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Squarcina A, Franke A, Senft L, Onderka C, Langer J, Vignane T, Filipovic MR, Grill P, Michalke B, Ivanović-Burmazović I. Zinc complexes of chloroquine and hydroxychloroquine versus the mixtures of their components: Structures, solution equilibria/speciation and cellular zinc uptake. J Inorg Biochem 2024; 252:112478. [PMID: 38218140 DOI: 10.1016/j.jinorgbio.2024.112478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/22/2023] [Accepted: 01/02/2024] [Indexed: 01/15/2024]
Abstract
The zinc complexes of chloroquine (CQ; [Zn(CQH+)Cl3]) and hydroxychloroquine (HO-CQ; [Zn(HO-CQH+)Cl3]) were synthesized and characterized by X-Ray structure analysis, FT-IR, NMR, UV-Vis spectroscopy, and cryo-spray mass spectrometry in solid state as well as in aqueous and organic solvent solutions, respectively. In acetonitrile, up to two Zn2+ ions bind to CQ and HO-CQ through the tertiary amine and aromatic nitrogen atoms (KN-aminCQ = (3.8 ± 0.5) x 104 M-1 and KN-aromCQ = (9.0 ± 0.7) x 103 M-1 for CQ, and KN-aminHO-CQ = (3.3 ± 0.4) x 104 M-1 and KN-aromHO-CQ = (1.6 ± 0.2) x 103 M-1 for HO-CQ). In MOPS buffer (pH 7.4) the coordination proceeds through the partially deprotonated aromatic nitrogen, with the corresponding equilibrium constants of KN-arom(aq)CQ = (3.9 ± 1.9) x 103 M-1and KN-arom(aq)HO-CQ = (0.7 + 0.4) x 103 M-1 for CQ and HO-CQ, respectively. An apparent partition coefficient of 0.22 was found for [Zn(CQH+)Cl3]. Mouse embryonic fibroblast (MEF) cells were treated with pre-synthesized [Zn((HO-)CQH+)Cl3] complexes and corresponding ZnCl2/(HO-)CQ mixtures and zinc uptake was determined by application of the fluorescence probe and ICP-OES measurements. Administration of pre-synthesized complexes led to higher total zinc levels than those obtained upon administration of the related zinc/(hydroxy)chloroquine mixtures. The differences in the zinc uptake between these two types of formulations were discussed in terms of different speciation and character of the complexes. The obtained results suggest that intact zinc complexes may exhibit biological effects distinct from that of the related zinc/ligand mixtures.
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Affiliation(s)
- Andrea Squarcina
- Department of Chemistry, Ludwig-Maximilians Universität (LMU) München, München 81377, Germany
| | - Alicja Franke
- Department of Chemistry, Ludwig-Maximilians Universität (LMU) München, München 81377, Germany
| | - Laura Senft
- Department of Chemistry, Ludwig-Maximilians Universität (LMU) München, München 81377, Germany
| | - Constantin Onderka
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Jens Langer
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Thibaut Vignane
- Leibniz Institute for Analytical Sciences, ISAS e.V., 44227 Dortmund, Germany
| | - Milos R Filipovic
- Leibniz Institute for Analytical Sciences, ISAS e.V., 44227 Dortmund, Germany
| | - Peter Grill
- Research Unit Analytical BioGeoChemistry, Helmholtz Center Munich, 85764 Neuherberg, Germany
| | - Bernhard Michalke
- Research Unit Analytical BioGeoChemistry, Helmholtz Center Munich, 85764 Neuherberg, Germany
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Yang JS, Ahmed RI, Liu H, Sheng S, Xiao W, Hu R, Dai Y. Differential absorption of cadmium and zinc by tobacco plants: Role of apoplastic pathway. Biochem Biophys Rep 2024; 37:101641. [PMID: 38288283 PMCID: PMC10823060 DOI: 10.1016/j.bbrep.2024.101641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/19/2023] [Accepted: 01/06/2024] [Indexed: 01/31/2024] Open
Abstract
Cadmium (Cd) contamination presents a significant challenge in global agriculture. This study explores the efficacy of chemical induction, specifically using sodium chloride (NaCl), to limit Cd uptake in tobacco (Nicotiana tabacum) and assesses its impact on essential divalent metal ions (DMIs). We conducted a comprehensive analysis encompassing ion absorption, root histology, and biochemistry to understand the influence of this method. Our results revealed that NaCl induction led to a notable 30 % decrease in Cd absorption, while maintaining minimal impact on zinc (Zn) uptake. Intriguingly, the absence of essential DMIs, such as calcium (Ca), magnesium (Mg), and Zn, was found to diminish the plant's capacity to absorb Cd. Furthermore, moderate NaCl induction resulted in an increased diameter of the root stele and enhanced lignin content, indicating a restriction of Cd absorption through the apoplastic pathway. Conversely, a compensatory absorption mechanism via the symplastic pathway appeared to be activated in the absence of essential elements. These findings highlight the potential of chemical induction as a strategy to mitigate agricultural Cd risks, offering insights into the complex interplay between plant ion transport pathways and metal uptake regulation.
