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https://www.readbyqxmd.com/read/29241117/influence-of-direct-and-alternating-current-electric-fields-on-efficiency-promotion-and-leaching-risk-alleviation-of-chelator-assisted-phytoremediation
#1
Jie Luo, Limei Cai, Shihua Qi, Jian Wu, Xiaowen Sophie Gu
Direct and alternating current electric fields with various voltages were used to improve the decontamination efficiency of chelator assisted phytoremediation for multi-metal polluted soil. The alleviation effect of electric field on leaching risk caused by chelator application during phytoremediation process was also evaluated. Biomass yield, pollutant uptake and metal leaching retardation under alternating current (AC) and direct current (DC) electric fields were compared. The biomass yield of Eucalyptus globulus under AC fields with various voltages (2, 4 and 10 V) were 3...
December 11, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29197060/repellency-potential-of-essential-oils-against-housefly-musca-domestica-l
#2
Nitin Chauhan, Anushree Malik, Satyawati Sharma
In present study, the essential oils such as Mentha piperita (mentha oil, M.O), Cymbopogan citratus (lemongrass oil, LG.O), Citrus sinensis (orange oil, O.O), and Eucalyptus globulus (eucalyptus oil, E.O) were evaluated for repellency against housefly (Musca domestica) in a specially designed chamber. Further, to study any synergistic effect, essential oil combinations, i.e., M.O + LG.O, M.O + O.O, and M.O + E.O, were screened at 50:50 and 70:30 ratios. The results showed superior repellency of mentha and mentha + lemongrass (70:30) with RC95 value of 0...
December 2, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29177476/functional-relationships-between-wood-structure-and-vulnerability-to-xylem-cavitation-in-races-of-eucalyptus-globulus-differing-in-wood-density
#3
Antonio José Barotto, Silvia Monteoliva, Javier Gyenge, Alejandro Martinez-Meier, María Elena Fernandez
Wood density can be considered as a measure of the internal wood structure, and it is usually used as a proxy measure of other mechanical and functional traits. Eucalyptus is one of the most important commercial forestry genera worldwide, but the relationship between wood density and vulnerability to cavitation in this genus has been little studied. The analysis is hampered by, among other things, its anatomical complexity, so it becomes necessary to address more complex techniques and analyses to elucidate the way in which the different anatomical elements are functionally integrated...
November 21, 2017: Tree Physiology
https://www.readbyqxmd.com/read/29174903/boosting-bioethanol-production-from-eucalyptus-wood-by-whey-incorporation
#4
Manuel Cunha, Aloia Romaní, Margarida Carvalho, Lucília Domingues
The mixture of Eucalyptus globulus wood (EGW) and cheese whey powder (CWP) was proposed for intensification of simultaneous saccharification and fermentation (SSF) at high temperature and solid loadings using the industrial Saccharomyces cerevisiae Ethanol Red® strain. High ethanol concentration (93 g/L), corresponding to 94% ethanol yield, was obtained at 35 °C from 37% of solid mixture using cellulase and β-galactosidase enzymes (24.2 FPU/g and 20.0 U/g, respectively). The use of CWP mixed with pretreated EGW increased the ethanol concentration in 1...
November 10, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29154781/eucalyptus-globulus-extract-protects-against-uvb-induced-photoaging-by-enhancing-collagen-synthesis-via-regulation-of-tgf-%C3%AE-smad-signals-and-attenuation-of-ap-1
#5
Bom Park, Eunson Hwang, Seul A Seo, Jin-Gyeong Cho, Jung-Eun Yang, Tae-Hoo Yi
UV irradiation triggers the overproduction of matrix metalloproteinases and collagen degradation, which in turn causes increased pigmentation, dryness, and deep wrinkling of the skin. These chronic symptoms are collectively referred to as photoaging. Eucalyptus globulus is an evergreen tree that is widely used in cosmetics because of its antimicrobial activity. In this study, we investigated the protective effect of 50% ethanol extracts of Eucalyptus globulus on UV-induced photoaging in vitro and in vivo. Normal human dermal fibroblasts were treated with Eucalyptus globulus at concentrations ranging from 1 to 100 μg/mL after UVB or non-UVB irradiation...
November 14, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/29151634/fungal-planet-description-sheets-558-624
#6
P W Crous, M J Wingfield, T I Burgess, G E St J Hardy, P A Barber, P Alvarado, C W Barnes, P K Buchanan, M Heykoop, G Moreno, R Thangavel, S van der Spuy, A Barili, S Barrett, S O Cacciola, J F Cano-Lira, C Crane, C Decock, T B Gibertoni, J Guarro, M Guevara-Suarez, V Hubka, M Kolařík, C R S Lira, M E Ordoñez, M Padamsee, L Ryvarden, A M Soares, A M Stchigel, D A Sutton, A Vizzini, B S Weir, K Acharya, F Aloi, I G Baseia, R A Blanchette, J J Bordallo, Z Bratek, T Butler, J Cano-Canals, J R Carlavilla, J Chander, R Cheewangkoon, R H S F Cruz, M da Silva, A K Dutta, E Ercole, V Escobio, F Esteve-Raventós, J A Flores, J Gené, J S Góis, L Haines, B W Held, M Horta Jung, K Hosaka, T Jung, Ž Jurjević, V Kautman, I Kautmanova, A A Kiyashko, M Kozanek, A Kubátová, M Lafourcade, F La Spada, K P D Latha, H Madrid, E F Malysheva, P Manimohan, J L Manjón, M P Martín, M Mata, Z Merényi, A Morte, I Nagy, A-C Normand, S Paloi, N Pattison, J Pawłowska, O L Pereira, M E Petterson, B Picillo, K N A Raj, A Roberts, A Rodríguez, F J Rodríguez-Campo, M Romański, M Ruszkiewicz-Michalska, B Scanu, L Schena, M Semelbauer, R Sharma, Y S Shouche, V Silva, M Staniaszek-Kik, J B Stielow, C Tapia, P W J Taylor, M Toome-Heller, J M C Vabeikhokhei, A D van Diepeningen, N Van Hoa, Van Tri M, N P Wiederhold, M Wrzosek, J Zothanzama, J Z Groenewald
Novel species of fungi described in this study include those from various countries as follows: Australia: Banksiophoma australiensis (incl. Banksiophoma gen. nov.) on Banksia coccinea, Davidiellomycesaustraliensis (incl. Davidiellomyces gen. nov.) on Cyperaceae, Didymocyrtis banksiae on Banksia sessilis var. cygnorum, Disculoides calophyllae on Corymbia calophylla, Harknessia banksiae on Banksia sessilis, Harknessia banksiae-repens on Banksia repens, Harknessia banksiigena on Banksia sessilis var. cygnorum, Harknessia communis on Podocarpus sp...
