Influence of external zinc and phosphorus supply on Cd uptake by rice (Oryza sativa L.) seedlings with root surface iron plaque

Liu, H.J.; Zhang, J.L.; Christie, Peter; Zhang, F.S.

doi:10.1007/s11104-007-9393-3

Cited by 45 publications

(8 citation statements)

References 41 publications

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“…Cd also affects the absorption and transport of essential nutrients in rice [15,16,18,19,20]. Additionally, Cd can be transported to rice grains, reducing their yield, quality, and nutrients [15,16,24,25,26,27]. In general, Cd stress inhibits rice growth [18,28,29,30].…”

Section: Toxic Effects Of Cadmium Exposure On Ricementioning

confidence: 99%

Advances in the Uptake and Transport Mechanisms and QTLs Mapping of Cadmium in Rice

Chen

Zou

Meng

et al. 2019

IJMS

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Cadmium (Cd), as a heavy metal, presents substantial biological toxicity and has harmful effects on human health. To lower the ingress levels of human Cd, it is necessary for Cd content in food crops to be reduced, which is of considerable significance for ensuring food safety. This review will summarize the genetic traits of Cd accumulation in rice and examine the mechanism of Cd uptake and translocation in rice. The status of genes related to Cd stress and Cd accumulation in rice in recent years will be summarized, and the genes related to Cd accumulation in rice will be classified according to their functions. In addition, an overview of quantitative trait loci (QTLs) mapping populations in rice will be introduced, aiming to provide a theoretical reference for the breeding of rice varieties with low Cd accumulation. Finally, existing problems and prospects will be put forward.

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Section: Toxic Effects Of Cadmium Exposure On Ricementioning

confidence: 99%

Advances in the Uptake and Transport Mechanisms and QTLs Mapping of Cadmium in Rice

Chen

Zou

Meng

et al. 2019

IJMS

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“…After the DCB extraction, roots and leaves were oven-dried at 70 8C to a constant weight. Oven-dried root and leaf samples were ground prior to digestion with concentrated HNO 3 -HClO 4 at 4 : 1 volumetric ratio (Liu et al, 2007a). Plant samples were placed in digestion tubes and reacted overnight with a 5 mL mixture of HNO 3 and HClO 4 (4 : 1, v/v).…”

Section: Iron Plaque Formation and Metal Treatmentmentioning

confidence: 99%

Root iron plaque formation and characteristics under N2 flushing and its effects on translocation of Zn and Cd in paddy rice seedlings (Oryza sativa)

2013

Annals of Botany

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“…The formation of iron plaque on the root surface due to the radial oxygen loss (ROL) and oxidants in the rhizosphere, where ferrous is subsequently oxidized to ferric iron with the precipitation of iron oxide or hydroxide on the root surface (Chen et al 1980; Taylor et al 1984). Root iron plaque has been shown to impede the entry of metal ions, such as Cd, Al, Pb and Zn in plants (Chen et al 2006; Liu et al 2007; Deng et al 2009). On the other hand, plant cell wall is another barrier to prevent Cd from entering and damaging the protoplast.…”

Section: Introductionmentioning

confidence: 99%

Aeration Increases Cadmium (Cd) Retention by Enhancing Iron Plaque Formation and Regulating Pectin Synthesis in the Roots of Rice (Oryza sativa) Seedlings

Zheng

Tao

et al. 2019

Rice

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Background Aeration and water management increasing rhizosphere oxygen amount significantly promote rice ( Oryza sativa ) growth and yield, but the effect of root aeration on cadmium (Cd) toxicity and accumulation in rice seedlings under hydroponic culture remains unclear. Results Results showed that aeration promoted rice seedling growth and alleviated Cd toxicity. Transverse section discovered that Cd accelerated root mature and senescence while aeration delayed the mature and senescence of roots. Non-invasive Micro-test Technology (NMT) showed that aeration increased net O 2 and Cd 2+ influxes on the surface of roots while decreased net Cd 2+ influx in xylem. Perls blue staining showed that aeration and Cd treatments increased iron plaque formation on the surface of roots. Results of metal concentration analysis showed that besides increasing Cd retention in iron plaque, aeration also increasing Cd retention in the cell wall of rice roots. Cell wall component analysis showed that aeration not only increased pectin content but also decreased pectin methylesterification degree (PMD) by increasing pectin methylesterase (PME) activity. Conclusions All of these results indicate that aeration not only delays root mature and senescence but also increases Cd retention in roots by enhancing iron plaque formation and regulating pectin synthesis in the roots of rice seedlings. Electronic supplementary material The online version of this article (10.1186/s12284-019-0291-0) contains supplementary material, which is available to authorized users.

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Influence of external zinc and phosphorus supply on Cd uptake by rice (Oryza sativa L.) seedlings with root surface iron plaque

Cited by 45 publications

References 41 publications

Advances in the Uptake and Transport Mechanisms and QTLs Mapping of Cadmium in Rice

Advances in the Uptake and Transport Mechanisms and QTLs Mapping of Cadmium in Rice

Root iron plaque formation and characteristics under N2 flushing and its effects on translocation of Zn and Cd in paddy rice seedlings (Oryza sativa)

Aeration Increases Cadmium (Cd) Retention by Enhancing Iron Plaque Formation and Regulating Pectin Synthesis in the Roots of Rice (Oryza sativa) Seedlings

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