Archaea and Bacteria
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA490800 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR7948420_subreads.fastq.gz | Fastqsanger.gz | |||
| SRR7948421_subreads.fastq.gz | Fastqsanger.gz | |||
| SRR7948422_subreads.fastq.gz | Fastqsanger.gz | |||
| SRR7948423_subreads.fastq.gz | Fastqsanger.gz | |||
| SRR7948418_subreads.fastq.gz | Fastqsanger.gz |
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Project description:Chemical communication is crucial in ecosystems with complex microbial assemblages. However, due to archaeal cultivation challenges, our understanding of the structure diversity and function of secondary metabolites (SMs) within archaeal communities is limited compared to the extensively studied and well-documented bacterial counterparts. Our comprehensive investigation into the biosynthetic potential of archaea, combined with metabolic analyses and the first report of heterologous expression in archaea, has unveiled the previously unexplored biosynthetic capabilities and chemical diversity of archaeal ribosomally synthesized and post-translationally modified peptide (RiPP). We have identified twenty-four new lanthipeptides of RiPPs exhibiting unique chemical characteristics, including a novel subfamily featuring an unexplored type with diamino-dicarboxylic (DADC) termini, largely expanding the chemical landscape of archaeal SMs. This sheds light on the chemical novelty of archaeal metabolites and emphasizes their potential as an untapped resource for natural product discovery. Additionally, archaeal lanthipeptides demonstrate specific antagonistic activity against haloarchaea, mediating the unique biotic interaction in the halophilic niche. Furthermore, they showcased a unique ecological role in enhancing the host's motility by inducing the rod-shaped cell morphology and upregulating the archaellum gene flgA1, facilitating the archaeal interaction with abiotic environments. These discoveries broaden our understanding of archaeal chemical language and provide promising prospects for future exploration of SM-mediated interaction.
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Project description:Microbial symbiotic partners, such as those associated with reef-building corals, mediate biochemical transformations that influence host performance and survival. While evidence suggests microbial community composition partly accounts for differences in coral physiology, how these symbionts affect metabolic pathways remains underexplored. We aimed to assess functional variation between coral-associated microbial partners in hospite. To this end, we characterized and compared microbial community composition and metabolomic profiles from 9 coral species. These data support and expand on previous research by demonstrating microbial communities and metabolite profiles are species-specific and are correlated to one another. Using Porites spp. as a case study, we present evidence that the relative abundance of different sub-clades of Symbiodinium and bacterial/archaeal families influence the composition of functionally important metabolites. Our data suggests that while some microbial partners benefit the union, others are more opportunistic and possibly parasitize the host. Consequently, coral partner choice likely influences cellular metabolic activities and, therefore, holobiont nutrition.
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