observations suggested possible mosquito involvement in saurian Plasmodium sporogony?

Answer: Occasional reports of oocysts on the midguts of culicine mosquitoes after experimental feedings on infected lizards, such as an oocyst on Aedes aegypt