Advances in molecular mechanisms underlying cadmium uptake and translocation in rice

Ai, Hao; Wu, Daxia; Li, Chunli; Hou, Mingxiao

doi:10.3389/fpls.2022.1003953

Cited by 19 publications

(9 citation statements)

References 127 publications

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“…The process of Cd assimilation by roots involves competition between Cd and other minerals with similar properties for absorption sites. Cd is a suitable substitute for Ca due to its analogous ionic radius, charge, and behavior [ 64 ].…”

Section: Impacts Of Nps On Plants Under Hm Toxicitymentioning

confidence: 99%

Nano-enabled agrochemicals: mitigating heavy metal toxicity and enhancing crop adaptability for sustainable crop production

Ghorbani,

Emamverdian,

Pehlivan

et al. 2024

J Nanobiotechnol

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The primary factors that restrict agricultural productivity and jeopardize human and food safety are heavy metals (HMs), including arsenic, cadmium, lead, and aluminum, which adversely impact crop yields and quality. Plants, in their adaptability, proactively engage in a multitude of intricate processes to counteract the impacts of HM toxicity. These processes orchestrate profound transformations at biomolecular levels, showing the plant’s ability to adapt and thrive in adversity. In the past few decades, HM stress tolerance in crops has been successfully addressed through a combination of traditional breeding techniques, cutting-edge genetic engineering methods, and the strategic implementation of marker-dependent breeding approaches. Given the remarkable progress achieved in this domain, it has become imperative to adopt integrated methods that mitigate potential risks and impacts arising from environmental contamination on yields, which is crucial as we endeavor to forge ahead with the establishment of enduring agricultural systems. In this manner, nanotechnology has emerged as a viable field in agricultural sciences. The potential applications are extensive, encompassing the regulation of environmental stressors like toxic metals, improving the efficiency of nutrient consumption and alleviating climate change effects. Integrating nanotechnology and nanomaterials in agrochemicals has successfully mitigated the drawbacks associated with traditional agrochemicals, including challenges like organic solvent pollution, susceptibility to photolysis, and restricted bioavailability. Numerous studies clearly show the immense potential of nanomaterials and nanofertilizers in tackling the acute crisis of HM toxicity in crop production. This review seeks to delve into using NPs as agrochemicals to effectively mitigate HM toxicity and enhance crop resilience, thereby fostering an environmentally friendly and economically viable approach toward sustainable agricultural advancement in the foreseeable future.

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Section: Impacts Of Nps On Plants Under Hm Toxicitymentioning

confidence: 99%

Nano-enabled agrochemicals: mitigating heavy metal toxicity and enhancing crop adaptability for sustainable crop production

Ghorbani,

Emamverdian,

Pehlivan

et al. 2024

J Nanobiotechnol

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“…Therefore, understanding the transport mechanism of Cd and the factors influencing Cd accumulation in rice is crucial for developing effective Cd reduction strategies and preventing harm to the human body. In recent years, an increasing number of studies on the molecular mechanism of Cd metabolism in rice in China and other countries to clarify the physiological process and regulatory factors of Cd accumulation and transport from the soil to rice grains have been conducted, which lay an important theoretical foundation for future cultivation of low-Cd rice varieties [ 120 ]. Preliminary success has also been achieved in cultivating low-Cd rice by genetic engineering.…”

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

Genetic Regulation Mechanism of Cadmium Accumulation and Its Utilization in Rice Breeding

Chen

Wang

2023

IJMS

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Cadmium (Cd) is a heavy metal whose pollution in rice fields leads to varying degrees of Cd accumulation in rice. Furthermore, the long-term consumption of Cd-contaminated rice is harmful to human health. Therefore, it is of great theoretical significance and application value to clarify the genetic regulation mechanism of Cd accumulation in rice and cultivate rice varieties with low Cd accumulation for the safe use of Cd-contaminated soils. This review summarizes the effects of Cd on rice growth, yield, and quality; the physiological and molecular mechanisms of Cd absorption in the roots, loading, and transport of Cd in the xylem, the distribution of Cd in nodes, redistribution of Cd in leaves, and accumulation of Cd in the grains; the regulation mechanism of the Cd stress response; and the breeding of rice with low Cd accumulation. Future directions on the genetic regulation of Cd in rice and application are also discussed. This review provides a theoretical basis for studies exploring the genetic regulation of Cd stress in rice. It also offers a basis for formulating effective strategies to reduce the Cd content in rice.

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“…Because Cd is a non‐essential element for rice, there are no specialized Cd absorption and transport proteins in rice (X. Huang et al., 2020). As a result, Cd penetrates the rice roots mostly via the absorption pathways of additional essential substances (Ai et al., 2022). Cadmium accumulation in rice is affected by the varying degrees of pollution found in different climates and soils.…”

Section: Introductionmentioning

confidence: 99%

Mitigation strategies for excessive cadmium in rice

Song

Wang

et al. 2023

Comp Rev Food Sci Food Safe

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Cadmium (Cd)‐contaminated rice is a human food safety problem that lacks a clear solution. A large amount of rice having an excessive Cd content is processed yearly, but it cannot be discarded and placed in landfills because it will cause secondary pollution. How do we best cope with this toxic rice? From the perspectives of food safety, food waste prevention, and human hunger eradication, the use of contemporary physical, chemical, and biological techniques to lower the Cd content in postharvest Cd‐contaminated rice so that it can be used safely is the best course of action. In this review, the contamination, chemical speciation, and distribution of Cd in rice are analyzed and discussed, as are the methods of Cd removal from rice, including a comparison of the advantages and disadvantages of various techniques. Owing to the limitations of current technology, research and technological development recommendations for removing Cd from rice grain are presented. The chemical and biological methods produce higher Cd‐removal rates than physical methods. However, they are limited to small‐scale laboratory applications and cannot be applied on a large industrial scale. For the efficient safe removal of Cd from food, mixed fermentation with lactic acid bacteria and yeast has good application prospects. However, limited strains having high Cd‐removal rates have been screened. In addition, modern biotechnology has rarely been applied to reduce rice Cd levels. Therefore, applying genetic engineering techniques to rapidly obtain microorganisms with high Cd‐removal rates in rice should be the focus of future research.

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Advances in molecular mechanisms underlying cadmium uptake and translocation in rice

Cited by 19 publications

References 127 publications

Nano-enabled agrochemicals: mitigating heavy metal toxicity and enhancing crop adaptability for sustainable crop production

Nano-enabled agrochemicals: mitigating heavy metal toxicity and enhancing crop adaptability for sustainable crop production

Genetic Regulation Mechanism of Cadmium Accumulation and Its Utilization in Rice Breeding

Mitigation strategies for excessive cadmium in rice

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