The tonoplast-localized transporter OsABCC9 is involved in cadmium tolerance and accumulation in rice

Yang, Guangsheng; Fu, Shan; Huang, Jingjing; Li, Longying; Long, Yan; Wei, Qiuxing; Wang, Zhigang; Chen, Zhiwei; Xia, Jixing

doi:10.1016/j.plantsci.2021.110894

Cited by 57 publications

(27 citation statements)

References 41 publications

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“…In O. sativa , OsABCC9 was predominantly expressed in the root stele after Cd treatment ( Figure 1 , Table 3 ). It mainly mediates Cd accumulation by sequestering of Cd into the root vacuoles, thereby reducing its translocation to the shoots and grains [ 98 ]. The plasma membrane-localized OsABCG36 transporter functions as a Cd extrusion pump ( Figure 1 , Table 3 ), thus increasing Cd tolerance by exporting it or its conjugates from the root cells in rice.…”

Section: Atp-binding Cassettementioning

confidence: 99%

Advances in Genes-Encoding Transporters for Cadmium Uptake, Translocation, and Accumulation in Plants

Tao

2022

Toxics

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Cadmium (Cd) is a heavy metal that is highly toxic for plants, animals, and human beings. A better understanding of the mechanisms involved in Cd accumulation in plants is beneficial for developing strategies for either the remediation of Cd-polluted soils using hyperaccumulator plants or preventing excess Cd accumulation in the edible parts of crops and vegetables. As a ubiquitous heavy metal, the transport of Cd in plant cells is suggested to be mediated by transporters for essential elements such as Ca, Zn, K, and Mn. Identification of the genes encoding Cd transporters is important for understanding the mechanisms underlying Cd uptake, translocation, and accumulation in either crop or hyperaccumulator plants. Recent studies have shown that the transporters that mediate the uptake, transport, and accumulation of Cd in plants mainly include members of the natural resistance-associated macrophage protein (Nramp), heavy metal-transporting ATPase (HMA), zinc and iron regulated transporter protein (ZIP), ATP-binding cassette (ABC), and yellow stripe-like (YSL) families. Here, we review the latest advances in the research of these Cd transporters and lay the foundation for a systematic understanding underlying the molecular mechanisms of Cd uptake, transport, and accumulation in plants.

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Section: Atp-binding Cassettementioning

confidence: 99%

Advances in Genes-Encoding Transporters for Cadmium Uptake, Translocation, and Accumulation in Plants

Tao

2022

Toxics

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“…Transcriptome studies have demonstrated that several members are involved in the response process of Cd stress and are induced by it; however, its mechanism remains unclear. Among them, OsABCC9 contributes to Cd vacuolar sequestration in rice roots ( Yang et al, 2021 ). OsABCC9 is located in the tonoplasts of the parenchyma cells, and Cd induces the expression of OsABCC9 .…”

Section: Detoxification Mechanism and Related Genes Of CD Absorption ...mentioning

confidence: 99%

Advances in molecular mechanisms underlying cadmium uptake and translocation in rice

et al. 2022

Front. Plant Sci.

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The increasing cadmium (Cd) pollution in paddy fields has severely threatened China’s ecological and food safety. Cultivation of low Cd accumulation varieties to reduce Cd content in rice or cultivation of Cd-tolerant varieties for phytoremediation are considered effective methods to control Cd pollution in paddy fields. However, the underlying molecular mechanism of Cd absorption and transport by rice plants needs to be deciphered to cultivate these varieties. Here, we summarized the molecular mechanisms underlying Cd absorption and transport in rice, as well as the variation of Cd accumulation among rice varieties, the QTLs related to Cd accumulation in rice, and discusses the direction of future research.

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“…Melatonin is another antioxidant and scavenger for free radicals, which is present in all organisms (Yang et al, 2021). Melatonin stimulates the antioxidant enzymes, activates the ascorbate‐glutathione cycle, and reinforces the plant metabolism to counteract the harmful metals (Moustafa‐Farag et al, 2020).…”

Section: Mechanisms Of Stress Tolerance In Ricementioning

confidence: 99%

Heavy metal stress in rice: Uptake, transport, signaling, and tolerance mechanisms

Kaur

Das

Bansal

et al. 2021

Physiologia Plantarum

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Heavy metal contamination of agricultural fields has become a global concern as it causes a direct impact on human health. Rice is the major food crop for almost half of the world population and is grown under diverse environmental conditions, including heavy metal‐contaminated soil. In recent years, the impact of heavy metal contamination on rice yield and grain quality has been shown through multiple approaches. In this review article, different aspects of heavy metal stress, that is uptake, transport, signaling and tolerance mechanisms, are comprehensively discussed with special emphasis on rice. For uptake, some of the transporters have specificity to one or two metal ions, whereas many other transporters are able to transport many different ions. After uptake, the intercellular signaling is mediated through different signaling pathways involving the regulation of various hormones, alteration of calcium levels, and the activation of mitogen‐activated protein kinases. Heavy metal stress signals from various intermediate molecules activate various transcription factors, which triggers the expression of various antioxidant enzymes. Activated antioxidant enzymes then scavenge various reactive oxygen species, which eventually leads to stress tolerance in plants. Non‐enzymatic antioxidants, such as ascorbate, metalloids, and even metal‐binding peptides (metallothionein and phytochelatin) can also help to reduce metal toxicity in plants. Genetic engineering has been successfully used in rice and many other crops to increase metal tolerance and reduce heavy metals accumulation. A comprehensive understanding of uptake, transport, signaling, and tolerance mechanisms will help to grow rice plants in agricultural fields with less heavy metal accumulation in grains.

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The tonoplast-localized transporter OsABCC9 is involved in cadmium tolerance and accumulation in rice

Cited by 57 publications

References 41 publications

Advances in Genes-Encoding Transporters for Cadmium Uptake, Translocation, and Accumulation in Plants

Advances in Genes-Encoding Transporters for Cadmium Uptake, Translocation, and Accumulation in Plants

Advances in molecular mechanisms underlying cadmium uptake and translocation in rice

Heavy metal stress in rice: Uptake, transport, signaling, and tolerance mechanisms

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