Toleration and Accumulation of Cotton to Heavy Metal - Potential Use for Phytoremediation

Li, Changfeng; Zheng, Cangsong; Zhou, Kehai; Han, Wei; Tian, Changjiu; Ye, Sihong; Zhao, Chun-Chao; Zhou, Hao; Yan, Xiaoming; Ma, Xiongfeng

doi:10.1080/15320383.2020.1747979

Cited by 11 publications

(6 citation statements)

References 61 publications

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“…The significant differences in HMs in the roots of different maize varieties may be related to differences in the composition or release rate of root secretions. Wei found that most HMs, including Pb, Cr, Mn, and Zn, were mainly enriched in the plant roots [33,34]. In the present study, obvious discrepancies in the concentrations of Cd, As, Pb, and Cr among the different parts of the 11 maize varieties were observed.…”

Section: Accumulation Of the Hms In Different Maize Partscontrasting

confidence: 45%

Multi-Target Element-Based Screening of Maize Varieties with Low Accumulation of Heavy Metals (HMs) and Metalloids: Uptake, Transport, and Health Risks

et al. 2023

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Mitigating heavy metals (HMs) contamination and ensuring the safe production of crops is of paramount importance for sustainable agriculture development. The purpose of the current field plot study was to select maize varieties with low HMs and metalloids in their edible parts but high accumulation in other parts. The cadmium (Cd), arsenic (As), lead (Pb), and chromium (Cr) contents of 11 maize varieties were measured by atomic absorption spectrometry, and the plant growth and bioconcentration factors (BFs) were examined. Furthermore, the average daily intake (ADDi) of HMs in maize grains was calculated to assess the associated health risks. The results revealed that the growth of variety TZ23 was minimally impacted HMs and metalloids. The grains of all of the tested maize varieties contained Cr, As, and Pb contents in accordance with National Food Safety Standards (NFSSs, GB2762-2017, ≤0.1 mg·kg−1), while the Cd concentration in grains of varieties QJN1, LSCR, and JN20 were 0.084 mg·kg−1, 0.094 mg·kg−1, and 0.077 mg·kg−1, respectively, in accordance with NFSSs. The translocation factor (TF) of As, Pb and Cr in the grains of 11 maize varieties were found to be less than 1. However, the TF of grain Cd in varieties LYN9, JYN9, and QJN3 exceeded 1. For varieties HNY21, TZ23, and LYN9, the TF of Cd, As, Pb, and Cr in the stems/leaves was less than 1. Cluster analysis revealed that the grains of variety HNY21 had the lowest accumulation capacity of all four HMs. Importantly, the variety JN20 exhibited a high accumulation capacity for Pb and a low capacity for As, while both varieties SKN11 and QJN3 had high accumulation capacities for Cd and low capacities for As. Health risk (HR) indices of the different age groups displayed an overall trend of children > elderly > young adult. Among the HMs and metalloids, Cd and Cr pose the greatest health risks of maize intake. Variety QJN3 posed a significant HR due to chronic toxicity. This study provides a scientific basis for multi-element pollution control and screening of maize varieties suitable for cultivation in mining areas and the remediation of HMs-contaminated soils.

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Section: Accumulation Of the Hms In Different Maize Partscontrasting

confidence: 45%

Multi-Target Element-Based Screening of Maize Varieties with Low Accumulation of Heavy Metals (HMs) and Metalloids: Uptake, Transport, and Health Risks

et al. 2023

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“…Hyperaccumulators, such as sedum, solanum, rapeseed, mustard, clover, switchgrass, were used to adsorb or degrade heavy metal pollutants in the soil, which as an ideal method at present being the characteristics of simple, low cost, little damage to farmland, suitable for large-area treatment and not easy to cause secondary pollution ( Yu et al., 2019 ; Nazli et al., 2020 ; Xu et al., 2020 ). However, compared with the super-accumulating bacteria, cotton is an inedible cash crop with a large biomass and a strong ability to absorb and accumulate Cd ( Li et al., 2020 ). It is an ideal crop for remediation of Cd-contaminated soil, with unique ecological and economic advantages.…”

Section: Discussionmentioning

confidence: 99%

Metabolome and transcriptome association analysis revealed key factors involved in melatonin mediated cadmium-stress tolerance in cotton

Yan²,

Li³

et al. 2022

Front. Plant Sci.