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Affiliation(s)
- Jia-Shuo Yang
- China Tobacco Central South Agricultural Experimental Station, Furong Road No. 628, Changsha, 410004, China
| | - Rana Imtiaz Ahmed
- Chinese Academy of Agricultural Sciences, Institute of Tobacco Research, Keyuanjingsi Road No. 11, Qingdao, 266101, China
| | - Haiwei Liu
- Chinese Academy of Agricultural Sciences, Institute of Tobacco Research, Keyuanjingsi Road No. 11, Qingdao, 266101, China
| | - Song Sheng
- Central South University of Forestry and Technology, Shaoshan Road No. 498, Changsha, 410004, China
| | - Wenfeng Xiao
- China Tobacco Central South Agricultural Experimental Station, Furong Road No. 628, Changsha, 410004, China
| | - Risheng Hu
- China Tobacco Central South Agricultural Experimental Station, Furong Road No. 628, Changsha, 410004, China
| | - Yanjiao Dai
- Hunan Academy of Agricultural Science, Yuanda Road No. 892, Changsha, 410125, China
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Gupta S, Pandey S, Kotra V, Kumar A. Assessing the role of ACC deaminase-producing bacteria in alleviating salinity stress and enhancing zinc uptake in plants by altering the root architecture of French bean (Phaseolus vulgaris) plants. Planta 2023; 258:3. [PMID: 37212904 DOI: 10.1007/s00425-023-04159-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 05/14/2023] [Indexed: 05/23/2023]
Abstract
MAIN CONCLUSION The consortium inoculation with strains R1 and R4 modified the root system to boost seedling growth, increase the zinc content of French bean pods, and reduce salinity stress. The present study demonstrated the effect of two 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase-producing plant growth-promoting rhizobacteria (Pantoea agglomerans R1 and Pseudomonas fragi R4) alone and consortia on the root system development, French bean growth, and zinc content as well as salinity stress tolerance. Both the strains were characterized for ACC utilization activity (426.23 and 380.54 nmol α-ketobutyrate mg protein-1 h-1), indole acetic acid (IAA) production, phosphate solubilization, ammonia, hydrogen cyanide (HCN), and siderophore production. The strains exhibited zinc solubilization in both plate and broth assays with zinc oxide and zinc carbonate as zinc sources as validated by atomic absorption spectroscopy (AAS). Single or combined inoculations with the selected strains significantly modulated the architectural and morphological traits of the root system of French bean plants. Furthermore, the application of R1and R4 consortia has enhanced zinc content in roots (60.83 mg kg-1), shoots (15.41 mg kg-1), and pods (30.04 mg kg-1) of French bean plants grown in ZnCO3 amended soil. In another set of pot experiments, the consortium bacterization has significantly enhanced length as well as fresh and dry biomass of roots and shoots of the French bean plant under saline stress conditions. Additionally, inoculation with ACC-degrading rhizobacterial strains has increased chlorophyll and carotenoid contents, osmoprotectant content, and antioxidative enzyme (catalase and peroxidase) activity in comparison to their counterparts exposed to salt treatments only. Current findings suggested ACC deaminase-producing rhizobacterial strains hold the potential to improve root architecture which in turn promotes plant growth under salt-stressed conditions as well as enhances micronutrient concentration in host plants.
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Affiliation(s)
- Shikha Gupta
- Amity Institute of Organic Agriculture, Amity University Uttar Pradesh, Noida, Uttar Pradesh, 201313, India
| | - Sangeeta Pandey
- Amity Institute of Organic Agriculture, Amity University Uttar Pradesh, Noida, Uttar Pradesh, 201313, India.
| | - Vashista Kotra
- Amity Institute of Organic Agriculture, Amity University Uttar Pradesh, Noida, Uttar Pradesh, 201313, India
| | - Atul Kumar
- Division of Seed Science and Technology, ICAR, Indian Agricultural Research Institute, Pusa, New Delhi, 110012, India
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Beig B, Niazi MBK, Jahan Z, Zia M, Shah GA, Iqbal Z, Douna I. Facile coating of micronutrient zinc for slow release urea and its agronomic effects on field grown wheat (Triticum aestivum L.). Sci Total Environ 2022; 838:155965. [PMID: 35588805 DOI: 10.1016/j.scitotenv.2022.155965] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 05/09/2022] [Accepted: 05/11/2022] [Indexed: 05/27/2023]
Abstract
Slow release urea has been widely tested in recent past as an effective method to enhance the crop productivity with fewer environmental concerns. However, very few research studies have been performed using micronutrients as a source of slow release of urea nitrogen. A laboratory and field study were carried out to check the agronomic effects of zinc oxide nanoparticles and its bulk salt coatings on urea prills on wheat (Triticum aestivum L.). Different concentrations of zinc oxide nanoparticles (0.25, 0.5 and 4% elemental zinc) were coated on urea prills to slow down the release rate. Bulk zinc oxide salt (ZnO) with similar concentrations was also used in parallel to make a comparison between nano and bulk salt. The SEM of zinc oxide nanoparticles clearly depicted zinc oxide nanoparticles size within a range of 50-90 nm. The XRD and FTIR spectrums also showed its characteristics peak at designated positions. Field study revealed than 0.5% zinc oxide nanoparticles coated urea boosted the crop growth and yield in comparison to the bulk zinc oxide coated urea having similar zinc concentrations, i.e., 0.25%, 0.5% and 4% elemental zinc. The plant parameters like plant height, root length, root volume, grain yield and dry matter weight were significantly increased due to application of zinc oxide nanoparticles.
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Affiliation(s)
- Bilal Beig
- Department of Chemical Engineering, School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, Pakistan
| | - Muhammad Bilal Khan Niazi
- Department of Chemical Engineering, School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, Pakistan.
| | - Zaib Jahan
- Department of Chemical Engineering, School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, Pakistan
| | - Munir Zia
- Research and Development Department, Fauji Fertilizer Company Limited, Head Office 156-The Mall, Rawalpindi, Pakistan
| | - Ghulam Abbas Shah
- Department of Agronomy, PMAS-Arid Agriculture University, Murree Road, Rawalpindi, Punjab 10370, Pakistan
| | - Zahid Iqbal
- Institute of Soil and Environmental Sciences, PMAS Arid Agriculture University, Rawalpindi, 46300, Pakisatan
| | - Inamullah Douna
- Department of Chemical Engineering, School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, Pakistan
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Li G, Wang Y, Liu H, Qin S, Sui F, Fu H, Duan R, Li C, Zhao P. A comparison study of physiological response and TaZIPs expression in seedlings of two wheat (Triticum aestivum L.) cultivars with contrasting grain zinc accumulation. Plant Sci 2022; 318:111237. [PMID: 35351309 DOI: 10.1016/j.plantsci.2022.111237] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 02/02/2022] [Accepted: 02/20/2022] [Indexed: 06/14/2023]
Abstract
Screening and breeding of high-Zn-accumulating wheat cultivars have received increasing attention in recent years. However, the exact mechanism of Zn uptake and accumulation in wheat is not fully understood. Here, we investigated the physiological responses and TaZIPs gene expression in a low (Zhengmai0856, ZM0856) and a high (Aikang58, AK58) grain-Zn-accumulating wheat cultivars under hydroponic conditions with different levels of Zn supply. Results showed that AK58 was a Zn sensitive cultivar with better growth advantage, while ZM0856 was a Zn tolerant cultivar with higher capacity of Zn uptake. In addition, gene expression analysis showed that, the expression levels of the TaZIP3, TaZIP5, and TaZIP7 in roots were increased in both cultivars under Zn deficiency. In shoots, TaZIP3 and TaZIP6 transcript accumulation was lower in AK58 than ZM0856, whereas TaZIP7 showed the opposite effect. Moreover, multivariate statistical analysis (Pearson's correlation and PCA) showed that the mechanisms involved in Zn uptake and translocation was closely related to subcellular biosynthesis and ZIP gene expression regulation, whereas adequate Zn supply improved the Zn uptake and root-to-shoot translocation. These novel findings might be helpful for the molecular-assisted selecting and breeding of Zn-rich wheat cultivars.
