Calcite precipitation by the nitrogen-fixing cyanobacterium Anabaena sp. ATCC 33047.

ABSTRACT: Microbiologically induced calcium carbonate precipitation (MICP) is an ecologically vital process where the metabolic activity of microorganisms causes the precipitation of calcium carbonate. In cyanobacteria, MICP is thought to occur primarily due to photosynthesis. During this process, cyanobacteria consume carbon dioxide, raising the local pH, which leads to conditions favorable to calcium carbonate precipitation. However, how individual cells contribute to MICP is poorly understood. Here, we use quantitative microscopy to obtain direct evidence of MICP caused by the filamentous cyanobacterium Anabaena sp. ATCC 33047 (hereafter Anabaena) in nitrogen fixing conditions. Anabaena cells differentiate into photosynthetic vegetative cells and nitrogen-fixing heterocysts. Our results show that

SUBMITTER: Brininger CM 

PROVIDER: S-EPMC12669720 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature