International Journal of Phytoremediation最新文献

Responses of glyoxalase system, ascorbate-glutathione cycle, and antioxidant enzymes in Pontederia cordata to lead stress and its capacity to remove lead. Pontederia cordata 中的乙二醛酶系统、抗坏血酸-谷胱甘肽循环和抗氧化酶对铅胁迫的反应及其除铅能力。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2024-11-08 DOI: 10.1080/15226514.2024.2421362

Jianpan Xin, Sisi Ma, Runan Tian

{"title":"Responses of glyoxalase system, ascorbate-glutathione cycle, and antioxidant enzymes in Pontederia cordata to lead stress and its capacity to remove lead.","authors":"Jianpan Xin, Sisi Ma, Runan Tian","doi":"10.1080/15226514.2024.2421362","DOIUrl":"https://doi.org/10.1080/15226514.2024.2421362","url":null,"abstract":"A hydroponic experiment was conducted to investigate the variations in membrane permeabilities, chlorophyll contents, antioxidase activities, the ascorbic acid (AsA)-glutathione (GSH) cycle, and the glyoxalase system in the leaves of Pontederia cordata with 0 ∼ 15.0 mg L-1 lead ion (Pb2+) exposure. The concentrations of Pb2+ accumulated in the plant roots, stems, and leaves were also evaluated. After 7 days of exposure, the plants maintained normal growth, and there was a significant increase in ascorbate peroxidase and dehydroascorbate reductase activities. With 5.0 mg L-1 Pb2+ exposure for 28 days, nearly 66.36% of Pb2+ accumulated in the roots, while excess Pb2+ immobilized in the leaves was not observed. Exposure to 10.0 and 15.0 mg L-1 Pb2+ for 28 days significantly increased Pb2+ contents in the leaves. This led to decrease in chlorophyll a, b, and carotenoid contents, and to increase in the methylglyoxal content in the leaves. With 10 and 15 mg L-1 Pb2+ exposure, NPT and PCs contents in leaves increased. however, the glyoxalase system did not function well in the plant tolerant to Pb2+ at higher concentrations. The AsA-GSH cycle did not cooperate with the glyoxalase system in the plant defense against Pb2+ exposure in the present investigation.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142603714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hyperaccumulation of metal in the apoplast contributes to the tolerance of the phytoremediator Pistia stratiotes L. to manganese-contaminated water. 金属在细胞质中的超积累有助于植物修复者 Pistia stratiotes L. 对锰污染水的耐受性。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2024-11-07 DOI: 10.1080/15226514.2024.2422462

Daniel G Coelho, Vinicius M Silva, Claudio S Marinato, Pedro H S Neves, Antonio A P Gomes Filho, Fernanda S Farnese, Wagner L Araújo, Juraci A Oliveira

{"title":"Hyperaccumulation of metal in the apoplast contributes to the tolerance of the phytoremediator Pistia stratiotes L. to manganese-contaminated water.","authors":"Daniel G Coelho, Vinicius M Silva, Claudio S Marinato, Pedro H S Neves, Antonio A P Gomes Filho, Fernanda S Farnese, Wagner L Araújo, Juraci A Oliveira","doi":"10.1080/15226514.2024.2422462","DOIUrl":"10.1080/15226514.2024.2422462","url":null,"abstract":"Phytoremediation of manganese (Mn)-contaminated water requires the selection of Mn-tolerant species. This study reports on physiological changes and Mn bioaccumulation in the aquatic macrophyte Pistia stratiotes cultivated under various MnCl2 concentrations: control, 80, 340, 600, 1000, 2000, and 4000 µM. Few visual symptoms of Mn toxicity, such as chlorosis, were observed after 10 days, especially in plants treated with 2000 and 4000 µM MnCl2. High Mn accumulation was recorded, with maximum values of 23,700 and 24,600 µg g-1 DW in the shoots and roots, respectively, at 4000 µM Mn, contrasting with 825.01 and 1587.53 µg g-1 DW in control plants. Cellular fractioning showed that Mn in shoots and roots was mainly associated with the cell wall, with approximately 90% of the Mn in roots detected in the apoplast. There were no significant changes in net CO2 assimilation or respiratory rates after 5 and 10 days of Mn exposure. These results demonstrate that P. stratiotes is a Mn hyperaccumulator species with excellent phytoremediation potential, as shown by its high bioaccumulation capacity and its ability to maintain photosynthetic efficiency under Mn stress.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142590983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In situ bioaugmented phytoremediation of cadmium and crude oil co-contaminated soil by Ocimum gratissimum in association with PGPR Micrococcus luteus WN01. 欧芹与 PGPR 微球菌黄体 WN01 共同对镉和原油共污染土壤进行原位生物增强植物修复。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2024-11-06 DOI: 10.1080/15226514.2024.2415535

Pem Choden, Toemthip Poolpak, Prayad Pokethitiyook, Kwang Mo Yang, Maleeya Kruatrachue

{"title":"In situ bioaugmented phytoremediation of cadmium and crude oil co-contaminated soil by Ocimum gratissimum in association with PGPR Micrococcus luteus WN01.","authors":"Pem Choden, Toemthip Poolpak, Prayad Pokethitiyook, Kwang Mo Yang, Maleeya Kruatrachue","doi":"10.1080/15226514.2024.2415535","DOIUrl":"https://doi.org/10.1080/15226514.2024.2415535","url":null,"abstract":"Heavy metals and petroleum oil are the two most important contaminants in the environment. Currently, phytoremediation is regarded as an effective and affordable solution that allows the attenuation of toxic pollutants through the use of plants. Not many studies are carried out regarding the use of aromatic plants capable of remediating soil that is co-contaminated by heavy metal and petroleum hydrocarbons. A pot experiment was conducted to investigate the influence of cadmium-resistant PGPR Micrococcus luteus on the phytoremediation efficiency of Ocimum gratissimum in Cd and petroleum co-contaminated soil. The plants were harvested after 60 days of treatment and their growth and biomass were determined. The accumulation of Cd in plant shoots and roots was determined. The residual petroleum hydrocarbon concentration during the 60 days of the phytoremediation experiment was determined using GC-FID. O. gratissimum with M. luteus showed the highest Cd accumulation (14.05 mg kg-1) and the highest reduction of TPH (46.64%). M. luteus ameliorated contaminant toxicity and promoted biomass production of O. gratissimum. These results demonstrated that O. gratissimum in combination with M. luteus can be efficiently used to remediate Cd and petroleum-co-contaminated soils.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142583055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Elicitors fortifies the plant resilience against metal and metalloid stress. 诱导剂可增强植物抵御金属和类金属胁迫的能力。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2024-11-03 DOI: 10.1080/15226514.2024.2420328

Parammal Faseela, Mathew Veena, Akhila Sen, K S Anjitha, K P Raj Aswathi, Palliyath Sruthi, Jos T Puthur

{"title":"Elicitors fortifies the plant resilience against metal and metalloid stress.","authors":"Parammal Faseela, Mathew Veena, Akhila Sen, K S Anjitha, K P Raj Aswathi, Palliyath Sruthi, Jos T Puthur","doi":"10.1080/15226514.2024.2420328","DOIUrl":"https://doi.org/10.1080/15226514.2024.2420328","url":null,"abstract":"This review addresses plant interactions with HMs, emphasizing defence mechanisms and the role of chelating agents, antioxidants and various elicitor molecules in mitigating metal toxicity in plants. To combat soil contamination with HMs, chelate assisted phytoextraction using application of natural or synthetic aminopolycarboxylic acids is an effective strategy. Plants also employ diverse signaling pathways, including hormones, calcium, reactive oxygen species, nitric oxide, and Mitogen-Activated Protein Kinases influencing gene expression and defence mechanisms to counter HM stress. Phytohormones enhance the enzymatic and non-enzymatic antioxidant defence mechanism and the level of secondary metabolites in plants when exposed to HM stress. Also it activates genes responsible for DNA repair mechanism. In addition, the plant hormones can also regulate the activity of several transporters of HMs, thereby preventing their entry into the cell. Elicitor molecules regulate metal and metalloid absorption, sequestration and transport in plants. Combining of different elicitors like jasmonic acid, calcium, salicylic acid etc. effectively mitigates metal and metalloid stress in plants. Moreover, microbes including bacteria and fungi, offer eco-friendly and efficient solution for HM remediation. Understanding these elicitors, microbes and various signaling pathways is crucial for developing strategies to enhance plant resilience to metal and metalloid stress.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142567308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pontederia crassipes utilization for dual phytoremediation and adsorption in greywater treatment: a techno-economic and sustainable approach. 在中水处理中利用 Pontederia crassipes 进行双重植物修复和吸附：一种技术经济和可持续的方法。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2024-11-01 Epub Date: 2024-07-05 DOI: 10.1080/15226514.2024.2374887

Morish Azabo, Amal Abdelhaleem, Manabu Fujii, Mahmoud Nasr

{"title":"Pontederia crassipes utilization for dual phytoremediation and adsorption in greywater treatment: a techno-economic and sustainable approach.","authors":"Morish Azabo, Amal Abdelhaleem, Manabu Fujii, Mahmoud Nasr","doi":"10.1080/15226514.2024.2374887","DOIUrl":"10.1080/15226514.2024.2374887","url":null,"abstract":"While phytoremediation has been widely employed for greywater treatment, this system suffers from the transfer of considerable amounts of surfactants to the aquatic environment through partially treated effluent and/or exhausted plant disposal. Hence, this study focuses on greywater phytoremediation followed by recycling the spent plant for preparing an adsorbent material used as post-treatment. P. crassipes was used to operate a phytoremediation unit under 23 °C, 60% relative humidity, plant density (5-30 g/L), dilution (0-50%), pH (4-10), and retention time (3-15 days). The optimum condition was 12.7 g/L density, 34.0% dilution, pH 8.4, and 13 days, giving chemical oxygen demand (COD), surfactant, and NH4-N removal efficiencies of 94.62%, 90.45%, and 88.09%, respectively. The exhausted plant was then thermally treated at 550 °C and 40 min to obtain biochar used as adsorbent to treat the phytoremediation effluent. The optimum adsorption process was biochar dosage of 1.51 g/L, pH of 2.1, and 137 min, providing a surfactant removal efficiency of 92.56%. The final discharge of this phytoremediation/adsorption combined process contained 8.30 mg/L COD, 0.23 mg/L surfactant, and 0.94 mg/L NH4+-N. Interestingly, this approach could be economically feasible with a payback period of 6.5 years, 14 USD net present value, and 8.6% internal rate of return.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141534430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on the optimal ratio of improved electrolytic manganese residue substrate about Pennisetum sinese Roxb growth effects. 关于改良电解锰渣基质对 Pennisetum sinese Roxb 生长影响的最佳配比研究

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2024-11-01 Epub Date: 2024-07-24 DOI: 10.1080/15226514.2024.2379610

Jian Yang, Zuyong Chen, Jie Dai, Fang Liu, Jian Zhu

{"title":"Research on the optimal ratio of improved electrolytic manganese residue substrate about Pennisetum sinese Roxb growth effects.","authors":"Jian Yang, Zuyong Chen, Jie Dai, Fang Liu, Jian Zhu","doi":"10.1080/15226514.2024.2379610","DOIUrl":"10.1080/15226514.2024.2379610","url":null,"abstract":"Electrolytic manganese slag (EMR) is a solid waste generated in the manganese hydrometallurgy process. It not only takes up significant land space but also contains Mn2+, which can lead to environmental contamination. There is a need for research on the treatment and utilization of EMR. Improved EMR substrate for Pennisetum sinese Roxb growth was determined in pot planting experiments. The study tested the effects of leaching solution, microorganisms, leaf cell structures, and growth data. Results indicated a substrate of 45% EMR, 40% phosphogypsum, 5% Hericium erinaceus fungi residue, 5% quicklime, and 5% dolomite sand significantly increased the available phosphorus content (135.54 ± 2.88 μg·g-1) by 17.95 times, compared to pure soil, and enhanced the relative abundance of dominant bacteria. After 240 days, the plant height (147.00 ± 0.52 cm), number of tillers (6), and aerial dry weight (144.00 ± 15.99g) of Pennisetum sinese Roxb increased by 5.81%, 200%, and 32.58%, respectively. Analyses of leaves and leaching solution revealed that the highest leaf Mn content (46.84 ± 2.91 μg·g-1) being 3.38 times higher than in pure soil, and the leaching solution Mn content (0.66 ± 0.13 μg·g-1) was lowest. Our study suggested P. sinese Roxb grown in an improved EMR substrate could be a feasible option for solidification treatment and resource utilization of EMR.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141758614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of monocultures and polycultures of Typha latifolia and Heliconia psittacorum on the treatment of river waters contaminated with landfill leachate/domestic wastewater in partially saturated vertical constructed wetlands. 在部分饱和的垂直建造湿地中，单株和多株栽培晚香玉（Typha latifolia）和鹤望兰（Heliconia psittacorum）对处理受垃圾填埋场渗滤液/生活废水污染的河水的影响。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2024-11-01 Epub Date: 2024-07-11 DOI: 10.1080/15226514.2024.2379007

Denisse Astrid Hernández-Castelán, Florentina Zurita, Oscar Marín-Peña, Erick Arturo Betanzo-Torres, Mayerlin Sandoval-Herazo, Jesús Castellanos-Rivera, Luis Carlos Sandoval Herazo

{"title":"Effect of monocultures and polycultures of Typha latifolia and Heliconia psittacorum on the treatment of river waters contaminated with landfill leachate/domestic wastewater in partially saturated vertical constructed wetlands.","authors":"Denisse Astrid Hernández-Castelán, Florentina Zurita, Oscar Marín-Peña, Erick Arturo Betanzo-Torres, Mayerlin Sandoval-Herazo, Jesús Castellanos-Rivera, Luis Carlos Sandoval Herazo","doi":"10.1080/15226514.2024.2379007","DOIUrl":"10.1080/15226514.2024.2379007","url":null,"abstract":"Partially Saturated Vertical Constructed Wetlands (PSV-CWs) are novel wastewater treatment systems that work through aerobic and anaerobic conditions that favor the removal of pollutants found in high concentrations, such as rivers contaminated with domestic wastewater and landfill leachate. The objective of the study was to evaluate the efficiency of PSV-CWs using monocultures and polycultures of Typha latifolia and Heliconia psittacorum to treat river waters contaminated with leachates from open dumps and domestic wastewater. Six experimental units of PSV-CWs were used; two were planted with Typha latifolia monoculture, two with Heliconia psittacorum monoculture and two with polycultures of both plants. The results indicated better organic matter and nitrogen removal efficiencies (p < 0.05) in systems with polycultures (TSS:95%, BOD5:83%, COD:89%, TN:82% and NH4+:99%). In general, the whole system showed high average removal efficiencies (TSS:93%, BOD5:79%, COD:85%, TN:79%, NH4+:98% and TP:85%). Regarding vegetation, both species developed better in units with monocultures, being Typha latifolia the one that reached a more remarkable development. However, both species showed high resistance to the contaminated environment. These results showed higher removals than those reported in the literature with conventional Free Flow Vertical Constructed Wetlands (FFV-CWs), so PSV-CWs could be a suitable option to treat this type of effluent.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141590314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spontaneous growth of plants enhances phytoextraction on abandoned coal mine wastes in Central Alborz coalfield, Iran. 植物的自发生长提高了伊朗中部阿尔博兹煤田废弃煤矿废料的植物萃取能力。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2024-11-01 Epub Date: 2024-07-12 DOI: 10.1080/15226514.2024.2378217

Nateq Lashkari Sanami, Jamshid Ghorbani, Ghorban Vahabzadeh, Seyed Mohammad Hodjati, Babak Motesharezadeh

{"title":"Spontaneous growth of plants enhances phytoextraction on abandoned coal mine wastes in Central Alborz coalfield, Iran.","authors":"Nateq Lashkari Sanami, Jamshid Ghorbani, Ghorban Vahabzadeh, Seyed Mohammad Hodjati, Babak Motesharezadeh","doi":"10.1080/15226514.2024.2378217","DOIUrl":"10.1080/15226514.2024.2378217","url":null,"abstract":"Coal mining disperses heavy metals into the environment, necessitating the identification of metal-tolerant plants for ecosystem restoration. This study evaluated the phytoremediation potential of plant species in abandoned coal wastes in northern Iran. Pollution indices indicated moderate contamination of Cu, Ni, V, Zn, Pb, Cr, and As in coal wastes. The plants varied in their ability to accumulate and translocate these metals, with most showing efficient root-to-shoot translocation. Artemisia scoparia (41.06 mg.kg-1) and Capparis spinosa (42.48 mg.kg-1) were effective for Cu phytoextraction. Most species, notably Cynodon dactylon (3.4 mg.kg-1), showed promise for phytoextraction of Cr. Capparis spinosa (7.67 mg.kg-1) exhibited potential for Pb phytoextraction. Most plants, particularly Hordeum vulgare and Melica persica, were effective phytoextractors of Ni. Sylibum marianum accumulated V beyond phytotoxic levels. Chenopodium album and Glaucium fimbriligerum were identified as phytoextractors of Zn while Cynodon dactylon and Hordeum vulgare, accumulating >100 mg.kg-1 Zn in roots, showed potential for phytostabilization. Sylibum marianum and Glaucium fimbriligerum, acted as excluders for As. Kochia prostrata and Artemisia aucheri were excluders for Cu, Cr, Ni, and Pb. This study provided the role of multiple indigenous plants, including perennials and annuals with diverse life forms, in metal extraction and stabilization for sustainable coal waste management.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141599869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Soil amendment-assisted phytoremediation with ryegrass offers a promising approach to mitigate environmental health concerns. 利用黑麦草进行土壤改良辅助植物修复，为缓解环境健康问题提供了一种前景广阔的方法。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2024-11-01 Epub Date: 2024-07-30 DOI: 10.1080/15226514.2024.2380039

Albert Kobina Mensah

{"title":"Soil amendment-assisted phytoremediation with ryegrass offers a promising approach to mitigate environmental health concerns.","authors":"Albert Kobina Mensah","doi":"10.1080/15226514.2024.2380039","DOIUrl":"10.1080/15226514.2024.2380039","url":null,"abstract":"This study aimed to examine the potential of soil amendment-assisted phytoremediation using ryegrass in reclaiming abandoned gold mine soil in southwestern Ghana, with a specific focus on the soil contamination hazards associated with metals and metalloids. A pot experiment lasting 60 days was carried out to assess the efficacy of soil amendments, such as compost, iron oxide, and poultry manure, in mitigating environmental hazards. Three soil contamination indices (soil contamination = CF, enrichment factor = ER, and pollution load index = PLI) were used to calculate the extent of soil contamination, enrichment, and pollution of the sites with Co, Hg, Ni, Mo, Se, Sb, and Pb. The findings show that Hg made the greatest contribution (with a maximum soil CF of 18.0) to the overall PLI, with a maximum value of 74.4. The sites were averagely and consequently enriched with toxic elements in the decreasing order: Ni (ER = 33.3) > Mo (20.5) > Sb (14.1) > Pb (11.0) > Hg (7.9) > Se (2.1). The bioaccumulation factor (BCF > 1) suggests that ryegrass has the ability to phytostabilize Co, Hg, Mo, and Ni. This means that the plant may store these elements in its roots, potentially decreasing their negative effects on the environment and human health. Ultimately, the addition of combined manure with iron oxides might have augmented the sequestration of these metals in the root. The elements may have accumulated through sorption on manure or Fe surfaces, dissolution from watering the plants in the pot, or mineralization of organic manure. Thus, ryegrass has shown potential for phytostabilisation of Co, Hg, Mo, and Ni when assisted with a combination of manure and iron oxides; and can consequently mitigate the environmental and human health impacts.","PeriodicalId":14235,"journal":{"name":"International Journal of Phytoremediation","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141855529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ectopic expression of the yeast Mn²⁺ transporter SMF2 enhances tolerance and resistance to cadmium and arsenic in transgenic Arabidopsis. 异位表达酵母 Mn2+ 转运体 SMF2 可增强转基因拟南芥对镉和砷的耐受性和抗性。

IF 3.4 4区环境科学与生态学

International Journal of Phytoremediation Pub Date : 2024-11-01 Epub Date: 2024-07-08 DOI: 10.1080/15226514.2024.2373974

Jiangbo Guo, Hanyang Liu, Yang Xu, Lu Li, Cuihua Xin

引用次数: 0