当前位置： SCI文献检索 > FOLIA PARASITOLOGICA期刊下所有文献 > Eimeria tamimi sp. n. (Apicomplexa: Eimeriidae) from the rock hyrax (Procavia capensis jayakari) in central Saudi Arabia.

Eimeria tamimi sp. n. (Apicomplexa: Eimeriidae) from the rock hyrax (Procavia capensis jayakari) in central Saudi Arabia.

Abstract：

:Faecal samples from the rock hyrax (Procavia capensis jayakari Thomas) were collected from the Ibex Reserve in central Saudi Arabia. Eimerian oocysts, which are believed to represent a new species described here as Eimeria tamimi sp. n., were detected in 40 out of 93 samples. Oocysts were fully sporulated in 24-48 hours at 25 ± 2 °C. Sporulated oocysts of E. tamimi sp. n. were ovoid, measuring 35-42 × 19-25 μm (39 × 23 μm), a length/width ratio 1.5-2 (1.7). Oocyst wall was bilayered and measured 1.5 μm in thickness. Micropyle, oocyst residuum and polar granules were not present. Sporocysts are elongate, measuring 12-18 × 9-12 μm (15 × 10 μm), with a length/width ratio 1.1-1.8 (1.5) prominent Stieda bodies and sporocyst residuum. Experimental infection of two clinically healthy rock hyraxes with sporulated oocysts of E. tamimi sp. n. resulted in shedding unsporulated oocysts 5-10 days post infection. Partial sequences of 18S ribosomal RNA (18S rDNA) and cytochrome C oxidase subunit 1 (COI) regions were amplified using the polymerase chain reaction (PCR) and sequenced. Phylogenetic analysis based on 18S rDNA using maximum likelihood (ML) and Bayesian inference (BI) methods revealed that E. tamimi sp. n. grouped with Eimeria quokka Barker, O'Callaghan et Beveridge, 1988, E. mundayi Barker, O´Callaghan et Beveridge, 1988, E. potoroi Barker, O'Callaghan et Beveridge, 1988 and E. gaimardi Barker, O'Callaghan et Beveridge, 1988 marsupials. Eimerian species have been regarded as a paraphyletic group and the present investigation confirmed the conflict between phenotypic traits, used widely in the classification of this group of parasites.

journal_name

Folia Parasitol (Praha)

journal_title

Folia parasitologica

authors

Mohammed OB,Aljedaie MM,Alyousif MS,Amor N

doi

10.14411/fp.2020.001

subject

Has Abstract

pub_date

2020-01-10 00:00:00

eissn

0015-5683

issn

1803-6465

journal_volume

67

pub_type

杂志文章

相关文献

FOLIA PARASITOLOGICA文献大全