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Toker-Bayraktar M, Ertugrul Mİ, Odabas S, Garipcan B. A typical method for decellularization of plants as biomaterials. MethodsX 2023; 11:102385. [PMID: 37817976 PMCID: PMC10561109 DOI: 10.1016/j.mex.2023.102385] [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: 12/25/2022] [Accepted: 09/16/2023] [Indexed: 10/12/2023] Open
Abstract
Decellularization is a process by which cells are removed from tissues or organs, leaving behind the extracellular matrix (ECM) structure. This process has gained interest in the fields of tissue engineering and regenerative medicine as a way to prepare suitable scaffolds for tissue reconstruction. Although the initial efforts come with the animal tissues, this technique can also be applied to various plant tissues with simple modifications, as plant-derived biomaterials have the benefit of being biocompatible and serving as a safe, all-natural substitute for synthetic or animal originated materials. Additionally, plant-derived biomaterials may help cells grow and differentiate, creating a three-dimensional environment for tissue regeneration and repair. Here we demonstrate a general method for plant tissue decellularization, including already experienced approaches and techniques.•Exhibit the basic steps for plant decellularization, which may be applied to several other plant tissues.•The proposed approach may be optimized considering various intended uses.•Gives basic information for the determination of decellularization efficiency.
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Affiliation(s)
- Melis Toker-Bayraktar
- Biomimetics and Bioinspired Biomaterials Research Laboratory, Institute of Biomedical Engineering, Boğaziçi University, Çengelköy, Istanbul 34684, Turkey
| | - Melek İpek Ertugrul
- Faculty of Science, Department of Chemistry, Biomaterials and Tissue Engineering Laboratory (bteLAB), Ankara University, Ankara 06560, Turkey
- Interdisciplinary Research Unit for Advanced Materials (INTRAM), Ankara University, Ankara 06560, Turkey
| | - Sedat Odabas
- Faculty of Science, Department of Chemistry, Biomaterials and Tissue Engineering Laboratory (bteLAB), Ankara University, Ankara 06560, Turkey
- Interdisciplinary Research Unit for Advanced Materials (INTRAM), Ankara University, Ankara 06560, Turkey
| | - Bora Garipcan
- Biomimetics and Bioinspired Biomaterials Research Laboratory, Institute of Biomedical Engineering, Boğaziçi University, Çengelköy, Istanbul 34684, Turkey
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Sahiti H, Bislimi K, Abdurrahmani Gagica N, Bajra Brahimaj T, Dalo E. Bioaccumulation and distribution of Pb, Ni, Zn and Fe in stinging nettle ( Urtica dioica) tissues and heavy metal-contamination assessment in the industrial zone of smelter Ferronikeli (Drenas-Kosovo). J Environ Sci Health A Tox Hazard Subst Environ Eng 2023:1-6. [PMID: 37463563 DOI: 10.1080/10934529.2023.2236535] [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] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 07/03/2023] [Accepted: 07/04/2023] [Indexed: 07/20/2023]
Abstract
Here, we determined the concentrations of Pb, Ni, Zn and Fe in the soil and in vegetative organs of stinging nettle (Urtica dioica) collected from the banks of the Drenica River in the vicinity of the Ferronikeli smelter. The results were compared with samples collected from the banks 20 km (Shalë village) upriver. In addition, the bioaccumulation factor (BCF) and translocation factor (TF) were determined. Meanwhile, to evaluate the level of pollution in the study area was used the contamination factor (CF), potential ecological risk factor (Eri) and the potential ecological risk index (RI). The order of heavy metals according to their concentration in the soil samples at both sampling sites was as follows: Fe > Ni > Zn > Pb. Concentrations in excess of the limits allowed for soils in the samples collected in the vicinity of the smelter were recorded for Pb (173.13 mg kg-1), Zn (1217.48 mg kg-1), and Ni (1443.93 mg kg-1), while at the control site, Zn (270.82 mg kg-1) and Ni (375.47 mg kg-1) were found in excess concentrations. But lead (Pb) level was under allowed limit. The data showed that the stinging nettle is not a hyperaccumulator because BCF < 1 at both sites for all metals under study. Furthermore, analysis of the translocation factor (TFsteam/root) showed that at low of heavy metal concentrations, their mobility was higher (TF > 1). The lowest mobility (TF < 1) was observed at site I (Poklek), where the concentration of heavy metals was higher, except for Fe. The opposite was shown for mobility of metals from stems to leaves (TFleave/steam). The evaluation of CF showed that the area near the Ferronikeli smelter had low degree of Pb, moderate degree of Zn and considerable degree of Ni contamination. The values of RI indicate low potential ecological risk index.
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Affiliation(s)
- Hazbije Sahiti
- Department of Biology, University of Prishtina "Hasan Prishtina", Prishtina, Kosovo
| | - Kemajl Bislimi
- Department of Biology, University of Prishtina "Hasan Prishtina", Prishtina, Kosovo
| | | | | | - Enis Dalo
- Department of Biology, University of Prishtina "Hasan Prishtina", Prishtina, Kosovo
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Garcia-Aloy M, Masuero D, Chitarrini G, Škrab D, Sivilotti P, Guella G, Vrhovsek U, Franceschi P. Untargeted lipidomic profiling of grapes highlights the importance of modified lipid species beyond the traditional compound classes. Food Chem 2023; 410:135360. [PMID: 36628919 DOI: 10.1016/j.foodchem.2022.135360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 11/15/2022] [Accepted: 12/28/2022] [Indexed: 12/31/2022]
Abstract
The aim of this paper is to provide a detailed characterisation of grape lipidome. To achieve this objective, it starts by describing a pipeline implemented in R software to allow the semi-automatic annotation of the detected lipid species. It also provides an extensive description of the different properties of each molecule (such as retention time dependencies, mass accuracy, adduct formation and fragmentation patterns), which allowed the annotations to be made more accurately. Most annotated lipids in the grape samples were (lyso)glycerophospholipids and glycerolipids, although a few free fatty acids, hydroxyceramides and sitosterol esters were also observed. The proposed pipeline also allowed the identification of a series of methylated glycerophosphates never previously observed in grapes. The current results highlight the importance of expanding chemical analyses beyond the classical lipid categories.
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Loureiro J, Čertner M, Lučanová M, Sliwinska E, Kolář F, Doležel J, Garcia S, Castro S, Galbraith DW. The Use of Flow Cytometry for Estimating Genome Sizes and DNA Ploidy Levels in Plants. Methods Mol Biol 2023; 2672:25-64. [PMID: 37335468 DOI: 10.1007/978-1-0716-3226-0_2] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
Flow cytometry has emerged as a uniquely flexible, accurate, and widely applicable technology for the analysis of plant cells. One of its most important applications centers on the measurement of nuclear DNA contents. This chapter describes the essential features of this measurement, outlining the overall methods and strategies, but going on to provide a wealth of technical details to ensure the most accurate and reproducible results. The chapter is aimed to be equally accessible to experienced plant cytometrists as well as those newly entering the field. Besides providing a step-by-step guide for estimating genome sizes and DNA-ploidy levels from fresh tissues, special attention is paid to the use of seeds and desiccated tissues for such purposes. Methodological aspects regarding field sampling, transport, and storage of plant material are also given in detail. Finally, troubleshooting information for the most common problems that may arise during the application of these methods is provided.
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Affiliation(s)
- João Loureiro
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal.
| | - Martin Čertner
- Department of Botany, Faculty of Science, Charles University, Prague, Czech Republic
- Czech Academy of Sciences, Institute of Botany, Průhonice, Czech Republic
| | - Magdalena Lučanová
- Czech Academy of Sciences, Institute of Botany, Průhonice, Czech Republic
- Department of Botany, Faculty of Science, University of South Bohemia, České Budějovice, Czech Republic
| | - Elwira Sliwinska
- Laboratory of Molecular Biology and Cytometry, Department of Agricultural Biotechnology, Bydgoszcz University of Science and Technology, Bydgoszcz, Poland
| | - Filip Kolář
- Department of Botany, Faculty of Science, Charles University, Prague, Czech Republic
- Czech Academy of Sciences, Institute of Botany, Průhonice, Czech Republic
| | - Jaroslav Doležel
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of Plant Structural and Functional Genomics, Olomouc, Czech Republic
| | - Sònia Garcia
- Institut Botànic de Barcelona (IBB-CSIC, Ajuntament de Barcelona), Barcelona, Catalonia, Spain
| | - Sílvia Castro
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - David W Galbraith
- School of Plant Sciences, BIO5 Institute, Arizona Cancer Center, Department of Biomedical Engineering, University of Arizona, Tucson, AZ, USA
- Henan University, School of Life Sciences, State Key Laboratory of Crop Stress Adaptation and Improvement, State Key Laboratory of Cotton Biology, Key Laboratory of Plant Stress Biology, Kaifeng, China
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Lopez-Marnet PL, Guillaume S, Méchin V, Reymond M. A robust and efficient automatic method to segment maize FASGA stained stem cross section images to accurately quantify histological profile. Plant Methods 2022; 18:125. [PMID: 36424625 PMCID: PMC9694518 DOI: 10.1186/s13007-022-00957-0] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 11/11/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Grasses internodes are made of distinct tissues such as vascular bundles, epidermis, rind and pith. The histology of grasses stem was largely revisited recently taking advantage of the development of microscopy combined with the development of computer-automated image analysis workflows. However, the diversity and complexity of the histological profile complicates quantification. Accurate and automated analysis of histological images thus remains challenging. RESULTS Herein, we present a workflow that automatically segments maize internode cross section images into 40 distinct tissues: two tissues in the epidermis, 19 tissues in the rind, 14 tissues in the pith and 5 tissues in the bundles. This level of segmentation is achieved by combining the Hue, Saturation and Value properties of each pixel and the location of each pixel in FASGA stained cross sectiona. This workflow is likewise able to highlight significant and subtle histological genotypic variations between maize internodes. The grain of precision provided by the workflow also makes it possible to demonstrate different levels of sensitivity to digestion by enzymatic cocktails of the tissues in the pith. The precision and strength of the workflow is all the more impressive because it is preserved on cross section images of other grasses such as miscanthus or sorghum. CONCLUSIONS The fidelity of this tool and its capacity to automatically identify variations of a large number of histological profiles among different genotypes pave the way for its use to identify genotypes of interest and to study the underlying genetic bases of variations in histological profiles in maize or other species.
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Affiliation(s)
- P.-L. Lopez-Marnet
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), 78000 Versailles, France
- Ecole Doctorale Numéro 581 : ABIES, AgroParisTech, Université Paris-Saclay, 19 Av du Maine, 75732 Paris Cedex 15, France
| | - S. Guillaume
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), 78000 Versailles, France
| | - V. Méchin
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), 78000 Versailles, France
| | - M. Reymond
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), 78000 Versailles, France
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Driscoll K, Butani MS, Gultian KA, McSweeny A, Patel JM, Vega SL. Plant Tissue Parenchyma and Vascular Bundles Selectively Regulate Stem Cell Mechanosensing and Differentiation. Cell Mol Bioeng 2022; 15:439-450. [PMID: 36444354 PMCID: PMC9700532 DOI: 10.1007/s12195-022-00737-9] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 08/09/2022] [Indexed: 11/03/2022] Open
Abstract
Introduction Plant tissues are plentiful, diverse, and due to convergent evolution are structurally similar to many animal tissues. Decellularized plant tissues feature microtopographies that resemble cancellous bone (porous parenchyma) and skeletal muscle (fibrous vascular bundles). However, the use of plant tissues as an inexpensive and abundant biomaterial for controlling stem cell behavior has not been widely explored. Methods Celery plant tissues were cut cross-sectionally (porous parenchyma) or longitudinally (fibrous vascular bundles) and decellularized. Human mesenchymal stem cells (MSCs) were then cultured atop plant tissues and confocal imaging of single cells was used to evaluate the early effects of microtopography on MSC adhesion, morphology, cytoskeletal alignment, Yes-associated protein (YAP) signaling, and downstream lineage commitment to osteogenic or myogenic phenotypes. Results Microtopography was conserved post plant tissue decellularization and MSCs attached and proliferated on plant tissues. MSCs cultured on porous parenchyma spread isotropically along the periphery of plant tissue pores. In contrast, MSCs cultured on vascular bundles spread anisotropically and aligned in the direction of fibrous vascular bundles. Differences in microtopography also influenced MSC nuclear YAP localization and actin anisotropy, with higher values observed on fibrous tissues. When exposed to osteogenic or myogenic culture medium, MSCs on porous parenchyma had a higher percentage of cells stain positive for bone biomarker alkaline phosphatase, whereas myoblast determination protein 1 (MyoD) was significantly upregulated for MSCs on fibrous vascular bundles. Conclusions Together, these results show that plant tissues are an abundant biomaterial with defined microarchitecture that can reproducibly regulate MSC morphology, mechanosensing, and differentiation. Supplementary Information The online version of this article contains supplementary material available 10.1007/s12195-022-00737-9.
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Affiliation(s)
- Kathryn Driscoll
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028 USA
| | - Maya S. Butani
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028 USA
| | - Kirstene A. Gultian
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028 USA
| | - Abigail McSweeny
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028 USA
| | - Jay M. Patel
- Department of Veterans Affairs, Atlanta VA Medical Center, Decatur, GA 30033 USA
- Department of Orthopaedics, Emory University School of Medicine, Atlanta, GA 30329 USA
| | - Sebastián L. Vega
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028 USA
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Ishida JK, Bini AP, Creste S, Van Sluys MA. Towards defining the core Saccharum microbiome: input from five genotypes. BMC Microbiol 2022; 22:193. [PMID: 35941528 PMCID: PMC9358853 DOI: 10.1186/s12866-022-02598-8] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 07/11/2022] [Indexed: 12/19/2022] Open
Abstract
Background Plant microbiome and its manipulation inaugurate a new era for plant biotechnology with the potential to benefit sustainable crop production. Here, we used the large-scale 16S rDNA sequencing analysis to unravel the dynamic, structure, and composition of exophytic and endophytic microbial communities in two hybrid commercial cultivars of sugarcane (R570 and SP80–3280), two cultivated genotypes (Saccharum officinarum and Saccharum barberi) and one wild species (Saccharum spontaneum). Results Our analysis identified 1372 amplicon sequence variants (ASVs). The microbial communities’ profiles are grouped by two, root and bulk soils and stem and leave when these four components are compared. However, PCoA-based data supports that endophytes and epiphytes communities form distinct groups, revealing an active host-derived mechanism to select the resident microbiota. A strong genotype-influence on the assembly of microbial communities in Saccharum ssp. is documented. A total of 220 ASVs persisted across plant cultivars and species. The ubiquitous bacteria are two potential beneficial bacteria, Acinetobacter ssp., and Serratia symbiotica. Conclusions The results presented support the existence of common and cultivar-specific ASVs in two commercial hybrids, two cultivated canes and one species of Saccharum across tissues (leaves, stems, and roots). Also, evidence is provided that under the experimental conditions described here, each genotype bears its microbial community with little impact from the soil conditions, except in the root system. It remains to be demonstrated which aspect, genotype, environment or both, has the most significant impact on the microbial selection in sugarcane fields. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-022-02598-8.
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Affiliation(s)
- Juliane K Ishida
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, Rua do Matão 277, Cidade Universitária, São Paulo, SP, 05508-090, Brazil.,Present address: Departamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627 - Pampulha, Belo Horizonte, MG, 31270-901, Brazil
| | - Andressa P Bini
- Centro de Cana, IAC-Apta, Ribeirão Preto, Av. Pádua Dias n11, CEP 13418-900, Piracicaba, São Paulo, Brazil
| | - Silvana Creste
- Centro de Cana, IAC-Apta, Ribeirão Preto, Av. Pádua Dias n11, CEP 13418-900, Piracicaba, São Paulo, Brazil
| | - Marie-Anne Van Sluys
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, Rua do Matão 277, Cidade Universitária, São Paulo, SP, 05508-090, Brazil.
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Chen Y, Shen SM, Yang M, Su MZ, Wang XM, Guo YW. Chemical and biological studies of Daphniphyllum oldhamii from Hunan Province, China. Phytochemistry 2022; 199:113170. [PMID: 35367212 DOI: 10.1016/j.phytochem.2022.113170] [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] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 03/01/2022] [Accepted: 03/12/2022] [Indexed: 06/14/2023]
Abstract
The fruits, twigs and leaves of Daphniphyllum oldhamii (Hemsl.) K. Rosenthal, collected from Longshan County, Hunan Province, China, were chemically investigated. Three undescribed daphniphyllum alkaloids, namely longshanoldhamines A‒C, and six known related ones have been isolated from the fruits, whereas two undescribed triterpenoids and one undescribed lignan, along with six known triterpenoids, were found in the twigs and leaves. Their structures were elucidated by extensive spectroscopic analysis, X-ray diffraction analysis and comparison with the reported data.
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Affiliation(s)
- Yi Chen
- Hunan Academy of Forestry, Changsha, 410004, China
| | - Shou-Mao Shen
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; School of Pharmacy, Yancheng Teachers' University, Yancheng, 224002, China
| | - Min Yang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Ming-Zhi Su
- Drug Discovery Shandong Laboratory, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, 264000, China
| | | | - Yue-Wei Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China; Drug Discovery Shandong Laboratory, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, 264000, China.
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Wieczorek D, Żyszka-Haberecht B, Kafka A, Lipok J. Determination of phosphorus compounds in plant tissues: from colourimetry to advanced instrumental analytical chemistry. Plant Methods 2022; 18:22. [PMID: 35184722 PMCID: PMC8859883 DOI: 10.1186/s13007-022-00854-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 02/08/2022] [Indexed: 05/16/2023]
Abstract
Although the spectrum of effective methods and techniques that allow determination of inorganic or total phosphorus is impressive, more precise analysis of these substances in plant tissues is not a routine or trivial task. The complexity of chemical composition of plant tissues treated as the analytical matrices is thought to be the main cause why there is no one answer, how appropriate phosphorus compounds may be determined qualitatively and quantitatively. Even if more advanced spectrophotometric measurements and classical variants of absorption (FAAS) or emission (ICP-AES/ ICP-OES) spectrometry techniques are used, it is necessary at first to isolate various forms of phosphorus from the matrix, and then to mineralize them prior the determination. Significant progress in such a kind of analytical efforts was brought by implementation of combined methods e.g. ETV-ICP-AES or HR-ETAAS, does allow the isolation of the phosphorus analyte and its detection during a kind of "one step" analytical procedure, directly in plant tissues. Similar benefits, regarding sensitivity of determinations, are obtained when XRF, SIMS or nanoSIMS-more expensive techniques of imaging the presence of phosphorus in biological matrices have been used. Nowadays, obviously being aware of higher limit of detection, nuclear magnetic resonance spectroscopy, especially the 31P NMR technique, is thought to be the most universal analytical tool allowing to determine various chemical forms of plant phosphorus qualitatively and quantitatively, at the same time. Although 31P NMR provides valuable information about the phosphorus profile of plants, it should be emphasized that each analytical issue related to the determination of phosphorus compounds in plant tissues and organs, requires an individual approach to defined problem.
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Affiliation(s)
- Dorota Wieczorek
- Department of Pharmacy and Ecological Chemistry, Institute of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland
| | - Beata Żyszka-Haberecht
- Department of Pharmacy and Ecological Chemistry, Institute of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland
| | - Anna Kafka
- Department of Pharmacy and Ecological Chemistry, Institute of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland
| | - Jacek Lipok
- Department of Pharmacy and Ecological Chemistry, Institute of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland
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Olisah C, Human LRD, Rubidge G, Adams JB. Organophosphate pesticides sequestered in tissues of a seagrass species - Zostera capensis from a polluted watershed. J Environ Manage 2021; 300:113657. [PMID: 34509819 DOI: 10.1016/j.jenvman.2021.113657] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 08/22/2021] [Accepted: 08/28/2021] [Indexed: 06/13/2023]
Abstract
Organophosphate pesticides (OPPs) are persistent in the environment, but little information is available on their bioaccumulation in seagrass. In this study, the seagrass - Zostera capensis was collected from Swartkops Estuary in South Africa to investigate the bioaccumulation of OPPs from contaminated sediments and the water column. This plant was chosen because it grows abundantly in the estuary's intertidal zone, making it a viable phytoremediator in the urban environment. Extraction was performed by the QuEChERS method followed by GC-MS analysis. The mean concentration of ∑OPPs ranged from 0.01 to 0.03 μg/L for surface water; 6.20-13.35 μg/kg dw for deep-rooted sediments; 18.79-37.75 μg/kg dw for leaf tissues and 12.14-39.80 μg/kg dw for root tissues of Z. capensis. The biota-sediment accumulation factors (BSAFs) were greater than one, indicating the potential for Z. capensis to bioaccumulate and intercept the targeted pesticides. A weak insignificant correlation observed between log BSAFs and log Kow indicates that the bioaccumulation of OPPs in tissues of Z. capensis were not dependent on the Kow. Eight of the selected pesticides had root-leaf translocation factors (TFr-l) greater than 1, indicating that Z. capensis can transport these chemicals from roots to leaves. The results from this study implies that this plant species can clean up OPP contamination in the environment.
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Affiliation(s)
- Chijioke Olisah
- DSI/NRF Research Chair, Shallow Water Ecosystems, Nelson Mandela University, Port Elizabeth, South Africa; Department of Botany, Nelson Mandela University, Port Elizabeth, South Africa; Institute for Coastal and Marine Research (CMR), Nelson Mandela University, Port Elizabeth, South Africa; Department of Chemistry, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Lucienne R D Human
- Institute for Coastal and Marine Research (CMR), Nelson Mandela University, Port Elizabeth, South Africa; South African Environmental Observation Network (SAEON) Elwandle Coastal Node Nelson Mandela University, Port Elizabeth, South Africa
| | - Gletwyn Rubidge
- Department of Chemistry, Nelson Mandela University, Port Elizabeth, South Africa
| | - Janine B Adams
- DSI/NRF Research Chair, Shallow Water Ecosystems, Nelson Mandela University, Port Elizabeth, South Africa; Department of Botany, Nelson Mandela University, Port Elizabeth, South Africa; Institute for Coastal and Marine Research (CMR), Nelson Mandela University, Port Elizabeth, South Africa
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11
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Olisah C, Rubidge G, Human LRD, Adams JB. A translocation analysis of organophosphate pesticides between surface water, sediments and tissues of common reed Phragmites australis. Chemosphere 2021; 284:131380. [PMID: 34323801 DOI: 10.1016/j.chemosphere.2021.131380] [Citation(s) in RCA: 16] [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: 04/25/2021] [Revised: 06/23/2021] [Accepted: 06/27/2021] [Indexed: 06/13/2023]
Abstract
This study investigated the ability of common reed, Phragmites australis to take up organophosphate pesticides (OPPs). The study site was the agriculturally polluted Sundays Estuary in South Africa. Surface water, leaves, roots, and deep-rooted-sediments of P. australis were collected along the length of the estuary and analysed for 13 different OPPS. The extraction of OPPs in plant tissues was performed by QuEChERS method followed by GC-MS analysis. The highest concentration of OPPs was found in leaves (16.41-31.39 μg kg-1 dw), followed by roots (13.92-30.88 μg kg-1 dw), and sediments (3.30-8.07 μg kg-1 dw). Of the 13 targeted OPPs, only one compound was not detected across the four sample matrices, thus reflecting widespread contamination in the Sundays Estuary. The biota sediment accumulation factor (BSAF) values of pyraclofos, quinalphos, fenitrothion, phosalone, EPN, diazinon, chlorpyrifos, pyrazophos, and isazophos were higher than one implying that P. australis possesses the ability to bioaccumulate these compounds. The root-leaf translocation factors (TFr-l) of these pesticides were higher than 1, suggesting that P. australis possesses the capacity to move these pesticides from roots to leaves. The insignificant correlation observed between log BSAF and log Kow and log TFr-l and log Kow implies that OPPs uptake by P. australis tissues were not dependent on log Kow. Our study demonstrates that P. australis possesses the potential to effectively remove OPPs from contaminated water and sediment.
