Cd-Resistant Plant Growth-Promoting Rhizobacteria Bacillus siamensis R27 Absorbed Cd and Reduced Cd Accumulation in Lettuce (Lactuca sativa L.).

ABSTRACT: The use of plant growth-promoting rhizobacteria (PGPR) for the bioremediation of heavy metal cadmium (Cd) and for enhancing plant growth in Cd-polluted soil is widely recognized as an effective approach. This study aimed to isolate Cd-resistant bacteria with plant growth-promoting (PGP) traits from the rhizosphere of vegetables subjected to metal contamination and to investigate the mechanisms associated with Cd adsorption as well as its impact on Cd uptake in lettuce. Six Cd-resistant bacterial strains were isolated from rhizosphere soil, among which the R27 strain exhibited the highest tolerance to Cd (minimum inhibitory concentration of 2000 mg/L) along with PGP traits, including phosphate solubilization (385.11 mg/L), the production of indole-3-acetic acid (IAA) (35.92 mg/L), and sider

SUBMITTER: Liu S 

PROVIDER: S-EPMC11596447 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature