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https://www.readbyqxmd.com/read/28724262/phytohormones-and-induction-of-plant-stress-tolerance-and-defense-genes-by-seed-and-foliar-inoculation-with-azospirillum-brasilense-cells-and-metabolites-promote-maize-growth
#1
Josiane Fukami, Francisco Javier Ollero, Manuel Megías, Mariangela Hungria
Azospirillum spp. are plant-growth-promoting bacteria used worldwide as inoculants for a variety of crops. Among the beneficial mechanisms associated with Azospirillum inoculation, emphasis has been given to the biological nitrogen fixation process and to the synthesis of phytohormones. In Brazil, the application of inoculants containing A. brasilense strains Ab-V5 and Ab-V6 to cereals is exponentially growing and in this study we investigated the effects of maize inoculation with these two strains applied on seeds or by leaf spray at the V2...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28724259/herbal-pre-conditioning-induces-proliferation-and-delays-senescence-in-wharton-s-jelly-mesenchymal-stem-cells
#2
Avinash Sanap, Bhawna Chandravanshi, Tejas Shah, Girish Tillu, Anand Dhanushkodi, Ramesh Bhonde, Kalpana Joshi
BACKGROUND: Mesenchymal Stem Cells (MSCs) are multipotent stem cells which are being explored for various clinical applications. Isolation and in-vitro expansion of MSCs remain important in achieving desired cell number for the therapy. However, in-vitro proliferation of MSCs is often associated with senescence and early onset of apoptosis which limits its therapeutic ability and long term clinical use. Tinospora cordifolia and Withania somnifera are used widely in Ayurveda: the traditional Indian system of medicine and are reported to have rejuvenating and anti-aging potential...
July 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28724250/reuse-water-exposure-duration-seasonality-and-treatment-affect-tissue-responses-in-a-model-fish
#3
B J Blunt, A Singh, L Wu, M Gamal El-Din, M Belosevic, K B Tierney
Partially remediated gray (reuse) water will likely find increasing use in a variety of applications owing to the increasing scarcity of freshwater. We aimed to determine if a model fish, the goldfish, could sense reuse water using olfaction (smell), and if 30min or 7d (acute) and 60d (sub-chronic) exposures would affect their olfactory responses to natural odorants. We examined olfaction as previous studies have found that numerous chemicals can impair the olfactory sense, which is critical to carrying out numerous life-sustaining behaviors from feeding to mating...
July 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28724230/excessive-input-of-phosphorus-significantly-affects-microbial-fe-iii-reduction-in-flooded-paddy-soils-by-changing-the-abundances-and-community-structures-of-clostridium-and-geobacteraceae
#4
Lina Li, Zhi Qu, Rong Jia, Baoli Wang, Yuanyuan Wang, Dong Qu
Microbial Fe(III) reduction can make an excellent contribution to the bioremediation of contaminated environments and potentially reduce methanogenesis. Excessive input of phosphorus (P) by P fertilizer application and eutrophied irrigation water might have a substantial influence on the process of microbial Fe(III) reduction in flooded paddy soils. To evaluate the effect of P application on microbial Fe(III) reduction, the responses of Clostridium and Geobacteraceae communities to different concentrations of P addition (CK: 0mmolPkg(-1) soil; P1: 3...
July 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28724229/microbial-association-with-the-dynamics-of-particulate-organic-carbon-in-response-to-the-amendment-of-elevated-co2-derived-wheat-residue-into-a-mollisol
#5
Yanhong Wang, Zhenhua Yu, Yansheng Li, Guanghua Wang, Junjie Liu, Judong Liu, Xiaobing Liu, Jian Jin
As the chemical quality of crop residue is likely to be affected by elevated CO2 (eCO2), residue amendments may influence soil organic carbon (SOC) sequestration. However, in Mollisols, the dynamics of the SOC fractions in response to amendment with wheat residue produced under eCO2 and the corresponding microbial community composition remain unknown. Such investigation is essential to residue management, which affects the soil quality and productivity of future farming systems. To narrow this knowledge gap, (13)C-labeled shoot and root residue derived from ambient CO2 (aCO2) or eCO2 were amended into Mollisols and incubated for 200days...
