Understanding the physiological and molecular mechanisms of grain cadmium accumulation conduces to produce low cadmium grain crops: a review

IF 3.5 3区生物学 Q1 PLANT SCIENCES Plant Growth Regulation Pub Date : 2023-12-15 DOI:10.1007/s10725-023-01105-x

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Abstract

Soil cadmium (Cd), which can occur naturally in the environment or arise from industrial pollution, seriously affects crop quality and threatens human health. Therefore, reducing grain Cd accumulation (GCA) has become an important topic worldwide. To comprehensively assess the research status of GCA, we reviewed the research into physiological and molecular mechanisms of GCA, including the characteristics of Cd uptake, transport, and accumulation from roots to grain; furthermore, literature on GCA-related quantitative trait locus identification and gene functional analysis were reviewed. Based on physiological and molecular mechanisms, two strategies to reduce GCA, namely soil management and genetic improvement, were also critically summarized. It became clear that further research is necessary into the physiological mechanisms of Cd uptake, transportation, and accumulation in grain. It is also important to accelerate the discovery and use of effective functional markers and genes associated with low Cd accumulation and to improve the feasibility and potential value of breeding low Cd grain crops.

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了解谷物镉积累的生理和分子机制有助于生产低镉谷物：综述

摘要土壤中的镉（Cd）可能自然存在于环境中，也可能来自工业污染，它严重影响作物品质并威胁人类健康。因此，减少谷物镉积累（GCA）已成为世界范围内的一个重要课题。为了全面评估谷粒镉积累的研究现状，我们综述了谷粒镉积累的生理和分子机制研究，包括从根系到谷粒的镉吸收、转运和积累特征；此外，还综述了与谷粒镉积累相关的数量性状位点鉴定和基因功能分析文献。基于生理和分子机制，还对减少 GCA 的两种策略，即土壤管理和遗传改良进行了批判性总结。显然，有必要进一步研究镉在谷物中的吸收、运输和积累的生理机制。此外，加快发现和利用与低镉积累相关的有效功能标记和基因，提高低镉粮食作物育种的可行性和潜在价值也非常重要。

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来源期刊

Plant Growth Regulation 生物-植物科学

CiteScore

6.90

自引率

9.50%

发文量

139

审稿时长

4.5 months

期刊介绍： Plant Growth Regulation is an international journal publishing original articles on all aspects of plant growth and development. We welcome manuscripts reporting question-based research using hormonal, physiological, environmental, genetical, biophysical, developmental or molecular approaches to the study of plant growth regulation. Emphasis is placed on papers presenting the results of original research. Occasional reviews on important topics will also be welcome. All contributions must be in English.