A transcriptomic view of cadmium retention in roots of cadmium-safe rice line (Oryza sativa L.)

Wang, Keji; Yu, Haiying; Zhang, Xizhou; Ye, Daihua; Huang, Huagang; Wang, Yongdong; Zheng, Zicheng; Li, Tingxuan

doi:10.1016/j.jhazmat.2021.126379

Cited by 39 publications

(12 citation statements)

References 104 publications

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“…They are key enzymes for cysteine biosynthesis, which is the precursor for GSH biosynthesis [62]. Meanwhile, the genes related to NR, NirA, GS and GDH, and γ-GCS were also up-regulated under Cd stress in T. repens, which is consistent with the results of B. chinensis [63], Setaria italica [64], O. sativa [33]. In the glutathione metabolism, the DEGs related to GST were up-regulated in the roots of T. repens, which have unique functions in Cd detoxification [65].…”

Section: Discussionsupporting

confidence: 79%

“…NAC, MYB, DREB, WRKY, bZIP, bHLH, and TCP were identified as up/down-regulated under Cd stress in T. repens. Among them, the number of WRKY and TCP genes was the most, and their function in response to Cd stress has been verified in O. sativa [33] and A. thaliana [78]. The regulation of bHLH and bZIP can improve the Cd tolerance ability [79].…”

Section: Discussionmentioning

confidence: 98%

“…Cd translocation factor (TF) was defined as the ratio of Cd concentration in the leaves to that in the roots [5]. To determine the subcellular distribution of Cd in leaves and roots, the subcellular components were separated according to previous methods [33]. The Cd concentration of three isolated subcellular components, cell wall, organelle, and cytoplasm, was measured by ICP-OES.…”

Section: Concentration and Subcellular Distribution In Leaves And Rootsmentioning

confidence: 99%

“…Since T. repens has great potential in phytoremediation, elucidating the molecular mechanism underlying T. repens Cd response is essential. In recent years, RNA sequencing is a reliable and economic technology, and transcriptomic has been widely used to reveal differential response mechanisms among plants under Cd stress, such as Zea mays (Z. mays) [32], Oryza sativa (O. sativa) [33], Lolium multiflorum [34], and Nicotiana species [35].…”

Section: Introductionmentioning

confidence: 99%

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Unraveling Cadmium Toxicity in Trifolium repens L. Seedling: Insight into Regulatory Mechanisms Using Comparative Transcriptomics Combined with Physiological Analyses

Fan

et al. 2022

IJMS

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Trifolium repens (T. repens) can accumulate significant amounts of heavy metal ions, and has strong adaptability to wide environmental conditions, and relatively large biomass, which is considered a potential plant for phytoremediation. However, the molecular mechanisms of T. repens involved in Cd tolerance have not yet been studied in detail. This study was conducted to examine the integrative responses of T. repens exposed to a high-level CdCl2 by investigating the physiological and transcriptomic analyses. The results suggested that T. repens seedlings had a high degree of tolerance to Cd treatment. The roots accumulated higher Cd concentration than leaves and were mainly distributed in the cell wall. The content of MDA, soluble protein, the relative electrolyte leakage, and three antioxidant enzymes (POD, SOD, and APX) was increased with the Cd treatment time increasing, but the CAT enzymes contents were decreased in roots. Furthermore, the transcriptome analysis demonstrated that the differentially expressed genes (DEGs) mainly enriched in the glutathione (GSH) metabolism pathway and the phenylpropanoid biosynthesis in the roots. Overexpressed genes in the lignin biosynthesis in the roots might improve Cd accumulation in cell walls. Moreover, the DEGs were also enriched in photosynthesis in the leaves, transferase activity, oxidoreductase activity, and ABA signal transduction, which might also play roles in reducing Cd toxicity in the plants. All the above, clearly suggest that T. repens employ several different mechanisms to protect itself against Cd stress, while the cell wall biosynthesis and GSH metabolism could be considered the most important specific mechanisms for Cd retention in the roots of T. repens.

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Section: Discussionsupporting

confidence: 79%

Section: Discussionmentioning

confidence: 98%

Section: Concentration and Subcellular Distribution In Leaves And Rootsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Unraveling Cadmium Toxicity in Trifolium repens L. Seedling: Insight into Regulatory Mechanisms Using Comparative Transcriptomics Combined with Physiological Analyses

Fan

et al. 2022

IJMS

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“…There has been much research on the response or tolerance of rice to cadmium (Wang et al, 2021d, Yang et al, 2021a, Meng et al, 2015, but there are few studies on the effect of the seed germination stage of rice. The process of rice seed has been studied deeply (Nie et al, 2020, Chen et al, 2019, which provides useful clues to understand the cadmium tolerance at its bud stage.…”

mentioning

confidence: 99%

Cadmium Affect Root Growth in Japonica Rice (Oryza sativa L.) Negatively Interacting with JA at Bud Stage

Zeng

et al. 2022

Preprint

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To explore the role of jasmonic acid in seed germination of rice under Cd stress, the growth indices of JJ818 and NJ9108 under the bud stage were measured for identifying study the molecular mechanism of variety difference in cadmium tolerance. The tolerant variety JJ818 and the sensitive variety NJ9108 were treated under 150 µmol·L− 1 Cd concentration, methyl jasmonate (MeJA), and Ibuprofen (IBU) alone or in combination. The germination rate, root length, bud length, soluble protein content, soluble sugar content, and sugar components, α-amylase activity, and its related gene expression were measured. The results showed that the root length of the two rice materials were significantly inhibited during germination under the Cd treatment, however, the germination rate and shoot length had little affected. MeJA decreased the germination rate, root length and shoot length, and the contents of soluble sugar and sugar components and α-amylase activity as well. However, IBU treatment showed the opposite trend. Cd treatment also decreased the expression of the αAmy and RL1, and the accompanying changes of up-regulated the gene expression of JIOsPR10, OsLOX1, and OsLOX4 related to synthesizing jasmonic acid(JA). The results showed that JA negatively regulates the cadmium of rice and the genes related to the synthesis and response of JA were related to the variety difference in cadmium tolerance at the bud stage. Compared with the NJ9108, JJ818 was insensitive to jasmonic acid.

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Cadmium Toxicity in Rice and Wheat Plants: An Apprehension of Translocation and Tolerance Mechanisms

Dey,

Lama,

Ghosh

et al. 2024

Environmental Science and Engineering

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A transcriptomic view of cadmium retention in roots of cadmium-safe rice line (Oryza sativa L.)

Cited by 39 publications

References 104 publications

Unraveling Cadmium Toxicity in Trifolium repens L. Seedling: Insight into Regulatory Mechanisms Using Comparative Transcriptomics Combined with Physiological Analyses

Unraveling Cadmium Toxicity in Trifolium repens L. Seedling: Insight into Regulatory Mechanisms Using Comparative Transcriptomics Combined with Physiological Analyses

Cadmium Affect Root Growth in Japonica Rice (Oryza sativa L.) Negatively Interacting with JA at Bud Stage

Cadmium Toxicity in Rice and Wheat Plants: An Apprehension of Translocation and Tolerance Mechanisms

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