Different composites inhibit Cd accumulation in grains under the rice-oilseed rape rotation mode of karst area: A field study

Lou, Fei; Fu, Tianling; He, Guandi; Tian, Wenxi; Wen, Jichang; Yang, Mingfang; Wei, Xiaoliao; He, Yeqing; He, Tengbing

doi:10.1016/j.ecoenv.2023.114884

Cited by 2 publications

(2 citation statements)

References 55 publications

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“…After adsorption, it inhibited the enrichment of Cd in field vegetable crops. The microbial inhibition of cadmium accumulation in cereals was reported by Lou et al [52]. This result indicated that 11830 is suitable for the biosorption of Cd in soil under conditions of high concentrations, and this adsorbent can inhibit the bioaccumulation of hyper-enriched plants, which has great potential in the bioremediation of cadmium-contaminated soil.…”

Section: Protein Differential Analysismentioning

confidence: 70%

How Pseudomonas nitroreducens Passivates Cadmium to Inhibit Plant Uptake

Chen,

Yu,

Fang

et al. 2024

Applied Sciences

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Cadmium (Cd) has been widely used in industry applications, leading to water and soil contamination. This study investigated the potential ability of Pseudomonas nitroreducens (11830) to perform the biosorption of cadmium from aqueous solution and soil. The biosorption characteristics were described using equilibrium isotherm and kinetic studies. The Langmuir adsorption isotherm indicated a better fit with the experimental data (R2 = 0.980), with a maximum capacity of 160.51 mg/g at 30 °C in an initial aqueous solution of 300 mg/L Cd2+. The experiments followed a pseudo-second-order kinetics model (R2 > 0.99), especially at a low initial concentration. The biosorption mechanisms involved were determined through scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive spectroscopy (EDS) and protein analysis. The SEM and TEM figures showed that the morphology of cells changed before and after the adsorption of Cd, and the EDS confirmed that Cd was absorbed on the surface of the cell. The analysis of proteins indicated that the protein species increased after the stimulation of Cd, which further confirmed the biosorption mechanism. A pot experiment confirmed that 11830 could passivate the cadmium in soil and reduce its uptake and utilization by Houttuynia cordata Thunb (H. cordata). This work demonstrates the potential application of microorganisms in inhibiting the accumulation of Cd in crops.

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Section: Protein Differential Analysismentioning

confidence: 70%

How Pseudomonas nitroreducens Passivates Cadmium to Inhibit Plant Uptake

Chen,

Yu,

Fang

et al. 2024

Applied Sciences

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“…Cd content measurement: One week after Cd treatment, samples of different tissue types (roots, stems, leaves, and seeds) from WT and StWRKY6-OE plants were collected to measure their Cd content. To determine the Cd content in various tissues of Arabidopsis, we used an HNO 3 -Automatic Graphite Digestion Apparatus-Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES-7000, Thermo Fisher Scientific, New York, USA), following the method described by Lou et al [ 33 ]. As a quality control measure, we used a standard material (GBW10045a) alongside the plant samples.…”

Section: Methodsmentioning

confidence: 99%

Unraveling the Mechanism of StWRKY6 in Potato (Solanum tuberosum)’s Cadmium Tolerance for Ensuring Food Safety

Saleem

Deng³

et al. 2023

Foods

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The WRKY transcription factor plays a crucial role in plant stress adaptation. Our research has found that WRKY6 in Solanum tuberosum (potatoes) is closely related to cadmium (Cd) tolerance. Therefore, investigating the mechanism of StWRKY6 in plant resistance to Cd toxicity is of great scientific importance for food safety. This research further analyzed the gene structure and functional regions of the nuclear transcription factor WRKY6 in potatoes, discovering that StWRKY6 contains W box, GB/box, ABRE, and other elements that can act as a nuclear transcription regulatory factor to execute multiple functional regulations. The results of the heterologous expression of StWRKY6 in Arabidopsis under Cd stress showed that the overexpression line (StWRKY6-OE) had significantly higher SAPD values and content of reactive oxygen species scavenging enzymes than the wild type, indicating that StWRKY6 plays a crucial role in protecting the photosynthetic system and promoting carbohydrate synthesis. Transcriptome analysis also revealed that the Cd-induced expression of StWRKY6 up-regulated many potential gene targets, including APR2, DFRA, ABCG1, VSP2, ERF013, SAUR64/67, and BBX20, which are involved in Cd chelation (APR2, DFRA), plant defense (VSP2, PDF1.4), toxic substance efflux (ABCG1), light morphology development (BBX20), and auxin signal (SAUR64/67). These genes coordinate the regulation of Cd tolerance in the StWRKY6 overexpression line. In summary, this study identified a potential gene set of the co-expression module of StWRKY6, providing useful evidence for the remediation of Cd-contaminated soil and the genetic breeding of low Cd-accumulating crops, thereby ensuring food safety.

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Different composites inhibit Cd accumulation in grains under the rice-oilseed rape rotation mode of karst area: A field study

Cited by 2 publications

References 55 publications

How Pseudomonas nitroreducens Passivates Cadmium to Inhibit Plant Uptake

How Pseudomonas nitroreducens Passivates Cadmium to Inhibit Plant Uptake

Unraveling the Mechanism of StWRKY6 in Potato (Solanum tuberosum)’s Cadmium Tolerance for Ensuring Food Safety

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