The Influence of pH on Cadmium Accumulation in Seedlings of Rice (Oryza sativa L.)

Ali, Umed; Zhong, Min; Shar, Tahmina; Fiaz, Sajid; Xie, Lihong; Jiao, Guiai; Ahmad, Shakeel; Sheng, Zhonghua; Tang, Shaoqing; Wei, Xiangjin

doi:10.1007/s00344-019-10034-x

Cited by 24 publications

(14 citation statements)

References 36 publications

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“…Cd uptake, transport and accumulation in the plant is affected by many physical and chemical factors, such as soil type, pH, cation exchange capacity, plant tolerance, etc. 17 – 19 . To minimize Cd bioaccumulation in plants, it has been reported that Zinc which is an important micronutrient could play this role 20 , 21 .…”

Section: Introductionmentioning

confidence: 99%

Interactive effect of potassium and cadmium on growth, root morphology and chlorophyll a fluorescence in tomato plant

Naciri

Lahrir

Benadis

et al. 2021

Sci Rep

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A hydroponic experiment was conducted to evaluate the role of potassium (K) in tomato plant growth exposed to cadmium (Cd) stress. In this work, the effects of three potassium nutrition regimes (155, 232 and 310 ppm of K) combined with Cd at different levels (0, 12 and 25 µM of CdCl2) on chlorophyll content index, root and shoot dry weights, root morphology, chlorophyll a fluorescence and translocation factor were analyzed. The results showed a negative effect of cadmium, at different concentrations, on all these parameters. However, optimization of K nutrition has shown promising results by limiting the negative effect of Cd. A positive effect of the high concentration of K (310 ppm) was observed on leaf chlorophyll content and chlorophyll a fluorescence compared to 232 and 155 ppm under Cd stress. K supply improved the electron transport at PSI side indicated by the increase in the amplitude of the I–P phase of OJIP transient. Also, K at a concentration of 310 ppm significantly reduced Cd translocation from root to shoot and improved root and shoot growth parameters in the presence of Cd. K supplementation can reduce the negative effect of Cd by improving photosynthesis and promoting chlorophyll synthesis. The optimization of nutrients composition and concentration might be a good strategy to reduce the impact of Cd on plant growth and physiology.

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Section: Introductionmentioning

confidence: 99%

Interactive effect of potassium and cadmium on growth, root morphology and chlorophyll a fluorescence in tomato plant

Naciri

Lahrir

Benadis

et al. 2021

Sci Rep

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“…Cd concentrations, pH, and other factors (Ali et al, 2019;Florijn and Van Beusichem;Gill and Tuteja, 2011). In rice, Cd accumulation increases as the pH of the culture medium increases from 3.5 to 6.0, but it decreases as the pH increases to 7.0 and 8.0 (Ali et al, 2019).…”

Section: Discussionmentioning

confidence: 96%

“…Cadmium accumulation is related to environmental factors (Gill and Tuteja, 2011; Zhang et al, 2018a). Several studies have demonstrated that plant Cd contents are influenced by soil Cd concentrations, pH, and other factors (Ali et al, 2019; Florijn and Van Beusichem; Gill and Tuteja, 2011). In rice, Cd accumulation increases as the pH of the culture medium increases from 3.5 to 6.0, but it decreases as the pH increases to 7.0 and 8.0 (Ali et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

“…Several studies have demonstrated that plant Cd contents are influenced by soil Cd concentrations, pH, and other factors (Ali et al, 2019; Florijn and Van Beusichem; Gill and Tuteja, 2011). In rice, Cd accumulation increases as the pH of the culture medium increases from 3.5 to 6.0, but it decreases as the pH increases to 7.0 and 8.0 (Ali et al, 2019). Similar to these findings, we determined that the average maize grain Cd content in two seasons in ZZ was higher than that in NX, which is consistent with the observation that the soil Cd concentration in ZZ was higher than that in NX.…”

Section: Discussionmentioning

confidence: 99%

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Natural variations in the P-type ATPase heavy metal transporter ZmCd1 controlling cadmium accumulation in maize grains

Tang

Luo

Zhang

et al. 2021

Preprint

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SummaryCadmium (Cd) accumulation in maize grains is detrimental to human health. Developing maize varieties with low-Cd contents via marker-assisted selection is important for ensuring the production of maize grains safe for consumption. However, the key gene controlling maize grain Cd accumulation has not been cloned. In this study, we identified two major loci for maize grain Cd accumulation (qCd1 and qCd2) on chromosome 2 during a genome-wide association study (GWAS). The qCd1 locus was analyzed by bulked segregant RNA-seq and fine mapping with a biparental segregating population of Jing724 (low-Cd line) and Mo17 (high-Cd line). The ZmCd1 candidate gene in the qCd1 locus encodes a vacuolar membrane-localized heavy metal P-type ATPase transporter, ZmHMA3, which is orthologous to the tonoplast Cd transporter OsHMA3. Genomic DNA sequence and transcript analyses suggested that a transposon in intron 1 of ZmCd1 is responsible for the abnormal amino acid sequence in Mo17. An EMS mutant analysis and an allelism test confirmed ZmCd1 influences maize grain Cd accumulation. The natural variations in ZmCd1 were used to develop four PCR-based molecular markers, which revealed five ZmCd1 haplotypes in the GWAS population. The molecular markers were also used to predict the grain Cd contents in commonly cultivated maize germplasms in China. The predicted Cd contents for 36 inbred lines and 13 hybrids were consistent with the measured Cd contents. Furthermore, several low-Cd elite inbred lines and hybrids were identified, including Jing2416, MC01, Jingnonke728, and Jingke968. Therefore, the molecular markers developed in this study are applicable for molecular breeding and developing maize varieties with low grain Cd contents.

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“…Due to heavy metal stress, different mitogen activated protein kinases (MAPKs) are activated. Oryza sativa multiple stress responsive MK2 ( OsMSRMK2 ), wound and JA-uninducible MK1 ( OsWJUMK1 ), and OsMSRMK3 are induced in response to Cd 2+ and Cu 2+ in roots and leaves ( Ali et al, 2019 ). Similarly, Stress Activated MAPK ( SAMK ), Medicago MAP kinase3 ( MMK 3 ), Medicago MAP kinase2 ( MMK 2 ), and salt stress induced MAPK ( SIMK ) are activated in Medicago sativa in response to CdCl 2 and CuCl 2 stress ( Opdenakker et al, 2012b ).…”

Section: Role Of Transcription Factors Under Abiotic Stressesmentioning

confidence: 99%

Harnessing the potential of plant transcription factors in developing climate resilient crops to improve global food security: Current and future perspectives

Shahzad

Jamil

Ahmad

et al. 2021

Saudi Journal of Biological Sciences

Self Cite

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Crop plants should be resilient to climatic factors in order to feed ever-increasing populations. Plants have developed stress-responsive mechanisms by changing their metabolic pathways and switching the stress-responsive genes. The discovery of plant transcriptional factors (TFs), as key regulators of different biotic and abiotic stresses, has opened up new horizons for plant scientists. TFs perceive the signal and switch certain stress-responsive genes on and off by binding to different cis -regulatory elements. More than 50 families of plant TFs have been reported in nature. Among them, DREB, bZIP, MYB, NAC, Zinc-finger, HSF, Dof, WRKY, and NF-Y are important with respect to biotic and abiotic stresses, but the potential of many TFs in the improvement of crops is untapped. In this review, we summarize the role of different stress-responsive TFs with respect to biotic and abiotic stresses. Further, challenges and future opportunities linked with TFs for developing climate-resilient crops are also elaborated.

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The Influence of pH on Cadmium Accumulation in Seedlings of Rice (Oryza sativa L.)

Cited by 24 publications

References 36 publications

Interactive effect of potassium and cadmium on growth, root morphology and chlorophyll a fluorescence in tomato plant

Interactive effect of potassium and cadmium on growth, root morphology and chlorophyll a fluorescence in tomato plant

Natural variations in the P-type ATPase heavy metal transporter ZmCd1 controlling cadmium accumulation in maize grains

Harnessing the potential of plant transcription factors in developing climate resilient crops to improve global food security: Current and future perspectives

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