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ABSTRACT: Wetland environment and root endophytic microorganisms(bacteria)

PROVIDER: PRJNA839557 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR19315300_1.fastq.gz	Fastqsanger.gz
	SRR19315300_2.fastq.gz	Fastqsanger.gz
	SRR19315400_1.fastq.gz	Fastqsanger.gz
	SRR19315400_2.fastq.gz	Fastqsanger.gz
	SRR19315301_1.fastq.gz	Fastqsanger.gz

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Project description:Wetland environment and root endophytic microorganisms

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Endophytic bacteria are key players in the modulation of the secondary metabolome of Lithospermum officinale L.

Project description:Endophytic bacteria influence plant growth and development and therefore are an attractive resource for applications in agriculture. However, little is known about the impact of these microorganisms on secondary metabolite (SM) production by medicinal plants. Here we assessed, for the first time, the effects of root endophytic bacteria on the modulation of SMs in the medicinal plant Lithospermum officinale (Boraginaceae family), with a focus on the naphthoquinones alkannin/shikonin (A/S). The study was conducted using a newly developed in vitro system as well as in the greenhouse. Targeted and non-targeted metabolomics approaches were used and supported by expression analysis of the gene PGT, encoding a key enzyme in the A/S biosynthesis pathway. Three bacterial strains, Chitinophaga sp. R-73072, Xanthomonas sp. R-73098 and Pseudomonas sp. R-71838 induced a significant increase of diverse SMs, including A/S, in L. officinale in both systems, demonstrating the strength of our approach for screening A/S derivative-inducing bacteria. Our results highlight the impact of root-endophytic bacteria on secondary metabolism in plants and indicate that production of A/S derivatives in planta likely involves cross-modulation of different metabolic pathways that can be manipulated by bacterial endophytes.

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RNA-seq Transcriptional Profiling of Herbaspirillum seropedicae Colonizing Bread Wheat (Triticum aestivum) Roots.

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Modulation of the endophytic strain Kosakonia radicincitans UYSO10 proteome by sugarcane roots exudate

Project description:The objective of this work was to expand the knowledge about the possible mechanisms involved in the early stages of the interaction between the diazotrophic endophytic strain Kosakonia radicincitans UYSO10 and sugarcane plants. For that, a proteomic approach was conducted in the strain UYSO10 exposed or not to sugarcane exudates. Results showed that in the presence of root exudates the UYSO10 strain senses the environment and adapts its proteome to transport and metabolize different nutrients, and to interact with the host plant. These results deepen the knowledge of the potential mechanisms involved in the early stage of plant-bacteria endophyte interaction.

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