November 2019 archive

Nitric oxide mediates oxylipin production and grazing defense in diatoms

Diatom blooms are important features of productive marine ecosystems and are known to support higher trophic levels. However, when stressed or wounded, diatoms can produce oxylipin molecules known to inhibit the reproduction and development of copepods and decrease microzooplankton growth rates. Using oxylipin chemical treatments, lipidomic analysis and functional genomic approaches, we provide evidence that nitric oxide (NO) and oxylipin signalling pathways in diatoms respond to protist…

Metabolic relationships of uncultured bacteria associated with the microalgae Gambierdiscus.

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Metabolic relationships of uncultured bacteria associated with the microalgae Gambierdiscus.
Environ Microbiol. 2019 Nov 27;:
Authors: Rambo IM, Dombrowski N, Constant L, Erdner D, Baker BJ

Haliea alexandrii sp. nov., isolated from phycosphere microbiota of the toxin-producing dinoflagellate Alexandrium catenella.

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Haliea alexandrii sp. nov., isolated from phycosphere microbiota of the toxin-producing dinoflagellate Alexandrium catenella.
Int J Syst Evol Microbiol. 2019 Nov 21;:
Authors: Yang Q, Jiang Z, Zhou…

A phenotype-genotype codon model for detecting adaptive evolution.

Related Articles A phenotype-genotype codon model for detecting adaptive evolution. Syst Biol. 2019 Nov 15;: Authors: Jones CT, Youssef N, Susko E, Bielawski JP Abstract A central objective in biology is to link adaptive evolution in a gene to structural and/or functional phenotypic novelties. Yet most analytic methods make inferences mainly from either phenotypic data …

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Evidence that inconsistent gene prediction can mislead analysis of dinoflagellate genomes.

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Evidence that inconsistent gene prediction can mislead analysis of dinoflagellate genomes.
J Phycol. 2019 Nov 12;:
Authors: Chen Y, González-Pech RA, Stephens TG, Bhattacharya D, Chan CX
Abs…

Genome-wide Transcriptional Analysis of Tetrahymena thermophila Response to Exogenous Cholesterol.

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Genome-wide Transcriptional Analysis of Tetrahymena thermophila Response to Exogenous Cholesterol.
J Eukaryot Microbiol. 2019 Nov 09;:
Authors: Najle SR, Hernández J, Ocaña-Pallarès E, García Sibur…

Genome-wide Transcriptional Analysis of Tetrahymena thermophila Response to Exogenous Cholesterol.

Related Articles Genome-wide Transcriptional Analysis of Tetrahymena thermophila Response to Exogenous Cholesterol. J Eukaryot Microbiol. 2019 Nov 09;: Authors: Najle SR, Hernández J, Ocaña-Pallarès E, García Siburu N, Nusblat AD, Nudel CB, Slamovits CH, Uttaro AD Abstract The ciliate Tetrahymena thermophila does not require sterols for growth and synthesizes pentacyclic triterpenoid alcohols, mainly tetrahymanol, as …

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Genome-wide Transcriptional Analysis of Tetrahymena thermophila Response to Exogenous Cholesterol

The ciliate Tetrahymena thermophila does not require sterols for growth and synthesizes pentacyclic triterpenoid alcohols, mainly tetrahymanol, as sterol surrogates. However, when sterols are present in the environment, T. thermophila efficiently incorporates and modifies them. These modifications consist of desaturation reactions at positions C5(6), C7(8), and C22(23), and de-ethylation at C24 of 29-carbon sterols (i.e. phytosterols). Three out of four of the enzymes involved in the sterol…

The tellurite-reducing bacterium Alteromonas macleodii from a culture of the toxic dinoflagellate Prorocentrum foraminosum.

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The tellurite-reducing bacterium Alteromonas macleodii from a culture of the toxic dinoflagellate Prorocentrum foraminosum.
Heliyon. 2019 Sep;5(9):e02435
Authors: Beleneva IA, Efimova KV, Eliseikina…

Molecular mechanisms of acclimation to long-term elevated temperature exposure in marine symbioses.

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Molecular mechanisms of acclimation to long-term elevated temperature exposure in marine symbioses.
Glob Chang Biol. 2019 Nov 06;:
Authors: Alves Monteiro HJ, Brahmi C, Mayfield AB, Vidal-Dupiol J, …