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Affiliation(s)
- Guangxin Li
- College of Resources and Environmental, Henan Agricultural University, Zhengzhou 450002, China; Key Laboratory of Soil Pollution Control and Remediation of Henan Province, Zhengzhou 450002, China
| | - Yun Wang
- College of Resources and Environmental, Henan Agricultural University, Zhengzhou 450002, China; Key Laboratory of Soil Pollution Control and Remediation of Henan Province, Zhengzhou 450002, China
| | - Hongen Liu
- College of Resources and Environmental, Henan Agricultural University, Zhengzhou 450002, China; Key Laboratory of Soil Pollution Control and Remediation of Henan Province, Zhengzhou 450002, China
| | - Shiyu Qin
- College of Resources and Environmental, Henan Agricultural University, Zhengzhou 450002, China; Key Laboratory of Soil Pollution Control and Remediation of Henan Province, Zhengzhou 450002, China
| | - Fuqing Sui
- College of Resources and Environmental, Henan Agricultural University, Zhengzhou 450002, China; Key Laboratory of Soil Pollution Control and Remediation of Henan Province, Zhengzhou 450002, China
| | - Haichao Fu
- College of Resources and Environmental, Henan Agricultural University, Zhengzhou 450002, China; Key Laboratory of Soil Pollution Control and Remediation of Henan Province, Zhengzhou 450002, China
| | - Ran Duan
- College of Resources and Environmental, Henan Agricultural University, Zhengzhou 450002, China; Key Laboratory of Soil Pollution Control and Remediation of Henan Province, Zhengzhou 450002, China
| | - Chang Li
- College of Resources and Environmental, Henan Agricultural University, Zhengzhou 450002, China; Key Laboratory of Soil Pollution Control and Remediation of Henan Province, Zhengzhou 450002, China.
| | - Peng Zhao
- College of Resources and Environmental, Henan Agricultural University, Zhengzhou 450002, China; Key Laboratory of Soil Pollution Control and Remediation of Henan Province, Zhengzhou 450002, China.
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Montanha GS, Rodrigues ES, Romeu SLZ, de Almeida E, Reis AR, Lavres J, Pereira de Carvalho HW. Zinc uptake from ZnSO 4 (aq) and Zn-EDTA (aq) and its root-to-shoot transport in soybean plants (Glycine max) probed by time-resolved in vivo X-ray spectroscopy. Plant Sci 2020; 292:110370. [PMID: 32005376 DOI: 10.1016/j.plantsci.2019.110370] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 12/02/2019] [Accepted: 12/04/2019] [Indexed: 06/10/2023]
Abstract
This study investigated the dynamic of zinc (Zn) uptake and the root-to-shoot Zn-transport when supplied as ZnSO4 (aq) or Zn-EDTA (aq) in soybean seedlings using in vivo X-ray fluorescence (XRF) and X-ray absorption spectroscopy (XANES). The time-resolved X-ray fluorescence showed that plants absorbed ca. 10-fold more Zn from ZnSO4 (aq) than from Zn-EDTA (aq). However, the uptake velocity did not influence the amount of Zn in the stem. It let furthermore appear that the plants were able to reduce the absorption of Zn from Zn-EDTA (aq) earlier than ZnSO4 (aq). Thus, the entrance of Zn2+ into the roots is not necessarily accompanied by SO42-(aq). Regardless the source, the Zn distribution and its transport in the stem were spatially correlated to the bundles and cortex nearby the epidermal cells. Its chemical speciation showed that Zn is neither transported as ZnSO4(aq) nor as Zn-EDTA(aq), indicating that these compounds are retained in the roots or biotransformed on in the root-solution interface. Zn2+ was long-distance transported complexed by organic molecules such as histidine, malate, and citrate, and the proportion of ligands was affected by the concentration of Zn2+ in the stem rather than by the type of Zn source.
