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https://www.readbyqxmd.com/read/28223996/untargeted-metabotyping-lolium-perenne-reveals-population-level-variation-in-plant-flavonoids-and-alkaloids
#1
Mingshu Cao, Karl Fraser, Chris Jones, Alan Stewart, Thomas Lyons, Marty Faville, Brent Barrett
Metabolomics provides a powerful platform to characterize plants at the biochemical level, allowing a search for underlying genes and associations with higher level complex traits such as yield and nutritional value. Efficient and reliable methods to characterize metabolic variation in economically important species are considered of high value to the evaluation and prioritization of germplasm and breeding lines. In this investigation, a large-scale metabolomic survey was performed on a collection of diverse perennial ryegrass (Lolium perenne L...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28216234/optimal-modified-tracking-performance-for-mimo-networked-control-systems-with-communication-constraints
#2
Jie Wu, Zhu-Jun Zhou, Xi-Sheng Zhan, Huai-Cheng Yan, Ming-Feng Ge
This paper investigates the optimal modified tracking performance of multi-input multi-output (MIMO) networked control systems (NCSs) with packet dropouts and bandwidth constraints. Some explicit expressions are obtained by using co-prime factorization and the spectral decomposition technique. The obtained results show that the optimal modified tracking performance is related to the intrinsic properties of a given plant such as non-minimum phase (NMP) zeros, unstable poles, and their directions. Furthermore, the modified factor, packet dropouts probability and bandwidth also impact the optimal modified tracking performance of the NCSs...
February 16, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28196651/trace-element-concentrations-in-reef-associated-sediments-of-koswari-island-gulf-of-mannar-biosphere-reserve-southeast-coast-of-india
#3
S Krishnakumar, S Ramasamy, N Chandrasekar, T Simon Peter, V Gopal, Prince S Godson, N S Magesh
Extensive field work was conducted in order to assess the sediment pollution level and potential ecological risk on coral reef ecosystem. Thirty three surface sample was collected using grid sampling technique. The calcium carbonate and organic matter were primarily controlled by the distribution of coral rubbles and seagrass meadows. The concentration of trace elements is higher than the crustal average in few locations and the same result was derived from index calculations. However, the significant concentration of lead was observed throughout the study area...
February 11, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28193765/a-novel-chemical-inhibitor-of-aba-signaling-targets-all-aba-receptors
#4
Ya-Jin Ye, Lijuan Zhou, Xue Liu, Hao Liu, Deqiang Li, Minjie Cao, Haifeng Chen, Lin Xu, Jiankang Zhu, Yang Zhao
Abscisic acid (ABA), the most important stress-induced phytohormone, regulates seed dormancy, germination, plant senescence and abiotic stress response. ABA signaling is repressed by protein phosphatases 2C (PP2Cs), then ABA binds to its receptor of the PYR/PYL/RCAR family, which in turn inhibits PP2Cs and activates downstream ABA signaling. The agonist/antagonist of ABA receptors have the potential to unveil the ABA signaling machinery and to become lead compounds for agrochemicals, however, up to now, no broad-spectrum antagonists of ABA receptors blocking all PYR/PYL-PP2C interactions have been identified...
February 13, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28170149/essential-oil-and-bioactive-compounds-variation-in-myrtle-myrtus-communis-l-as-affected-by-seasonal-variation-and-salt-stress
#5
Zeinab Vafadar Shoshtari, Mehdi Rahimmalek, Mohammad Reza Sabzalian, Hossein Hosseini
The effect of different NaCl concentrations (control, 2, 4 and 6 dS m-1) and three harvesting times in different seasons including spring (9 April), summer (5 July) and fall (23 September) was evaluated on essential oil yield, composition, phenolic, flavonoid content and antioxidant activity of myrtle. Essential oil yield ranged from 0.2% in control and fall to 1.6% in moderate salinity (4 dS m-1) and spring season. The main constituents obtained from GC-MS analysis were α-pinene, 1,8-cineole, limonene, linalool, α-terpineol and linalyl acetate in which α-pinene ranged from 11...
