The planctomycete Stieleria maiorica Mal15T employs stieleriacines to alter the species composition in marine biofilms.
Commun Biol
; 3(1): 303, 2020 06 12.
Article
em En
| MEDLINE
| ID: mdl-32533057
ABSTRACT
Bacterial strains of the phylum Planctomycetes occur ubiquitously, but are often found on surfaces of aquatic phototrophs, e.g. alga. Despite slower growth, planctomycetes are not outcompeted by faster-growing bacteria in biofilms on such surfaces; however, strategies allowing them to compensate for slower growth have not yet been investigated. Here, we identified stieleriacines, a class of N-acylated tyrosines produced by the novel planctomycete Stieleria maiorica Mal15T, and analysed their effects on growth of the producing strain and bacterial species likely co-occurring with strain Mal15T. Stieleriacines reduced the lag phase of Mal15T and either stimulated or inhibited biofilm formation of two bacterial competitors, indicating that Mal15T employs stieleriacines to specifically alter microbial biofilm composition. The genetic organisation of the putative stieleriacine biosynthetic cluster in strain Mal15T points towards a functional link of stieleriacine biosynthesis to exopolysaccharide-associated protein sorting and biofilm formation.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Água do Mar
/
Tirosina
/
Biofilmes
/
Planctomycetales
/
Bactérias Gram-Positivas
/
Antibacterianos
Idioma:
En
Revista:
Commun Biol
Ano de publicação:
2020
Tipo de documento:
Article