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Description of Vahlkampfia signyensis n. sp. (Heterolobosea), based on morphological, ultrastructural and molecular characteristics

Garstecki, Tobias; Brown, Susan; De Jonckheere, Johan F.. 2005 Description of Vahlkampfia signyensis n. sp. (Heterolobosea), based on morphological, ultrastructural and molecular characteristics. European Journal of Protistology, 41 (2). 119-127. 10.1016/j.ejop.2005.01.003

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Abstract/Summary

Vahlkampfia signyensis n. sp. was isolated from two soil sites at Signy Island, South Orkney Islands, maritime Antarctic. Trophozoites of the species had a typical vahlkampfiid morphology, showed eruptive movement and did not form flagellates. However, Vahlkampfia signyensis differs from other described species of the genus in a range of morphological and ultrastructural characters, as well as in its 5.8S rDNA sequence. According to its 5.8S rDNA sequence, the new species is most closely related to Vahlkampfia avara. An isolate of the new species had a temperature growth optimum of only 10 °C, and did not grow at either 30 °C or 37 °C. The low optimal growth temperature is adaptively significant for life in the maritime Antarctic.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1016/j.ejop.2005.01.003
Programmes: BAS Programmes > Antarctic Science in the Global Context (2000-2005) > Antarctic Biodiversity - Past, Present and Future
CEH Programmes pre-2009 publications > Biodiversity
CEH Sections: _ Population & Conservation Ecology
ISSN: 0932-4739
Additional Keywords: Rhizopoda, Phylogeny
NORA Subject Terms: Biology and Microbiology
Date made live: 24 Dec 2007 11:43
URI: http://nora.nerc.ac.uk/id/eprint/1791

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