Department of Plant Protection, Faculty of Agriculture, Vali-E-Asr University of Rafsanjan, Imam Khomeini Square, Rafsanjan, 7718897111, Iran.
Biorefining and Advanced Materials Research Center, Scotland's Rural College (SRUC), Edinburgh, EH9 3JG, UK.
Appl Biochem Biotechnol. 2023 Aug;195(8):4689-4711. doi: 10.1007/s12010-022-04177-z. Epub 2022 Oct 26.
Heavy elements accumulate rapidly in the soil due to industrial activities and the industrial revolution, which significantly impact the morphology, physiology, and yield of crops. Heavy metal contamination will eventually affect the plant tolerance threshold and cause changes in the plant genome and genetic structure. Changes in the plant genome lead to changes in encoded proteins and protein sequences. Consuming these mutated products can seriously affect human and animal health. Bioremediation is a process that can be applied to reduce the adverse effects of heavy metals in the soil. In this regard, bioremediation using plant growth-promoting rhizobacteria (PGPRs) as beneficial living agents can help to neutralize the negative interaction between the plant and the heavy metals. PGPRs suppress the adverse effects of heavy metals and the negative interaction of plant-heavy elements by different mechanisms such as biological adsorption and entrapment of heavy elements in extracellular capsules, reduction of metal ion concentration, and formation of complexes with metal ions inside the cell.
由于工业活动和工业革命，重金属在土壤中迅速积累，这对作物的形态、生理和产量有显著影响。重金属污染最终会影响植物的耐受阈值，并导致植物基因组和遗传结构的变化。植物基因组的变化导致编码蛋白和蛋白序列的变化。食用这些突变产物会严重影响人类和动物的健康。生物修复是一种可以用来减少土壤中重金属不良影响的过程。在这方面，使用植物促生根际细菌（PGPRs）作为有益的活体剂的生物修复可以帮助中和植物和重金属之间的负相互作用。PGPRs 通过不同的机制抑制重金属的不利影响和植物-重金属之间的负相互作用，例如生物吸附和将重金属困在细胞外囊泡中、降低金属离子浓度以及在细胞内与金属离子形成配合物。
