Year: 2026
Type: article
Abstract: Leptolyngbya boryana GGD, a filamentous cyanobacterium, serves as the biological core of living building materials (LBMs). However, its rapid loss of viability under Cd 2+ stress limits its utility in contaminated environments. To enhance the resilience of this strain, the Cd 2+ -tolerant Lysinibacillus sp. HMR (defined here as heavy metal resistance) is selected from among 31 environmental isolates for co-cultivation with the GGD strain. The HMR strain promotes the accumulation of extracellular matrix structures around the GGD strain cell surface, thereby significantly enhancing its Cd 2+ tolerance. Co-cultivation with the HMR strain also facilitates electrostatic interactions with Cd 2+ and promotes CaCO 3 precipitation. These synergistic interactions strengthen the co-culture-based LBMs by promoting robust mineralization and significantly enhancing Cd 2+ adsorption efficiency compared with the GGD strain monoculture. Here, we report that LBMs incorporating the GGD strain co-cultured with the Cd 2+ -tolerant HMR strain represent a promising platform for sustainable heavy metal bioremediation.
Source: Cell Reports Physical Science
Institution: Korea University
Language: English
Subfield: Environmental Engineering
Field: Environmental Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $5,620
Awards: G1407431779, G8566306248
OpenAlex ID: W7119961526