Spatiotemporal bio-shielding of bacteria through consolidated geometrical structuring

Autor: Satish Kumar Rajasekharan, Moshe Shemesh
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: npj Biofilms and Microbiomes, Vol 8, Iss 1, Pp 1-10 (2022)
Druh dokumentu: article
ISSN: 2055-5008
DOI: 10.1038/s41522-022-00302-2
Popis: Abstract The probiotic bacterium Lactobacillus plantarum is often reckoned as a ‘generalist’ for its ability to adapt and survive in diverse ecological niches. The genomic signatures of L. plantarum have shown its intricate evolutionary ancestry and dynamic lifestyles. Here, we report on a unique geometrical arrangement of the multicellular population of L. plantarum cells. Prominently, a phenomenon of the cone-shaped colony formation and V-shaped cell chaining are discovered in response to the acidic-pH environment. Moreover, subsequent cold stress response triggers an unusual cellular arrangement of consolidated bundles, which appeared to be independently governed by a small heat shock protein (HSP 1). We further report that the V-shaped L. plantarum chaining demonstrates potent antagonistic activity against Candida albicans, a pathogenic yeast, both in vitro and in a Caenorhabditis elegans co-infection model. Finally, we deduce that the multifaceted traits manifested by this probiotic bacterium is an outcome of its dynamic flexibility and cellular heterogeneity.
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