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https://www.readbyqxmd.com/read/28523618/the-effect-of-sewage-sludge-on-heavy-metal-concentrations-in-wheat-plant-triticum-aestivum-l
#1
Fatemeh Shahbazi, Somayeh Ghasemi, Hamid Sodaiezadeh, Kobra Ayaseh, Rasool Zamani-Ahmadmahmoodi
The use of sewage sludge in agricultural soils can improve soil physical and chemical properties and soil fertility by increasing organic materials; however, the presence of heavy metals in sewage sludge is a significant problem for the quality of agricultural products and the environment. Most heavy metals, due to their inactive nature, are stable and can affect human health. This study investigates the effect of sewage sludge on the concentration of copper, zinc, cadmium, lead, iron, and manganese in two varieties of wheat, i...
May 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28516145/zinc-nickel-and-cobalt-ions-removal-from-aqueous-solution-and-plating-plant-wastewater-by-modified-aspergillus-flavus-biomass-a-dataset
#2
Rauf Foroutan, Hossein Esmaeili, Seyedehmasomeh Derakhshandeh Rishehri, Farzaneh Sadeghzadeh, Seyedehroghayeh Mirahmadi, Malihe Kosarifard, Bahman Ramavandi
The biomass of Aspergillus flavus was modified by calcium chloride to achieve a bioadsorbent for treating nickel, cobalt, and zinc ions from aqueous solutions. The information of pH, bioadsorbent dose, contact time, and temperature effect on the removal efficiency are presented. The data of Freundlich and Langmuir isotherm and pseudo-first-order and pseudo-second-order kinetic models are also depicted. The data showed that the maximum bioadsorption capacity of nickel, cobalt, and zinc ions is 32.26, 31.06 and 27...
June 2017: Data in Brief
https://www.readbyqxmd.com/read/28507559/the-dnaj-gene-family-in-pepper-capsicum-annuum-l-comprehensive-identification-characterization-and-expression-profiles
#3
FangFei Fan, Xian Yang, Yuan Cheng, Yunyan Kang, Xirong Chai
The DnaJ proteins which function as molecular chaperone played critical roles in plant growth and development and response to heat stress (HS) and also called heat shock protein 40 based on molecular weight. However, little was reported on this gene family in pepper. Recently, the release of the whole pepper genome provided an opportunity for identifying putative DnaJ homologous. In this study, a total of 76 putative pepper DnaJ genes (CaDnaJ01 to CaDnaJ76) were identified using bioinformatics methods and classified into five groups by the presence of the complete three domains (J-domain, zinc finger domain, and C-terminal domain)...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28507557/exogenous-glutathione-enhances-mercury-tolerance-by-inhibiting-mercury-entry-into-plant-cells
#4
Yeon-Ok Kim, Hyeun-Jong Bae, Eunjin Cho, Hunseung Kang
Despite the increasing understanding of the crucial roles of glutathione (GSH) in cellular defense against heavy metal stress as well as oxidative stress, little is known about the functional role of exogenous GSH in mercury (Hg) tolerance in plants. Here, we provide compelling evidence that GSH contributes to Hg tolerance in diverse plants. Exogenous GSH did not mitigate the toxicity of cadmium (Cd), copper (Cu), or zinc (Zn), whereas application of exogenous GSH significantly promoted Hg tolerance during seed germination and seedling growth of Arabidopsis thaliana, tobacco, and pepper...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28503807/reducing-anti-nutritional-factor-and-enhancing-yield-with-advancing-time-of-planting-and-zinc-application-in-grasspea-in-ethiopia
#5
Ashutosh Sarker, Asnake Fikre, Ali M Abd El-Moneim, Hani Nakkoul, Murari Singh
BACKGROUND: Grasspea (Lathyrus sativus L.), an important pulse crop in food, feed and for sustainable crop production systems in Ethiopia. Despite its advantage on nutrition and adaptability to harsh climate and low fertile soil, it contains a neurotoxin β - N - Oxalyl α β diamiono propionic acid (β-ODAP) which paralyzes the lower limbs and is affected by genotypic and agronomic factors. The effect of zinc application and planting date on yield and β- ODAP content of two genotypes, experiments were conducted in two regions of Ethiopia...
May 15, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28499009/a-viral-suppressor-of-rna-silencing-inhibits-argonaute-1-function-by-precluding-target-rna-binding-to-pre-assembled-risc
#6
Erzsébet Kenesi, Alberto Carbonell, Rita Lózsa, Beáta Vértessy, Lóránt Lakatos
In most eukaryotes, RNA silencing is an adaptive immune system regulating key biological processes including antiviral defense. To evade this response, viruses of plants, worms and insects have evolved viral suppressors of RNA silencing proteins (VSRs). Various VSRs, such as P1 from Sweet potato mild mottle virus (SPMMV), inhibit the activity of RNA-induced silencing complexes (RISCs) including an ARGONAUTE (AGO) protein loaded with a small RNA. However, the specific mechanisms explaining this class of inhibition are unknown...
May 12, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28496135/isolated-bacillus-subtilis-strain-330-2-and-its-antagonistic-genes-identified-by-the-removing-pcr
#7
Zahoor Ahmad, Jia Wu, Lulu Chen, Wubei Dong
Plant growth-promoting bacteria (PGPB) may trigger tolerance against biotic/abiotic stresses and growth enhancement in plants. In this study, an endophytic bacterial strain from rapeseed was isolated to assess its role in enhancing plant growth and tolerance to abiotic stresses, as well as banded leaf and sheath blight disease in maize. Based on 16S rDNA and BIOLOG test analysis, the 330-2 strain was identified as Bacillus subtilis. The strain produced indole-3-acetic acid, siderophores, lytic enzymes and solubilized different sources of organic/inorganic phosphates and zinc...
May 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28494313/heavy-metals-translocation-and-accumulation-from-the-rhizosphere-soils-to-the-edible-parts-of-the-medicinal-plant-fengdan-paeonia-ostii-grown-on-a-metal-mining-area-china
#8
Zhang Jun Shen, De Cong Xu, Yan Song Chen, Zhen Zhang
Fengdan (Paeonia ostii) is one of Chinese 34 famous medicinal materials. This study investigated the concentrations of Arsenic (As), Chromium (Cr), Cadmium (Cd), Copper (Cu), Lead (Pb), Iron (Fe), Manganese (Mn), and Zinc (Zn) in rhizosphere soils, cortex mouton and seeds of Fengdan planted in a metal mining area, China. The mean concentrations of As, Cd, Cu, and Zn in the rhizosphere soils were above the limits set by the Chinese Soil Environmental Quality Standard (GB 15618-1995). The contamination factor (CF) of Cd was >5, while it was >2for As, Cu, Pb, and Zn in all the soils...
May 8, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28493718/tamarixetin-3-o-%C3%AE-d-glucopyranoside-from-azadirachta-indica-leaves-gastroprotective-role-through-inhibition-of-matrix-metalloproteinase-9-activity-in-mice
#9
Dharmendra K Yadav, Yogesh P Bharitkar, Abhijit Hazra, Uttam Pal, Sugreev Verma, Sayantan Jana, Umesh P Singh, Nakul C Maiti, Nirup B Mondal, Snehasikta Swarnakar
Neem (Azadirachta indica) is a well-known medicinal and insecticidal plant. Although previous studies have reported the antiulcer activity of neem leaf extract, the lead compound is still unidentified. The present study reports tamarixetin 3-O-β-d-glucopyranoside (1) from a methanol extract of neem leaves and its gastroprotective activity in an animal model. Compound 1 showed significant protection against indomethacin-induced gastric ulceration in mice in a dose-dependent manner. Moreover, ex vivo and circular dichroism studies confirmed that 1 inhibited the enzyme matrix metalloproteinase-9 (MMP-9) activity with an IC50 value of ca...
May 11, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28483053/gm1-mmp-is-involved-in-growth-and-development-of-leaf-and-seed-and-enhances-tolerance-to-high-temperature-and-humidity-stress-in-transgenic-arabidopsis
#10
Sushuang Liu, Yanmin Liu, Yanhong Jia, Jiaping Wei, Shuang Wang, Xiaolin Liu, Yali Zhou, Yajing Zhu, Weihong Gu, Hao Ma
Matrix metalloproteinases (MMPs) are a family of zinc- and calcium-dependent endopeptidases. Gm1-MMP was found to play an important role in soybean tissue remodeling during leaf expansion. In this study, Gm1-MMP was isolated and characterized. Its encoding protein had a relatively low phylogenetic relationship with the MMPs in other plant species. Subcellular localization indicated that Gm1-MMP was a plasma membrane protein. Gm1-MMP showed higher expression levels in mature leaves, old leaves, pods, and mature seeds, as well as was involved in the development of soybean seed...