July 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28724228/a-new-method-for-correlation-analysis-of-compositional-environmental-data-a-worked-example
#6
C Reimann, P Filzmoser, K Hron, P Kynčlová, R G Garrett
Most data in environmental sciences and geochemistry are compositional. Already the unit used to report the data (e.g., μg/l, mg/kg, wt%) implies that the analytical results for each element are not free to vary independently of the other measured variables. This is often neglected in statistical analysis, where a simple log-transformation of the single variables is insufficient to put the data into an acceptable geometry. This is also important for bivariate data analysis and for correlation analysis, for which the data need to be appropriately log-ratio transformed...
July 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28724226/application-of-a-crustacean-bioassay-to-evaluate-a-multi-contaminated-metal-pah-pcb-harbor-sediment-before-and-after-electrokinetic-remediation-using-eco-friendly-enhancing-agents
#7
Y Tian, C Boulangé-Lecomte, A Benamar, N Giusti-Petrucciani, A Duflot, S Olivier, C Frederick, J Forget-Leray, F Portet-Koltalo
Electrokinetic (EK) remediation can be a suitable technology for treating contaminated dredged harbor sediment, stored on terrestrial disposal sites. Citric acid (CA) and biosurfactants (rhamnolipids and saponin) were chosen as enhancing agents for simultaneous metal (Cd, Cr, Cu, Pb, Zn) and PAH/PCB removal by EK because of their potential low toxicity with a view to site restoration. Three EK runs were performed using a periodic voltage (1Vcm(-1)) and various concentrations of agents. The best combination of CA (0...
July 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28724223/chromium-vi-adsorption-from-wastewater-using-porous-magnetite-nanoparticles-prepared-from-titanium-residue-by-a-novel-solid-phase-reduction-method
#8
Genkuan Ren, Xinlong Wang, Penghui Huang, Benhe Zhong, Zhiye Zhang, Lin Yang, Xiushan Yang
Porous magnetite nanoparticles were successfully synthesized by reduction of titanium residue with pyrite under nitrogen protection, and characterized by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, vibrating sample magnetometer, X-ray photoelectron spectroscope, zeta potential and Brunauer-Emmett-Teller method. The XRD analysis confirmed the formation of porous magnetite nanoparticles with single spinel structure. The SEM image demonstrated that porous magnetite nanoparticles displayed spherical shape with the average diameter of ~51nm...
July 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28724193/saline-irrigation-for-the-management-of-skin-extravasation-injury-in-neonates
#9
REVIEW
P N Gopalakrishnan, Nitin Goel, Sujoy Banerjee
BACKGROUND: Extravasation injury, a complication commonly seen in the neonatal intensive care unit, can result in scarring with cosmetic and functional sequelae. A wide variety of treatments are available, including subcutaneous irrigation with saline (with or without hyaluronidase), liposuction, use of specific antidotes, topical applications, and normal wound care with dry or wet dressings. All such treatments aim to prevent or reduce the severity of complications. OBJECTIVES: Primary objective To compare the efficacy and safety of saline irrigation or saline irrigation with prior hyaluronidase infiltration versus no intervention or normal wound care for tissue healing in neonates with extravasation injury...
July 19, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28724191/n-s-co-doped-3d-porous-carbon-nanosheet-networks-enhancing-anode-performance-of-sodium-ion-batteries
#10
Lei Zou, Yanqing Lai, Hongxing Hu, Mengran Wang, Kai Zhang, Peng Zhang, Jing Fang, Jie Li
A facile and scalable method has been realized for the in-situ synthesis of N/S co-doping 3D porous carbon nanosheet networks (NSPCNN) as sodium-ion battery anode material. During the synthesis, NaCl is used for a template to prepare porous carbon nanosheet networks. In the resultant architecture, the unique 3D porous architecture ensures large specific surface area and fast diffusion path of both electrons and ions. Meanwhile, the import of N/S produces abundant defects, increased interlayer space, more active sites and high electronic conductivity...
July 19, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28724177/natural-molecules-for-the-therapy-of-hyperandrogenism-and-metabolic-disorders-in-pcos
#11
V Cappelli, M C Musacchio, A Bulfoni, G Morgante, V De Leo
OBJECTIVE: Polycystic ovary syndrome (PCOS) is the most common endocrinopathy of women of reproductive age and a complex endocrine condition, due to its heterogeneity and uncertainty about its etiology. However, PCOS is also associated with other metabolic abnormalities such as insulin resistance, impaired glucose tolerance, and diabetes. There are few medications that are approved for the most common symptoms of PCOS, leading to the off-label use of medications that were approved for other indications...
June 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28724111/agricultural-conservation-planning-framework-3-land-use-and-field-boundary-database-development-and-structure
#12
Mark D Tomer, David E James, Claudette M J Sandoval-Green
Conservation planning information is important for identifying options for watershed water quality improvement and can be developed for use at field, farm, and watershed scales. Translation across scales is a key issue impeding progress at watershed scales because watershed improvement goals must be connected with implementation of farm- and field-level conservation practices to demonstrate success. This is particularly true when examining alternatives for "trap and treat" practices implemented at agricultural-field edges to control (or influence) water flows through fields, landscapes, and riparian corridors within agricultural watersheds...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28724106/potential-environmental-benefits-from-blending-biosolids-with-other-organic-amendments-before-application-to-land
#13
Dharini Paramashivam, Nicholas M Dickinson, Timothy J Clough, Jacqui Horswell, Brett H Robinson
Biosolids disposal to landfill or through incineration is wasteful of a resource that is rich in organic matter and plant nutrients. Land application can improve soil fertility and enhance crop production but may result in excessive nitrate N (NO-N) leaching and residual contamination from pathogens, heavy metals, and xenobiotics. This paper evaluates evidence that these concerns can be reduced significantly by blending biosolids with organic materials to reduce the environmental impact of biosolids application to soils...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28724103/nematode-community-response-to-green-infrastructure-design-in-a-semiarid-city
#14
Mitchell A Pavao-Zuckerman, Christine Sookhdeo
Urbanization affects ecosystem function and environmental quality through shifts in ecosystem fluxes that are brought on by features of the built environment. Green infrastructure (GI) has been suggested as a best management practice (BMP) to address urban hydrologic and ecological impacts of the built environment, but GI practice has only been studied from a limited set of climatic conditions and disciplinary approaches. Here, we evaluate GI features in a semiarid city from the perspective of soil ecology through the application of soil nematode community analysis...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28724102/impact-of-biochar-organic-and-inorganic-carbon-on-soil-co2-and-n2o-emissions
#15
Rivka B Fidel, David A Laird, Timothy B Parkin
Biochar has been shown to influence soil CO and NO emissions following application to soil, but the presence of carbonates in biochars has largely confounded efforts to differentiate among labile and recalcitrant C pools in biochar and establish their timeframe of influence. Understanding the mechanism, magnitude, and duration of biochar C pools' influence on C and N dynamics is imperative to successful implementation of biochar for C sequestration. Here we therefore aim to assess biochar organic and inorganic C pool impacts on CO and NO emissions from soil amended with two untreated biochars, inorganic carbon (as NaCO), acid (HCl) and bicarbonate (NaHCO) extracts of the biochars, and acid and bicarbonate/acid-washed biochars during a 140-d soil incubation...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28724097/influence-of-long-term-application-of-feedlot-manure-amendments-on-water-repellency-of-a-clay-loam-soil
#16
Jim J Miller, Bruce W Beasley, Paul Hazendonk, Craig F Drury, David S Chanasyk
Long-term application of feedlot manure to cropland may increase the quantity of soil organic carbon (C) and change its quality, which may influence soil water repellency. The objective was to determine the influence of feedlot manure type (stockpiled vs. composted), bedding material (straw [ST] vs. woodchips [WD]), and application rate (13, 39, or 77 Mg ha) on repellency of a clay loam soil after 17 annual applications. The repellency was determined on all 14 treatments using the water repellency index ( index), the water drop penetration time (WDPT) method, and molarity of ethanol (MED) test...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28724093/persistence-of-ascaris-spp-ova-in-tropical-soil-cultivated-with-eucalyptus-and-fertilized-with-municipal-biosolids
#17
Marianne F de Faria, Iraê A Guerrini, Fernando C Oliveira, Maria Inês Z Sato, Elayse M Hachich, José Raimundo S Passos, Lívia M L Goulart, Thiago T de S Silva, José L Gava, Joel C Furches, Jason James, Robert B Harrison
In many countries, the main reason for severely restricting or outright banning the land application of class B biosolids is the lack of risk assessment for adverse human health impacts. Among pathogens that are not often studied are helminth ova, including that of the spp. Almost all of the knowledge about the persistence of spp. ova in soils fertilized with biosolids is based on studies developed in North America, Europe, and Asia. These studies have almost always been conducted under temperate climate conditions, which may cause erroneous interpretations when the conclusions are extrapolated to tropical regions such as those found in Brazil...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28724089/grower-analysis-of-organic-matter-amendments-in-california-orchards
#18
Sat Darshan S Khalsa, Patrick H Brown
Organic matter amendments supply crop nutrients and enhance soil health, yet information specific to orchards is lacking. A survey was conducted to analyze use of these materials by California almond [ (Mill.) D.A. Webb] growers. Significant differences were observed for benefits, concerns, and accessibility to manure and green waste sources and between users and nonusers. Use patterns were significantly influenced by heavy and light users, farm size, and geographic region. Enhanced soil biology was the main benefit attributed to organic matter amendments by both users and nonusers...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28724086/long-term-changes-in-grassland-soil-phosphorus-with-fertilizer-application-and-withdrawal
#19
Barbara J Cade-Menun, Donnacha G Doody, Corey W Liu, Catherine J Watson
Long-term phosphorus (P) applications can increase soil P concentrations in excess of agronomic optima, posing a risk to water quality. Once fertilization stops, however, it may take time for soil P concentrations to decline. Whereas P fertilization adds orthophosphate, little is known about changes in other soil P forms during P buildup and drawdown. This study examined changes in P pools (total P, Olsen P, Mehlich P, and water-extractable P) and P forms determined by P-nuclear magnetic resonance spectroscopy (P-NMR) in grazed grassland plots from Northern Ireland...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28724069/a-distinct-genetic-cluster-in-cultivated-chickpea-as-revealed-by-genome-wide-marker-discovery-and-genotyping
#20
Stefano Pavan, Concetta Lotti, Angelo R Marcotrigiano, Rosa Mazzeo, Nicoletta Bardaro, Valentina Bracuto, Francesca Ricciardi, Francesca Taranto, Nunzio D'Agostino, Adalgisa Schiavulli, Claudio De Giovanni, Cinzia Montemurro, Gabriella Sonnante, Luigi Ricciardi
The accurate description of plant biodiversity is of utmost importance to efficiently address efforts in conservation genetics and breeding. Herein, we report the successful application of a genotyping-by-sequencing (GBS) approach in chickpea ( L.), resulting in the characterization of a cultivated germplasm collection with 3187 high-quality single nucleotide polymorphism (SNP) markers. Genetic structure inference, principal component analysis, and hierarchical clustering all indicated the identification of a genetic cluster corresponding to black-seeded genotypes traditionally cultivated in Southern Italy...
July 2017: Plant Genome
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