February 7, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/28163712/seedusoon-a-new-software-program-to-improve-seed-stock-management-and-plant-line-exchanges-between-research-laboratories
#6
Céline Charavay, Stéphane Segard, Nathalie Pochon, Laurent Nussaume, Hélène Javot
Plant research is supported by an ever-growing collection of mutant or transgenic lines. In the past, a typical basic research laboratory would focus on only a few plant lines that were carefully isolated from collections of lines containing random mutations. The subsequent technological breakthrough in high-throughput sequencing, combined with novel and highly efficient mutagenesis techniques (including site-directed mutagenesis), has led to a recent exponential growth in plant line collections used by individual researchers...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28160173/effectiveness-of-so2-emission-control-policy-on-power-plants-in-the-yangtze-river-delta-china-post-assessment-of-the-11th-five-year-plan
#7
Jiani Tan, Joshua S Fu, Kan Huang, Cheng-En Yang, Guoshun Zhuang, Jian Sun
Facing the air pollution problems in China, emission control strategies have been implemented within the framework of national Five-Year Plan (FYP). According to the lack of post-assessment studies in the literature, this study assessed the effectiveness of the SO2 emission control policies on power plants after the 11th FYP (2006-2010) by modeling emission control scenarios. The idealized emission control policy (the PS90 scenario with assumption of 90% SO2 emission reduction from power plants) could reduce the SO2 and SO4(2-) concentrations by about 51 and 14%, respectively, over the Yangtze River Delta region...
February 3, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28149303/impact-of-leaf-traits-on-temporal-dynamics-of-transpired-oxygen-isotope-signatures-and-its-impact-on-atmospheric-vapor
#8
Maren Dubbert, Angelika Kübert, Christiane Werner
Oxygen isotope signatures of transpiration (δ E ) are powerful tracers of water movement from plant to global scale. However, a mechanistic understanding of how leaf morphological/physiological traits effect δ E is missing. A laser spectrometer was coupled to a leaf-level gas-exchange system to measure fluxes and isotopic signatures of plant transpiration under controlled conditions in seven distinct species (Fagus sylvatica, Pinus sylvestris, Acacia longifolia, Quercus suber, Coffea arabica, Plantago lanceolata, Oxalis triangularis)...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28139322/the-local-impact-of-a-coal-fired-power-plant-on-inorganic-mercury-and-methyl-mercury-distribution-in-rice-oryza-sativa-l
#9
Xiaohang Xu, Bo Meng, Chao Zhang, Xinbin Feng, Chunhao Gu, Jianyang Guo, Kevin Bishop, Zhidong Xu, Sensen Zhang, Guangle Qiu
Emission from coal-fired power plants is one of the major anthropogenic sources of mercury (Hg) in the environment, because emitted Hg can be quickly deposited nearby the source, attention is paid to the effects of coal-burning facilities on levels of toxic methyl-mercury (MeHg) in biota near such sources. Since rice is an agricultural crop that can bio-accumulate MeHg, the potential effects of a large Hg-emitting coal-fired power plant in Hunan Province, China on both inorganic Hg (Hg(II)) and MeHg distributions in rice was investigated...
January 27, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28135963/procedure-and-information-displays-in-advanced-nuclear-control-rooms-experimental-evaluation-of-an-integrated-design
#10
Yue Chen, Qin Gao, Fei Song, Zhizhong Li, Yufan Wang
In the main control rooms of nuclear power plants, operators frequently have to switch between procedure displays and system information displays. In this study, we proposed an operation-unit-based integrated design, which combines the two displays to facilitate the synthesis of information. We grouped actions that complete a single goal into operation units and showed these operation units on the displays of system states. In addition, we used different levels of visual salience to highlight the current unit and provided a list of execution history records...
