Morphology, Ultrastructure and Life Cycle of Vitrella brassicaformis n. sp., n. gen., a Novel Chromerid from the Great Barrier Reef
KAUST Grant NumberFIC/2010/09
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AbstractChromerida are photoautotrophic alveolates so far only isolated from corals in Australia. It has been shown that these secondary plastid-containing algae are closely related to apicomplexan parasites and share various morphological and molecular characters with both Apicomplexa and Dinophyta. So far, the only known representative of the phylum was Chromera velia. Here we provide a formal description of another chromerid, Vitrella brassicaformis gen. et sp. nov., complemented with a detailed study on its ultrastructure, allowing insight into its life cycle. The novel alga differs significantly from the related chromerid C. velia in life cycle, morphology as well as the plastid genome. Analysis of photosynthetic pigments on the other hand demonstrate that both chromerids lack chlorophyll c, the hallmark of phototrophic chromalveolates. Based on the relatively high divergence between C. velia and V. brassicaformis, we propose their classification into distinct families Chromeraceae and Vitrellaceae. Moreover, we predict a hidden and unexplored diversity of the chromerid algae. © 2011 Elsevier GmbH.
CitationOborník M, Modrý D, Lukeš M, Černotíková-Stříbrná E, Cihlář J, et al. (2012) Morphology, Ultrastructure and Life Cycle of Vitrella brassicaformis n. sp., n. gen., a Novel Chromerid from the Great Barrier Reef. Protist 163: 306–323. Available: http://dx.doi.org/10.1016/j.protis.2011.09.001.
SponsorsThis work was supported by the Grant Agency of the Czech Academy of Sciences (IAA601410907) and the project Algatech (CZ.1.05/2.1.00/03.0110) to M.O., the Ministry of Education of the Czech Republic (2B06129 and 6007665801), and the Praemium Academiae Award to J.L., the Grant Agency of the University of South Bohemia (146/2010/P) and the award FIC/2010/09 by the King Abdullah University of Science and Technology (KAUST) to M.O. and J.L. Olympus BX53F was kindly loaned by Dr. Tomas Jendrulek (Olympus Czech Group Ltd). We thank Marek Elias (University of Ostrava) and Hassan Hashimi (Institute of Parasitology) for critical reading of the manuscript.
CollectionsPublications Acknowledging KAUST Support
- Sterol Composition and Biosynthetic Genes of Vitrella brassicaformis, a Recently Discovered Chromerid: Comparison to Chromera velia and Phylogenetic Relationship with Apicomplexan Parasites.
- Authors: Khadka M, Salem M, Leblond JD
- Issue date: 2015 Nov-Dec
- Morphology and ultrastructure of multiple life cycle stages of the photosynthetic relative of apicomplexa, Chromera velia.
- Authors: Oborník M, Vancová M, Lai DH, Janouškovec J, Keeling PJ, Lukeš J
- Issue date: 2011 Jan
- The Organellar Genomes of Chromera and Vitrella, the Phototrophic Relatives of Apicomplexan Parasites.
- Authors: Oborník M, Lukeš J
- Issue date: 2015
- Combined amplicon pyrosequencing assays reveal presence of the apicomplexan "type-N" (cf. Gemmocystis cylindrus) and Chromera velia on the Great Barrier Reef, Australia.
- Authors: Slapeta J, Linares MC
- Issue date: 2013
- Chromera velia: The Missing Link in the Evolution of Parasitism.
- Authors: Weatherby K, Carter D
- Issue date: 2013