April 2014 archive

Predictive functional profiling of microbial communities using 16S rRNA marker gene sequences.

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Predictive functional profiling of microbial communities using 16S rRNA marker gene sequences.
Nat Biotechnol. 2013 Sep;31(9):814-21
Authors: Langille MG, Zaneveld J, Caporaso JG, McDonald D, Knig…

The microtubular cytoskeleton of the apusomonad Thecamonas, a sister lineage to the opisthokonts.

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The microtubular cytoskeleton of the apusomonad Thecamonas, a sister lineage to the opisthokonts.
Protist. 2013 Sep;164(5):598-621
Authors: Heiss AA, Walker G, Simpson AG
Abstract
A…

Evaluation of photo-reactive siderophore producing bacteria before, during and after a bloom of the dinoflagellate Lingulodinium polyedrum.

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Evaluation of photo-reactive siderophore producing bacteria before, during and after a bloom of the dinoflagellate Lingulodinium polyedrum.

Metallomics. 2014 Apr 24;

Authors: Yarimizu K, Polido G, Gärdes A, Carter ML, Hilbern M, Carrano CJ

Abstract
Evidence is increasing for a mutualistic relationship between phytoplankton and heterotrophic marine bacteria. It has been proposed that bacteria producing photoactive iron binding compounds known as siderophores could play an important role in such mutualistic associations by producing bioavailable iron utilizable by phytoplankton and in exchange receive autotrophically derived DOM. In order to understand the potential role photoactive siderophores might be playing in bacterial-algal mutualism or marine biogeochemistry in general, it is important to be able to detect and quantify their presence in various environments. One approach to accomplish that end is to make use of high sensitivity genomics technology (qPCR) to search for siderophore biosynthesis genes related to the production of photoactive siderophores. In this way one can access their “biochemical potential” and utilize this information as a proxy for the presence of these siderophores in the marine environment. In this report we studied the correlation of the presence of bacteria producing one of the three photoactive siderophores relative to total bacterial and dinoflagellate numbers from surface water at the Scripps Pier before, during, and after fall bloom of the dinoflagellate Lingulodinium polyedrum. We believe that these findings will aid us in gauging the importance of photoactive siderophores in the marine environment and in harmful algal bloom dynamics in particular.

PMID: 24760287 [PubMed – as supplied by publisher]

SEMINAR: Philosophy of Fungi

SEMINAR IN EVOLUTION AND PHILOSOPHY Austin Booth Department of Philosophy Harvard University “Evolution and the Individuality of Fungi and Holobionts” 10:30 AM, Thursday 17 April Room 3H1, Sir Charles Tupper Building College and Carleton Streets Abstract: Using a Darwinian framework, I articulate accounts of individuality in two kinds of biological systems: heterokaryotic fungi and holobionts. …

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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.

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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: …

Palindromic genes in the linear mitochondrial genome of the nonphotosynthetic green alga Polytomella magna.

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Palindromic genes in the linear mitochondrial genome of the nonphotosynthetic green alga Polytomella magna.
Genome Biol Evol. 2013;5(9):1661-7
Authors: Smith DR, Hua J, Archibald JM, Lee RW

Phylogenomics demonstrates that breviate flagellates are related to opisthokonts and apusomonads.

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Phylogenomics demonstrates that breviate flagellates are related to opisthokonts and apusomonads.
Proc Biol Sci. 2013 Oct 22;280(1769):20131755
Authors: Brown MW, Sharpe SC, Silberman JD, Heiss AA,…

Functional divergence and convergent evolution in the plastid-targeted glyceraldehyde-3-phosphate dehydrogenases of diverse eukaryotic algae.

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Functional divergence and convergent evolution in the plastid-targeted glyceraldehyde-3-phosphate dehydrogenases of diverse eukaryotic algae.
PLoS One. 2013;8(7):e70396
Authors: Gaston D, Roger AJ…