January 30, 2017: Ergonomics
https://www.readbyqxmd.com/read/28129768/exposure-to-air-pollution-near-a-steel-plant-is-associated-with-reduced-heart-rate-variability-a-randomised-crossover-study
#11
Robin H Shutt, Lisa Marie Kauri, Scott Weichenthal, Premkumari Kumarathasan, Renaud Vincent, Errol M Thomson, Ling Liu, Mamun Mahmud, Sabit Cakmak, Robert Dales
BACKGROUND: Epidemiological studies have shown that as ambient air pollution (AP) increases the risk of cardiovascular mortality also increases. The mechanisms of this effect may be linked to alterations in autonomic nervous system function. We wished to examine the effects of industrial AP on heart rate variability (HRV), a measure of subtle changes in heart rate and rhythm representing autonomic input to the heart. METHODS: Sixty healthy adults were randomized to spend five consecutive 8-h days outdoors in one of two locations: (1) adjacent to a steel plant in the Bayview neighbourhood in Sault Ste Marie Ontario or (2) at a College campus, several kilometers from the plant...
January 28, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28126605/cognitive-engineering-and-health-informatics-applications-and-intersections
#12
A Zachary Hettinger, Emilie Roth, Ann M Bisantz
Cognitive engineering is an applied field with roots in both cognitive science and engineering that has been used to support design of information displays, decision support, human-automation interaction, and training in numerous high risk domains ranging from nuclear power plant control to transportation and defense systems. Cognitive engineering provides a set of structured, analytic methods for data collection and analysis that intersect with and complement methods of Cognitive Informatics. These methods support discovery of aspects of the work that make performance challenging, as well as the knowledge, skills, and strategies that experts use to meet those challenges...
January 23, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28126280/multivariate-statistical-evaluation-of-dissolved-trace-elements-and-a-water-quality-assessment-in-the-middle-reaches-of-huaihe-river-anhui-china
#13
Jie Wang, Guijian Liu, Houqi Liu, Paul K S Lam
A total of 211 water samples were collected from 53 key sampling points from 5-10th July 2013 at four different depths (0m, 2m, 4m, 8m) and at different sites in the Huaihe River, Anhui, China. These points monitored for 18 parameters (water temperature, pH, TN, TP, TOC, Cu, Pb, Zn, Ni, Co, Cr, Cd, Mn, B, Fe, Al, Mg, and Ba). The spatial variability, contamination sources and health risk of trace elements as well as the river water quality were investigated. Our results were compared with national (CSEPA) and international (WHO, USEPA) drinking water guidelines, revealing that Zn, Cd and Pb were the dominant pollutants in the water body...
January 23, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28117130/chlorination-induced-damage-and-recovery-in-marine-diatoms-assay-by-sytox%C3%A2-green-staining
#14
Srinivas Venkatnarayanan, P Sriyutha Murthy, Yarlagadda V Nancharaiah, Ramalingam Kirubagaran, Vayalam P Venugopalan
Phytoplankton entrained into cooling water systems of coastal power stations are subjected to acute chemical stress due to biocides (chlorine) used for biofouling control. They are subsequently released into the environment, where they may survive/recover or succumb. Experiments were conducted to evaluate the susceptibility of a centric (Chaetoceros lorenzianus) and pennate (Navicula sp.) diatom to in-plant administered concentrations of chlorine (0.2-0.5mg/L, TRO). Viability of cells exposed to chlorine was assessed by SYTOX® Green fluorimetry and was compared with other conventional end points like total cell counts, chlorophyll a content and cellular autofluorescence...
January 20, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28115979/application-of-3d-printing-to-prototype-and-develop-novel-plant-tissue-culture-systems
#15
Mukund R Shukla, Amritpal S Singh, Kevin Piunno, Praveen K Saxena, A Maxwell P Jones
BACKGROUND: Due to the complex process of designing and manufacturing new plant tissue culture vessels through conventional means there have been limited efforts to innovate improved designs. Further, development and availability of low cost, energy efficient LEDs of various spectra has made it a promising light source for plant growth in controlled environments. However, direct replacement of conventional lighting sources with LEDs does not address problems with uniformity, spectral control, or the challenges in conducting statistically valid experiments to assess the effects of light...