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Cadmium (Cd), a non-essential element for plant, is a ubiquitous and highly toxic heavy metal, seriously endangering agricultural production and human health. As a nonedible economic crop, cotton (Gossypium hirsutum L.) has great potential in remediation of Cd contaminated soil, but its underlying mechanism is still unknown. Melatonin (MT), as a plant growth regulator, is involved in alleviating Cd toxicity in some plants, but the molecular mechanisms of MT-mediated Cd detoxification in cotton are largely unknown. This study investigated the possible molecular mechanisms of the MT-mediated Cd detoxification in cotton seedlings by comparative transcriptomic and metabolomic analyses. The results showed that the cotton seedlings were dwarfed and the leaves were wilted and yellow under Cd stress. The application of 50 µmol L−1 MT significantly increased the superoxide dismutase (SOD) activity and malondialdehyde (MDA) content under Cd stress, but 100 µmol L−1 MT significantly decreased SOD activity, while increased ascorbate peroxidase (APX) activity significantly. The addition of 100 μmol L−1 MT significantly increased Cd concentration in the shoots and roots under Cd stress. RNA-seq analysis showed that 5573, 7105, 7253, 25, 198, 9 up-regulated and 6644, 7192, 7404, 9, 59, 0 down-regulated differentially expressed genes (DEGs) were identified in the comparisons of CK vs T1, CK vs T2, CK vs T3, T1 vs T2, T1 vs T3 and T2 vs T3, respectively. It was revealed that MT promoted the expression of certain related genes under Cd stress, and the effect of 100 µmol L−1 MT was better. Moreover, UPLC-MS/MS widely targeted metabolites analyses showed that 195, 150, 150, 12, 24, 59 up-regulated and 16, 11, 23, 38, 127, 66 down-regulated differentially accumulated metabolites (DAMs) were changed in the CK vs T1, CK vs T2, CK vs T3, T1 vs T2, T1 vs T3 and T2 vs T3, respectively. It was revealed that MT induced the synthesis of alkaloids and flavonoids, and inhibited or reduced the synthesis of lipids, amino acids and their derivatives. The comprehensive analyses of transcriptomic and metabolic data showed that 33 DEGs and 4 DAMs, 46 DEGs and 16 DAMs, and 1 DEGs and 1 DAMs were dominantly involved in the pathways of valine, leucine and isoleucine degradation, ABC transporter, alpha-linolenic acid metabolism, respectively. It was revealed that there were three major mechanisms involved in MT-mediated Cd detoxification in cotton, including the enhancement of antioxidant capacity regulated by APX, flavonoids and alkaloids; accumulation of secondary metabolites related to Cd chelation, such as amino acids and derivatives; and regulation of cadmium ion transportation, such as ABC transporter activation. In conclusion, this study provides new insights into the MT-mediated Cd stress response.

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“…Arsenic (As), a hazardous metalloid element in the earth’s crust, poses a significant environmental threat worldwide due to its widespread contamination in groundwater and soil. This contamination has garnered increasing attention regarding the global security of agricultural products ( Li et al, 2018a , 2020 ). As also enriched in orpiment, realgar, and other ores in nature ( Sharma et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

“…The establishment of AMF symbiosis involves complex signaling events that often involve the recruitment and modification of gene expression patterns in host plants to fulfill the symbiotic requirements, and this process ultimately leads to changes in the expression of mycorrhiza-regulated genes in the host plants ( Song et al, 2014 ). RNA sequencing (RNA-Seq) is an effective method for investigating the transcriptome-wide response of plants and elucidating the underlying molecular mechanisms ( Li et al, 2020 ). This method generates vast annotation information on differentially expressed genes, providing opportunities for function analysis of genes regulated by specific factors ( Ma et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

“…Cotton ( Gossypium spp.) is a fiber crop with large biomass, a developed root system, and high economic value, and it also shows more excellent tolerance ( Bharwana et al, 2014 ; Li et al, 2020 ). Xinjiang Autonomous Region is the main cotton producing region in China; in Kuitun Prefecture of Xinjiang, there are 134,700 hectares of cotton planting area, and groundwater is the main source of irrigation water.…”

Section: Introductionmentioning

confidence: 99%

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Transcriptome analysis of Gossypium reveals the molecular mechanisms of Ca2+ signaling pathway on arsenic tolerance induced by arbuscular mycorrhizal fungi

Gong,

Bai,

et al. 2024

Front. Microbiol.

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IntroductionArbuscular mycorrhizal fungi (AMF) have been demonstrated their ability to enhance the arsenic (As) tolerance of host plants, and making the utilization of mycorrhizal plants a promising and practical approach for remediating As-contaminated soils. However, comprehensive transcriptome analysis to reveal the molecular mechanism of As tolerance in the symbiotic process between AMF and host plants is still limited.MethodsIn this study, transcriptomic analysis of Gossypium seedlings was conducted with four treatments: non-inoculated Gossypium under non-As stress (CK0), non-inoculated Gossypium under As stress (CK100), F. mosseae-inoculated Gossypium under non-As stress (FM0), and F. mosseae-inoculated Gossypium under As stress (FM100).ResultsOur results showed that inoculation with F. mosseae led to a reduction in net fluxes of Ca2+, while increasing Ca2+ contents in the roots and leaves of Gossypium under the same As level in soil. Notably, 199 and 3129 differentially expressed genes (DEGs) were specially regulated by F. mosseae inoculation under As stress and non-As stress, respectively. Through Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) annotation and enrichment analyses, we found that under As stress, F. mosseae inoculation up-regulated a significant number of genes related to the Ca2+ signaling pathway genes, involved in cellular process, membrane part, and signal transduction. This suggests a potential role in mitigating As tolerance in Gossypium seedlings. Furthermore, our analysis identified specific DEGs in transcription factor families, including ERF, MYB, NAC, and WRKY, that were upregulated by F. mosseae inoculation. Conversely, MYB and HB-other were down-regulated. The ERF and MYB families exhibited the highest number of up- and down-regulated DEGs, respectively, which were speculated to play an important role in alleviating the As toxicity of Gossypium.DiscussionOur findings provided valuable insights into the molecular theoretical basis of the Ca2+ signaling pathway in improving As tolerance of mycorrhizal plants in the future.

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Toleration and Accumulation of Cotton to Heavy Metal - Potential Use for Phytoremediation

Cited by 11 publications

References 61 publications

Multi-Target Element-Based Screening of Maize Varieties with Low Accumulation of Heavy Metals (HMs) and Metalloids: Uptake, Transport, and Health Risks

Multi-Target Element-Based Screening of Maize Varieties with Low Accumulation of Heavy Metals (HMs) and Metalloids: Uptake, Transport, and Health Risks

Metabolome and transcriptome association analysis revealed key factors involved in melatonin mediated cadmium-stress tolerance in cotton

Transcriptome analysis of Gossypium reveals the molecular mechanisms of Ca2+ signaling pathway on arsenic tolerance induced by arbuscular mycorrhizal fungi

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