Journal
PROTIST
Volume 160, Issue 1, Pages 137-150Publisher
ELSEVIER GMBH
DOI: 10.1016/j.protis.2008.09.003
Keywords
Cercozoa; chlorarachniophytes; picoplankton; Partenskyella glossopodia; secondary endosymbiotic alga; taxonomy
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Funding
- Ministry of Education, Culture, Sports, Science and Technology of Japan [18570084]
- Departement du Finistere
- Region Bretagne
- French Ministry of Research
- Grants-in-Aid for Scientific Research [18570084] Funding Source: KAKEN
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A new chlorarachniophyte, Partenskyella glossopodia gen. et sp. nov., is described from a culture isolated from the Mediterranean Sea pelagic waters and maintained as strain RCC365 at the Roscoff Culture Collection (France). Vegetative cells of P. glossopodia are non-motile naked spherical cells. However, flagellate and amoeboid stages are also present in its life cycle. The cells are 2-4 mu m in diameter containing a pale-green, cup-shaped chloroplast, 1-2 mitochondria, a nucleus, and a Golgi apparatus. Vesicles containing storage product-like material are also present. The chloroplast is surrounded by four membranes possessing a nucleomorph in the periplastidal compartment. The minute cell size and the absence of a pyrenoid at any stage of the life cycle are unique characteristics among the chlorarachniophytes, which justifies our proposition for a new genus for strain RCC365. (C) 2008 Elsevier GmbH. All rights reserved.
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