ArticleMicrobial biotechnology2021
Regulation of colony morphology and biofilm formation in Shewanella algae.
Article in Microbial biotechnology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 11 citations in OpenAlex.
- Synergistic Effects of Shewanella algae A3 and Serratia marcescens Van80 UB3 on Immune Response, Gene Expression and Resistance to Vibrio parahaemolyticus Vp5 in Pacific White Shrimp.Journal of fish diseases · 2026Article
- Wrinkle-like structures emerge from matrix complementarity and mechanical discontinuity in heterogenous biofilms.NPJ biofilms and microbiomes · 2026Article
- Virulence traits and bacterial interactions within the complex microbial population in urinary double-J catheters.Frontiers in microbiology · 2025Article
- TssL2 of T6SS2 is required for mobility, biofilm formation, wrinkly phenotype formation, and virulence of Vibrio parahaemolyticus SH112.Applied microbiology and biotechnology · 2024Article
- High-throughput microbial culturomics using automation and machine learning.Nature biotechnology · 2023Article
- The Transcription Regulator GntR/HutC Regulates Biofilm Formation, Motility and Stress Tolerance in Lysobacter capsici X2-3.Current microbiology · 2023Article
- The ribonuclease PNPase is a key regulator of biofilm formation in Listeria monocytogenes and affects invasion of host cells.NPJ biofilms and microbiomes · 2023Article
- Exopolysaccharide is the potential effector ofFrontiers in microbiology · 2023Article
- Article
- Complete Genome Sequence and Methylome of the Type Strain of Shewanella algae.Microbiology resource announcements · 2021Article
- Regulation of colony morphology and biofilm formation in Shewanella algae.Microbial biotechnology · 2021Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Bacterial colony morphology can reflect different physiological stages such as virulence or biofilm formation. In this work we used transposon mutagenesis to identify genes that alter colony morphology and cause differential Congo Red (CR) and Brilliant Blue G (BBG) binding in Shewanella algae, a marine indigenous bacterium and occasional human pathogen. Microscopic analysis of colonies formed by the wild-type strain S. algae CECT 5071 and three transposon integration mutants representing the diversity of colony morphotypes showed production of biofilm extracellular polymeric substances (EPS) and distinctive morphological alterations. Electrophoretic and chemical analyses of extracted EPS showed differential patterns between strains, although the targets of CR and BBG binding remain to be identified. Galactose and galactosamine were the preponderant sugars in the colony biofilm EPS of S. algae. Surface-associated biofilm formation of transposon integration mutants was not directly correlated with a distinct colony morphotype. The hybrid sensor histidine kinase BarA abrogated surface-associated biofilm formation. Ectopic expression of the kinase and mutants in the phosphorelay cascade partially recovered biofilm formation. Altogether, this work provides the basic analysis to subsequently address the complex and intertwined networks regulating colony morphology and biofilm formation in this poorly understood species.
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