Mitigation of Cd accumulation in paddy rice (Oryza sativa L.) by Fe fertilization

Chen, Zhe; Tang, Yetao; Yao, Aijun; Cao, Jing; Wu, Zhuohao; Peng, Zheran; Wang, Shizhong; Xiao, Shi; Baker, A. J. M.; Qiu, Rongliang

doi:10.1016/j.envpol.2017.08.055

Cited by 81 publications

(19 citation statements)

References 52 publications

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“…It was further confirmed that Fe 2+ cations could compete with Cd 2+ ions for adsorption sites at the roots surface and as a result uptake of Cd in rice is decreased [26]. Consistence with our results [27,28], it was observed that under a Fe-sufficient supply, Cd concentration in rice stem and leaves was reduced. Fe fertilization directly and effectively increased Fe content and decreased Cd contamination to some extent.…”

Section: Discussionsupporting

confidence: 87%

“…The results are in accordance with [49], who stated the higher expression of OsHMA3 in the root. Furthermore it was confirmed that expression of OsHMA3 was significantly increased in excessive Fe treatment [27]. Lu [50] reported, that overexpression of OsHMA3 significantly reduced Cd translocation from roots to shoots and enhanced Cd tolerance.…”

Section: Plos Onementioning

confidence: 67%

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Effects of Fe and Mn cations on Cd uptake by rice plant in hydroponic culture experiment

Hussain

Ying

et al. 2020

PLoS ONE

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Iron (Fe) and manganese (Mn) are nutritional components of rice, plays an important role in its physiological processes and can minimize absorption of cadmium (Cd) in rice. Fe, Mn, and Cd transporters such as CAL1, OsNRAMP5, OsNRAMP1, OsIRT1, OsHMA3, and OsNAAT1 regulate uptake of Cd in rice. However, the effect of exogenous application of Fe, and Mn on the accumulation of Cd and relative expression (RE) of these transporters in rice has not been investigated. Therefore, a hydroponic culture experiment was conducted to investigate the impact of Fe and Mn on Cd uptake and RE of these transporters in rice. The results showed that the Fe and Mn application significantly decreased Cd in the roots and shoots of rice. Whereas, Cd concentration in the rice significantly increased with increasing Cd concentration in the solution. The addition of manganese in the culture medium can reduce the cadmium content of rice roots by 11.9–82.3% and shoots by 11.6–85.0%, while the addition of iron in the culture medium can reduce the cadmium content of rice roots and shoots by 26–65% and 9–683% respectively. Meanwhile, application of sufficient doses of Fe and Cd in solution culture increased RE of CAL1, OsNRAMP5, OsNRAMP1, OsIRT1, and OsNAAT1 in roots, whereas expression level of OsHMA3 was decreased. Similarly, expression level of CAL1, OsNRAMP5, and OsNRAMP1 significantly increased in roots in high Cd and Mn deficient treatments. This may be concluded that the Cd increases expression of CAL1, OsNRAMP5, OsNRAMP1, OsIRT1, and OsNAAT1 but decreases OsHMA3 expression in rice roots, which resulted in increased Cd uptake in hydroponically grown rice.

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Section: Discussionsupporting

confidence: 87%

Section: Plos Onementioning

confidence: 67%

Effects of Fe and Mn cations on Cd uptake by rice plant in hydroponic culture experiment

Hussain

Ying

et al. 2020

PLoS ONE

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“…In addition, the concentration of iron and cadmium was positively correlated during rice seedling growth [70]. It has been reported that increasing the supply of boron, iron, zinc, silicon, or magnesium can reduce the accumulation and toxicity of cadmium in rice [71,72,73,74,75,76].…”

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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“…Previous studies have indicated that increased Fe supply or rhizospheric Fe availability effectively inhibits Cd uptake in plants, which is closely associated with the competition between Fe and Cd for several metal transporters (Wu et al, 2012;Sebastian and Prasad, 2016). Cd-stressed plants often exhibit typical chlorotic symptoms, similar to those occurring in Fe deficient plants (Chen et al, 2017). Cd stress can trigger Fe deficiency responses, which are accompanied by the up-regulation of Fe acquisition-associated genes including FIT, encoding a functional homolog of the bHLH transcription factor Fer, IRT1 encoding an iron-regulated transporter, and FRO2, encoding a putative ferric reduction oxidase (Lešková et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Acetic Acid-Producing Endophyte Lysinibacillus fusiformis Orchestrates Jasmonic Acid Signaling and Contributes to Repression of Cadmium Uptake in Tomato Plants

et al. 2021

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Diverse signaling pathways regulated by phytohormones are essential for the adaptation of plants to adverse environments. Root endophytic bacteria can manipulate hormone-related pathways to benefit their host plants under stress conditions, but the mechanisms underlying endophyte-mediated plant stress adaptation remain poorly discerned. Herein, the acetic acid-producing endophytic bacteria Lysinibacillus fusiformis Cr33 greatly reduced cadmium (Cd) accumulation in tomato plants. L. fusiformis led to a marked increase in jasmonic acid (JA) content and down-regulation of iron (Fe) uptake-related genes in Cd-exposed roots. Accordantly, acetic acid treatment considerably increased the JA content and inhibited root uptake of Cd uptake. In addition, the Cr33-inoculated roots displayed the increased availability of cell wall and rhizospheric Fe. Inoculation with Cr33 notably reduced the production of nitric oxide (NO) and suppressed Fe uptake systems in the Cd-treated roots, thereby contributing to hampering Cd absorption. Similar results were also observed for Cd-treated tomato plants in the presence of exogenous JA or acetic acid. However, chemical inhibition of JA biosynthesis greatly weakened the endophyte-alleviated Cd toxicity in the plants. Collectively, our findings indicated that the endophytic bacteria L. fusiformis effectively prevented Cd uptake in plants via the activation of acetic acid-mediated JA signaling pathways.

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Mitigation of Cd accumulation in paddy rice (Oryza sativa L.) by Fe fertilization

Cited by 81 publications

References 52 publications

Effects of Fe and Mn cations on Cd uptake by rice plant in hydroponic culture experiment

Effects of Fe and Mn cations on Cd uptake by rice plant in hydroponic culture experiment

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

Acetic Acid-Producing Endophyte Lysinibacillus fusiformis Orchestrates Jasmonic Acid Signaling and Contributes to Repression of Cadmium Uptake in Tomato Plants

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