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Aureococcus anophagefferens

ABSTRACT: Algae that causes seasonal brown tides in eastern shores of USA.

PROVIDER: PRJNA13420 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
		Other
	SRR1026850.fastq.gz	Fastqsanger.gz
	SRR13154124.fastq.gz	Fastqsanger.gz
	SRR13154125.fastq.gz	Fastqsanger.gz

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Aureococcus anophagefferens, Aureococcus anophagefferens Virus

Project description:INFECTION BY A GIANT VIRUS INDUCES WIDESPREAD PHYSIOLOGICAL REPROGRAMMING IN AUREOCOCCUS ANOPHAGEFFERENS – A HARMFUL BLOOM ALGAE

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Aureococcus anophagefferens

Project description:Nutrient-regulated transcriptional responses in the brown tide forming alga Aureococcus anophagefferens

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Project description:Genomes of four Aureococcus anophagefferens strains show a complement of genes to aid in proliferation during brown tide blooms

| PRJNA692237 | ENA

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Project description:Understanding strategy of nitrate and urea assimilation in a Chinese strain of Aureococcus anophagefferens through RNA-seq analysis

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Project description:Aureococcus anophagefferens Transcriptome or Gene expression

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Project description:Aureococcus anophagefferens Raw sequence reads

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Aureococcus anophagefferens

Project description:Sequencing of A. anophagefferens genome.

| PRJNA13500 | ENA

Aureococcus anophagefferens

Project description:The fungal community living with the laboratory-cultured Aureococcus anophagefferens

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Nutrient-regulated transcriptional responses in the brown tide forming alga Aureococcus anophagefferens

Project description:Relatively little is known about the presence and regulation of pathways involved in nutrient acquisition in the brown tide forming alga, Aureococcus anophagefferens. In this study, Long-SAGE (Serial Analysis of Gene Expression) was used to profile the A. anophagefferens transcriptome under nutrient replete (control), and nitrogen (N) and phosphorus (P) deficiency with the goal of understanding how this organism responds at the transcriptional level to varying nutrient conditions. This approach has aided A. anophagefferens genome annotation efforts and identified a suite of genes up-regulated by N and P deficiency, some of which have known roles in nutrient metabolism. Genes up-regulated under N deficiency include an ammonium transporter, an acetamidase/formamidase, and two peptidases. This suggests an ability to utilize reduced N compounds and dissolved organic nitrogen, supporting the hypothesized importance of these N sources in A. anophagefferens bloom formation. There are also a broad suite of P-regulated genes, including an alkaline phosphatase, and two 5’-nucleotidases, suggesting A. anophagefferens may use dissolved organic phosphorus under low phosphate conditions. These N- and P-regulated genes may be important targets for exploring nutrient controls on bloom formation in field populations.

2010-11-05 | GSE21465 | GEO

Niche of harmful alga Aureococcus anophagefferens revealed through ecogenomics.

Project description:Harmful algal blooms (HABs) cause significant economic and ecological damage worldwide. Despite considerable efforts, a comprehensive understanding of the factors that promote these blooms has been lacking, because the biochemical pathways that facilitate their dominance relative to other phytoplankton within specific environments have not been identified. Here, biogeochemical measurements showed that the harmful alga Aureococcus anophagefferens outcompeted co-occurring phytoplankton in estuaries with elevated levels of dissolved organic matter and turbidity and low levels of dissolved inorganic nitrogen. We subsequently sequenced the genome of A. anophagefferens and compared its gene complement with those of six competing phytoplankton species identified through metaproteomics. Using an ecogenomic approach, we specifically focused on gene sets that may facilitate dominance within the environmental conditions present during blooms. A. anophagefferens possesses a larger genome (56 Mbp) and has more genes involved in light harvesting, organic carbon and nitrogen use, and encoding selenium- and metal-requiring enzymes than competing phytoplankton. Genes for the synthesis of microbial deterrents likely permit the proliferation of this species, with reduced mortality losses during blooms. Collectively, these findings suggest that anthropogenic activities resulting in elevated levels of turbidity, organic matter, and metals have opened a niche within coastal ecosystems that ideally suits the unique genetic capacity of A. anophagefferens and thus, has facilitated the proliferation of this and potentially other HABs.

| S-EPMC3060233 | biostudies-other

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