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ABSTRACT: root associated microbiomes

PROVIDER: PRJNA644147 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR14074500.fastq.gz	Fastqsanger.gz
	SRR14074600.fastq.gz	Fastqsanger.gz
	SRR14074700.fastq.gz	Fastqsanger.gz
	SRR14074501.fastq.gz	Fastqsanger.gz
	SRR14074601.fastq.gz	Fastqsanger.gz

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An integrated-omics approach reveals specific bacterial and fungal taxa associated with roots of Alkanna tinctoria L. Tausch correlating with medicinally relevant alkannin derivatives and other secondary metabolites

Project description:Plants are naturally associated with diverse microbial communities, which play significant roles in plant performance, such as growth promotion or fending off pathogens. The roots of Alkanna tinctoria L. are rich in naphthoquinones, particularly the medicinally used chiral compounds alkannin, shikonin and their derivatives. Former studies already have shown that microorganisms may modulate plant metabolism. To further investigate the potential interaction between A. tinctoria and associated microorganisms we performed a greenhouse experiment, in which A. tinctoria plants were grown in the presence of three distinct soil microbiomes. At four defined plant developmental stages we made an in-depth assessment of bacterial and fungal root-associated microbiomes as well as all primary and secondary metabolites. Our results showed that the plant developmental stage was the most important driver influencing the plant metabolite content, revealing peak contents of alkannin/shikonin at the fruiting stage. In contrast, the soil microbiome had the biggest impact on the plant root microbiome. Correlation analyses performed on the measured metabolite content and the abundance of individual bacterial and fungal taxa suggested a dynamic, at times positive or negative relationship between root-associated microorganisms and root metabolism. In particular, the bacterial Allorhizobium-Neorhizobium-Pararhizobium-Rhizobium group and the fungal species Penicillium jensenii were found to be positively correlated with higher content of alkannins.

2021-11-28 | ST002021 | MetabolomicsWorkbench

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