2017: Plant Methods
https://www.readbyqxmd.com/read/28115468/live-cell-analysis-of-dna-methylation-during-sexual-reproduction-in-arabidopsis-reveals-context-and-sex-specific-dynamics-controlled-by-noncanonical-rddm
#16
Mathieu Ingouff, Benjamin Selles, Caroline Michaud, Thiet M Vu, Frédéric Berger, Andrea J Schorn, Daphné Autran, Matthias Van Durme, Moritz K Nowack, Robert A Martienssen, Daniel Grimanelli
Cytosine methylation is a key epigenetic mark in many organisms, important for both transcriptional control and genome integrity. While relatively stable during somatic growth, DNA methylation is reprogrammed genome-wide during mammalian reproduction. Reprogramming is essential for zygotic totipotency and to prevent transgenerational inheritance of epimutations. However, the extent of DNA methylation reprogramming in plants remains unclear. Here, we developed sensors reporting with single-cell resolution CG and non-CG methylation in Arabidopsis...
January 1, 2017: Genes & Development
https://www.readbyqxmd.com/read/28111001/chlorine-dioxide-as-an-alternative-antifouling-biocide-for-cooling-water-systems-toxicity-to-larval-barnacle-amphibalanus-reticulatus-utinomi
#17
Srinivas Venkatnarayanan, P Sriyutha Murthy, Ramalingam Kirubagaran, Vayalam P Venugopalan
Chlorine dioxide (ClO2) is seen as an effective alternative to chlorine, which is widely used as an antifouling biocide. However, data on its efficacy against marine macrofoulants is scanty. In this study, acute toxicity of ClO2 to larval forms of the fouling barnacle Amphibalanus reticulatus was investigated. ClO2 treatment at 0.1mg/L for 20min elicited 45-63% reduction in naupliar metamorphosis, 70% inhibition of cyprid settlement and 80% inhibition of metamorphosis to juveniles. Increase in concentration to 0...
January 19, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28099497/assessing-the-mental-health-impact-of-the-2011-great-japan-earthquake-tsunami-and-radiation-disaster-on-elementary-and-middle-school-children-in-the-fukushima-prefecture-of-japan
#18
Mark Lieber
BACKGROUND: On March 11, 2011, a magnitude 9.0 earthquake occurred off of Japan's Pacific coast, which was followed by huge tsunamis that destroyed many coastal cities in the area. Due to the earthquake and subsequent tsunami, malfunctions occurred at the Fukushima Daiichi (Fukushima I) nuclear power plant, resulting in the release of radioactive material in the region. While recent studies have investigated the effects of these events on the mental health of adults in the region, no studies have yet been performed investigating similar effects among children...
2017: PloS One
https://www.readbyqxmd.com/read/28092743/stable-isotope-composition-of-mercury-forms-in-flue-gases-from-a-typical-coal-fired-power-plant-inner-mongolia-northern-china
#19
Shunlin Tang, Chaohui Feng, Xinbin Feng, Jianming Zhu, Ruoyu Sun, Huipeng Fan, Lina Wang, Ruiyang Li, Tonghua Mao, Ting Zhou
Mercury forms emitted from coal combustion via air pollution control devices are speculated to carry different Hg isotope signatures. Yet, their Hg isotope composition is still not reported. Here, we present the first onsite Hg isotope data for gaseous elemental Hg (GEM) and gaseous oxidized Hg (GOM) of flue gases from a typical lignite-fired power plant (CFPP). Significant mass dependent fractionation (MDF) and insignificant mass independent fractionation (MIF) are observed between feed coal and coal combustion products...
January 11, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28069190/rsm-and-ann-modeling-based-optimization-approach-for-the-development-of-ultrasound-assisted-liposome-encapsulation-of-piceid
#20
Shang-Ming Huang, Chia-Hung Kuo, Chun-An Chen, Yung-Chuan Liu, Chwen-Jen Shieh
Piceid, a naturally occurring derivative of resveratrol found in many plants, has recently been considered as a potential nutraceutical. However, its poorly water-soluble property could cause a coupled problem of biological activities concerning drug dispersion and absorption in human body, which is still unsolved now. Liposome, a well-known aqueous carrier for water-insoluble ingredients, is commonly applied in drug delivery systems. In this study, a feasible approach for solving the problem is that the targeted piceid was encapsulated into a liposomal formula as aqueous substrate to overcome its poor water-solubility...
May 2017: Ultrasonics Sonochemistry
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