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https://www.readbyqxmd.com/read/29333379/broccoli-brassica-oleracea-reduces-oxidative-damage-to-pancreatic-tissue-and-combats-hyperglycaemia-in-diabetic-rats
#1
Sithara Suresh, Mostafa Ibrahim Waly, Mohammad Shafiur Rahman, Nejib Guizani, Mohamed Abdullah Badar Al-Kindi, Halima Khalfan Ahmed Al-Issaei, Sultan Nasser Mohd Al-Maskari, Bader Rashid Said Al-Ruqaishi, Ahmed Al-Salami
Oxidative stress plays a pivotal role in the development of diabetes and hyperglycaemia. The protective effects of natural extracts against diabetes are mainly dependent on their antioxidant and hypoglycaemic properties. Broccoli (Brassica oleracea) exerts beneficial health effects in several diseases including diabetes; however, the mechanism has not been elucidated yet. The present study was carried out to evaluate the potential hypoglycaemic and antioxidant properties of aqueous broccoli extracts (BEs) in diabetic rats...
December 2017: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/29332274/callitriche-cophocarpa-water-starwort-proteome-under-chromate-stress-evidence-for-induction-of-a-quinone-reductase
#2
Paweł Kaszycki, Aleksandra Dubicka-Lisowska, Joanna Augustynowicz, Barbara Piwowarczyk, Wojciech Wesołowski
Chromate-induced physiological stress in a water-submerged macrophyte Callitriche cophocarpa Sendtn. (water starwort) was tested at the proteomic level. The oxidative stress status of the plant treated with 1 mM Cr(VI) for 3 days revealed stimulation of peroxidases whereas catalase and superoxide dismutase activities were similar to the control levels. Employing two-dimensional electrophoresis, comparative proteomics enabled to detect five differentiating proteins subjected to identification with mass spectrometry followed by an NCBI database search...
January 13, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29331851/rhizospheric-microorganisms-as-a-solution-for-the-recovery-of-soils-contaminated-by-petroleum-a-review
#3
REVIEW
Jéssica Janzen Dos Santos, Leila Teresinha Maranho
Petroleum is currently the world's main energy source, and its demand is expected to increase in coming years. Its intense exploitation can lead to an increase in the number of environmental accidents, such as spills and leaks, and an increase in the generation of environmental liabilities resulting from refining. Due to its hydrophobic characteristics and slow process of biodegradation, petroleum can remain in the environment for a long time and its toxicity can cause a negative impact on both terrestrial and aquatic ecosystems, with the main negative effects related to its carcinogenic potential for both animals and humans...
January 11, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29330533/soil-contamination-alters-the-willow-root-and-rhizosphere-metatranscriptome-and-the-root-rhizosphere-interactome
#4
Etienne Yergeau, Julien Tremblay, Simon Joly, Michel Labrecque, Christine Maynard, Frederic E Pitre, Marc St-Arnaud, Charles W Greer
Phytoremediation using willows is thought to be a sustainable alternative to traditional remediation techniques involving excavation, transport, and landfilling. However, the complexity of the interaction between the willow and its associated highly diverse microbial communities makes the optimization of phytoremediation very difficult. Here, we have sequenced the rhizosphere metatranscriptome of four willow species and the plant root metatranscriptome for two willow species growing in petroleum hydrocarbon-contaminated and non-contaminated soils on a former petroleum refinery site...
January 12, 2018: ISME Journal
https://www.readbyqxmd.com/read/29328936/pyrolysis-and-reutilization-of-plant-residues-after-phytoremediation-of-heavy-metals-contaminated-sediments-for-heavy-metals-stabilization-and-dye-adsorption
#5
Xiaomin Gong, Danlian Huang, Yunguo Liu, Guangming Zeng, Rongzhong Wang, Jingjing Wei, Chao Huang, Piao Xu, Jia Wan, Chen Zhang
This study aimed to investigate the effect of pyrolysis on the stabilization of heavy metals in plant residues obtained after phytoremediation. Ramie residues, being collected after phytoremediation of metal contaminated sediments, were pyrolyzed at different temperatures (300-700 °C). Results indicated that pyrolysis was effective in the stabilization of Cd, Cr, Zn, Cu, and Pb in ramie residues by converting the acid-soluble fraction of metals into residual form and decreasing the TCLP-leachable metal contents...
January 5, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29322395/lead-zinc-and-cadmium-uptake-accumulation-and-phytoremediation-by-plants-growing-around-tang-e-douzan-lead-zinc-mine-iran
#6
Reza Hesami, Azam Salimi, Seyed Majid Ghaderian
In the current study, soils of Tang-e Douzan mine, located in Isfahan, Iran, were collected and analyzed for soluble, exchangeable, and total amounts of Pb, Zn, Cd, Ca, and Mg. The maximum Pb, Zn, Cd, Ca, and Mg concentrations in soils were 2500, 1100, 59, 43,800, and 1320 mg/kg for total metals, 86, 83, 6.3, 4650, and 48 mg/kg for their exchangeable fractions, and 59, 3.7, 0.53, 430, and 6.4 mg/kg for their soluble fractions, respectively. All specimens collected, including 69 plant species, were analyzed for Pb, Zn, and Cd...
January 10, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29302994/environmental-impact-and-bioremediation-of-seleniferous-soils-and-sediments
#7
Shrutika L Wadgaonkar, Yarlagadda V Nancharaiah, Giovanni Esposito, Piet N L Lens
Selenium concentrations in the soil environment are directly linked to its transfer in the food chain, eventually causing either deficiency or toxicity associated with several physiological dysfunctions in animals and humans. Selenium bioavailability depends on its speciation in the soil environment, which is mainly influenced by the prevailing pH, redox potential, and organic matter content of the soil. The selenium cycle in the environment is primarily mediated through chemical and biological selenium transformations...
January 5, 2018: Critical Reviews in Biotechnology
https://www.readbyqxmd.com/read/29289006/soil-plant-relationships-and-contamination-by-trace-elements-a-review-of-twenty-years-of-experimentation-and-monitoring-after-the-aznalc%C3%A3-llar-sw-spain-mine-accident
#8
REVIEW
Paula Madejón, María T Domínguez, Engracia Madejón, Francisco Cabrera, Teodoro Marañón, José M Murillo
Soil contamination by trace elements (TE) is a major environmental problem and much research is done into its effects on ecosystems and human health, as well as into remediation techniques. The Aznalcóllar mine accident (April 1998) was a large-scale ecological and socio-economic catastrophe in the South of Spain. We present here a literature review that synthesizes the main results found during the research conducted at the affected area over the past 20years since the mine accident, focused on the soil-plant system...
December 27, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29287271/maize-root-culture-as-a-model-system-for-studying-azoxystrobin-biotransformation-in-plants
#9
Maheswor Gautam, Mohamed Elhiti, Inge S Fomsgaard
Hairy roots induced by Agrobacterium rhizogenes are well established models to study the metabolism of xenobiotics in plants for phytoremediation purposes. However, the model requires special skills and resources for growing and is a time-consuming process. The roots induction process alters the genetic construct of a plant and is known to express genes that are normally absent from the non-transgenic plants. In this study, we propose and establish a non-transgenic maize root model to study xenobiotic metabolism in plants for phytoremediation purpose using azoxystrobin as a xenobiotic compound...
December 26, 2017: Chemosphere
https://www.readbyqxmd.com/read/29277319/two-mulberry-phytochelatin-synthase-genes-confer-zinc-cadmium-tolerance-and-accumulation-in-transgenic-arabidopsis-and-tobacco
#10
Wei Fan, Qing Guo, ChangYing Liu, Xueqin Liu, Meng Zhang, Dingpei Long, Zhonghuai Xiang, Aichun Zhao
Phytochelatin synthase (PCS) is an enzyme involved in the synthesis of phytochelatins, cysteine-rich peptides which play a key role in heavy metal (HM) detoxification of plants. Mulberry (Morus L.), one of the most ecologically and economically important tree genera, has the potential to remediate HM-contaminated soils. However, genes involved in HM detoxification in Morus, such as the PCS genes, have not been identified and characterized. In this study, we identified two Morus notabilis PCS genes based on a genome-wide analysis of the Morus genome database...
December 22, 2017: Gene
https://www.readbyqxmd.com/read/29273991/augmentation-with-potential-endophytes-enhances-phytostabilization-of-cr-in-contaminated-soil
#11
Muhammad T Ahsan, Muhammad Najam-Ul-Haq, Abdul Saeed, Tanveer Mustafa, Muhammad Afzal
The contamination of soil with heavy metals is a major environmental problem worldwide. The combined use of plants and their associated microbes has gained popularity in recent years for their potential to remediate heavy metal-contaminated soil. In the current study, the effect that augmentation of soil with plant growth-promoting endophytes has on the phytostabilization of chromium (Cr)-contaminated soil was investigated. Three potential endophytic bacterial strains (Enterobacter sp. HU38, Microbacterium arborescens HU33, and Pantoea stewartii ASI11) were inoculated individually as well as in combination to Leptochloa fusca and Brachiaria mutica vegetated in Cr-contaminated soil...
December 22, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29261745/protonema-of-the-moss-funaria-hygrometrica-can-function-as-a-lead-pb-adsorbent
#12
Misao Itouga, Manabu Hayatsu, Mayuko Sato, Yuuri Tsuboi, Yukari Kato, Kiminori Toyooka, Suechika Suzuki, Seiji Nakatsuka, Satoshi Kawakami, Jun Kikuchi, Hitoshi Sakakibara
Water contamination by heavy metals from industrial activities is a serious environmental concern. To mitigate heavy metal toxicity and to recover heavy metals for recycling, biomaterials used in phytoremediation and bio-sorbent filtration have recently drawn renewed attention. The filamentous protonemal cells of the moss Funaria hygrometrica can hyperaccumulate lead (Pb) up to 74% of their dry weight when exposed to solutions containing divalent Pb. Energy-dispersive X-ray spectroscopy revealed that Pb is localized to the cell walls, endoplasmic reticulum-like membrane structures, and chloroplast thylakoids, suggesting that multiple Pb retention mechanisms are operating in living F...
2017: PloS One
https://www.readbyqxmd.com/read/29250721/annotation-and-characterization-of-cd-responsive-metal-transporter-genes-in-rapeseed-brassica-napus
#13
Xian Duo Zhang, Jin Guo Meng, Kai Xuan Zhao, Xi Chen, Zhi Min Yang
In higher plants, heavy metal transporters are responsible for metal uptake, translocation and homeostasis. These metals include essential metals such as zinc (Zn) or manganese (Mn) and non-essential metals like cadmium (Cd) or lead (Pb). Although a few heavy metal transporters have been well identified in model plants (e.g. Arabidopsis and rice), little is known about their functionality in rapeseed (Brassica napus). B. napus is an important oil crop ranking the third largest sources of vegetable oil over the world...
December 18, 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/29250085/metalaxyl-effects-on-antioxidant-defenses-in-leaves-and-roots-of-solanum-nigrum-l
#14
Alexandra de Sousa, Hamada AbdElgawad, Han Asard, Ana Pinto, Cristiano Soares, Simão Branco-Neves, Teresa Braga, Manuel Azenha, Samy Selim, Soad Al Jaouni, Fernanda Fidalgo, Jorge Teixeira
Overuse of pesticides has resulted in environmental problems, threating public health through accumulation in food chains. Phytoremediation is a powerful technique to clean up contaminated environments. However, it is necessary to unravel the metabolic mechanisms underlying phytoremediation in order to increase the efficiency of this process. Therefore, growth, physiological and biochemical responses in leaves and roots of Solanum nigrum L. exposed to the commonly used fungicide metalaxyl were investigated...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29248955/lead-concentrations-in-soils-and-some-wild-plant-species-along-two-busy-roads-in-pakistan
#15
Noreen Khalid, Mumtaz Hussain, Hillary S Young, Muhammad Ashraf, Mansoor Hameed, Rashid Ahmad
This study assessed the level of Pb in soil and five wild plant species (Calotropis procera, Datura alba, Parthenium hysterophorus, Cenchrus ciliaris and Ricinus communis) during all the four seasons. Two busy roads varying in age and traffic volume were selected i.e., Faisalabad-Sargodha road (FSR) and Pindi Bhattian to Lillah (M-2) in the Punjab, Pakistan. Results showed raised levels of Pb in both plants and soil samples along both roads. The range of Pb concentration in plants was 0.08-3.98 and 1.95-4.74 mg kg- 1 for soil...
December 16, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29247932/phytoremediation-potential-of-poplar-and-willow-species-in-small-scale-constructed-wetland-for-boron-removal
#16
Kubilay Yıldırım, Gözde Çıtır Kasım
Boron (B) pollution is an expanding environmental problem throughout the world due to intensive mining practices and extensive usage of B in agricultural chemicals and industrial products in recent years. The purpose of this study was to investigate B removal performance of four poplar and four willow species in small scale Constructed Wetland (CW). Rooted cuttings of tested species were treated with simulated wastewater having five elevated B concentrations (0.5, 5, 10, 20 and 40 ppm). All the tested species could resist up to 20 ppm wastewater B supply and could regrow from their roots in the soil having maximum 15 mg/kg B content...
December 7, 2017: Chemosphere
https://www.readbyqxmd.com/read/29241117/influence-of-direct-and-alternating-current-electric-fields-on-efficiency-promotion-and-leaching-risk-alleviation-of-chelator-assisted-phytoremediation
#17
Jie Luo, Limei Cai, Shihua Qi, Jian Wu, Xiaowen Sophie Gu
Direct and alternating current electric fields with various voltages were used to improve the decontamination efficiency of chelator assisted phytoremediation for multi-metal polluted soil. The alleviation effect of electric field on leaching risk caused by chelator application during phytoremediation process was also evaluated. Biomass yield, pollutant uptake and metal leaching retardation under alternating current (AC) and direct current (DC) electric fields were compared. The biomass yield of Eucalyptus globulus under AC fields with various voltages (2, 4 and 10 V) were 3...
December 11, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29240996/transfer-mechanism-uptake-kinetic-process-and-bioavailability-of-p-cu-cd-pb-and-zn-in-macrophyte-rhizosphere-using-dgt
#18
Shengrui Wang, Zhihao Wu, Jun Luo
The transfer-uptake-bioavailability of phosphorus (P), Cu, Cd, Zn and Pb in rhizosphere of Zizania latifolia (ZL) and Myriophyllum verticiilaturn (MV) cultivated in rhizoboxes in Lake Erhai (China) is investigated by DGT (diffusive gradients in thin films) technique. DGT induced fluxes in sediments (DIFS) model reveals that resupply ability (r), liable pool size in sediment solid (kd), kinetic parameter (k-1) or response time (Tc) control the diffusion-resupply characters of P and Cu (standing for four metals) in rhizosphere interface...
December 14, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29229530/trichoderma-harzianum-mtcc-5179-impacts-the-population-and-functional-dynamics-of-microbial-community-in-the-rhizosphere-of-black-pepper-piper-nigrum-l
#19
Palaniyandi Umadevi, Muthuswamy Anandaraj, Vivek Srivastav, Sailas Benjamin
Employing Illumina Hiseq whole genome metagenome sequencing approach, we studied the impact of Trichoderma harzianum on altering the microbial community and its functional dynamics in the rhizhosphere soil of black pepper (Piper nigrum L.). The metagenomic datasets from the rhizosphere with (treatment) and without (control) T. harzianum inoculation were annotated using dual approach, i.e., stand alone and MG-RAST. The probiotic application of T. harzianum in the rhizhosphere soil of black pepper impacted the population dynamics of rhizosphere bacteria, archae, eukaryote as reflected through the selective recruitment of bacteria [Acidobacteriaceae bacterium (p=1...
November 29, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/29228357/surfactant-and-heavy-metal-interaction-in-poplar-a-focus-on-sds-and-zn-uptake
#20
Erika C Pierattini, Alessandra Francini, Andrea Raffaelli, Luca Sebastiani
Surfactants are widely used detergent ingredients and, thanks to their chemical properties, they are applied for remediation of sites polluted by heavy metals and organic contaminants, both in soil flushing and in phytoremediation. However, their direct effects on tree physiology especially in consociation with heavy metal pollution, as well as their possible absorption by plants, have not been appropriately investigated. In order to evaluate plant uptake/translocation of the surfactant sodium dodecyl sulfate (SDS) and the heavy metal zinc (Zn) in Populus alba L...
December 7, 2017: Tree Physiology
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