Biofilm formation onto starch fibres by Bacillus subtilis governs its successful adaptation to chickpea milk.

ABSTRACT: Beneficial biofilms may confer effective adaptation to food matrices that assist bacteria in enduring hostile environmental conditions. The matrices, for instance, dietary fibres of various food products, might serve as a natural scaffold for bacterial cells to adhere and grow as biofilms. Here, we report on a unique interaction of Bacillus subtilis cells with the resistant starch fibresof chickpea milk (CPM), herein CPM fibres, along with the production of a reddish-pink pigment. Genetic analysis identified the pigment as pulcherrimin, and also revealed the involvement of Spo0A/SinI pathway in modulating the observed phenotypes. Besides, through successful colonization of the CPM fibres, the wild-type cells of B. subtilis displayed enhanced survivability and resilience to environmental st

SUBMITTER: Rajasekharan SK 

PROVIDER: S-EPMC8313274 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature