Boron inhibits cadmium uptake in wheat (Triticum aestivum) by regulating gene expression

Qin, Shiyu; Liu, Hongen; Rengel, Zed; Gao, Wei; Nie, Zhaojun; Chang, Li; Hou, Mingyang; Cheng, Jin Q.; Zhao, Peng

doi:10.1016/j.plantsci.2020.110522

Cited by 33 publications

(14 citation statements)

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“…It suggested that Cd might inhibit the root xylem boron loading and boron recycling from source leaves to sinks. Previous studies show increased boron supply alleviates Cd toxicity through inhibiting Cd uptake and increasing cell wall-mediated Cd retention [ 59 , 60 ]. Therefore, application of boron fertilizers could be used to reduce Cd accumulation and enhance Cd resistance.…”

Section: Discussionmentioning

confidence: 99%

Integrated ionomic and transcriptomic dissection reveals the core transporter genes responsive to varying cadmium abundances in allotetraploid rapeseed

et al. 2021

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Background Oilseed rape (B. napus L.) has great potential for phytoremediation of cadmium (Cd)-polluted soils due to its large plant biomass production and strong metal accumulation. Soil properties and the presence of other soluble compounds or ions, cause a heterogeneous distribution of Cd. Results The aim of our study was to reveal the differential responses of B. napus to different Cd abundances. Herein, we found that high Cd (50 μM) severely inhibited the growth of B. napus, which was not repressed by low Cd (0.50 μM) under hydroponic culture system. ICP-MS assays showed that the Cd2+ concentrations in both shoots and roots under 50 μM Cd were over 10 times higher than those under 0.50 μM Cd. Under low Cd, the concentrations of only shoot Ca2+/Mn2+ and root Mn2+ were obviously changed (both reduced); under high Cd, the concentrations of most cations assayed were significantly altered in both shoots and roots except root Ca2+ and Mg2+. High-throughput transcriptomic profiling revealed a total of 18,021 and 1408 differentially expressed genes under high Cd and low Cd conditions, respectively. The biological categories related to the biosynthesis of plant cell wall components and response to external stimulus were over-accumulated under low Cd, whereas the terms involving photosynthesis, nitrogen transport and response, and cellular metal ion homeostasis were highly enriched under high Cd. Differential expression of the transporters responsible for Cd uptake (NRAMPs), transport (IRTs and ZIPs), sequestration (HMAs, ABCs, and CAXs), and detoxification (MTPs, PCR, MTs, and PCSs), and some other essential nutrient transporters were investigated, and gene co-expression network analysis revealed the core members of these Cd transporters. Some Cd transporter genes, especially NRAMPs and IRTs, showed opposite responsive patterns between high Cd and low Cd conditions. Conclusions Our findings would enrich our understanding of the interaction between essential nutrients and Cd, and might also provide suitable gene resources and important implications for the genetic improvement of plant Cd accumulation and resistance through molecular engineering of these core genes under varying Cd abundances in soils.

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Section: Discussionmentioning

confidence: 99%

Integrated ionomic and transcriptomic dissection reveals the core transporter genes responsive to varying cadmium abundances in allotetraploid rapeseed

et al. 2021

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“…Cadmium accumulation (dry biomass × Cd concentration) and removal rate (Cd accumulation in plant material/total amount of soil Cd) were calculated for shoots, roots and whole plants [ 9 , 11 ]. The Cd translocation factor (TF Cd ) was calculated as follows [ 21 ]: TF Cd = amount of Cd in shoots/total amount of Cd in plants. …”

Section: Methodsmentioning

confidence: 99%

Co-Cropping Indian Mustard and Silage Maize for Phytoremediation of a Cadmium-Contaminated Acid Paddy Soil Amended with Peat

Wang¹,

Liu

Kariman

et al. 2021

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Co-cropping is an eco-friendly strategy to improve the phytoremediation capacity of plants growing in soils contaminated with heavy metals such as cadmium (Cd). This study was conducted to investigate the effects of co-cropping Indian mustard (Brassicajuncea) and silage maize (Zeamays) and applying peat on the phytoremediation of a Cd-contaminated acid paddy soil via characterizing plant growth and Cd uptake in pot experiments. There were six planting patterns (Control: no plants; MI-2 and MI-4: mono-cropping of Indian mustard at low and high densities, respectively; MS: mono-cropping of silage maize; CIS-2 and CIS-4: co-cropping of Indian mustard at low and high densities with silage maize, respectively) and two application rates of peat (NP: 0; WP: 30 g kg−1). When Indian mustard and silage maize were co-cropped, the shoot biomass of Indian mustard plants per pot was significantly (p < 0.05) lower than that obtained in the mono-cropping systems, with a substantial reduction (55–72%) in the same plant density group. The shoot biomass of silage maize plants in the mono-cropping systems did not differ significantly from that in the co-cropping systems regardless of the density of Indian mustard. The growth-promoting effect of the peat application was more pronounced in Indian mustard than silage maize. Under the low density of Indian mustard, the co-cropping systems significantly (p < 0.05) decreased Cd uptake by silage maize. Additionally, soil amendment with peat significantly (p < 0.05) increased shoot Cd removal rate and Cd translocation factor value in the co-cropping systems. Taken together, the results demonstrated that silage maize should be co-cropped with Indian mustard at an appropriate density in Cd-polluted soils to achieve simultaneous remediation of Cd-contaminated soils (via Indian mustard) and production of crops (here, silage maize). Peat application was shown to promote the removal of Cd from soil and translocation of Cd into shoots and could contribute to enhanced phytoremediation of Cd-contaminated acid paddy soil.

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“…Nitrogen (N) is an essential macronutrient for plant growth and development, and low N stress obviously repressed wheat leaf and root growth [33]. Cadmium (Cd) highly inhibits leaf photosynthesis, carbon and nitrogen metabolism, and wheat growth and yield [34]. In order to provides information for TaHMs in respond to biotic, nutrition and heavy metal stresses, expression patterns of TaHMs were identi ed in above transcriptome researches [32][33][34].…”

Section: The Responses Of Tahms To Abiotic and Biotic Stressesmentioning

confidence: 99%

“…Cadmium (Cd) highly inhibits leaf photosynthesis, carbon and nitrogen metabolism, and wheat growth and yield [34]. In order to provides information for TaHMs in respond to biotic, nutrition and heavy metal stresses, expression patterns of TaHMs were identi ed in above transcriptome researches [32][33][34]. In wheat leaves, TaJMJ7 was increased about 3.4-and 4-fold after S. avenae and S. graminum feeding, respectively; Another TaJMJ gene which was induced by S. avenae infection is TaJMJ11; Transcription levels of TaJMJ40 and TaJMJ42 were higher in S. graminum feeding group than control one; While TaHDA17, TaSDG73, TaHDA20, TaSDG81, TaHDA22 and TaSDG89 were distinctly controlled by S. graminum feeding (Table 1).…”

Section: The Responses Of Tahms To Abiotic and Biotic Stressesmentioning

confidence: 99%

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Genome-wide Identification of Gramineae Histone Modification Genes and their Potential Roles in Regulating Wheat and Maize Growth and Stress Responses

Zheng

Shen

et al. 2020

Preprint

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Background: In pants, histone modification (HM) participates in various developmental and defenses processes. Gramineae plants were important crop species worldwide. However, little information on them is in gramineae species. Results: In six gramineaes, 245 TaHMs, 72 HvHMs, 84 SbHMs, 93 SvHMs, 90 SiHMs and 90 ZmHMs were respectively identified. Their detailed information, including chromosome locations, conserved domains, phylogenetic trees, synteny, promoter elements and gene structures, were identified. Among these HMs, most of motifs were conservative, while unique ones were also identified. Gene and genome duplications may result in the evolution and expansion of HMs in wheat. The number of gene pairs between rice and each gramineae was much greater than that between Arabidopsis and each gramineae, which indicated dicotyledons sharing common ancestors. Moreover, all identified HMs gene pairs may undergo purifying selection according to their Ka/Ks values. Expression profiles of TaHMs in developing wheat grain, responding to brassinosteroid, brassinazole as well as activated charcoal were investigated in published transcriptome data, and transcription models of ZmHMs in maize development seeds and after gibberellin treatment were also identified. In addition, heat, drought, salt, insect feeding, nitrogen and cadmium stresses influenced many TaHMs, and drought altered several ZmHMs expression. These findings indicated their important functions in plant growth and stress adaptions. Conclusion: In conclusion, a comprehensive analysis of six gramineae HM gene families was completed; TaHMs were likely to participate in grain development, brassinosteroid- as well as brassinazole-mediated root growth, activated charcoal-mediated root and leaf growth, and biotic and abiotic adaptions; ZmHMs take part in seed development, gibberellin-mediated leaf growth, and drought adaption.

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Boron inhibits cadmium uptake in wheat (Triticum aestivum) by regulating gene expression

Cited by 33 publications

References 58 publications

Integrated ionomic and transcriptomic dissection reveals the core transporter genes responsive to varying cadmium abundances in allotetraploid rapeseed

Integrated ionomic and transcriptomic dissection reveals the core transporter genes responsive to varying cadmium abundances in allotetraploid rapeseed

Co-Cropping Indian Mustard and Silage Maize for Phytoremediation of a Cadmium-Contaminated Acid Paddy Soil Amended with Peat

Genome-wide Identification of Gramineae Histone Modification Genes and their Potential Roles in Regulating Wheat and Maize Growth and Stress Responses

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