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Affiliation(s)
- Gabriel S Montanha
- University of São Paulo (USP), Center of Nuclear Energy in Agriculture (CENA), Avenida Centenário 303, 13416-000, Piracicaba, São Paulo, Brazil.
| | - Eduardo S Rodrigues
- University of São Paulo (USP), Center of Nuclear Energy in Agriculture (CENA), Avenida Centenário 303, 13416-000, Piracicaba, São Paulo, Brazil.
| | - Sara L Z Romeu
- University of São Paulo (USP), Center of Nuclear Energy in Agriculture (CENA), Avenida Centenário 303, 13416-000, Piracicaba, São Paulo, Brazil.
| | - Eduardo de Almeida
- University of São Paulo (USP), Center of Nuclear Energy in Agriculture (CENA), Avenida Centenário 303, 13416-000, Piracicaba, São Paulo, Brazil.
| | - André R Reis
- São Paulo State University (UNESP), Rua Domingos da Costa Lopes 780, 17602-496, Tupã, São Paulo, Brazil.
| | - José Lavres
- University of São Paulo (USP), Center of Nuclear Energy in Agriculture (CENA), Avenida Centenário 303, 13416-000, Piracicaba, São Paulo, Brazil.
| | - Hudson W Pereira de Carvalho
- University of São Paulo (USP), Center of Nuclear Energy in Agriculture (CENA), Avenida Centenário 303, 13416-000, Piracicaba, São Paulo, Brazil.
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Abstract
SLC39A8 is an evolutionarily highly conserved gene that encodes the ZIP8 metal cation transporter in all vertebrates. SLC39A8 is ubiquitously expressed, including pluripotent embryonic stem cells; SLC39A8 expression occurs in every cell type examined. Uptake of ZIP8-mediated Mn2+, Zn2+, Fe2+, Se4+, and Co2+ represents endogenous functions-moving these cations into the cell. By way of mouse genetic differences, the phenotype of "subcutaneous cadmium-induced testicular necrosis" was assigned to the Cdm locus in the 1970s. This led to identification of the mouse Slc39a8 gene, its most closely related Slc39a14 gene, and creation of Slc39a8-overexpressing, Slc39a8(neo/neo) knockdown, and cell type-specific conditional knockout mouse lines; the Slc39a8(-/-) global knockout mouse is early-embryolethal. Slc39a8(neo/neo) hypomorphs die between gestational day 16.5 and postnatal day 1-exhibiting severe anemia, dysregulated hematopoiesis, hypoplastic spleen, dysorganogenesis, stunted growth, and hypomorphic limbs. Not surprisingly, genome-wide association studies subsequently revealed human SLC39A8-deficiency variants exhibiting striking pleiotropy-defects correlated with clinical disorders in virtually every organ, tissue, and cell-type: numerous developmental and congenital disorders, the immune system, cardiovascular system, kidney, lung, liver, coagulation system, central nervous system, musculoskeletal system, eye, and gastrointestinal tract. Traits with which SLC39A8-deficiency variants are currently associated include Mn2+-deficient hypoglycosylation; numerous birth defects; Leigh syndrome-like mitochondrial redox deficiency; decreased serum high-density lipoprotein-cholesterol levels; increased body mass index; greater risk of coronary artery disease, hypotension, cardiovascular death, allergy, ischemic stroke, schizophrenia, Parkinson disease, inflammatory bowel disease, Crohn disease, myopia, and adolescent idiopathic scoliosis; systemic lupus erythematosus with primary Sjögren syndrome; decreased height; and inadvertent participation in the inflammatory progression of osteoarthritis.
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Affiliation(s)
- Daniel W Nebert
- Department of Environmental Health and Center for Environmental Genetics, University of Cincinnati Medical Center, Cincinnati, OH, 45267-0056, USA.
