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Mar. Drugs 2015, 13(10), 6472-6488; doi:10.3390/md13106472

Matrix Production, Pigment Synthesis, and Sporulation in a Marine Isolated Strain of Bacillus pumilus

1
Department of Biology, Federico II University, MSA, via Cinthia 21, 80126 Naples, Italy
2
Department of Chemistry, Federico II University, MSA, via Cinthia 21, 80126 Naples, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Antonio Trincone
Received: 30 July 2015 / Revised: 10 October 2015 / Accepted: 12 October 2015 / Published: 21 October 2015
(This article belongs to the Special Issue Marine Glycoconjugates)
View Full-Text   |   Download PDF [1762 KB, uploaded 21 October 2015]   |  

Abstract

The ability to produce an extracellular matrix and form multicellular communities is an adaptive behavior shared by many bacteria. In Bacillus subtilis, the model system for spore-forming bacteria, matrix production is one of the possible differentiation pathways that a cell can follow when vegetative growth is no longer feasible. While in B. subtilis the genetic system controlling matrix production has been studied in detail, it is still unclear whether other spore formers utilize similar mechanisms. We report that SF214, a pigmented strain of Bacillus pumilus isolated from the marine environment, can produce an extracellular matrix relying on orthologs of many of the genes known to be important for matrix synthesis in B. subtilis. We also report a characterization of the carbohydrates forming the extracellular matrix of strain SF214. The isolation and characterization of mutants altered in matrix synthesis, pigmentation, and spore formation suggest that in strain SF214 the three processes are strictly interconnected and regulated by a common molecular mechanism. View Full-Text
Keywords: SF214; microbial differentiation; exopolysaccharide SF214; microbial differentiation; exopolysaccharide
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Di Luccia, B.; Riccio, A.; Vanacore, A.; Baccigalupi, L.; Molinaro, A.; Ricca, E. Matrix Production, Pigment Synthesis, and Sporulation in a Marine Isolated Strain of Bacillus pumilus. Mar. Drugs 2015, 13, 6472-6488.

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