Beneficial factors for biomineralization by ureolytic bacterium Sporosarcina pasteurii.

ABSTRACT:

Background

The ureolytic bacterium Sporosarcina pasteurii is well-known for its capability of microbially induced calcite precipitation (MICP), representing a great potential in constructional engineering and material applications. However, the molecular mechanism for its biomineralization remains unresolved, as few studies were carried out.

Results

The addition of urea into the culture medium provided an alkaline environment that is suitable for S. pasteurii. As compared to S. pasteurii cultivated without urea, S. pasteurii grown with urea showed faster growth and urease production, better shape, more negative surface charge and higher biomineralization ability. To survive the unfavorable growth environment due to the absence of urea, S. pasteurii up-regulated the expressio

SUBMITTER: Ma L 

PROVIDER: S-EPMC6979283 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature