keyword
MENU ▼
Read by QxMD icon Read
search

phytoremediation

keyword
https://www.readbyqxmd.com/read/28236196/erratum-to-genetic-and-biochemical-characterization-of-rhizobacterial-strains-and-their-potential-use-in-combination-with-chelants-for-assisted-phytoremediation
#1
Angela Cicatelli, Francesco Guarino, Enrico Baldan, Stefano Castiglione
No abstract text is available yet for this article.
February 24, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28223006/complete-genome-sequence-of-the-drought-resistance-promoting-endophyte-klebsiella-sp-ltgpaf-6f
#2
Lei Zhang, Jun Zhong, Hao Liu, Kaiyun Xin, Chaoqiong Chen, Qiqi Li, Yahong Wei, Yao Wang, Fei Chen, Xihui Shen
Bacterial endophytes with capacity to promote plant growth and improve plant tolerance against biotic and abiotic stresses have importance in agricultural practice and phytoremediation. A plant growth-promoting endophyte named Klebsiella sp. LTGPAF-6F, which was isolated from the roots of the desert plant Alhagi sparsifolia in north-west China, exhibits the ability to enhance the growth of wheat under drought stress. The complete genome sequence of this strain consists of one circular chromosome and two circular plasmids...
February 13, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28217136/differential-cadmium-distribution-and-translocation-in-roots-and-shoots-related-to-hyper-tolerance-between-tall-fescue-and-kentucky-bluegrass
#3
Qin Dong, PeiXian Xu, ZhaoLong Wang
Phytoremediation efficiency mainly depends upon mechanisms in the uptake and translocation of soil contaminants. Cadmium (Cd) distribution and translocation in roots and shoots of tall fescue (Festuca arundinacea) and Kentucky bluegrass (Poa pratensis) were observed using fluorescence spectroscopy with a laser confocal scanning microscope. No difference in root Cd accumulations was detected between these two turfgrass species. Kentucky bluegrass transported more Cd into the stele for root-to-shoot translocation and resulted in significantly higher Cd concentration in leaves...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28212517/phytoremediation-of-dyes-using-lagerstroemia-speciosa-mediated-silver-nanoparticles-and-its-biofilm-activity-against-clinical-strains-pseudomonas-aeruginosa
#4
V Sai Saraswathi, Neethu Kamarudheen, K V BhaskaraRao, K Santhakumar
The aim of this study was to prepare silver nanoparticles by a green method using the aqueous leaves extract of Lagerstroemia speciosa. The prepared silver nanoparticles were characterized, studied for its photocatalytic and biofilm inhibition studies. The maximum absorbance peak was found at 427nm and thus confirming the formation of silver nanoparticles. The average size of silver nanoparticles synthesized was found to be 12nm using XRD and it was spherical in shape. The nanoparticles synthesized was investigated for photocatalytic activity for to two different dye molecules, methyl orange and methylene blue showing 310 and 290min degradation time respectively...
February 10, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28212511/arsenic-hyperaccumulator-pteris-vittata-efficiently-solubilized-phosphate-rock-to-sustain-plant-growth-and-as-uptake
#5
Jing-Wei Fu, Xue Liu, Yong-He Han, Hanyi Mei, Yue Cao, Letuzia M de Oliveira, Yungen Liu, Bala Rathinasabapathi, Yanshan Chen, Lena Q Ma
Phosphorus (P) is one of the most important nutrients for phytoremediation of arsenic (As)-contaminated soils. In this study, we demonstrated that As-hyperaccumulator Pteris vittata was efficient in acquiring P from insoluble phosphate rock (PR). When supplemented with PR as the sole P source in hydroponic systems, P. vittata accumulated 49% and 28% higher P in the roots and fronds than the -P treatment. In contrast, non-hyperaccumulator Pteris ensiformis was unable to solubilize P from PR. To gain insights into PR solubilization by plants, organic acids in plant root exudates were analyzed by HPLC...
January 31, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28204874/effects-of-calcium-at-toxic-concentrations-of-cadmium-in-plants
#6
REVIEW
Danlian Huang, Xiaomin Gong, Yunguo Liu, Guangming Zeng, Cui Lai, Hassan Bashir, Lu Zhou, Dafei Wang, Piao Xu, Min Cheng, Jia Wan
This review provides new insight that calcium plays important roles in plant growth, heavy metal accumulation and translocation, photosynthesis, oxidative damage and signal transduction under cadmium stress. Increasing heavy metal pollution problems have raised word-wide concerns. Cadmium (Cd), being a highly toxic metal, poses potential risks both to ecosystems and human health. Compared with conventional technologies, phytoremediation, being cost-efficient, highly stable and environment-friendly, is believed to be a promising green technology for Cd decontamination...
February 15, 2017: Planta
https://www.readbyqxmd.com/read/28195353/screening-of-cadmium-and-copper-phytoremediation-ability-of-tagetes-erecta-using-biochemical-parameters-and-sem-edx-analysis
#7
Sunayana Goswami, Suchismita Das
Tagetes erecta could thrive well in phytotoxic levels of Cd (50-300 mg kg(-1) ) and Cu (150-400 mg kg(-1) ) for 21 days. It accumulated high metal contents in its above ground tissues (3675 mg Cd kg(-1) DW and 3948 mg Cu kg(-1) DW), showed greater root to shoot translocation and high extraction coefficient; all of which pointed towards its potential as a hyperaccumulator. Both Cd and Cu stress reduced the plant biomass, foliar area, and number. Besides, there were significant declines in pigment contents as well as boosts in lipid peroxidation levels...
February 13, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28188207/use-of-endophytic-and-rhizosphere-bacteria-to-improve-phytoremediation-of-arsenic-contaminated-industrial-soils-by-autochthonous-betula-celtiberica
#8
Victoria Mesa, Alejandro Navazas, Ricardo González-Gil, Aida González, Nele Weyens, Béatrice Lauga, Jose Luis R Gallego, Jesús Sánchez, Ana Isabel Peláez
The aim of the study was to investigate the potential of indigenous arsenic-tolerant bacteria to enhance arsenic phytoremediation by autochthonous pseudometallophyte Betula celtiberica The first goal was to perform an initial analysis of the entire rhizosphere and endophytic bacterial communities of the above-named accumulator plant, including the cultivable bacterial species. B. celtiberica's microbiome was dominated by taxa related to Flavobacteriales, Burkholderiales, and Pseudomonadales, specially the Pseudomonas and Flavobacterium genera...
February 10, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28185852/pyrolysis-for-exploitation-of-biomasses-selected-for-soil-phytoremediation-characterization-of-gaseous-and-solid-products
#9
Paola Giudicianni, Stefania Pindozzi, Corinna Maria Grottola, Fernando Stanzione, Salvatore Faugno, Massimo Fagnano, Nunzio Fiorentino, Raffaele Ragucci
Biomasses to be used in the phytoremediation process are generally selected to match agronomic parameters and heavy metals uptake ability. A proper selection can be made greatly effective if knowledge of the properties of the residual char from pyrolysis is available to identify possible valorization routes. In this study a comparative analysis of the yields and characteristics of char obtained from slow pyrolysis of five uncontaminated biomasses (Populus nigra, Salix alba, Fraxinus oxyphylla, Eucalyptus occidentalis and Arundo donax) was carried out under steam atmosphere to better develop char porosity...
February 7, 2017: Waste Management
https://www.readbyqxmd.com/read/28185077/phytochelatin-2-accumulates-in-roots-of-the-seagrass-enhalus-acoroides-collected-from-sediment-highly-contaminated-with-lead
#10
Xuan-Vy Nguyen, Khanh-Hy Le-Ho, Jutta Papenbrock
Phytochelatins (PCs), the heavy metal-binding peptides of plants, play a main function in heavy metal detoxification. In this study, Enhalus acoroides samples collected at six distinct seagrass beds from the coast of Khanh Hoa province, Viet Nam, were evaluated for their PCs. The contents of different PCs in each organ including leaf, rhizome, and root were determined by using HPLC analysis. Significant differences of PC2 contents among specific organs and their relation were tested by ANOVA, Tukey test, and Pearson's correlation...
February 9, 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/28178583/detection-of-polycyclic-aromatic-hydrocarbons-pahs-in-medicago-sativa-l-by-fluorescence-microscopy
#11
Wilber S Alves, Evelin A Manoel, Noemi S Santos, Rosane O Nunes, Giselli C Domiciano, Marcia R Soares
Green technologies, such as phytoremediation, are effective for removing organic pollutants derived from oil and oil products, including polycyclic aromatic hydrocarbons (PAHs). Given the increasing popularity of these sustainable remediation techniques, methods based on fluorescence microscopy and multiphoton microscopy for the environmental monitoring of such pollutants have emerged in recent decades as effective tools for phytoremediation studies aimed at understanding the fate of these contaminants in plants...
January 19, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28177413/selenium-biofortification-and-phytoremediation-phytotechnologies-a-review
#12
Michela Schiavon, Elizabeth A H Pilon-Smits
The element selenium (Se) is both essential and toxic for most life forms, with a narrow margin between deficiency and toxicity. Phytotechnologies using plants and their associated microbes can address both of these problems. To prevent Se toxicity due to excess environmental Se, plants may be used to phytoremediate Se from soil or water. To alleviate Se deficiency in humans or livestock, crops may be biofortified with Se. These two technologies may also be combined: Se-enriched plant material from phytoremediation could be used as green fertilizer or as fortified food...
January 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28167031/opinion-taking-phytoremediation-from-proven-technology-to-accepted-practice
#13
REVIEW
Karen E Gerhardt, Perry D Gerwing, Bruce M Greenberg
Phytoremediation is the use of plants to extract, immobilize, contain and/or degrade contaminants from soil, water or air. It can be an effective strategy for on site and/or in situ removal of various contaminants from soils, including petroleum hydrocarbons (PHC), polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), solvents (e.g., trichloroethylene [TCE]), munitions waste (e.g., 2,4,6-trinitrotoluene [TNT]), metal(loid)s, salt (NaCl) and radioisotopes. Commercial phytoremediation technologies appear to be underutilized globally...
March 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28165761/bio-and-phytoremediation-of-total-petroleum-hydrocarbons-tph-under-various-conditions
#14
Patrick McIntosh, Cristian P Schulthess, Yulia A Kuzovkina, Karl Guillard
Remediation of contaminated soils is often studied using fine textured soils rather than low-fertility sandy soils, and few studies focus on recontamination events. This study compared aerobic and anaerobic treatments for remediation of freshly introduced used motor oil on a sandy soil previously phytoremediated and bioacclimated (microorganisms already adapted in the soil environment) with some residual total petroleum hydrocarbon (TPH) contamination. Vegetated and unvegetated conditions to remediate anthropogenic fill containing residual TPH that was spiked with non-aqueous phase liquids (NAPLs) were evaluated in a 90-day greenhouse pot study...
February 6, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28165756/enhanced-phytoremediation-of-soils-contaminated-with-pahs-by-arbuscular-mycorrhiza-and-rhizobium
#15
Cheng-Gang Ren, Cun-Cui Kong, Bian Bian, Wei Liu, Yan Li, Yong-Ming Luo, Xie Zhi-Hong
Greenhouse experiment was conducted to evaluate the potential effectiveness of a legume (Sesbania cannabina), arbuscular mycorrhizal fungi (AMF) (Glomus mosseae) and rhizobia (Ensifer sp.) symbiosis for remediation of PAHs in spiked soil. AMF and rhizobia had a beneficial impact on each other in the triple symbiosis. AMF and/or rhizobia significantly increased plant biomass and PAHs accumulation in plants. The highest PAHs dissipation was observed in plant + AMF + rhizobia treated soil, in which >97 and 85-87% of phenanthrene and pyrene, respectively, had been degraded, whereas 81-85% and 72-75% had been degraded in plant-treated soil...
February 6, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28161864/phosphate-and-ammonium-adsorption-of-the-modified-biochar-based-on-phragmites-australis-after-phytoremediation
#16
Yu-Peng Gong, Zhi-Yi Ni, Zhao-Zhao Xiong, Li-Hua Cheng, Xin-Hua Xu
To effectively remove N and P from eutrophic water, the Phragmites australis after phytoremediation was harvested for preparation of modified biochar. The MgCl2-modified biochar (MPB) was successfully synthesized at 600 °C under N2 circumstance. The physiochemical characteristics, the adsorption capacity for N and P in the simulated solution, and their adsorption mechanism of MPB were then determined, followed by the treatment of eutrophic water of Tai lake and its inflow river from agricultural source. The results demonstrated that the MPB presented high adsorption capacity to both simulated NH4-N and PO4-P with the maximum adsorption capacity exceeding 30 and 100 mg g(-1), respectively...
February 4, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28159109/multi-residue-determination-of-micropollutants-in-phragmites-australis-from-constructed-wetlands-using-microwave-assisted-extraction-and-ultra-high-performance-liquid-chromatography-tandem-mass-spectrometry
#17
Bruce Petrie, Benjamin D Smith, Jane Youdan, Ruth Barden, Barbara Kasprzyk-Hordern
In constructed wetlands micropollutants can be removed from water by phytoremediation. However, micropollutant uptake and metabolism by plants here is poorly understood due to the lack of good analytical approaches. Reported herein is the first methodology developed and validated for the multi-residue determination of 81 micropollutants (pharmaceuticals, personal care products and illicit drugs) in the emergent macrophyte Phragmites australis. The method involved extraction by microwave accelerated extraction (MAE), clean-up using off-line solid phase extraction and analysis by ultra-high-performance liquid chromatography tandem mass spectrometry...
March 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28156131/variations-in-several-morphological-characteristics-and-cd-pb-accumulation-capacities-among-different-ecotypes-of-torpedograss-responding-to-cd-pb-stresses
#18
Guijuan Gao, Xiaolong Zeng, Zhidan Li, Aikui Chen, Zhongyi Yang
Torpedograss (Panicum repens) has been recognized as a useful plant species for phytoremediation of water-level-fluctuation zones which is a worldwide challenge. In this study, 10 ecotypes collected from tropical zone and flooded habitats (Group-A) and subtropical zone and drought habitats (Group-B) were used to clarify their responses to Cd-Pb stresses and effects of long-term adaptation on their morphological features and Cd-Pb accumulation capacities. Branch capacity, shoot and root biomasses of Group-A under control were smaller than those of Group-B, while the opposite results were observed under Cd-Pb stresses...
February 3, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28144868/phytoremediation-of-urban-soils-contaminated-with-trace-metals-using-noccaea-caerulescens-comparing-non-metallicolous-populations-to-the-metallicolous-ganges-in-field-trials
#19
Arnaud Jacobs, Thomas Drouet, Thibault Sterckeman, Nausicaa Noret
Urban soil contamination with trace metals is a major obstacle to the development of urban agriculture as crops grown in urban gardens are prone to accumulate trace metals up to toxic levels for human consumption. Phytoextraction is considered as a potentially cost-effective alternative to conventional methods such as excavation. Field trials of phytoextraction with Noccaea caerulescens were conducted on urban soils contaminated with Cd, Cu, Pb, and Zn (respectively around 2, 150-200, 400-500, and 400-700 μg g(-1) of dry soil)...
January 31, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28140388/de-novo-transcriptome-assemblies-of-four-accessions-of-the-metal-hyperaccumulator-plant-noccaea-caerulescens
#20
Daniel Blande, Pauliina Halimaa, Arja I Tervahauta, Mark G M Aarts, Sirpa O Kärenlampi
Noccaea caerulescens of the Brassicaceae family has become the key model plant among the metal hyperaccumulator plants. Populations/accessions of N. caerulescens from geographic locations with different soil metal concentrations differ in their ability to hyperaccumulate and hypertolerate metals. Comparison of transcriptomes in several accessions provides candidates for detailed exploration of the mechanisms of metal accumulation and tolerance and local adaptation. This can have implications in the development of plants for phytoremediation and improved mineral nutrition...
January 31, 2017: Scientific Data
keyword
keyword
89720
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"