Tag: dinoflagellates

Ycf93 (Orf105), a Small Apicoplast-Encoded Membrane Protein in the Relict Plastid of the Malaria Parasite Plasmodium falciparum That Is Conserved in Apicomplexa.

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Ycf93 (Orf105), a Small Apicoplast-Encoded Membrane Protein in the Relict Plastid of the Malaria Parasite Plasmodium falciparum That Is Conserved in Apicomplexa.
PLoS One. 2014;9(4):e91178
Authors: …

Accommodating the load: The transposable element content of very large genomes.

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Accommodating the load: The transposable element content of very large genomes.
Mob Genet Elements. 2013 Mar 1;3(2):e24775
Authors: Metcalfe CJ, Casane D
Abstract
Very large genomes, that is, …

Photophysiology of kleptoplasts: photosynthetic use of light by chloroplasts living in animal cells.

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Photophysiology of kleptoplasts: photosynthetic use of light by chloroplasts living in animal cells.

Philos Trans R Soc Lond B Biol Sci. 2014;369(1640):20130242

Authors: Serôdio J, Cruz S, Cartaxana P, Calado R

Abstract
Kleptoplasty is a remarkable type of photosynthetic association, resulting from the maintenance of functional chloroplasts-the ‘kleptoplasts’-in the tissues of a non-photosynthetic host. It represents a biologically unique condition for chloroplast and photosynthesis functioning, occurring in different phylogenetic lineages, namely dinoflagellates, ciliates, foraminiferans and, most interestingly, a single taxon of metazoans, the sacoglossan sea slugs. In the case of sea slugs, chloroplasts from macroalgae are often maintained as intracellular organelles in cells of these marine gastropods, structurally intact and photosynthetically competent for extended periods of time. Kleptoplasty has long attracted interest owing to the longevity of functional kleptoplasts in the absence of the original algal nucleus and the limited number of proteins encoded by the chloroplast genome. This review updates the state-of-the-art on kleptoplast photophysiology, focusing on the comparative analysis of the responses to light of the chloroplasts when in their original, macroalgal cells, and when sequestered in animal cells and functioning as kleptoplasts. It covers fundamental but ecologically relevant aspects of kleptoplast light responses, such as the occurrence of photoacclimation in hospite, operation of photoprotective processes and susceptibility to photoinhibition. Emphasis is given to host-mediated processes unique to kleptoplastic associations, reviewing current hypotheses on behavioural photoprotection and host-mediated enhancement of photosynthetic performance, and identifying current gaps in sacoglossan kleptoplast photophysiology research.

PMID: 24591722 [PubMed – in process]

Chromera velia, Endosymbioses and the Rhodoplex Hypothesis – Plastid Evolution in Cryptophytes, Alveolates, Stramenopiles and Haptophytes (CASH Lineages).

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Chromera velia, Endosymbioses and the Rhodoplex Hypothesis – Plastid Evolution in Cryptophytes, Alveolates, Stramenopiles and Haptophytes (CASH Lineages).
Genome Biol Evol. 2014 Feb 25;
Authors: Petersen J, L…

Marine dinoflagellate proteomics: Current status and future perspectives.

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Marine dinoflagellate proteomics: Current status and future perspectives.
J Proteomics. 2014 Feb 3;
Authors: Wang DZ, Zhang H, Zhang Y, Zhang SF
Abstract
Dinoflagellates are not only the impor…

Applications of next-generation sequencing to unravelling the evolutionary history of algae.

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Applications of next-generation sequencing to unravelling the evolutionary history of algae.
Int J Syst Evol Microbiol. 2014 Feb;64(Pt 2):333-45
Authors: Kim KM, Park JH, Bhattacharya D, Yoon HS
Abstr…

Horizontal gene transfer and redundancy of tryptophan biosynthetic enzymes in dinotoms.

Horizontal gene transfer and redundancy of tryptophan biosynthetic enzymes in dinotoms.
Genome Biol Evol. 2014 Jan 21;
Authors: Imanian B, Keeling PJ
Abstract
A tertiary endosymbiosis between a dinoflagellate…

Transcriptome de novo assembly sequencing and analysis of the toxic dinoflagellate Alexandrium catenella using the Illumina platform.

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Transcriptome de novo assembly sequencing and analysis of the toxic dinoflagellate Alexandrium catenella using the Illumina platform.
Gene. 2014 Jan 15;
Authors: Zhang S, Sui Z, Chang L, Kang K, Ma J, Kong F…

Acyl-homoserine lactone quorum sensing in the roseobacter clade.

Acyl-homoserine lactone quorum sensing in the roseobacter clade.
Int J Mol Sci. 2014;15(1):654-69
Authors: Zan J, Liu Y, Fuqua C, Hill RT
Abstract
Members of the Roseobacter clade are ecologically important a…

Extensive Differences in Gene Expression between Symbiotic and Aposymbiotic Cnidarians.

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Extensive Differences in Gene Expression between Symbiotic and Aposymbiotic Cnidarians.
G3 (Bethesda). 2013 Dec 24;
Authors: Lehnert EM, Mouchka ME, Burriesci MS, Gallo ND, Schwarz JA, Pringle JR
Abs…