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https://www.readbyqxmd.com/read/28527016/chemical-derivatization-of-metabolite-mass-profiling-of-the-recretohalophyte-aeluropus-lagopoides-revealing-salt-stress-tolerance-mechanism
#1
Murali Krishna Paidi, Parinita Agarwal, Prashant More, Pradeep K Agarwal
Plants are the primary producers of food for human being. Their intracellular environment alternation is influenced by abiotic stress factors such as drought, heat and soil salinity. Aeluropus lagopoides is a strong halophyte that grows with ease under high saline muddy banks of creeks of Gujarat, India. To study the response of salinity on metabolite changes in Aeluropus, three treatments, i.e. control, salinity and recovery, were selected for both shoot and root tissue. The cytosolic metabolite state was analysed by molecular chemical derivatization gas chromatography mass profiling...
May 19, 2017: Marine Biotechnology
https://www.readbyqxmd.com/read/28521508/the-phytoprotective-effects-of-arbuscular-mycorrhizal-fungi-on-enterolobium-contorstisiliquum-vell-morong-in-soil-containing-coal-mine-tailings
#2
Marcos Leandro Dos Santos, Cláudio Roberto Fonsêca Sousa Soares, Jucinei José Comin, Paulo Emílio Lovato
The purpose of this study was to evaluate effects of arbuscular mycorrhizal fungi (AMF) on pacara earpod tree (Enterolobium contorstisiliquum) growth and phytoprotection in soil containing coal mining waste. A greenhouse experiment was carried out with three inoculation treatments groups (non-inoculated, inoculated with Rhizophagus clarus and inoculated with Acaulospora colombiana) in two substrates (0 or 30% tailings). After 90 days the seedlings were collected to quantify growth parameters, quality, mycorrhizal root colonization rate and leaf content of chlorophylls and carotenoids...
May 19, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28473836/quantitative-genetic-analysis-reveals-potential-to-genetically-improve-fruit-yield-and-drought-resistance-simultaneously-in-coriander
#3
Mostafa Khodadadi, Hamid Dehghani, Mokhtar Jalali Javaran
Enhancing water use efficiency of coriander (Coriandrum sativum L.) is a major focus for coriander breeding to cope with drought stress. The purpose of this study was; (a) to identify the predominant mechanism(s) of drought resistance in coriander and (b) to evaluate the genetic control mechanism(s) of traits associated with drought resistance and higher fruit yield. To reach this purpose, 15 half-diallel hybrids of coriander and their six parents were evaluated under well-watered and water deficit stressed (WDS) in both glasshouse lysimetric and field conditions...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28462426/the-true-effect-of-mass-shootings-on-americans
#4
Daniel W Webster
No abstract text is available yet for this article.
May 16, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28462425/handgun-acquisitions-in-california-after-two-mass-shootings
#5
David M Studdert, Yifan Zhang, Jonathan A Rodden, Rob J Hyndman, Garen J Wintemute
Background: Mass shootings are common in the United States. They are the most visible form of firearm violence. Their effect on personal decisions to purchase firearms is not well-understood. Objective: To determine changes in handgun acquisition patterns after the mass shootings in Newtown, Connecticut, in 2012 and San Bernardino, California, in 2015. Design: Time-series analysis using seasonal autoregressive integrated moving-average (SARIMA) models...
May 16, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28461725/nmr-based-metabolomic-analysis-of-wild-greenhouse-and-in-vitro-regenerated-shoots-of-cymbopogon-schoenanthus-subsp-proximus-with-gc-ms-assessment-of-proximadiol
#6
Asmaa Abdelsalam, Ehab Mahran, Kamal Chowdhury, Arezue Boroujerdi, Ahmed El-Bakry
Cymbopogon schoenanthus subsp. proximus is a wild plant distributed in subtropical and east Africa extending from the north to the southern parts of Egypt. Widely used in folk medicine, it is the source of the diuretic sesquiterpene proximadiol. Nuclear magnetic resonance metabolomic analysis of polar extracts of shoots from wild, greenhouse, somatic embryos, and direct and indirect organogenic in vitro cultures was carried out. Metabolic profiling yielded 39 compounds, of which common metabolites were 15 (38...
April 2017: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
https://www.readbyqxmd.com/read/28456128/natural-herbicide-activity-of-satureja-hortensis-l-essential-oil-nanoemulsion-on-the-seed-germination-and-morphophysiological-features-of-two-important-weed-species
#7
Hossein Hazrati, Mohammad Jamal Saharkhiz, Mehrdad Niakousari, Mahmoodreza Moein
The aim of the present study was to obtain an oil/water (O/W) nanoemulsion (NE) containing garden savory (Satureja hortensis) essential oil (EO) and evaluating its herbicidal activity against Amaranthus retroflexus and Chenopodium album. Gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) were employed to determine the chemical composition of the EO. Carvacrol (55.6%) and γ-terpinene (31.9%) were the major EO components. Low energy method was applied, allowing achievement of EO nanodroplets...
