Tubulinosema loxostegi sp. n. (Microsporidia: Tubulinosematidae) from the Beet Webworm Loxostege sticticalis L. (Lepidoptera: Crambidae) in Western Siberia
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RIS BIB ENDNOTETubulinosema loxostegi sp. n. (Microsporidia: Tubulinosematidae) from the Beet Webworm Loxostege sticticalis L. (Lepidoptera: Crambidae) in Western Siberia
Publication date: 29.01.2014
Acta Protozoologica, 2013, Volume 52, Issue 4, pp. 299 - 308
https://doi.org/10.4467/16890027AP.13.028.1319Authors
Tubulinosema loxostegi sp. n. (Microsporidia: Tubulinosematidae) from the Beet Webworm Loxostege sticticalis L. (Lepidoptera: Crambidae) in Western Siberia
Adults of beet webworm Loxostege sticticalis were collected in Western Siberia in 2009 and 2010. A microsporidium was found infecting 12 of 50 moths in 2010. The parasite develops in direct contact with host cell cytoplasm, sporogony is presumably disporoblastic. The spores are ovoid, diplokaryotic, 4.2 × 2.4 μm in size (fresh), without a sporophorous vesicle. Electron microscopy showed: (a) tubules on the surface of sporoblasts and immature spores; (b) slightly anisofilar polar tube with 10–14 coils, last 2–3 coils of lesser electron density; (c) bipartite polaroplast with anterior and posterior parts composed of thin and thick lamellae, respectively; (d) an indentation in the region of the anchoring disc; (e) an additional layer of electron-dense amorphous matter on the exospore surface. The spore ultrastructure is characteristic of the genus Tubulinosema. Sequencing of small subunit and large subunit ribosomal RNA genes showed 98–99.6% similarity of this parasite to the Tubulinosema species available on Genbank. A new species Tubulinosema loxostegi sp. n. is established.
Information: Acta Protozoologica, 2013, Volume 52, Issue 4, pp. 299 - 308
Article type: Original article
All-Russian Institute of Plant Protection, St. Petersburg, Pushkin, Russia
All-Russian Institute of Plant Protection, St. Petersburg, Pushkin, Russia
Institute of Zoology, Chisinau, Moldova
Institute of Systematics and Ecology of Animals, Novosibirsk, Russia
All-Russian Institute of Plant Protection, St. Petersburg, Pushkin, Russia
All-Russian Institute of Plant Protection, St. Petersburg, Pushkin, Russia
Published at: 29.01.2014
Article status: Open
Licence: None
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