ArticleNature microbiology2024
A Marine Group A isolate relies on other growing bacteria for cell wall formation.
Article in Nature microbiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Community structure and methylation of microbes in an artificially forced sediment core.Microbiology spectrum · 2026Article
- Article
- Microbial decomposer diversity and metabolic function during the decomposition of brine shrimp carcasses in a saline lake.Microbiome · 2026Article
- Ecological diversity and metabolic strategies of widespread Marinisomatota in global oceans.Marine life science & technology · 2025Article
- Insights Into Phylogeny, Diversity and Functional Potential of Poseidoniales Viruses.Environmental microbiology · 2025Article
- A year of microbiology.Nature microbiology · 2024Article
- Breaking free from references: a consensus-based approach for community profiling with long amplicon nanopore data.Briefings in bioinformatics · 2024Article
- Article
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Authors and funding
10 authors.
Funding
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Abstract
Most of Earth's prokaryotes live under energy limitation, yet the full breadth of strategies that enable survival under such conditions remain poorly understood. Here we report the isolation of a bacterial strain, IA91, belonging to the candidate phylum Marine Group A (SAR406 or 'Candidatus Marinimicrobia') that is unable to synthesize the central cell wall compound peptidoglycan itself. Using cultivation experiments and microscopy, we show that IA91 growth and cell shape depend on other bacteria, deriving peptidoglycan, energy and carbon from exogenous muropeptide cell wall fragments released from growing bacteria. Reliance on exogenous muropeptides is traceable to the phylum's ancestor, with evidence of vertical inheritance across several classes. This dependency may be widespread across bacteria (16 phyla) based on the absence of key peptidoglycan synthesis genes. These results suggest that uptake of exogenous cell wall components could be a relevant and potentially common survival strategy in energy-limited habitats like the deep biosphere.
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