June 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28482132/arbuscular-mycorrhizal-colonization-has-little-consequence-for-plant-heavy-metal-uptake-in-contaminated-field-soils
#11
Lee H Dietterich, Cédric Gonneau, Brenda B Casper
The factors affecting plant uptake of heavy metals from metalliferous soils are deeply important to the remediation of polluted areas. Arbuscular mycorrhizal fungi (AMF), soil-dwelling fungi that engage in an intimate exchange of nutrients with plant roots, are thought to be involved in plant metal uptake as well. Here, we used a novel field-based approach to investigate the effects of AMF on plant metal uptake from soils in Palmerton, PA, USA contaminated with heavy metals from a nearby zinc smelter. Previous studies often focus on one or two plant species or metals, tend to use highly artificial growing conditions and metal applications, and rarely consider metals' effects on plants and AMF together...
May 8, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28480497/expression-analysis-of-genes-encoding-double-b-box-zinc-finger-proteins-in-maize
#12
Wenlan Li, Jingchao Wang, Qi Sun, Wencai Li, Yanli Yu, Meng Zhao, Zhaodong Meng
The B-box proteins play key roles in plant development. The double B-box (DBB) family is one of the subfamily of the B-box family, with two B-box domains and without a CCT domain. In this study, 12 maize double B-box genes (ZmDBBs) were identified through a genome-wide survey. Phylogenetic analysis of DBB proteins from maize, rice, Sorghum bicolor, Arabidopsis, and poplar classified them into five major clades. Gene duplication analysis indicated that segmental duplications made a large contribution to the expansion of ZmDBBs...
May 8, 2017: Functional & Integrative Genomics
https://www.readbyqxmd.com/read/28471462/the-role-of-metals-in-mammalian-olfaction-of-low-molecular-weight-organosulfur-compounds
#13
REVIEW
Eric Block, Victor S Batista, Hiroaki Matsunami, Hanyi Zhuang, Lucky Ahmed
Covering: up to the end of 2017While suggestions concerning the possible role of metals in olfaction and taste date back 50 years, only recently has it been possible to confirm these proposals with experiments involving individual olfactory receptors (ORs). A detailed discussion of recent experimental results demonstrating the key role of metals in enhancing the response of human and other vertebrate ORs to specific odorants is presented against the backdrop of our knowledge of how the sense of smell functions both at the molecular and whole animal levels...
May 10, 2017: Natural Product Reports
https://www.readbyqxmd.com/read/28469631/genome-wide-identification-cloning-and-functional-analysis-of-the-zinc-iron-regulated-transporter-like-protein-zip-gene-family-in-trifoliate-orange-poncirus-trifoliata-l-raf
#14
Xing-Zheng Fu, Xue Zhou, Fei Xing, Li-Li Ling, Chang-Pin Chun, Li Cao, Mark G M Aarts, Liang-Zhi Peng
Zinc (Zn) and iron (Fe) deficiency are widespread among citrus plants, but the molecular mechanisms regarding uptake and transport of these two essential metal ions in citrus are still unclear. In the present study, 12 members of the Zn/Fe-regulated transporter (ZRT/IRT)-related protein (ZIP) gene family were identified and isolated from a widely used citrus rootstock, trifoliate orange (Poncirus trifoliata L. Raf.), and the genes were correspondingly named as PtZIPs according to the sequence and functional similarity to Arabidopsis thaliana ZIPs...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28468120/trace-element-concentrations-along-a-gradient-of-urban-pressure-in-forest-and-lawn-soils-of-the-paris-region-france
#15
Ludovic Foti, Florence Dubs, Jacques Gignoux, Jean-Christophe Lata, Thomas Z Lerch, Jérôme Mathieu, François Nold, Naoise Nunan, Xavier Raynaud, Luc Abbadie, Sébastien Barot
The concentration, degree of contamination and pollution of 7 trace elements (TEs) along an urban pressure gradient were measured in 180 lawn and wood soils of the Paris region (France). Iron (Fe), a major element, was used as reference element. Copper (Cu), cadmium (Cd), lead (Pb) and zinc (Zn) were of anthropogenic origin, while arsenic (As), chromium (Cr) and nickel (Ni) were of natural origin. Road traffic was identified as the main source of anthropogenic TEs. In addition, the industrial activity of the Paris region, especially cement plants, was identified as secondary source of Cd...
April 28, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28467669/investigation-of-the-effect-of-naringenin-on-oxidative-stress-related-alterations-in-testis-of-hydrogen-peroxide-administered-rats
#16
Zafer Sahin, Ahmet Ozkaya, Gokhan Cuce, Mirac Uckun, Ertan Yologlu
Testis tissue is prone to oxidation because its plasma membrane contains many polyunsaturated fatty acids. Naringenin is a plant-derived natural flavonoid. We investigated the possible ameliorative role of naringenin on the hydrogen peroxide (H2 O2 )-induced testicular damage in Wistar rats. Animals received 12 mg/kg H2 O2 by intraperitoneal injection, and 50 mg/kg naringenin via orogastric gavage for 4 weeks. In the H2 O2 group, the testis malondialdehyde level increased, while the amount of reduced glutathione, glutathione transferase activities, and the testis weight decreased...
May 3, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28458203/biosorption-of-zn-ii-from-industrial-effluents-using-sugar-beet-pulp-and-f-vesiculosus-from-laboratory-tests-to-a-pilot-approach
#17
Laura Castro, M Luisa Blázquez, Felisa González, Jesús A Muñoz, Antonio Ballester
The aim of this work was to demonstrate the feasibility of the application of biosorption in the treatment of metal polluted wastewaters through the development of several pilot plants to be implemented by the industry. The use as biosorbents of both the brown seaweed Fucus vesiculosus and a sugar beet pulp was investigated to remove heavy metal ions from a wastewater generated in an electroplating industry: Industrial Goñabe (Valladolid, Spain). Batch experiments were performed to study the effects of pH, contact time and initial metal concentration on metal biosorption...
April 27, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28456920/non-enhanced-phytoextraction-of-cadmium-zinc-and-lead-by-high-yielding-crops
#18
Markéta Mayerová, Šárka Petrová, Mikuláš Madaras, Jan Lipavský, Tomáš Šimon, Tomáš Vaněk
Heavy metal soil contamination from mining and smelting has been reported in several regions around the world, and phytoextraction, using plants to accumulate risk elements in aboveground harvestable organs, is a useful method of substantially reducing this contamination. In our 3-year experiment, we tested the hypothesis that phytoextraction can be successful in local soil conditions without external fertilizer input. The phytoextraction efficiency of 15 high-yielding crop species was assessed in a field experiment performed at the Litavka River alluvium in the Příbram region of Czechia...
April 30, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28455771/cadmium-and-zinc-activate-adaptive-mechanisms-in-nicotiana-tabacum-similar-to-those-observed-in-metal-tolerant-plants
#19
Rosario Vera-Estrella, María F Gómez-Méndez, Julio C Amezcua-Romero, Bronwyn J Barkla, Paul Rosas-Santiago, Omar Pantoja
Tobacco germinated and grew in the presence of high concentrations of cadmium and zinc without toxic symptoms. Evidence suggests that these ions are sequestered into the vacuole by heavy metal/H (+) exchanger mechanisms. Heavy metal hyperaccumulation and hypertolerance are traits shared by a small set of plants which show specialized physiological and molecular adaptations allowing them to accumulate and sequester toxic metal ions. Nicotiana tabacum was used to test its potential as a metal-accumulator in a glass house experiment...
April 28, 2017: Planta
https://www.readbyqxmd.com/read/28453515/reliable-reference-genes-for-normalization-of-gene-expression-data-in-tea-plants-camellia-sinensis-exposed-to-metal-stresses
#20
Ming-Le Wang, Qing-Hui Li, Hua-Hong Xin, Xuan Chen, Xu-Jun Zhu, Xing-Hui Li
Tea plants [Camellia sinensis (L.) O. Kuntze] are an important leaf-type crop that are widely used for the production of non-alcoholic beverages in the world. Exposure to excessive amounts of heavy metals adversely affects the quality and yield of tea leaves. To analyze the molecular responses of tea plants to heavy metals, a reliable quantification of gene expression is important and of major importance herein is the normalization of the measured expression levels for the target genes. Ideally, stably expressed reference genes should be evaluated in all experimental systems...
2017: PloS One
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