- Division of Human Genetics, Department of Pediatrics & Molecular Developmental Biology, Cincinnati Children's Hospital, Cincinnati, OH, 45229-2899, USA.
| | - Zijuan Liu
- Department of Biological Sciences, Oakland University, Rochester, MI, 48309, USA
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Zhang X, Dai P, Gao Y, Gong X, Cui H, Jin Y, Zhang Y. Transcriptome sequencing and analysis of zinc-uptake-related genes in Trichophyton mentagrophytes. BMC Genomics 2017; 18:888. [PMID: 29157209 PMCID: PMC5697147 DOI: 10.1186/s12864-017-4284-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 11/07/2017] [Indexed: 12/19/2022] Open
Abstract
Background Trichophyton mentagrophytes is an important zoonotic dermatophytic (ringworm) pathogen; causing severe skin infection in humans and other animals worldwide. Fortunately, commonly used fungal skin disease prevention and treatment measures are relatively simple. However, T. mentagrophytes is primarily studied at the epidemiology and drug efficacy research levels, yet current study has been unable to meet the needs of clinical medicine. Zinc is a crucial trace element for the growth and reproduction of fungi and other microorganisms. The metal ions coordinate within a variety of proteins to form zinc finger proteins, which perform many vital biological functions. Zinc transport regulatory networks have not been resolved in T. mentagrophytes. The T. mentagrophytes transcriptome will allow us to discover new genes, particularly those genes involved in zinc uptake. Result We found T. mentagrophytes growth to be restricted by zinc deficiency; natural T. mentagrophytes growth requires zinc ions. T. Mentagrophytes must acquire zinc ions for growth and development. The transcriptome of T. mentagrophytes was sequenced by using Illumina HiSeq™ 2000 technology and the de novo assembly of the transcriptome was performed by using the Trinity method, and functional annotation was analyzed. We got 10,751 unigenes. The growth of T. mentagrophytes is severely inhibited and there were many genes showing significant up regulation and down regulation respectively in T. mentagrophytes when zinc deficiency. Zinc deficiency can affect the expression of multiple genes of T. mentagrophytes. The effect of the zinc deficiency could be recovered in the normal medium. And we finally found the zinc-responsive activating factor (ZafA) and speculated that 4 unigenes are zinc transporters. We knocked ZafA gene by ATMT transformation in T. mentagrophytes, the result showed that ZafA gene is very important for the growth and the generation of conidia in T. mentagrophytes. The expression of 4 zinc transporter genes is potentially regulated by the zinc-responsive activating factor. The data of this study is also sufficient to be used as a support to study T. mentagrophytes. Conclusion We reported the first large transcriptome study carried out in T. mentagrophytes where we have compared physiological and transcriptional responses to zinc deficiency, and analyzed the expression of genes involved in zinc uptake. The study also produced high-resolution digital profiles of global genes expression relating to T. mentagrophytes growth. Electronic supplementary material The online version of this article (10.1186/s12864-017-4284-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xinke Zhang
- The College of Veterinary Medicine of the Northwest Agriculture and Forestry University, No. 3 Taicheng Road, Yangling, Shaanxi, People's Republic of China
| | - Pengxiu Dai
- The College of Veterinary Medicine of the Northwest Agriculture and Forestry University, No. 3 Taicheng Road, Yangling, Shaanxi, People's Republic of China
| | - Yongping Gao
- The College of Veterinary Medicine of the Northwest Agriculture and Forestry University, No. 3 Taicheng Road, Yangling, Shaanxi, People's Republic of China
| | - Xiaowen Gong
- The College of Veterinary Medicine of the Northwest Agriculture and Forestry University, No. 3 Taicheng Road, Yangling, Shaanxi, People's Republic of China
| | - Hao Cui
- The College of Veterinary Medicine of the Northwest Agriculture and Forestry University, No. 3 Taicheng Road, Yangling, Shaanxi, People's Republic of China
| | - Yipeng Jin
- Clinical Department, College of Veterinary Medicine, China Agricultural University, Beijing, People's Republic of China
| | - Yihua Zhang
- The College of Veterinary Medicine of the Northwest Agriculture and Forestry University, No. 3 Taicheng Road, Yangling, Shaanxi, People's Republic of China.
