ArticleApplied and environmental microbiology2015
Lipopolysaccharide O-chain core region required for cellular cohesion and compaction of in vitro and root biofilms developed by Rhizobium leguminosarum.
Article in Applied and environmental microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 25 citations in OpenAlex.
- Transcriptome-guided discovery of novel plant-associated genes in a rhizosphere Pseudomonas.Microbiome · 2025Article
- Phage host interactions reveal LPS and OmpA as receptors for two Erwinia amylovora phages.Scientific reports · 2025Article
- Rhizobium determinants of rhizosphere persistence and root colonization.The ISME journal · 2024Article
- RapD Is a Multimeric Calcium-Binding Protein That Interacts With theFrontiers in microbiology · 2022Article
- Computational characterizations of GDP-mannose 4,6-dehydratase (NoeL) Rhizobial proteins.Current genetics · 2021Article
- Article
- Biological Functions of Prokaryotic Amyloids in Interspecies Interactions: Facts and Assumptions.International journal of molecular sciences · 2020Review
- Lipopolysaccharide O-antigens-bacterial glycans made to measure.The Journal of biological chemistry · 2020Review
- Shifts in reclamation management strategies shape the role of exopolysaccharide and lipopolysaccharide-producing bacteria during soil formation.Microbial biotechnology · 2020Article
- Transcriptomic Studies Reveal that theInternational journal of molecular sciences · 2019Article
- Genomic and metabolic differences between Pseudomonas putida populations inhabiting sugarcane rhizosphere or bulk soil.PloS one · 2019Article
- Rhizobia: from saprophytes to endosymbionts.Nature reviews. Microbiology · 2018Review
- Article
- AFrontiers in microbiology · 2016Article
- Article
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Authors and funding
9 authors at 6 institutions in 3 countries.
Funding
Abstract
The formation of biofilms is an important survival strategy allowing rhizobia to live on soil particles and plant roots. Within the microcolonies of the biofilm developed by Rhizobium leguminosarum, rhizobial cells interact tightly through lateral and polar connections, forming organized and compact cell aggregates. These microcolonies are embedded in a biofilm matrix, whose main component is the acidic exopolysaccharide (EPS). Our work shows that the O-chain core region of the R. leguminosarum lipopolysaccharide (LPS) (which stretches out of the cell surface) strongly influences bacterial adhesive properties and cell-cell cohesion. Mutants defective in the O chain or O-chain core moiety developed premature microcolonies in which lateral bacterial contacts were greatly reduced. Furthermore, cell-cell interactions within the microcolonies of the LPS mutants were mediated mostly through their poles, resulting in a biofilm with an altered three-dimensional structure and increased thickness. In addition, on the root epidermis and on root hairs, O-antigen core-defective strains showed altered biofilm patterns with the typical microcolony compaction impaired. Taken together, these results indicate that the surface-exposed moiety of the LPS is crucial for proper cell-to-cell interactions and for the formation of robust biofilms on different surfaces.
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