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Affiliation(s)
- Chijioke Olisah
- DSI/NRF Research Chair, Shallow Water Ecosystems, Nelson Mandela University, Port Elizabeth, South Africa; Department of Botany, Institute of Coastal and Marine Research (CMR), Nelson Mandela University, Port Elizabeth, South Africa; Department of Chemistry, Nelson Mandela University, Port Elizabeth, South Africa.
| | - Gletwyn Rubidge
- Department of Chemistry, Nelson Mandela University, Port Elizabeth, South Africa
| | - Lucienne R D Human
- Department of Botany, Institute of Coastal and Marine Research (CMR), Nelson Mandela University, Port Elizabeth, South Africa; South African Environmental Observation Network (SAEON) Elwandle Coastal Node Nelson Mandela University, Port Elizabeth, South Africa
| | - Janine B Adams
- DSI/NRF Research Chair, Shallow Water Ecosystems, Nelson Mandela University, Port Elizabeth, South Africa; Department of Botany, Institute of Coastal and Marine Research (CMR), Nelson Mandela University, Port Elizabeth, South Africa
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Andráš P, Midula P, Milovská S, Matos JX, Kupka J, Buccheri G, Turisová I. Study of Potentially Toxic Elements Uptake into Organs of Quercus spp. from Copper Deposits in Slovakia, Italy and Portugal. Bull Environ Contam Toxicol 2021; 107:312-319. [PMID: 34232327 DOI: 10.1007/s00128-021-03323-3] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 06/24/2021] [Indexed: 06/13/2023]
Abstract
The article is focused on the application of Energy dispersive micro X-ray fluorescence spectroscopy as a specific method to determine the contents of potentially toxic elements and its spread in plant tissues. As a model species, Quercus spp. were selected. In order to compare the obtained results with previous research, four well-described abandoned Cu-deposits were selected for sampling: Ľubietová (Slovakia), Libiola and Caporciano (Italy), and São Domingos (Portugal). The results of micro X-ray fluorescence spectrometry confirm the irregular contamination of Quercus spp. by potentially toxic elements. The level of contamination is the highest predominantly in the root cortex, where is also the highest Ca contents (with exception of São Domingos). At Ľubietová and Caporciano, high Ni content was described in branches cortex, in branches mesoderm also Fe, Cu and Zn. At the same time, the inhibition influence of Ca was also confirmed regarding the input of these elements into plants.
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Affiliation(s)
- Peter Andráš
- Faculty of Natural Sciences, Matej Bel University in Banska Bystrica, Tajovského 40, 974 01, Banská Bystrica, Slovakia
| | - Pavol Midula
- Faculty of Natural Sciences, Matej Bel University in Banska Bystrica, Tajovského 40, 974 01, Banská Bystrica, Slovakia.
| | - Stanislava Milovská
- The Earth Science Institute of the Slovak Academy of Sciences, Ďumbierska 1, 974 01, Banská Bystrica, Slovakia
| | - João Xavier Matos
- Laboratório Nacional de Energia e Geologia (Portuguese Geological Survey), Ap. 14, 7601-909, Aljustrel, Portugal
| | - Jiří Kupka
- Faculty of Mining and Geology, VŠB - Technical University of Ostrava, 17. listopadu 2172/15, 708 33, Ostrava-Poruba, Czech Republic
| | - Giuseppe Buccheri
- Faculty of Natural Sciences, Matej Bel University in Banska Bystrica, Tajovského 40, 974 01, Banská Bystrica, Slovakia
| | - Ingrid Turisová
- Faculty of Natural Sciences, Matej Bel University in Banska Bystrica, Tajovského 40, 974 01, Banská Bystrica, Slovakia
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Sturtevant D, Aziz M, Romsdahl TB, Corley CD, Chapman KD. In Situ Localization of Plant Lipid Metabolites by Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry Imaging (MALDI-MSI). Methods Mol Biol 2021; 2295:417-38. [PMID: 34047991 DOI: 10.1007/978-1-0716-1362-7_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) has emerged as a major analytical platform for the determination and localization of lipid metabolites directly from tissue sections. Unlike analysis of lipid extracts, where lipid localizations are lost due to homogenization and/ or solvent extraction, MALDI-MSI analysis is capable of revealing spatial localization of metabolites while simultaneously collecting high chemical resolution mass spectra. Important considerations for obtaining high quality MALDI-MS images include tissue preservation, section preparation, MS data collection and data processing. Errors in any of these steps can lead to poor quality metabolite images and increases the chance for metabolite misidentification and/ or incorrect localization. Here, we present detailed methods and recommendations for specimen preparation, MALDI-MS instrument parameters, software analysis platforms for data processing, and practical considerations for each of these steps to ensure acquisition of high-quality chemical and spatial resolution data for reconstructing MALDI-MS images of plant tissues.
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Abstract
A chemical imaging method to mass surveil bacteria cells among plant tissues in situ is reported. Bacteria cells were pre-labeled with 3-mercaptophenylboronic acid for complexation with gold nanoparticles. Surface-enhanced Raman spectra were collated en masse to generate panoramic chemical images of bacteria populations. The approach was successfully employed to study the distribution of mass bacteria populations directly on and in selected plant tissues. This study demonstrates the great potential with which SERS imaging can be utilized for the study of bacterial cells among complex matrices, in some ways that are superior to electron and fluorescent microscopies.
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Affiliation(s)
- Michael E Hickey
- Department of Food Science, University of Massachusetts, Amherst, MA, 01003, USA
| | - Lili He
- Department of Food Science, University of Massachusetts, Amherst, MA, 01003, USA.
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15
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Borah G, Nath N, Deka H. Effects on anatomy of some abundantly growing herbs in the effluents contaminated soil of oil refinery. Environ Sci Pollut Res Int 2021; 28:11549-11557. [PMID: 33128153 DOI: 10.1007/s11356-020-11407-6] [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] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 10/26/2020] [Indexed: 06/11/2023]
Abstract
The soil contaminations from refinery effluents are still a burning problem in the oil-producing nations of the globe. In the present study, the effect of oil refinery effluents on anatomical characteristics of some selected herbs has been studied. The abundantly growing herb species of the contaminated sites that includes Ageratum conyzoides, Alternanthera paronychioides, and Cyperus brevifolius were selected for the anatomical investigation. The samplings site of these herbs was adjacent to Numaligarh oil refinery, Assam, India, where a huge amount of oil effluents are released every day. For comparison, the same plant species were collected from the control sites where effluent contamination was not evident. The results showed that anatomical sections of both shoots and roots of the studied herbs are adversely affected by oil refinery effluents contamination and showed various structural abnormalities. Dark/blackish depositions were traced in the different tissues that include the epidermis, cortex, vascular bundles and pith region in the plant samples collected from the effluents contaminated areas. The results also revealed widening, thickening, and reduction of different tissues of the studied plants besides affecting overall shoot diameter; cell sizes; and length of epidermis, cortex, vascular bundles, and pith as a defense mechanism against the adverse condition created due to effluent contamination. Such abnormalities were not observed in control plants.
