Agricultural Strategies to Reduce Cadmium Accumulation in Crops for Food Safety

Mubeen, Samavia; Ni, Wenjuan; He, Chun-Tao

doi:10.3390/agriculture13020471

Cited by 18 publications

(6 citation statements)

References 315 publications

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“…Cadmium then bioaccumulates in the kidneys and liver. Soils can be contaminated with cadmium through application of rock phosphate fertilizers, sewage sludge and industrial wastes (Ismael et al, 2018;Australian Government, 2022;Mubeen et al, 2023). Australian soils have low levels of natural cadmium and fertilizer application is the most significant contributing source of the cadmium to the Australian sheep meat value chain (Warne et al, 2007;MacLachlan et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Quantifying pre-consumer food and nutrient losses from the Australian lamb and sheep meat value chain: a case study

Wingett,

Alders

2024

Front. Sustain. Food Syst.

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To achieve sustainable development, United Nation members have agreed to reduce food loss along the pre-consumer food supply chain. Food loss and waste is a significant challenge facing Australia and the world, with an estimated one third of all food produced locally being lost or wasted. Globally, Australia is the second largest producer of sheep meat and, locally in Australia sheep meat is the second largest meat industry. Previous assessments of Australian livestock industries estimate low levels of food product losses from the sheep meat chain. This case study aimed to quantify nutrient losses at the point of slaughter of Australian lambs and sheep, using a mass balance approach with secondary data. The results from this study align with this previous assessment with respect to the level of products and nutrients downgraded at the point of slaughter, except for the impact of cadmium contamination on adult sheep liver and kidney downgrades. In turn, cadmium contamination emerged as a key contributor to micronutrient losses, notably dietary folate equivalents, and vitamin A retinol equivalents (RE). There was moderate to high uncertainty in the outputs of the assessment, predominantly due to the absence of data. Addressing these challenges, particularly the absence of offal production data, is crucial as it influences the overall accuracy of the results. This study identifies areas for improvement in the Australian sheep meat value chain, including data governance, at both the macro and micro levels. It also serves as a foundational step in understanding how reducing food and nutrient losses in the Australian sheep meat value chain could contribute to food security and nutrition goals.

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Section: Discussionmentioning

confidence: 99%

Quantifying pre-consumer food and nutrient losses from the Australian lamb and sheep meat value chain: a case study

Wingett,

Alders

2024

Front. Sustain. Food Syst.

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“…One approach is to modify the soil through phytoremediation and the application of amendments such as lime, phosphate, and organic compounds to reduce Cd availability for plant uptake ( Bolan and Duraisamy, 2003 ; Guo et al., 2018 ; Rizwan et al., 2018 ). Good agricultural practices including the irrigation management,the strict application of fertilizer, and the limitation of Cd content in fertilizer can also contribute to the reduction of Cd contamination during crop production ( Sterckeman et al., 2018 ; Ulrich, 2019 ; Mubeen et al., 2023 ).…”

Section: Discussionmentioning

confidence: 99%

Overexpression of GmWRKY172 enhances cadmium tolerance in plants and reduces cadmium accumulation in soybean seeds

et al. 2023

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IntroductionCadmium (Cd) stress is a significant threat to soybean production, and enhancing Cd tolerance in soybean is the focus of this study. The WRKY transcription factor family is associated with abiotic stress response processes. In this study, we aimed to identify a Cd-responsive WRKY transcription factor GmWRKY172 from soybean and investigate its potential for enhancing Cd tolerance in soybean.MethodsThe characterization of GmWRKY172 involved analyzing its expression pattern, subcellular localization, and transcriptional activity. To assess the impact of GmWRKY172, transgenic Arabidopsis and soybean plants were generated and examined for their tolerance to Cd and Cd content in shoots. Additionally, transgenic soybean plants were evaluated for Cd translocation and various physiological stress indicators. RNA sequencing was performed to identify the potential biological pathways regulated by GmWRKY172.ResultsGmWRKY172 was significantly upregulated by Cd stress, highly expressed in leaves and flowers, and localized to the nucleus with transcriptional activity. Transgenic plants overexpressing GmWRKY172 showed enhanced Cd tolerance and reduced Cd content in shoots compared to WT. Lower Cd translocation from roots to shoots and seeds was also observed in transgenic soybean. Under Cd stress, transgenic soybean accumulated less malondialdehyde (MDA) and hydrogen peroxide (H2O2) than WT plants, with higher flavonoid and lignin contents, and peroxidase (POD) activity. RNA sequencing analysis revealed that many stress-related pathways were regulated by GmWRKY172 in transgenic soybean, including flavonoid biosynthesis, cell wall synthesis, and peroxidase activity.DiscussionOur findings demonstrated that GmWRKY172 enhances Cd tolerance and reduces seed Cd accumulation in soybean by regulating multiple stress-related pathways, and could be a promising candidate for breeding Cd-tolerant and low Cd soybean varieties.

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“…Cadmium (Cd) pollution in agricultural soils is a significant and persistent global concern, exerting detrimental effects on farmland and ecosystems, while also posing serious threats to crop yield and food safety (Bashir et al., 2020; Mubeen et al., 2023). The impact of Cd on farmland is concerning, as it adversely affects crop growth and productivity.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous realization of cadmium bioavailability reduction and spinach growth promotion in acidic soils with calcined oyster shells and dolomite

Fan,

Li,

et al. 2023

Soil Use and Management

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Cheap and widely available calcium‐based materials have gained popularity for remediating cadmium‐contaminated soils, but their potential to address cadmium (Cd) toxicity in acidic soils remains deeply understudied. The current study investigated the effects of calcined oyster shells (COS) and dolomite (DM), applied at a rate of 30 g kg‐1, on Cd availability and its accumulation in spinach plants in acidic Cd‐contaminated soils (Cd concentration: 4.42 mg kg‐1). Additionally, the influence of active aluminum (Al) on Cd bioavailability and plant Cd accumulation was examined. The application of COS and DM led to a reduction in diethylenetriaminepentaacetic acid extracted Cd (DTPA‐Cd) of 42.1% and 28.6%, respectively. Furthermore, the COS and DM positively increased soil pH (2.48 and 1.81 units), electrical conductivity (89.4% and 28.1%), organic matter content (17.2% and 11.9%), and available phosphorus (37.7% and 6.39%), and decreased soil exchangeable Al3+ (100% and 83.9%). As a result of amending with COS and DM, the Cd concentration (81.0‐82.9%) and bioaccumulation factor (78.8‐80.2%) in spinach plants were significantly decreased (p < 0.05). The presence of exchangeable Al3+ in the soil showed only a weak influence on plant Cd accumulation. The COS and DM also induced 8.65 times and 5.42 times greater spinach fresh matter yield compared with the control. In conclusion, the application of COS and DM as amendments in Cd‐polluted acidic soils holds great promise. The COS has greater prospects for immobilizing Cd, promoting plant biomass, and producing plants with lesser Cd concentrations in acidic soils. This work offers a new strategy by adopting wide‐resource and cost‐effective mineral materials for sustainable environmental management.

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Agricultural Strategies to Reduce Cadmium Accumulation in Crops for Food Safety

Cited by 18 publications

References 315 publications

Quantifying pre-consumer food and nutrient losses from the Australian lamb and sheep meat value chain: a case study

Quantifying pre-consumer food and nutrient losses from the Australian lamb and sheep meat value chain: a case study

Overexpression of GmWRKY172 enhances cadmium tolerance in plants and reduces cadmium accumulation in soybean seeds

Simultaneous realization of cadmium bioavailability reduction and spinach growth promotion in acidic soils with calcined oyster shells and dolomite

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