August 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28444904/a-bell-pepper-cultivar-tolerant-to-chilling-enhanced-nitrogen-allocation-and-stress-related-metabolite-accumulation-in-the-roots-in-response-to-low-root-zone-temperature
#8
Moses Kwame Aidoo, Tal Sherman, Naftali Lazarovitch, Aaron Fait, Shimon Rachmilevitch
Two bell pepper (Capsicum annuum) cultivars, differing in their response to chilling, were exposed to three levels of root zone temperatures. Gas exchange, shoot and root phenology, and the pattern of change of the central metabolites and secondary metabolites caffeate and benzoate in the leaves and roots were profiled. Low root zone temperature significantly inhibited gaseous exchange, with a greater effect on the sensitive commercial pepper hybrid (Canon) than on the new hybrid bred to enhance abiotic stress tolerant (S103)...
April 26, 2017: Physiologia Plantarum
https://www.readbyqxmd.com/read/28444412/biochemical-and-genetic-analyses-of-n-metabolism-in-maize-testcross-seedlings-1-leaves
#9
Ignacio Trucillo Silva, Hari Kishan R Abbaraju, Lynne P Fallis, Hongjun Liu, Michael Lee, Kanwarpal S Dhugga
Aside from the identification of 32 QTL for N metabolism in the seedling leaves of a maize testcross population, alanine aminotransferase was found to be a central enzyme in N assimilation. Excessive application of nitrogen (N) fertilizer to grow commercial crops like maize is a cause of concern because of the runoff of excess N into streams and rivers. Breeding maize with improved N use efficiency (NUE) would reduce environmental pollution as well as input costs for the farmers. An understanding of the genetics underlying N metabolism is key to breeding for NUE...
April 25, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28437609/source-and-biological-response-of-biochar-organic-compounds-released-into-water-relationships-with-bio-oil-composition-and-carbonization-degree
#10
Michele Ghidotti, Daniele Fabbri, Ondřej Mašek, Colin Logan Mackay, Marco Montalti, Andreas Hornung
Water-soluble organic compounds (WSOCs) were extracted from corn stalk biochar produced at increasing pyrolysis temperatures (350-650 °C) and from the corresponding vapors, collected as bio-oil. WSOCs were characterized by gas chromatography (semivolatile fraction), negative electron spray ionization high resolution mass spectrometry (hydrophilic fraction) and fluorescence spectroscopy. The pattern of semivolatile WSOCs in bio-oil was dominated by aromatic products from lignocellulose, while in biochar was featured by saturated carboxylic acids from hemi/cellulose and lipids with concentrations decreasing with decreasing H/C ratios...
May 8, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28435686/apple-dwarfing-rootstocks-exhibit-an-imbalance-in-carbohydrate-allocation-and-reduced-cell-growth-and-metabolism
#11
Toshi M Foster, Peter A McAtee, Chethi N Waite, Helen L Boldingh, Tony K McGhie
Apple dwarfing rootstocks cause earlier shoot termination and reduced root and shoot mass. To identify physiological factors responsible for rootstock-induced growth restriction, we compared vascular-enriched gene expression between two dwarfing rootstocks ('M27' and 'M9') and the vigorous rootstock 'M793' using RNA sequencing and quantitative reverse transcriptase PCR. Differentially expressed genes common to both dwarfing rootstocks belonged to five main biological processes: (1) primary metabolism, (2) cell wall synthesis and modification, (3) secondary metabolism, (4) hormone signalling and response and (5) redox homeostasis...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28425052/dmso-assisted-electrospray-ionization-for-the-detection-of-small-peptide-hormones-in-urine-by-dilute-and-shoot-liquid-chromatography-high-resolution-mass-spectrometry
#12
Péter Judák, Janelle Grainger, Catrin Goebel, Peter Van Eenoo, Koen Deventer
The mobile phase additive (DMSO) has been described as a useful tool to enhance electrospray ionization (ESI) of peptides and proteins. So far, this technique has mainly been used in proteomic/peptide research, and its applicability in a routine clinical laboratory setting (i.e., doping control analysis) has not been described yet. This work provides a simple, easy to implement screening method for the detection of doping relevant small peptides (GHRPs, GnRHs, GHS, and vasopressin-analogues) with molecular weight less than 2 kDa applying DMSO in the mobile phase...
April 19, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28421372/vascular-development-of-the-grapevine-vitis-vinifera-l-inflorescence-rachis-in-response-to-flower-number-plant-growth-regulators-and-defoliation
#13
Aude M Gourieroux, Bruno P Holzapfel, Margaret E McCully, Geoffrey R Scollary, Suzy Y Rogiers
The grapevine inflorescence is a determinate panicle and as buds emerge, shoot, flower and rachis development occur simultaneously. The growth and architecture of the rachis is determined by genetic and environmental factors but here we examined the role of flower and leaf number as well as hormones on its elongation and vascular development. The consequences of rachis morphology and vascular area on berry size and composition were also assessed. One week prior to anthesis, Merlot and Cabernet Sauvignon field vines were exposed to manual flower removal, exogenous plant growth regulators or pre-bloom leaf removal...