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Affiliation(s)
- Glory Borah
- Environmental Botany and Biotechnology Laboratory, Department of Botany, Gauhati University, Guwahati, Assam, 781014, India
| | - Namita Nath
- Environmental Botany and Biotechnology Laboratory, Department of Botany, Gauhati University, Guwahati, Assam, 781014, India
| | - Hemen Deka
- Environmental Botany and Biotechnology Laboratory, Department of Botany, Gauhati University, Guwahati, Assam, 781014, India.
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Fang T, Jiang T, Yang K, Li J, Liang Y, Zhao X, Gao N, Li H, Lu W, Cui K. Biomonitoring of heavy metal contamination with roadside trees from metropolitan area of Hefei, China. Environ Monit Assess 2021; 193:151. [PMID: 33641075 DOI: 10.1007/s10661-021-08926-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 09/30/2020] [Accepted: 02/04/2021] [Indexed: 06/12/2023]
Abstract
Air and dust borne heavy metals can be deposited and bioaccumulated by plants; therefore, biomonitoring employing plants is an effective tool for environmental impact assessment in urban environments. In this study, in addition to road dust, leaves and bark were collected from four common tree species at roadside and urban park sampling sites within the metropolitan area of Hefei, China. A range of heavy metals were analyzed by ICP-MS and AFS. The metal accumulation index (MAI) was adopted to compare the bioaccumulation capacity. Results showed that Cd was highly enriched in road dust although its abundance was low in comparison with that of other elements. The MAI values presented a narrow range (1.8-2.7); however, significant differences (p < 0.05) were found for Al, Cu, Zn, and As among the tree species. Moreover, deciduous Platanus orientalis bioaccumulated more nonessential As than the other species and deserved further risk management. In addition, bark samples from Cinnamomum camphora bioaccumulated more heavy metals than the other species as a result of its morphological and anatomical characteristics. The distribution patterns of heavy metals in tree tissues showed obvious spatial heterogeneity, as impacted by anthropogenic activities to varying degrees. This study examined the biomonitoring potential of roadside trees and the distribution pattern of heavy metals in an urban area under rapid development. Results from the present study could provide baseline data for urban environmental impact assessment and the design of green belts.
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Affiliation(s)
- Ting Fang
- Key Laboratory of Freshwater Aquaculture and Enhancement of Anhui Province, Fisheries Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230001, Anhui, China
| | - Ting Jiang
- Hefei City Landscaping Quality Supervision and Management Center, Hefei, 230001, Anhui, China
| | - Kun Yang
- Key Laboratory of Freshwater Aquaculture and Enhancement of Anhui Province, Fisheries Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230001, Anhui, China
| | - Jing Li
- Key Laboratory of Freshwater Aquaculture and Enhancement of Anhui Province, Fisheries Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230001, Anhui, China
| | - Yangyang Liang
- Key Laboratory of Freshwater Aquaculture and Enhancement of Anhui Province, Fisheries Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230001, Anhui, China
| | - Xiuxia Zhao
- Key Laboratory of Freshwater Aquaculture and Enhancement of Anhui Province, Fisheries Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230001, Anhui, China
| | - Na Gao
- Key Laboratory of Freshwater Aquaculture and Enhancement of Anhui Province, Fisheries Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230001, Anhui, China
| | - Hui Li
- School of Resources and Environment, Anhui Agricultural University, Hefei, 230001, Anhui, China
| | - Wenxuan Lu
- Key Laboratory of Freshwater Aquaculture and Enhancement of Anhui Province, Fisheries Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230001, Anhui, China
| | - Kai Cui
- Key Laboratory of Freshwater Aquaculture and Enhancement of Anhui Province, Fisheries Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230001, Anhui, China.
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Yadav V, Arif N, Kováč J, Singh VP, Tripathi DK, Chauhan DK, Vaculík M. Structural modifications of plant organs and tissues by metals and metalloids in the environment: A review. Plant Physiol Biochem 2021; 159:100-112. [PMID: 33359959 DOI: 10.1016/j.plaphy.2020.11.047] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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: 10/10/2019] [Accepted: 11/24/2020] [Indexed: 06/12/2023]
Abstract
At the dawn of the industrial revolution, the exorbitant use of heavy metals and toxic elements by mankind unfurls a powerful and complex web of hazard all around the world that significantly contributed to unprecedented trends in environmental degradation. Plants as sessile organisms, that cannot escape from the stress directly, have adapted to this environment via concurrent configurations of several traits. Among them the anatomy has been identified as much more advanced field of research that brought the explosion of interest among the expertise and its prodigious importance in stress physiology is unavoidable. In conjunction with various other disciplines, like physiology, biochemistry, genomics and metabolomics, the plant anatomy provides a large data sets that are paving the way towards a comprehensive and holistic understanding of plant growth, development, defense and productivity under heavy metal and toxic element stress. Present paper advances our recent knowledge about structural alterations of plant tissues induced by metals and metalloids, like antimony (Sb), arsenic (As), aluminium (Al), copper (Cu), cadmium (Cd), chromium (Cr), lead (Pb), manganese (Mn), mercury (Hg), nickel (Ni) and zinc (Zn) and points on essential role of plant anatomy and its understanding for plant growth and development in changing environment. Understanding of anatomical adaptations of various plant organs and tissues to heavy metals and metalloids could greatly contribute to integral and modern approach for investigation of plants in changing environmental conditions. These findings are necessary for understanding of the whole spectra of physiological and biochemical reactions in plants and to maintain the crop productivity worldwide. Moreover, our holistic perception regarding the processes underlying the plant responses to metal(loids) at anatomical level are needed for improving crop management and breeding techniques.
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Affiliation(s)
- Vaishali Yadav
- D. D. Pant Interdisciplinary Research Lab, Department of Botany, University of Allahabad, Allahabad, 211 002, India
| | - Namira Arif
- D. D. Pant Interdisciplinary Research Lab, Department of Botany, University of Allahabad, Allahabad, 211 002, India
| | - Ján Kováč
- Department of Plant Physiology, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina B2, Ilkovičova 6, SK-842 15, Bratislava, Slovakia; Department of Phytology, Faculty of Forestry, Technical University in Zvolen, T. G. Masaryka 24, 960 01, Zvolen, Slovakia
| | - Vijay Pratap Singh
- Department of Botany, C.M.P. Degree College, A Constituent PG College of University of Allahabad, Allahabad, 211002, India
| | - Durgesh Kumar Tripathi
- Amity Institute of Organic Agriculture, Amity University Uttar Pradesh, I 2 Block, 5th Floor, AUUP Campus Sector-125, Noida, 201313, India.
| | - Devendra Kumar Chauhan
- D. D. Pant Interdisciplinary Research Lab, Department of Botany, University of Allahabad, Allahabad, 211 002, India.
| | - Marek Vaculík
- Department of Plant Physiology, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina B2, Ilkovičova 6, SK-842 15, Bratislava, Slovakia; Institute of Botany, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 23, Bratislava, Slovakia.
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18
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Zhang L, Tan J, Xing G, Dou X, Guo X. Cotton stalk-derived hydrothermal carbon for methylene blue dye removal: investigation of the raw material plant tissues. BIORESOUR BIOPROCESS 2021; 8:10. [PMID: 38650223 PMCID: PMC10992739 DOI: 10.1186/s40643-021-00364-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 01/25/2021] [Indexed: 01/13/2023] Open
Abstract
Conversion of the abundant agricultural residual cotton stalk (CS) into useful chemicals or functional materials could alleviate the fossil fuels caused energy shortages and environmental crises. Although some advances have been achieved, less attention has been paid to the plant tissues effect. In this study, the plant tissue of CS was changed by part degradation of some components (hemicelluloses and lignin, for example) with the aid of acid/base (or both). The pretreated CS was transformed into hydrochar by hydrothermal carbonization (HTC) method. Morphological and chemical compositions of CS hydrochar were analyzed by various techniques, including elemental analysis, Fourier transform infrared (FTIR), BET analysis, X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). Methylene blue (MB) removal of prepared CS hydrochar was used to evaluate CS hydrochar pollutions adsorption capacity. Results reveal acid/base (or both) pretreatment is beneficial for CS raw material to prepare high-quality CS hydrochar. The effects of some parameters, such as initial MB concentration, temperature, pH value and recyclability on the adsorption of MB onto both acid and base-pretreated CS hydrochar (CS-H2SO4 + NaOH-HTC) were studied. The present work exhibits the importance of agricultural waste biomass material plant tissues on its derived materials, which will have a positive effect on the direct utilization of waste biomass.
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Affiliation(s)
- Libo Zhang
- State Key Laboratory of Heavy Oil Processing, College of Engineering, China University of Petroleum-Beijing at Karamay, Karamay, 834000, People's Republic of China.
| | - Junyan Tan
- Shenzhen College of International Education, Shenzhen, 518048, People's Republic of China
| | - Gangying Xing
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, People's Republic of China
| | - Xintong Dou
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, People's Republic of China
| | - Xuqiang Guo
- State Key Laboratory of Heavy Oil Processing, College of Engineering, China University of Petroleum-Beijing at Karamay, Karamay, 834000, People's Republic of China
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Abstract
The isolation of nucleic acids from a biological sample is an important step for many molecular biology applications and medical diagnostic assays. This chapter describes an efficient protocol using established acidic CTAB (with a pH value of 5.0 to 6.8) based extraction method for isolation and/or purification of high molecular weight genomic DNA from a range of fresh and difficult sources from plant, animal, fungi, and soil material. This protocol is suitable for many sequencing and genotyping applications, including large-scale sample screening.
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Affiliation(s)
- Ruslan Kalendar
- Department of Agricultural Sciences, Viikki Plant Science Centre and Helsinki Sustainability Centre, University of Helsinki, Helsinki, Finland. .,National Laboratory Astana, Nazarbayev University, Nur-Sultan, Kazakhstan.
| | - Svetlana Boronnikova
- Department of Botany and Genetics of Plants, Faculty of Biology, Perm State University, Perm, Russia
| | - Mervi Seppänen
- Department of Agricultural Sciences, Viikki Plant Science Centre and Helsinki Sustainability Centre, University of Helsinki, Helsinki, Finland
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20
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Chen J, He LX, Cheng YX, Ye P, Wu DL, Fang ZQ, Li J, Ying GG. Trace analysis of 28 antibiotics in plant tissues (root, stem, leaf and seed) by optimized QuEChERS pretreatment with UHPLC-MS/MS detection. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1161:122450. [PMID: 33246281 DOI: 10.1016/j.jchromb.2020.122450] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 09/01/2020] [Accepted: 10/24/2020] [Indexed: 10/23/2022]
Abstract
Phytoremediation has proven to be an effective in-situ treatment technique for antibiotic contamination. Due to the immature methods of extracting multi-antibiotics in different plant tissues, the antibiotic absorption and transportation mechanism in the phytoremediation process has yet to be resolved. Therefore, an improved Quick, Easy, Cheap, Effective, Rugged and Safe (QuEChERS) pretreatment with ultra-high-performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) detection method for 28 antibiotics in different plant tissues (root, stem, leaf and seed) was developed in this study. The optimized method showed satisfactory performance with recoveries for most antibiotics ranging from 70% to 130% (except sulfadoxine with 138 ± 8.84% in root, sulfameter with 68.9 ± 1.87% and sulfadoxine with 141 ± 10.0% in seed). The limits of detection (LODs) of the target compounds in root, stem, leaf and seed were 0.04 ± 0.02 ~ 2.50 ± 1.14 ng/g, 0.05 ± 0.02 ~ 1.78 ± 0.42 ng/g, 0.06 ± 0.01 ~ 2.50 ± 0.14 ng/g and 0.13 ± 0.10 ~ 3.64 ± 0.74 ng/g, respectively. This developed method was successfully applied to the determination of antibiotics in different tissues of hydroponic wetland plants exposed to antibiotics-spiked water for one-month. Sixteen of 28 spiked antibiotics were detected in plant tissue samples. Overall, of these 16 antibiotics, all were detected in root samples (from < LOQ to 1478 ± 353 ng/g), eleven in stem samples (from < LOQ to 425 ± 47.0 ng/g), and nine in leaf samples (from < LOQ to 429 ± 84.5 ng/g). This developed analytical method provided a robust tool for the simultaneous screening and determination of antibiotics in different plant tissues.
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Affiliation(s)
- Jun Chen
- Guangdong Provincial Engineering Technology Research Center for Life and Health of River & Lake, Pearl River Water Resources Research Institute, Pearl River Water Resources Commission of the Ministry of Water Resources, Guangzhou 510611, China.
| | - Lu-Xi He
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Environmental Theoretical Chemistry, South China Normal University, Guangzhou 510006, China
| | - Yu-Xiao Cheng
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Environmental Theoretical Chemistry, South China Normal University, Guangzhou 510006, China
| | - Pu Ye
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Environmental Theoretical Chemistry, South China Normal University, Guangzhou 510006, China
| | - Dai-Ling Wu
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Environmental Theoretical Chemistry, South China Normal University, Guangzhou 510006, China
| | - Zhan-Qiang Fang
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Environmental Theoretical Chemistry, South China Normal University, Guangzhou 510006, China
| | - Jie Li
- Guangdong Provincial Engineering Technology Research Center for Life and Health of River & Lake, Pearl River Water Resources Research Institute, Pearl River Water Resources Commission of the Ministry of Water Resources, Guangzhou 510611, China.
| | - Guang-Guo Ying
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Environmental Theoretical Chemistry, South China Normal University, Guangzhou 510006, China
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21
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González-Velázquez DA, Mazorra-Manzano MA, Martínez-Porchas M, Huerta-Ocampo JA, Vallejo-Córdoba B, Mora-Cortes WG, Moreno-Hernández JM, Ramírez-Suarez JC. Exploring the Milk-Clotting and Proteolytic Activities in Different Tissues of Vallesia glabra: a New Source of Plant Proteolytic Enzymes. Appl Biochem Biotechnol 2021; 193:389-404. [PMID: 33009584 DOI: 10.1007/s12010-020-03432-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 09/28/2020] [Indexed: 01/18/2023]
Abstract
Proteolytic enzymes are widely distributed in nature, playing essential roles in important biological functions. Recently, the use of plant proteases at the industrial level has mainly increased in the food industry (e.g., cheesemaking, meat tenderizing, and protein hydrolysate production). Current technological and scientific advances in the detection and characterization of proteolytic enzymes have encouraged the search for new natural sources. Thus, this work aimed to explore the milk-clotting and proteolytic properties of different tissues of Vallesia glabra. Aqueous extracts from the leaves, fruits, and seeds of V. glabra presented different protein profiles, proteolytic activity, and milk-clotting activity. The milk-clotting activity increased with temperature (30-65 °C), but this activity was higher in leaf (0.20 MCU/mL) compared with that in fruit and seed extracts (0.12 and 0.11 MCU/mL, respectively) at 50 °C. Proteolytic activity in the extracts assayed at different pH (2.5-12.0) suggested the presence of different types of active proteases, with maximum activity at acidic conditions (4.0-4.5). Inhibitory studies indicated that major activity in V. glabra extracts is related to cysteine proteases; however, the presence of serine, aspartic, and metalloproteases was also evident. The hydrolytic profile of caseins indicated that V. glabra leaves could be used as a rennet substitute in cheesemaking, representing a new and promising source of proteolytic enzymes.
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Muhammad P, Liu J, Xing R, Wen Y, Wang Y, Liu Z. Fast probing of glucose and fructose in plant tissues via plasmonic affinity sandwich assay with molecularly-imprinted extraction microprobes. Anal Chim Acta 2017; 995:34-42. [PMID: 29126479 DOI: 10.1016/j.aca.2017.09.044] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 09/23/2017] [Accepted: 09/27/2017] [Indexed: 10/18/2022]
Abstract
Determination of specific target compounds in agriculture food and natural plant products is essential for many purposes; however, it is often challenging due to the complexity of the sample matrices. Herein we present a new approach called plasmonic affinity sandwich assay for the facile and rapid probing of glucose and fructose in plant tissues. The approach mainly relies on molecularly imprinted plasmonic extraction microprobes, which were prepared on gold-coated acupuncture needles via boronate affinity controllable oriented surface imprinting with the target monosaccharide as the template molecules. An extraction microprobe was inserted into plant tissues under investigation, which allowed for the specific extraction of glucose or fructose from the tissues. The glucose or fructose molecules extracted on the microprobe were labeled with boronic acid-functionalized Raman-active silver nanoparticles, and thus affinity sandwich complexes were formed on the microprobes. After excess Raman nanotags were washed away, the microprobe was subjected to Raman detection. Upon being irradiated with a laser beam, surface plasmon on the gold-coated microprobes was generated, which further produced plasmon-enhanced Raman scattering of the silver-based nanotags and thereby provided sensitive detection. Apple fruits, which contain abundant glucose and fructose, were used as a model of plant tissues. The approach exhibited high specificity, good sensitivity (limit of detection, 1 μg mL-1), and fast speed (the whole procedure required only 20 min). The spatial distribution profiles of glucose and fructose within an apple were investigated by the developed approach.
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Affiliation(s)
- Pir Muhammad
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jia Liu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Rongrong Xing
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yanrong Wen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yijia Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Zhen Liu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
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Moreno D, Berli F, Bottini R, Piccoli PN, Silva MF. Grapevine tissues and phenology differentially affect soluble carbohydrates determination by capillary electrophoresis. Plant Physiol Biochem 2017; 118:394-399. [PMID: 28711788 DOI: 10.1016/j.plaphy.2017.07.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 05/12/2017] [Revised: 07/07/2017] [Accepted: 07/08/2017] [Indexed: 06/07/2023]
Abstract
Soluble carbohydrates distribution depends on plant physiology and, among other important factors, determines fruit yield and quality. In plant biology, the analysis of sugars is useful for many purposes, including metabolic studies. Capillary electrophoresis (CE) proved to be a powerful green separation technique with minimal sample preparation, even in complex plant tissues, that can provide high-resolution efficiency. Matrix effect refers to alterations in the analytical response caused by components of a sample other than the analyte of interest. Thus, the assessment and reduction of the matrix factor is fundamental for metabolic studies in different matrices. The present study evaluated the source and levels of matrix effects in the determination of most abundant sugars in grapevine tissues (mature and young leaves, berries and roots) at two phenological growth stages. Sucrose was the sugar that showed the least matrix effects, while fructose was the most affected analyte. Based on plant tissues, young leaves presented the smaller matrix effects, irrespectively of the phenology. These changes may be attributed to considerable differences at chemical composition of grapevine tissues with plant development. Therefore, matrix effect should be an important concern for plant metabolomics.
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Affiliation(s)
- Daniela Moreno
- Instituto de Biología Agrícola de Mendoza, CONICET-Universidad Nacional de Cuyo, Facultad de Ciencias Agrarias, Almirante Brown 500, M5507 Chacras de Coria, Mendoza, Argentina.
| | - Federico Berli
- Instituto de Biología Agrícola de Mendoza, CONICET-Universidad Nacional de Cuyo, Facultad de Ciencias Agrarias, Almirante Brown 500, M5507 Chacras de Coria, Mendoza, Argentina.
| | - Rubén Bottini
- Instituto de Biología Agrícola de Mendoza, CONICET-Universidad Nacional de Cuyo, Facultad de Ciencias Agrarias, Almirante Brown 500, M5507 Chacras de Coria, Mendoza, Argentina.
| | - Patricia N Piccoli
- Instituto de Biología Agrícola de Mendoza, CONICET-Universidad Nacional de Cuyo, Facultad de Ciencias Agrarias, Almirante Brown 500, M5507 Chacras de Coria, Mendoza, Argentina.
| | - María F Silva
- Instituto de Biología Agrícola de Mendoza, CONICET-Universidad Nacional de Cuyo, Facultad de Ciencias Agrarias, Almirante Brown 500, M5507 Chacras de Coria, Mendoza, Argentina.
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Sato EM, Baroux C. Analysis of 3D Cellular Organization of Fixed Plant Tissues Using a User-guided Platform for Image Segmentation. Bio Protoc 2017; 7:e2355. [PMID: 34541102 DOI: 10.21769/bioprotoc.2355] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 05/08/2017] [Accepted: 05/25/2017] [Indexed: 11/02/2022] Open
Abstract
The advent of non-invasive, high-resolution microscopy imaging techniques and computational pipelines for high-throughput image processing has contributed to gain insights in plant organ morphogenesis at the cellular level. Confocal scanning laser microscopy (CSLM) allows the generation of three dimensional images constituted of serial optical sections reporting on stained subcellular structures. Fluorescent labels of cell walls or cell membranes, either chemically or through reporter proteins, are particularly useful for the analyses of tissue organization and cellular shapes in 3D. Image segmentation based on cell boundary signals is used as an input to generate 3D-segments representing cells. These digitalized, 3D objects provide quantitative data on cell shape, size, geometry, position or on (intercellular) intensity signals if additional reporters are used. Herein, we report a detailed, annotated workflow for image segmentation using microscopic data. We used it in the context of a study of tissue patterning during ovule primordium development in Arabidopsis thaliana. Whole carpels are stained for cell boundaries using a modified pseudo-Schiff propidium iodide (mPS-PI) protocol, 3D images are acquired at high resolution by CSLM, segmented and annotated for individual cell types using ImarisCell. This allows for quantitative analyses of cell shape and cell number that are relevant for tissue morphodynamic studies.
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Affiliation(s)
- Ethel Mendocilla Sato
- Department of Plant and Microbial Biology, University of Zürich, Zürich, Switzerland
| | - Célia Baroux
- Department of Plant and Microbial Biology, University of Zürich, Zürich, Switzerland
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Abstract
Shotgun proteomics has a key role in quantitative estimation of proteins from biological systems under different conditions, which is crucial in the understanding of their functional roles. Isobaric tagging for relative and absolute quantitation (iTRAQ) mass spectrometry is based on pre-labeling of peptides with mass tags which allows the multiplex analysis of up to eight proteomes simultaneously. We describe here a detailed protocol for sample preparation and iTRAQ 4-plex labeling for relative quantification of multiple samples from human and plant tissues. We also present two strategies for peptide fractionation after the iTRAQ labeling protocol.
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Affiliation(s)
- Erika Velásquez Núñez
- Laboratory of Protein Chemistry - Proteomics Unit, Chemistry Institute, Federal University of Rio de Janeiro, Bloco A, Lab 543, Avenida Athos da Silveira Ramos 149, Cidade Universitária, 21941-909, Rio de Janeiro, RJ, Brazil
| | - Gilberto Barbosa Domont
- Laboratory of Protein Chemistry - Proteomics Unit, Chemistry Institute, Federal University of Rio de Janeiro, Bloco A, Lab 543, Avenida Athos da Silveira Ramos 149, Cidade Universitária, 21941-909, Rio de Janeiro, RJ, Brazil
| | - Fábio César Sousa Nogueira
- Laboratory of Protein Chemistry - Proteomics Unit, Chemistry Institute, Federal University of Rio de Janeiro, Bloco A, Lab 543, Avenida Athos da Silveira Ramos 149, Cidade Universitária, 21941-909, Rio de Janeiro, RJ, Brazil.
