Morphological and molecular characterization of a new species of Isospora Schneider, 1881 (Apicomplexa: Eimeriidae) from the western wattlebird Anthochaera lunulata Gould in Western Australia.

ABSTRACT: A new coccidian species, Isospora lunulatae n. sp., from the western wattlebird Anthochaera lunulata Gould in Western Australia is described and characterised molecularly. Microscopic analysis of a faecal sample identified subspheroidal oöcysts measuring 27-34 × 26-31 (30.6 × 29.4) μm (n = 20), with a length/width (L/W) ratio of 1.0-1.1 (1.0). Oöcysts have a bi-layered wall, 0.9-1.2 (1.0) μm thick; the outer layer is smooth, representing c.2/3 of total thickness. Micropyle and oöcyst residuum are both absent, but a polar granule is present. Sporocysts are ovoidal, 17-19 × 10-12 (18.3 × 10.7) μm, with a L/W ratio of 1.6-1.8 (1.7) and occupying about 21% of the area (each one) within the oöcyst. Stieda body is flattened to rounded, measuring on average 0.9 × 1.8 μ

SUBMITTER: Yang R 

PROVIDER: S-EPMC8906137 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature