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Coral metagenomes

ABSTRACT: Metagenomes and single cells from the corals Acropora humilis, Pocillopora verrucosa and Stylophora pistillata, raw sequence reads

PROVIDER: PRJNA323666 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR3694370_1.fastq.gz	Fastqsanger.gz
	SRR3694370_2.fastq.gz	Fastqsanger.gz
	SRR3694371_1.fastq.gz	Fastqsanger.gz
	SRR3694371_2.fastq.gz	Fastqsanger.gz
	SRR3694372_1.fastq.gz	Fastqsanger.gz

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Project description:Endozoicomonas are prevalent, abundant bacterial associates of marine animal hosts, including corals. Their role in holobiont health and functioning, however, remains poorly understood. To identify putative interactions within the coral holobiont, we characterized a novel Endozoicomonas isolate and assessed its transcriptomic and proteomic responses to tissue extracts of its native host, the Red Sea coral Acropora humilis, at control and elevated temperatures. We show that host cues stimulated differential expression of genes assumed to be involved in the modulation of the host immune response by Endozoicomonas, such as flagellar assembly genes, ankyrins, ephrins, and serpins. Proteome analysis revealed the upregulation of vitamin B1 and B6 biosynthetic as well as glycolytic processes by Endozoicomonas in response to host cues. We further demonstrate that the inoculation of A. humilis with its native Endozoicomonas strain resulted in enhanced holobiont health metrics, such as host tissue protein content and algal symbiont photosynthetic efficiency. Behavioral, physiological, and metabolic changes in Endozoicomonas may be key to the onset and function of mutualistic interactions within the coral holobiont, and our results suggest that the priming of Endozoicomonas to a symbiotic lifestyle may involve modulation of host immunity and the exchange of essential metabolites with other holobiont members. Consequently, Endozoicomonas presumably plays an important role in holobiont nutrient cycling and may therefore be implicated in its health, acclimatization, and ecological adaptation.

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Longevity strategies in response to light in the reef coral Stylophora pistillata

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