April 18, 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/28419154/salt-stress-induces-changes-in-the-proteomic-profile-of-micropropagated-sugarcane-shoots
#14
Lucas Z Passamani, Roberta R Barbosa, Ricardo S Reis, Angelo S Heringer, Patricia L Rangel, Claudete Santa-Catarina, Clícia Grativol, Carlos F M Veiga, Gonçalo A Souza-Filho, Vanildo Silveira
Salt stress is one of the most common stresses in agricultural regions worldwide. In particular, sugarcane is affected by salt stress conditions, and no sugarcane cultivar presently show high productivity accompanied by a tolerance to salt stress. Proteomic analysis allows elucidation of the important pathways involved in responses to various abiotic stresses at the biochemical and molecular levels. Thus, this study aimed to analyse the proteomic effects of salt stress in micropropagated shoots of two sugarcane cultivars (CB38-22 and RB855536) using a label-free proteomic approach...
2017: PloS One
https://www.readbyqxmd.com/read/28411570/impacts-of-coal-fly-ash-on-plant-growth-and-accumulation-of-essential-nutrients-and-trace-elements-by-alfalfa-medicago-sativa-grown-in-a-loessial-soil
#15
Honghua He, Zhigang Dong, Qi Peng, Xia Wang, Chenbin Fan, Xingchang Zhang
Coal fly ash (CFA) is a problematic solid waste all over the world. One distinct beneficial reuse of CFA is its utilization in land application as a soil amendment. A pot experiment was carried out to assess the feasibility of using CFA to improve plant growth and increase the supply of plant-essential elements and selenium (Se) of a loessial soil for agricultural purpose. Plants of alfalfa (Medicago sativa) were grown in a loessial soil amended with different rates (5%, 10%, 20% and 40%) of CFA for two years and subjected to four successive cuttings...
April 12, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28403866/erratum-to-pre-hospital-management-of-mass-casualty-civilian-shootings-a-systematic-literature-review
#16
Conor D A Turner, David J Lockey, Marius Rehn
No abstract text is available yet for this article.
April 13, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28401460/enhanced-production-of-berberine-in-in-vitro-regenerated-cell-of-tinospora-cordifolia-and-its-analysis-through-lcms-qtof
#17
Jitendra Mittal, Madan Mohan Sharma
Tinospora cordifolia is a prioritized medicinal plant and having an immense medicinal importance especially in Indian medicinal system. But this plant needs a regeneration protocol for its rapid propagation. An efficient regeneration protocol was developed for T. cordifolia using nodal explants. High frequency of multiple shoot formation was induced when the nodal segments were cultured on MS medium supplemented with BAP (1.0 mg L(-1)) and 2-iP (0.5 mg L(-1)). The highest mean number of shoots per nodal explant (7...
May 2017: 3 Biotech
https://www.readbyqxmd.com/read/28383248/xylem-and-phloem-based-transport-of-ceo2-nanoparticles-in-hydroponic-cucumber-plants
#18
Yuhui Ma, Xiao He, Peng Zhang, Zhiyong Zhang, Yayun Ding, Junzhe Zhang, Guohua Wang, Changjian Xie, Wenhe Luo, Jing Zhang, Lirong Zheng, Zhifang Chai, Ke Yang
Uptake and translocation of manufactured nanoparticles (NPs) in plants have drawn much attention due to their potential toxicity to the environment, including food webs. In this paper, the xylem and phloem based transport of CeO2 NPs in hydroponic cucumber plants was investigated using a split-root system. One half of the root system was treated with 200 or 2000 mg/L of CeO2 NPs for 3 days, whereas the other half remained untreated, with both halves sharing the same aerial part. The quantitative distribution and speciation of Ce in different plant tissues and xylem sap were analyzed by inductively coupled plasma-mass spectrometry, transmission electron microscope, X-ray absorption near edge structure, and X-ray fluorescence...
April 12, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28380562/metals-and-metalloids-in-wild-asparagus-at-uncontaminated-and-mining-contaminated-sites
#19
R Biddau, R Cidu
Wild edible plants are often considered healthier than crops because they are unaffected by fertilizers, herbicides, and pesticides. However, the occurrence of potentially toxic elements in wild plants is poorly known and needs to be assessed. In this study, 22 elements were determined by inductively coupled plasma mass spectrometry in wild asparagus ( L.). Asparagus shoots were collected in uncontaminated environments (20 sites) and in areas contaminated by past mining (15 sites) in Sardinia, Italy. Beryllium, Bi, Te, Tl, and U were not detected in asparagus (<0...
March 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28364791/effect-of-nitrogen-sources-on-some-morphological-characteristics-of-in-vitro-stevia-rebaudiana-bertoni
#20
F Akbari, A Arminian, D Kahrizi, A Fazeli
Stevia rebaudiana Bertoni belongs to Asteraceae family that leaves 200-300 times sweeter than sugar. Low seed fertility is one of the most important problems in Stevia production. So, Plant tissue culture is an efficient method for mass propagation of Stevia. In this research, we studied the effect of various concentrations of nitrogen on some morphological traits of stevia under in vitro conditions. We used axillary nodes as explants and they were cultured on Murashige and Skoog (MS) medium containing inorganic nitrogen sources i...
February 28, 2017: Cellular and Molecular Biology
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