The impacts of exogenous phosphorus on Cd absorption in perennial ryegrass root cell: Kinetic and mechanism study

Jia, Hui; Lei, Yuze; Pan, Shizhen; Zhu, Jin; Shen, Zhengtao; Tang, Lingyi; Hou, Deyi

doi:10.1016/j.plaphy.2023.108220

Cited by 5 publications

(3 citation statements)

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“…The reported results have shown that soluble P might react with Cd 2+ to form a relatively stable Cd-containing phosphate. Cadmium (II) also could be directly adsorbed and immobilized by P-containing groups on the soil surface [ 29 ]. As compared with the treatment group without bacteria, the application of Priestia aryabhattai significantly increased the content of Olsen-P after 28 d ( p < 0.05) ( Figure 2 b), indicating that Priestia aryabhattai could increase the content of soluble P in Cd-contaminated soil.…”

Section: Resultsmentioning

confidence: 99%

“…The content of available Cd in the soil with 1.0 and 2.0 mg kg −1 of Cd contamination decreased by 18.16% and 7.88%, respectively, but there was no significant difference. Phosphate-solubilizing bacteria were reported as transforming a wide range of insoluble phosphates into soluble forms by secreting hydrogen ions, organic acids, etc., and the combination of PO 4 3− with Cd can lead to the formation of phosphate salt [ 29 ]. Also, Priestia aryabhattai may reduce the mobility and bioavailability of Cd in the soil by biosorption and biological accumulation [ 20 ].…”

Section: Resultsmentioning

confidence: 99%

Section: Effect Of Priestia Aryabhattai On Available Phosphorus In Cd...mentioning

confidence: 97%

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Effects of Priestia aryabhattai on Phosphorus Fraction and Implications for Ecoremediating Cd-Contaminated Farmland with Plant–Microbe Technology

Yang,

Ning,

et al. 2024

Plants

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The application of phosphate-solubilizing bacteria has been widely studied in remediating Cd-contaminated soil, but only a few studies have reported on the interaction of P and Cd as well as the microbiological mechanisms with phosphate-solubilizing bacteria in the soil because the activity of phosphate-solubilizing bacteria is easily inhibited by the toxicity of Cd. This paper investigates the phosphorus solubilization ability of Priestia aryabhattai domesticated under the stress of Cd, which was conducted in a soil experiment with the addition of Cd at different concentrations. The results show that the content of Ca2-P increased by 5.12–19.84%, and the content of labile organic phosphorus (LOP) increased by 3.03–8.42% after the addition of Priestia aryabhattai to the unsterilized soil. The content of available Cd decreased by 3.82% in the soil with heavy Cd contamination. Priestia aryabhattai has a certain resistance to Cd, and its relative abundance increased with the increased Cd concentration. The contents of Ca2-P and LOP in the soil had a strong positive correlation with the content of Olsen-P (p < 0.01), while the content of available Cd was negatively correlated with the contents of Olsen-P, Ca2-P, and LOP (p < 0.05). Priestia aryabhattai inhibits the transport of Cd, facilitates the conversion of low-activity P and insoluble P to Ca2-P and LOP in the soil, and increases the bioavailability and seasonal utilization of P in the soil, showing great potential in ecoremediating Cd-contaminated farmland soil with plant–microbe-combined technology.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Effect Of Priestia Aryabhattai On Available Phosphorus In Cd...mentioning

confidence: 97%

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