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https://www.readbyqxmd.com/read/28402308/phyto-dewatering-of-sewage-sludge-using-panicum-repens-l
#1
A S El-Gendy, H I El-Kassas, T M A Razek, H Abdel-Latif
Experiments in the field environment have been conducted to study the growth of Panicum repens L., an aquatic plant, in the sewage sludge matrix. The experiments were also carried out to investigate the ability of this plant to dewater sewage sludge to increase the capacity of conventional drying beds. In addition, the ability of Panicum repens L. to reduce the sludge contents of certain elements (copper (Cu), Iron (Fe), Sodium (Na), lead (Pb), and Zinc (Zn)) was also investigated. All experiments were carried out in batch reactors...
April 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28376412/effect-of-exogenously-applied-molybdenum-on-its-absorption-and-nitrate-metabolism-in-strawberry-seedlings
#2
Li Liu, Wei Xiao, Ling Li, Dong-Mei Li, Dong-Sheng Gao, Cui-Ying Zhu, Xi-Ling Fu
Molybdenum (Mo)-an essential element of plants-is involved in nitrogen (N) metabolism. Plants tend to accumulate more nitrate and show lower nitrogen use efficiency (NUE) under Mo-deficient conditions. Improving NUE in fruits reduces the negative effect of large applications of chemical fertilizer, but the mechanisms underlying how Mo enhances NUE remain unclear. We cultivated strawberry seedlings sprayed with 0, 67.5, 135, 168.75, or 202.5 g Mo·ha(-1) in a non-soil culture system. The Mo concentration in every plant tissue analyzed increased gradually as Mo application level rose...
March 23, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28299516/effects-of-nitrogen-and-water-addition-on-trace-element-stoichiometry-in-five-grassland-species
#3
Jiangping Cai, Jacob Weiner, Ruzhen Wang, Wentao Luo, Yongyong Zhang, Heyong Liu, Zhuwen Xu, Hui Li, Yuge Zhang, Yong Jiang
A 9-year manipulative experiment with nitrogen (N) and water addition, simulating increasing N deposition and changing precipitation regime, was conducted to investigate the bioavailability of trace elements, iron (Fe), manganese (Mn), copper (Cu), and zinc (Zn) in soil, and their uptake by plants under the two environmental change factors in a semi-arid grassland of Inner Mongolia. We measured concentrations of trace elements in soil and in foliage of five common herbaceous species including 3 forbs and 2 grasses...
March 15, 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/28278781/phytoremediation-potential-of-water-caltrop-trapa-natans-l-using-municipal-wastewater-of-the-activated-sludge-process-based-municipal-wastewater-treatment-plant
#4
Vinod Kumar, A K Chopra
Phytoremediation experiments were carried out to assess the phytoremediation potential of water caltrop (Trapa natans L.) using municipal wastewater collected from the activated sludge process- (ASP) based municipal wastewater treatment plant. The results revealed that T. natans significantly (P ≤ .05/P ≤ .01/P ≤ .001) reduced the contents of total dissolved solids (TDS), electrical conductivity (EC), biochemical oxygen demand (BOD5), chemical oxygen demand, total Kjeldahl nitrogen, phosphate ([Formula: see text]), sodium (Na(+)), potassium (K(+)), calcium (Ca(2+)), magnesium (Mg(2+)), cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), manganese (Mn), lead (Pb), zinc (Zn), standard plate count, and most probable number of the municipal wastewater after phytoremediation experiments...
February 22, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28260522/medicinal-and-healthical-applications-of-tinospora-cordifolia-guduchi-a-miraculous-herb-countering-various-diseases-disorders-and-potentials-as-an-immune-booster
#5
Kuldeep Dhama Dhama, Swati Sachan, Rekha Khandia, Ashok Munjal, Hafiz M N Iqbal, Shyma K Latheef, Kumaragurubaran Karthik, Hari Abdul Samad, Ruchi Tiwari, Maryam Dadar
BACKGROUND: Plants have been known as an integral part of traditional medicine because of their phytoconstituents with their miraculous substances. Tinospora cordifolia (Guduchi/Giloy) is one such plant having pharmacological functions and medicinal values due to its several constituents such as terpenes, glycosides, alkaloids, steroids and flavonoids. Thus, it has been rightly mentioned in old texts as "Amrita". OBJECTIVE: The objective of the present review is to extend the current knowledge, importance and beneficial pharmacological applications of Guduchi in humans for safeguarding various health issues...
February 28, 2017: Recent Patents on Endocrine, Metabolic & Immune Drug Discovery
https://www.readbyqxmd.com/read/28207797/mutation-increasing-%C3%AE-carotene-concentrations-does-not-adversely-affect-concentrations-of-essential-mineral-elements-in-pepper-fruit
#6
Nasya B Tomlekova, Philip J White, Jacqueline A Thompson, Emil A Penchev, Stephan Nielen
Vitamin and mineral deficiencies are prevalent in human populations throughout the world. Vitamin A deficiency affects hundreds of millions of pre-school age children in low income countries. Fruits of pepper (Capsicum annuum L.) can be a major dietary source of precursors to Vitamin A biosynthesis, such as β-carotene. Recently, pepper breeding programs have introduced the orange-fruited (of) trait of the mutant variety Oranzheva kapiya, which is associated with high fruit β-carotene concentrations, to the mutant variety Albena...
2017: PloS One
https://www.readbyqxmd.com/read/28111921/glyphosate-sorption-desorption-on-biochars-interactions-of-physical-and-chemical-processes
#7
Kathleen E Hall, Kurt A Spokas, Beatriz Gamiz, Lucia Cox, Sharon K Papiernik, William C Koskinen
BACKGROUND: Biochar, a carbon-rich product of biomass pyrolysis, could limit glyphosate transport in soil and remediate contaminated water. The present study investigates the sorption/desorption behavior of glyphosate on biochars prepared from different hardwoods at temperatures ranging from 350°C to 900°C to elucidate fundamental mechanisms. RESULTS: Glyphosate (1 mg L(-1) ) sorption on biochars increased with pyrolysis temperature and was highest on 900°C biochars; however, total sorption was low on a mass basis (<0...
January 23, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28103776/small-and-hungry-micrornas-in-micronutrient-homeostasis-of-plants
#8
Prashanti Patel, Karuna Yadav, Thumballi Ramabhatta Ganapathi
MicroRNAs are emerging players in plant development and response to stresses, both biotic and abiotic such as micronutrient deficiency. These small RNAs regulate cognate downstream targets either by transcript cleavage or translational inhibition. Micronutrient deficiencies lead to poor quality and yield of crops and impaired human health. Over the years several microRNAs have been identified which regulate expression of genes controlling uptake, mobilization and homeostasis of macronutrients such as nitrogen, phosphorus and sulfur to ensure sufficiency without toxicity...
January 17, 2017: MicroRNA
https://www.readbyqxmd.com/read/28093838/fusaric-acid-contributes-to-virulence-of-fusarium-oxysporum-on-plant-and-mammalian-hosts
#9
Cristina López-Díaz, Vahid Rahjoo, Michael Sulyok, Veronica Ghionna, Adela Martín-Vicente, Javier Capilla, Antonio Di Pietro, Manuel S López-Berges
Fusaric acid (FA) is among the oldest identified secondary metabolites produced by Fusarium species, known for a long time to display strong phytotoxicity and moderate toxicity to animal cells; however, the cellular targets of FA as well as its function in fungal pathogenicity remain unknown. Here, we investigated the role of FA in Fusarium oxysporum, a soil-borne cross-kingdom pathogen that causes vascular wilt on more than a hundred plant species and opportunistic infections in humans. Targeted deletion of fub1, encoding a predicted orthologue of the polyketide synthase involved in FA biosynthesis in F...
January 17, 2017: Molecular Plant Pathology
https://www.readbyqxmd.com/read/28006667/alkaline-technosol-contaminated-by-former-mining-activity-and-its-culturable-autochthonous-microbiota
#10
A Šimonovičová, P Ferianc, H Vojtková, D Pangallo, P Hanajík, L Kraková, Z Feketeová, S Čerňanský, L Okenicová, M Žemberyová, M Bujdoš, E Pauditšová
Technosols or technogenic substrates contaminated by potentially toxic elements as a result of iron mining causes not only contamination of the surrounding ecosystem but may also lead to changes of the extent, abundance, structure and activity of soil microbial community. Microbial biomass were significantly inhibited mainly by exceeding limits of potentially toxic metals as arsenic (in the range of 343-511 mg/kg), copper (in the range of 7980-9227 mg/kg), manganese (in the range of 2417-2670 mg/kg), alkaline and strong alkaline pH conditions and minimal contents of organic nutrients...
March 2017: Chemosphere
https://www.readbyqxmd.com/read/27989480/atmospheric-occurrence-and-health-risks-of-pcdd-fs-polychlorinated-biphenyls-and-polychlorinated-naphthalenes-by-air-inhalation-in-metallurgical-plants
#11
Lili Yang, Guorui Liu, Minghui Zheng, Rong Jin, Qingqing Zhu, Yuyang Zhao, Xian Zhang, Yang Xu
Metallurgical plants are important sources of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), polychlorinated biphenyls (PCBs) and polychlorinated naphthalenes (PCNs). It is significant to evaluate the air levels and human risks of PCDD/Fs, PCBs and PCNs in metallurgical plants considering their adverse effects on human health and thousands of metallurgical plants being in operation in China. The estimated inhalation intakes of PCDD/Fs, PCBs, and PCNs together in eight iron ore sintering plants, three secondary copper plants, four secondary aluminum plants, and one secondary lead plant were 4...
February 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/27853966/remediation-of-cu-metal-induced-accelerated-fenton-reaction-by-potato-peels-bio-sorbent
#12
Rafia Azmat, Sumeira Moin, Ailyan Saleem
This article has allied exposure to Ecological Particulate Matter (EPM) and its remediation using potato peel surface (PPC) bio-sorbent on two important edible crops Spinacia oleracea and Luffa acutangula. Fenton reaction acceleration was one of the major stress oxidation reactions as a consequence of iron and copper toxicity, which involve in the formation of hydroxyl radical (OH) through EPM. Results showed that the oxidative stress encouraged by Cu in both species that recruits the degradation of photosynthetic pigments, initiating decline in growth, reduced leaf area and degrade proteins...
December 2016: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/27837364/translocation-of-metal-ions-from-soil-to-tobacco-roots-and-their-concentration-in-the-plant-parts
#13
Cleber Pinto da Silva, Thiago E de Almeida, Rosimara Zittel, Tatiana R de Oliveira Stremel, Cinthia E Domingues, Januário Kordiak, Sandro Xavier de Campos
This paper presents a study on the translocation factors (TFs) and bioconcentration factors (BCFs) of copper (Cu), manganese (Mn), zinc (Zn), cobalt (Co), chromium (Cr), cadmium (Cd), lead (Pb), iron (Fe), nickel (Ni), and arsenic (As) ions in roots, stems, and leaves of tobacco. The results revealed that during the tobacco growth, the roots are able to increase the sensitiveness of the physiological control, reducing the translocation of the metals Ni (0.38) and Pb (0.48) to the leaves. Cd and Zn presented factors TF and BCF >1 in the three tissues under analysis, which indicates the high potential for transportation and accumulation of these metals in all plant tissues...
December 2016: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/27833841/plant-growth-promotion-and-biofortification-of-chickpea-and-pigeonpea-through-inoculation-of-biocontrol-potential-bacteria-isolated-from-organic-soils
#14
Subramaniam Gopalakrishnan, Srinivas Vadlamudi, Srinivasan Samineni, C V Sameer Kumar
Seven strains of bacteria [Pseudomonas plecoglossicida SRI-156, Brevibacterium antiquum SRI-158, Bacillus altitudinis SRI-178, Enterobacter ludwigii SRI-211, E. ludwigii SRI-229, Acinetobacter tandoii SRI-305 and Pseudomonas monteilii SRI-360; demonstrated previously for control of charcoal rot disease in sorghum and plant growth-promotion (PGP) in rice] were evaluated for their PGP and biofortification traits in chickpea and pigeonpea under field conditions. When treated on seed, the seven selected bacteria significantly enhanced the shoot height and root length of both chickpea and pigeonpea over the un-inoculated control...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27799013/ecotoxicological-assessment-of-dewatered-drinking-water-treatment-residue-for-environmental-recycling
#15
Nannan Yuan, Changhui Wang, Laura A Wendling, Yuansheng Pei
The beneficial recycle of drinking water treatment residue (DWTR) in environmental remediation has been demonstrated in many reports. However, the lack of information concerning the potential toxicity of dewatered DWTR hinders its widespread use. The present study examined the ecotoxicity of dewatered aluminum (Al) and iron (Fe) DWTR leachates to a green alga, Chlorella vulgaris. Data from the variations of cell density and chlorophyll a content suggested that algal growth in DWTR leachates was inhibited. The algal cellular oxidation stress was initially induced but completely eliminated within 72 h by antioxidant enzymes...
November 18, 2016: Environmental Technology
https://www.readbyqxmd.com/read/27733860/association-of-increased-grain-iron-and-zinc-concentrations-with-agro-morphological-traits-of-biofortified-rice
#16
Laura T Moreno-Moyano, Julien P Bonneau, José T Sánchez-Palacios, Joseph Tohme, Alexander A T Johnson
Biofortification of rice (Oryza sativa L.) with micronutrients is widely recognized as a sustainable strategy to alleviate human iron (Fe) and zinc (Zn) deficiencies in developing countries where rice is the staple food. Constitutive overexpression of the rice nicotianamine synthase (OsNAS) genes has been successfully implemented to increase Fe and Zn concentrations in unpolished and polished rice grain. Intensive research is now needed to couple this high-micronutrient trait with high grain yields. We investigated associations of increased grain Fe and Zn concentrations with agro-morphological traits of backcross twice second filial (BC2F2) transgenic progeny carrying OsNAS1 or OsNAS2 overexpression constructs under indica/japonica and japonica/japonica genetic backgrounds...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27681110/assessing-the-combination-of-iron-sulfate-and-organic-materials-as-amendment-for-an-arsenic-and-copper-contaminated-soil-a-chemical-and-ecotoxicological-approach
#17
Teresa Fresno, Eduardo Moreno-Jiménez, Jesús M Peñalosa
The efficiency of combining iron sulfate and organic amendments (paper mill sludge, olive mill waste compost and olive tree pruning biochar) for the remediation of an As- and Cu-contaminated soil was evaluated. Changes in As and Cu fractionation and solubility due to the application of the amendments was explored by leachate analysis, single and sequential extractions. Also, the effects on Arrhenatherum elatius growth, germination of Lactuca sativa and toxicity to the bacteria Vibrio fischeri were assessed...
December 2016: Chemosphere
https://www.readbyqxmd.com/read/27664654/mineral-composition-of-pulp-and-production-of-the-yellow-passion-fruit-with-organic-and-conventional-fertilizers
#18
Anália Lúcia Vieira Pacheco, Mateus Francisco Pagliarini, Gilberto Bernardo de Freitas, Ricardo Henrique Silva Santos, José Eduardo Serrão, José Cola Zanuncio
The use of organic foods has been increased in the world. Organic fertilizers, like cattle manure, have emerged as an important component of the organic system production. The production, mass, size, and mineral composition of passion fruit pulp were evaluated when treated with a mineral fertilizer (control) (MIN) or cattle manure at a single dose equivalent to potassium fertilizer (ORG) or double dose (2×ORG). The production and the numbers of fruits of plants treated with MIN and 2×ORG was higher than with ORG...
February 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27661723/removal-of-phyto-accessible-copper-from-contaminated-soils-using-zero-valent-iron-amendment-and-magnetic-separation-methods-assessment-of-residual-toxicity-using-plant-and-metplate%C3%A2-studies
#19
COMPARATIVE STUDY
Nan Feng, Hossein Ghoveisi, Gabriel Bitton, Jean-Claude J Bonzongo
Zero valent iron (ZVI) has been widely tested and used in remediation of both contaminated soils and groundwater, and in general, the in situ amendment of the contaminated media is used as remediation approach. However, concerns remain as to the potential detrimental effects of both the immobilized ZVI and the adsorbed pollutants as the treated system could undergo transformations over time. Accordingly, plans for soil remediation by in situ immobilization of sorbents should include a long-term monitoring of the treated systems...
December 2016: Environmental Pollution
https://www.readbyqxmd.com/read/27633505/the-expression-of-heterologous-fe-iii-phytosiderophore-transporter-hvys1-in-rice-increases-fe-uptake-translocation-and-seed-loading-and-excludes-heavy-metals-by-selective-fe-transport
#20
Raviraj Banakar, Ána Alvarez Fernández, Javier Abadía, Teresa Capell, Paul Christou
Many metal transporters in plants are promiscuous, accommodating multiple divalent cations including some which are toxic to humans. Previous attempts to increase the iron (Fe) and zinc (Zn) content of rice endosperm by overexpressing different metal transporters have therefore led unintentionally to the accumulation of copper (Cu), manganese (Mn) and cadmium (Cd). Unlike other metal transporters, barley Yellow Stripe 1 (HvYS1) is specific for Fe. We investigated the mechanistic basis of this preference by constitutively expressing HvYS1 in rice under the control of the maize ubiquitin1 promoter and comparing the mobilization and loading of different metals...
April 2017: Plant Biotechnology Journal
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