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Stefanowicz AM, Stanek M, Nobis M, Zubek S. Few effects of invasive plants Reynoutria japonica, Rudbeckia laciniata and Solidago gigantea on soil physical and chemical properties. Sci Total Environ 2017; 574:938-946. [PMID: 27665453 DOI: 10.1016/j.scitotenv.2016.09.120] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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: 06/06/2016] [Revised: 09/15/2016] [Accepted: 09/15/2016] [Indexed: 05/24/2023]
Abstract
Biological invasions are an important problem of human-induced changes at a global scale. Invasive plants can modify soil nutrient pools and element cycling, creating feedbacks that potentially stabilize current or accelerate further invasion, and prevent re-establishment of native species. The aim of this study was to compare the effects of Reynoutria japonica, Rudbeckia laciniata and Solidago gigantea, invading non-forest areas located within or outside river valleys, on soil physical and chemical parameters, including soil moisture, element concentrations, organic matter content and pH. Additionally, invasion effects on plant species number and total plant cover were assessed. The concentrations of elements in shoots and roots of invasive and native plants were also measured. Split-plot ANOVA revealed that the invasions significantly reduced plant species number, but did not affect most soil physical and chemical properties. The invasions decreased total P concentration and increased N-NO3 concentration in soil in comparison to native vegetation, though the latter only in the case of R. japonica. The influence of invasion on soil properties did not depend on location (within- or outside valleys). The lack of invasion effects on most soil properties does not necessarily imply the lack of influence of invasive plants, but may suggest that the direction of the changes varies among replicate sites and there are no general patterns of invasion-induced alterations for these parameters. Tissue element concentrations, with the exception of Mg, did not differ between invasive and native plants, and were not related to soil element concentrations.
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Affiliation(s)
- Anna M Stefanowicz
- W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, 31-512 Kraków, Poland.
| | - Małgorzata Stanek
- W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, 31-512 Kraków, Poland.
| | - Marcin Nobis
- Institute of Botany, Faculty of Biology and Earth Sciences, Jagiellonian University, Kopernika 27, 31-501 Kraków, Poland.
| | - Szymon Zubek
- Institute of Botany, Faculty of Biology and Earth Sciences, Jagiellonian University, Kopernika 27, 31-501 Kraków, Poland.
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Otero XL, Tierra W, Atiaga O, Guanoluisa D, Nunes LM, Ferreira TO, Ruales J. Arsenic in rice agrosystems (water, soil and rice plants) in Guayas and Los Ríos provinces, Ecuador. Sci Total Environ 2016; 573:778-787. [PMID: 27592465 DOI: 10.1016/j.scitotenv.2016.08.162] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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: 06/05/2016] [Revised: 08/21/2016] [Accepted: 08/22/2016] [Indexed: 06/06/2023]
Abstract
Geogenic arsenic (As) can accumulate and reach high concentrations in rice grains, thus representing a potential threat to human health. Ecuador is one of the main consumers of rice in South America. However, there is no information available about the concentrations of As in rice agrosystems, although some water bodies are known to contain high levels of the element. We carried out extensive sampling of water, soil, rice plants and commercial rice (obtained from local markets). Water samples were analysed to determine physico-chemical properties and concentrations of dissolved arsenic. Soil samples were analysed to determine total organic C, texture, total Fe and amorphous Fe oxyhydroxides (FeOx), total arsenic (tAs) and the bioavailable fraction (AsMe). The different plant parts were analysed separately to determine total (tAs), inorganic (iAs) and organic arsenic (oAs). Low concentrations of arsenic were found in samples of water (generally <10μgl-1) and soil (4.48±3mgkg-1). The tAs in the rice grains was within the usual range (0.042-0.125mgkg-1 dry weight, d.w.) and was significantly lower than in leaves (0.123-0.286mgkg-1 d.w.) and stems (0.091-0.201mgkg-1 d.w.). The FeOx and tAs and also AsMe in flood water were negatively correlated with tAs in the plants. However, the concentrations of As in stems and leaves were linearly correlated with tAs in the soil and flood water. The relationship between tAs and arsenic in the grain fitted a logarithmic function, as did that between tAs in the grain and the stem. The findings seem to indicate that high concentrations of arsenic in the environment (soil or water) or in the rice stem do not necessarily imply accumulation of the element in the grain. The iAs form was dominant (>80%) in all parts of the rice plants.
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Affiliation(s)
- X L Otero
- Departamento de Edafoloxía e Química Agrícola, Facultade de Bioloxía, Universidade de Santiago de Compostela, Campus Sur, 15782 Santiago de Compostela, Spain; Departamento de Ciencia de los Alimentos y Biotecnología, Escuela Politécnica Nacional, Quito, Ecuador.
| | - W Tierra
- Departamento de Ciencia de los Alimentos y Biotecnología, Escuela Politécnica Nacional, Quito, Ecuador
| | - O Atiaga
- Departamento de Ciencias de la Tierra y la Construcción, Universidad de las Fuerzas Armadas ESPE, Av. General Rumiñahui s/n, Sangolquí, P.O. Box 171-5-231B, Ecuador
| | - D Guanoluisa
- Departamento de Ciencia de los Alimentos y Biotecnología, Escuela Politécnica Nacional, Quito, Ecuador
| | - L M Nunes
- Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, Faro, Portugal
| | - T O Ferreira
- Departamento de Ciencia do Solo, Escola Superior de Agronomia Luiz Queiroz (ESALQ), Universidade de Sao Paulo, Brazil
| | - J Ruales
- Departamento de Ciencia de los Alimentos y Biotecnología, Escuela Politécnica Nacional, Quito, Ecuador
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Stefanowicz AM, Stanek M, Woch MW, Kapusta P. The accumulation of elements in plants growing spontaneously on small heaps left by the historical Zn-Pb ore mining. Environ Sci Pollut Res Int 2016; 23:6524-6534. [PMID: 26635220 PMCID: PMC4820495 DOI: 10.1007/s11356-015-5859-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 11/23/2015] [Indexed: 05/30/2023]
Abstract
The study evaluated the levels of nine metals, namely Ca, Cd, Fe, K, Mg, Mn, Pb, Tl, and Zn, in soils and tissues of ten plant species growing spontaneously on heaps left by historical mining for Zn-Pb ores. The concentrations of Cd, Pb, Tl, and Zn in heap soils were much higher than in control soils. Plants growing on heaps accumulated excessive amounts of these elements in tissues, on average 1.3-52 mg Cd kg(-1), 9.4-254 mg Pb kg(-1), 0.06-23 mg Tl kg(-1) and 134-1479 mg Zn kg(-1) in comparison to 0.5-1.1 mg Cd kg(-1), 2.1-11 mg Pb kg(-1), 0.02-0.06 mg Tl kg(-1), and 23-124 mg Zn kg(-1) in control plants. The highest concentrations of Cd, Pb, and Zn were found in the roots of Euphorbia cyparissias, Fragaria vesca, and Potentilla arenaria, and Tl in Plantago lanceolata. Many species growing on heaps were enriched in K and Mg, and depleted in Ca, Fe, and Mn. The concentrations of all elements in plant tissues were dependent on species, organ (root vs. shoot), and species-organ interactions. Average concentrations of Ca, K, and Mg were generally higher in shoots than in roots or similar in the two organs, whereas Cd, Fe, Pb, Tl, and Zn were accumulated predominantly in the roots. Our results imply that heaps left by historical mining for Zn-Pb ores may pose a potential threat to the environment and human health.
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Affiliation(s)
- Anna M. Stefanowicz
- />W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, 31-512 Kraków, Poland
| | - Małgorzata Stanek
- />W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, 31-512 Kraków, Poland
| | - Marcin W. Woch
- />Institute of Biology, Pedagogical University of Kraków, Podchorążych 2, 31-054 Kraków, Poland
| | - Paweł Kapusta
- />W. Szafer Institute of Botany, Polish Academy of Sciences, Lubicz 46, 31-512 Kraków, Poland
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