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Thalassiosira pseudonana

ABSTRACT: Transcript level coordination of carbon pathways during silicon-starvation induced lipid accumulation in the diatom Thalassiosira pseudonana

PROVIDER: PRJNA304348 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR2962640_1.fastq.gz	Fastqsanger.gz
	SRR2962640_2.fastq.gz	Fastqsanger.gz
	SRR2962641_1.fastq.gz	Fastqsanger.gz
	SRR2962641_2.fastq.gz	Fastqsanger.gz
	SRR2962642_1.fastq.gz	Fastqsanger.gz

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Synchronous cell cycle progression in the diatom Thalassiosira pseudonana

Project description:To identify the molecular components involved in diatom cell division, global transcript level changes were monitored over the silicon-synchronized cell cycle the model diatom Thalassiosira pseudonana.

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Transcript level coordination of carbon pathways during silicon-starvation induced lipid accumulation in the diatom Thalassiosira pseudonana

Project description:To characterize the transcript level component of metabolic regulation, genome-wide transcript level changes were documented in the model diatom Thalassiosira pseudonana over a time-course of silicon starvation. Growth, cell cycle progression, chloroplast replication, fatty acid composition, pigmentation, and photosynthetic parameters were characterized alongside lipid accumulation. Extensive coordination of large suites of genes was observed, highlighting the existence of clusters of co-regulated genes as a key feature of global gene regulation in T. pseudonana. The identity of key enzymes for carbon metabolic pathway inputs (photosynthesis) and outputs (growth and storage) reveals these clusters are organized to synchronize these processes.

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Gene profiling of Thalassiosira pseudonana under various growth conditions

Project description:This SuperSeries is composed of the following subset Series: GSE9660: Profiling the transcriptome of Thalassiosira pseudonana under environmentally relevant growth conditions GSE9661: Profiling the transcriptome of Thalassiosira pseudonana under silicon replete and deplete growth Refer to individual Series

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The diatom Thalassiosira pseudonana grown at [normal and elevated CO2] x [normal and elevated light]

Project description:Transcriptomic profiling of the diatom Thalassiosira pseudonana at normal and elevated CO2 levels and at normal and elevated light levels. Common reference total RNA (Agilent Quick-Amp Cy3-labeled) was used in all arrays as an internal standard.

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Transcript level coordination of carbon pathways during silicon starvation induced lipid accumulation in the diatom Thalassiosira pseudonana

Project description:Nutrient-starvation induced lipid accumulation has been reported in diverse algae, including diatoms. Molecular mechanisms underlying lipid accumulation in nutrient-starved algae are of interest to inform genetic engineering strategies aimed at improving lipid productivity. Diatom cell walls are made of nanostructured silica which is a unique feature of the group and silicon deprivation induces both growth arrest and lipid accumulation. In this work, we report the whole cell transcript level response during silicon starvation induced lipid accumulation. Analyzed mRNA from cells after 0, 4, 8, 12, 18, and 24 hr of silicon starvation using the Affymetrix GeneChip whole genome tiling array. Initial analysis of gene level expression was performed using the Affymetrix Expression Console Software, version 1.1. No biological replicates were performed. 0 hr is used as a reference point.

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