Excess copper inhibits the growth of rice seedlings by decreasing uptake of nitrate

Huo, Kai; Shangguan, X. J.; Xia, Yan; Shen, Zhenguo; Chen, Chen

doi:10.1016/j.ecoenv.2019.110105

Cited by 35 publications

(13 citation statements)

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“…The interactive effect between Cu and N may be various in plants with different application levels of Cu or N. The negative impact of N supply (280 kg ha −1 ) on Cu uptake was observed in N. nivea grown in Cu-contaminated soils [ 35 ]. Furthermore, high levels of Cu inhibited the N uptake and upward translocation in Chinese cabbage, and influenced N metabolism in rice plant [ 36 , 37 ].…”

Section: Discussionmentioning

confidence: 99%

Synergistic Interaction between Copper and Nitrogen-Uptake, Translocation, and Distribution in Rice Plant

Cui

et al. 2022

Plants

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Interactions among nutrients have been widely recognized in plants and play important roles in crop growth and yield formation. However, the interplay of Cu and N in rice plants is not yet clear. In this study, rice plants were grown with different combinations of Cu and N supply. The effects of Cu-N interaction on the growth, yield production, Cu and N transport, and gene expression levels were analyzed. The results showed that the effect of N supply on rice growth and yield formation was more pronounced than that of Cu supply. The Cu supply significantly improved the uptake of N (by 9.52–30.64%), while the N supply significantly promoted the root-to-shoot translocation of Cu (by 27.28–38.45%) and distributed more Cu (1.85–19.16%) into the shoots and leaves. The results of qRT-PCR showed that +Cu significantly up-regulated the expression levels of both NO3− and NH4+ transporter genes OsNRTs and OsAMTs, including OsNRT1.1B, OsNRT2.1, OsNRT2.3a, OsNRT2.4, OsAMT1.2, OsAMT1.3, and OsAMT3.1. Meanwhile, +N significantly up-regulated the expression levels of Cu transporter genes OsHMA5 and OsYSL16. In addition, the supply of Cu up-regulated the expression levels of OsGS1;2, OsGS2, and OsNADH-GOGAT to 12.61-, 6.48-, and 6.05-fold, respectively. In conclusion, our study demonstrates a synergistic effect between Cu and N in rice plants. It is expected that our results would be helpful to optimize the application of N and Cu fertilizers in agriculture.

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Section: Discussionmentioning

confidence: 99%

Synergistic Interaction between Copper and Nitrogen-Uptake, Translocation, and Distribution in Rice Plant

Cui

et al. 2022

Plants

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“…-N and NO 3 − -N) mentioned above contribute to increase plant biomass, and NO 3 − -N is more readily absorbed by plants. In contraposition, high Cu levels reduce the uptake and accumulation of N, especially NO 3 − -N, in plants by reducing the expression of nitrate transporters (Hippler et al, 2018;Huo et al, 2020). As for metals, there is strong evidence on the positive effect on Cu solubilization and increased Cu concentration levels in soil after EDDS treatment (Muehlbachova, 2011;Yang et al, 2013;Luo et al, 2015).…”

mentioning

confidence: 99%

Reduction of Cu and nitrate leaching risk associated with EDDS-enhanced phytoextraction process by exogenous inoculation of plant growth promoting rhizobacteria

Duan

Liu

et al. 2022

Chemosphere

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“…In this study, a significant negative correlation ( p < 0.05) was found between Se, Cu, and Zn in the flesh of Se-rich navel oranges ( Figure 4D ). It was reported that excessive accumulation of Cu inhibits chloroplast enzyme activity and affects photosynthesis ( Huo et al, 2020 ), while the opposite is true for Se. Cu is mostly present in the soil as Cu 2+ -O-Fe 3+ and Cu-O-Al ( Luo et al, 2003 ), inhibiting the bioavailability of Cu.…”

Section: Discussionmentioning

confidence: 99%

Enrichment characteristics and dietary evaluation of selenium in navel orange fruit from the largest navel orange-producing area in China (southern Jiangxi)

et al. 2022

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Diet is the main intake source of selenium (Se) in the body. Southern Jiangxi is the largest navel orange-producing area in China, and 25.98% of its arable land is Se-rich. However, studies on the Se-rich characteristics and Se dietary evaluation of navel orange fruits in the natural environment of southern Jiangxi have not been reported. This study was large-scale and in situ samplings (n = 492) of navel oranges in southern Jiangxi with the goal of investigating the coupling relationships among Se, nutritional elements, and quality indicators in fruits and systematically evaluating Se dietary nutrition to the body. The results indicated that the average content of total Se in the flesh was 4.92 μg⋅kg–1, and the percentage of Se-rich navel oranges (total Se ≥ 10 μg⋅kg–1 in the flesh) was 7.93%, of which 66.74% of the total Se was distributed in the pericarp and 33.26% in the flesh. The average content of total Se in the flesh of Yudu County was the highest at 5.71 μg⋅kg–1. There was a significant negative correlation (p < 0.05) between Se, Cu, and Zn in the Se-rich flesh. According to the Se content in the flesh, the Se dietary nutrition evaluation was carried out, and it was found that the Se-enriched navel orange provided a stronger Se nutritional potential for the human body. These findings will help to identify Se enrichment in navel orange fruit in China’s largest navel orange-producing area and guide the selection of Se-rich soils for navel orange production in the future.

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Excess copper inhibits the growth of rice seedlings by decreasing uptake of nitrate

Cited by 35 publications

References 56 publications

Synergistic Interaction between Copper and Nitrogen-Uptake, Translocation, and Distribution in Rice Plant

Synergistic Interaction between Copper and Nitrogen-Uptake, Translocation, and Distribution in Rice Plant

Reduction of Cu and nitrate leaching risk associated with EDDS-enhanced phytoextraction process by exogenous inoculation of plant growth promoting rhizobacteria

Enrichment characteristics and dietary evaluation of selenium in navel orange fruit from the largest navel orange-producing area in China (southern Jiangxi)

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