Featured Publications
Mechanical forces drive a reorientation cascade leading to biofilm self-patterning
Nijjer J, Li C, Zhang Q, Lu H, Zhang S, Yan J. Mechanical forces drive a reorientation cascade leading to biofilm self-patterning. Nature Communications 2021, 12: 6632. PMID: 34789754, PMCID: PMC8599862, DOI: 10.1038/s41467-021-26869-6.Peer-Reviewed Original ResearchConceptsVibrio cholerae biofilmsSurface-attached aggregatesBacterial communitiesCell-surface interactionsDevelopmental processesBiofilm developmentBacterial cellsCell reorientationExtracellular matrixNonadherent mutantsDifferential growthBacterial biofilmsMechanical forcesBiofilmsBacterial growthDifferential orderingCellsGrowthMutantsLarge collectionMorphogenesis and cell ordering in confined bacterial biofilms
Zhang Q, Li J, Nijjer J, Lu H, Kothari M, Alert R, Cohen T, Yan J. Morphogenesis and cell ordering in confined bacterial biofilms. Proceedings Of The National Academy Of Sciences Of The United States Of America 2021, 118: e2107107118. PMID: 34330824, PMCID: PMC8346881, DOI: 10.1073/pnas.2107107118.Peer-Reviewed Original ResearchConceptsInherent developmental programsBiofilm-dwelling cellsBiofilm-forming speciesSingle-cell imagingDevelopmental programSpecific matrix componentsCell orderingBiofilm developmentSpherical biofilmsBacterial cellsCell communityExtracellular matrixBiofilm morphologyBacterial biofilmsBiophysical mechanismsMatrix componentsHost tissuesBiofilmsBiofilm growthStiff gelsCellsMorphogenesisMutagenesisSpeciesVibrio
2023
Mechanical Characterization and Single‐Cell Imaging of Bacterial Biofilms
Moreau A, Mukherjee S, Yan J. Mechanical Characterization and Single‐Cell Imaging of Bacterial Biofilms. Israel Journal Of Chemistry 2023, 63 DOI: 10.1002/ijch.202200075.Peer-Reviewed Original Research
2017
Extracellular-matrix-mediated osmotic pressure drives Vibrio cholerae biofilm expansion and cheater exclusion
Yan J, Nadell CD, Stone HA, Wingreen NS, Bassler BL. Extracellular-matrix-mediated osmotic pressure drives Vibrio cholerae biofilm expansion and cheater exclusion. Nature Communications 2017, 8: 327. PMID: 28835649, PMCID: PMC5569112, DOI: 10.1038/s41467-017-00401-1.Peer-Reviewed Original ResearchConceptsBiofilm-forming bacterial speciesSurface-attached communitiesVibrio choleraeActive cell growthModel organismsMatrix-producing cellsBacterial lifeNutrient uptakeEnvironmental perturbationsBacterial speciesBacterial cellsPlanktonic cellsSubmerged biofilmsExtracellular matrixCell growthMatrix productionOsmotic pressureBiofilm growthBiofilmsCholeraeCellsPhysical exclusionMatrix crosslinkingOsmotic swellingGrowthFlow environment and matrix structure interact to determine spatial competition in Pseudomonas aeruginosa biofilms
Nadell CD, Ricaurte D, Yan J, Drescher K, Bassler BL. Flow environment and matrix structure interact to determine spatial competition in Pseudomonas aeruginosa biofilms. ELife 2017, 6: e21855. PMID: 28084994, PMCID: PMC5283829, DOI: 10.7554/elife.21855.Peer-Reviewed Original ResearchConceptsMatrix mutantsWild-type cellsMicrobial communitiesMatrix producersEvolutionary stabilityNon-producing strainsMatrix organizationRelative abundanceExtracellular matrixMatrix secretionMatrix productionMutantsSimple flow regimesInitial frequencyBacteriaNatural environmentBiofilmsPseudomonas aeruginosaAbundanceCompetitive dynamicsPseudomonasSpatial competitionSpatial structureCompetitionPotential explanation