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Benáková M, Ahmadi H, Dučaiová Z, Tylová E, Clemens S, Tůma J. Effects of Cd and Zn on physiological and anatomical properties of hydroponically grown Brassica napus plants. Environ Sci Pollut Res Int 2017; 24:20705-20716. [PMID: 28714046 DOI: 10.1007/s11356-017-9697-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 07/04/2017] [Indexed: 06/07/2023]
Abstract
Clarifying the connection between metal exposure and anatomical changes represents an important challenge for a better understanding of plant phytoextraction potential. A hydroponic screening experiment was carried out to evaluate the effects of combined interactions of Cd and Zn on mineral uptake (Mg, K, Ca, Na) and on the physiological and anatomical characteristics of Brassica napus L cv. Cadeli, Viking, and Navajo. Plants were exposed to 5 μM Cd (CdCl2), 10 μM Zn (ZnSO4), or both Cd + Zn, for 14 days. Cadmium exposure led to a significant reduction in root growth, shoot biomass, and chlorophyll content. After Cd-only and Cd + Zn treatment, primary root tips became thicker and pericycle cells were enlarged compared to the control and Zn-only treatment. No differences between metals were observed under UV excitation, where all treatments showed more intensive autofluorescence connected with lignin/suberin accumulation compared to control conditions. The highest concentrations of Cd and Zn were found in the roots of all tested plants, and translocation factors did not exceed the threshold of 1.0. The root mineral composition was not affected by any treatment. In the shoots, the Mg concentration slightly increased after Cd-only and Cd + Zn treatments, whereas Zn-only treatment caused a sharp decrease in Ca content. Slight increases in K were seen after the addition of Zn. Significantly higher concentrations of Na were induced by Cd- or Zn-only treatment.
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Affiliation(s)
- Martina Benáková
- Department of Biology, Faculty of Science, University of Hradec Králové, Rokitanského 62, 500 03, Hradec Králové, Czech Republic.
| | - Hassan Ahmadi
- Department of Plant Physiology, University of Bayreuth, Bayreuth, Germany
| | - Zuzana Dučaiová
- Department of Biology, Faculty of Science, University of Hradec Králové, Rokitanského 62, 500 03, Hradec Králové, Czech Republic
| | - Edita Tylová
- Department of Experimental Plant Biology, Charles University, Prague, Czech Republic
| | - Stephan Clemens
- Department of Plant Physiology, University of Bayreuth, Bayreuth, Germany
| | - Jiří Tůma
- Department of Biology, Faculty of Science, University of Hradec Králové, Rokitanského 62, 500 03, Hradec Králové, Czech Republic
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Koike A, Sou J, Ohishi A, Nishida K, Nagasawa K. Inhibitory effect of divalent metal cations on zinc uptake via mouse Zrt-/Irt-like protein 8 (ZIP8). Life Sci 2016; 173:80-85. [PMID: 27956349 DOI: 10.1016/j.lfs.2016.12.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 12/08/2016] [Accepted: 12/09/2016] [Indexed: 11/20/2022]
Abstract
AIMS There is controversy regarding the substrate specificity of ZIP8, a ZIP isoform, involved in regulation of extra- and intracellular zinc levels. Here, we investigated the inhibitory effects of divalent metal cations on zinc uptake via mouse ZIP8 (mZIP8). MAIN METHODS mZIP8 cDNA was transfected into HEK293T cells by a lipofection method, and its functional expression was evaluated by immunocytochemistry, Western blotting and 65Zn (65ZnCl2) uptake measurement. KEY FINDINGS Transfection of mZIP8 cDNA into HEK293T cells induced expression of mZIP8 in the cells, and increased zinc uptake. mZIP8-mediated zinc uptake depended on extracellular bicarbonate, and the Michaelis constant for the uptake was estimated to be 8.48±2.46μM. In the inhibition study, iron and cadmium competitively, and cobalt, nickel and copper non-competitively inhibited the mZIP8-mediated zinc uptake, the inhibition constants being calculated to be 3.37, 55.5, 80.6, 198 and 48.3μM, respectively. In contrast, magnesium and manganese at concentrations of up to 1500 and 200μM, respectively, had no inhibitory effect on the zinc uptake via mZIP8. SIGNIFICANCE In this study, we reveal that the inhibition profiles of divalent metal cations as to zinc uptake via mZIP8 apparently differ from those for mZIP1, especially in the affinity and inhibition manner of nickel. These findings should contribute to identification of ZIP isoforms involved in total cellular zinc transport.
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Affiliation(s)
- Akihiro Koike
- Department of Environmental Biochemistry, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Jyakusho Sou
- Department of Environmental Biochemistry, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Akihiro Ohishi
- Department of Environmental Biochemistry, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Kentaro Nishida
- Department of Environmental Biochemistry, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
| | - Kazuki Nagasawa
- Department of Environmental Biochemistry, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan.
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Brun NR, Lenz M, Wehrli B, Fent K. Comparative effects of zinc oxide nanoparticles and dissolved zinc on zebrafish embryos and eleuthero-embryos: importance of zinc ions. Sci Total Environ 2014; 476-477:657-666. [PMID: 24508854 DOI: 10.1016/j.scitotenv.2014.01.053] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 01/16/2014] [Accepted: 01/16/2014] [Indexed: 06/03/2023]
Abstract
The increasing use of zinc oxide nanoparticles (nZnO) and their associated environmental occurrence make it necessary to assess their potential effects on aquatic organisms. Upon water contact, nZnO dissolve partially to zinc (Zn(II)). To date it is not yet completely understood, whether effects of nZnO are solely or partly due to dissolved Zn(II). Here we compare potential effects of 0.2, 1 and 5mg/L nZnO and corresponding concentrations of released Zn(II) by water soluble ZnCl2 to two development stages of zebrafish, embryos and eleuthero-embryos, by analysing expressional changes by RT-qPCR. Another objective was to assess uptake and tissue distribution of Zn(II). Laser ablation-ICP-MS analysis demonstrated that uptake and tissue distribution of Zn(II) were identical for nZnO and ZnCl2 in eleuthero-embryos. Zn(II) was found particularly in the retina/pigment layer of eyes and brain. Both nZnO and dissolved Zn(II) derived from ZnCl2 had similar inhibiting effects on hatching, and they induced similar expressional changes of target genes. At 72hours post fertilization (hpf), both nZnO and Zn(II) delayed hatching at all doses, and inhibited hatching at 1 and 5 mg/L at 96 hpf. Both nZnO and Zn(II) lead to induction of metallothionein (mt2) in both embryos and eleuthero-embryos at all concentrations. Transcripts of oxidative stress related genes cat and Cu/Zn sod were also altered. Moreover, we show for the first time that nZnO exposure results in transcriptional changes of pro-inflammatory cytokines IL-1β and TNFα. Overall, transcriptional alterations were higher in embryos than eleuthero-embryos. The similarities of the effects lead to the conclusion that effects of nZnO are mainly related to the release of Zn(II).
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Affiliation(s)
- Nadja Rebecca Brun
- University of Applied Sciences and Arts Northwestern Switzerland, School of Life Sciences, Institute for Ecopreneurship, Gründenstrasse 40, CH-4132 Muttenz, Switzerland; ETH Zurich, Institute of Biogeochemistry and Pollutant Dynamics, Universitätsstrasse 16, CH-8092 Zürich, Switzerland
| | - Markus Lenz
- University of Applied Sciences and Arts Northwestern Switzerland, School of Life Sciences, Institute for Ecopreneurship, Gründenstrasse 40, CH-4132 Muttenz, Switzerland; Wageningen University, Department of Environmental Technology, NL-6708 WG Wageningen, The Netherlands
| | - Bernhard Wehrli
- ETH Zurich, Institute of Biogeochemistry and Pollutant Dynamics, Universitätsstrasse 16, CH-8092 Zürich, Switzerland
| | - Karl Fent
- University of Applied Sciences and Arts Northwestern Switzerland, School of Life Sciences, Institute for Ecopreneurship, Gründenstrasse 40, CH-4132 Muttenz, Switzerland; ETH Zurich, Institute of Biogeochemistry and Pollutant Dynamics, Universitätsstrasse 16, CH-8092 Zürich, Switzerland.
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