June 2017: Persoonia
https://www.readbyqxmd.com/read/29148282/macrocarpal-c-isolated-from-eucalyptus-globulus-inhibits-dipeptidyl-peptidase-4-in-an-aggregated-form
#7
Eisuke Kato, Kazuhiro Kawakami, Jun Kawabata
Dipeptidyl peptidase 4 (DPP-4) inhibitors are used for the treatment of type-2 diabetes mellitus. Various synthetic inhibitors have been developed to date, and plants containing natural DPP-4 inhibitors have also been identified. Here, 13 plant samples were tested for their DPP-4 inhibitory activity. Macrocarpals A-C were isolated from Eucalyptus globulus through activity-guided fractionation and shown to be DPP-4 inhibitors. Of these, macrocarpal C showed the highest inhibitory activity, demonstrating an inhibition curve characterised by a pronounced increase in activity within a narrow concentration range...
December 2018: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/29067033/events-associated-with-early-age-related-decline-in-adventitious-rooting-competence-of-eucalyptus-globulus-labill
#8
Márcio L Aumond, Artur T de Araujo, Camila F de Oliveira Junkes, Márcia R de Almeida, Hélio N Matsuura, Fernanda de Costa, Arthur G Fett-Neto
The development of adventitious roots is affected by several factors, including the age of the cutting donor plant, which negatively affects rooting capacity. Eucalyptus globulus quickly loses rooting capacity of cuttings as the donor plant ages, although the molecular and biochemical mechanisms behind this process are still unclear. To better understand the bases of rooting competence loss in E. globulus, the time required for a significant decline in rhizogenic ability without exogenous auxin was determined in microcuttings derived from donor plants of different ages after sowing...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28970174/antimicrobial-and-antibiofilm-activities-of-nanoemulsions-containing-eucalyptus-globulus-oil-against-pseudomonas-aeruginosa-and-candida-spp
#9
Priscilla Maciel Quatrin, Camila Marina Verdi, Márcia Ebling de Souza, Samantha Nunes de Godoi, Bruna Klein, Andre Gundel, Roger Wagner, Rodrigo de Almeida Vaucher, Aline Ferreira Ourique, Roberto Christ Vianna Santos
Candida species are the main responsible microorganisms for causing fungal infections worldwide, and Candida albicans is most frequently associated with infectious processes. Pseudomonas aeruginosa is a gram-negative bacterium commonly found in immunocompromised patients. The infection persistence caused by these microorganisms is often related to antimicrobial resistance and biofilm formation. In this context, the objective of the present study was to prepare and characterize nanoemulsions containing Eucalyptus globulus oil and to verify its antimicrobial and antibiofilm activities against P...
September 29, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28917870/ultra-high-pressure-modified-cellulosic-fibres-with-antimicrobial-properties
#10
Ana M Salgueiro, Mauro D Santos, Jorge A Saraiva, Filipe Almeida, Isabel Sousa, João Tedim, Helena I S Nogueira, Dmitry V Evtuguin
In this work bleached E. globulus kraft pulp was doped with polyhexamethylene biguanide (PHMB) from an aqueous solution or from a suspension of silica capsules (PHMB@silica) by impregnation under atmospheric or ultra-high pressure (UHP) conditions (500MPa). The antimicrobial properties of pulps were evaluated towards gram-negative E. coli and gram-positive L. innocua bacteria. PHMB loads below 500mg per kg of pulp revealed negligible bacteriostatic properties, whereas PHMB loads of ca 3000-4000mg per kg demonstrated bactericidal properties of pulp without significant deterioration of its mechanical strength...
November 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28916319/inhibition-of-growth-and-biofilm-formation-of-clinical-bacterial-isolates-by-nio-nanoparticles-synthesized-from-eucalyptus-globulus-plants
#11
Samia Saleem, Bilal Ahmed, Mohammad Saghir Khan, Majed Al-Shaeri, Javed Musarrat
Nanotechnology based therapeutics has emerged as a promising approach for augmenting the activity of existing antimicrobials due to the unique physical and chemical properties of nanoparticles (NPs). Nickel oxide nanoparticles (NiO-NPs) have been suggested as prospective antibacterial and antitumor agent. In this study, NiO-NPs have been synthesized by a green approach using Eucalyptus globulus leaf extract and assessed for their bactericidal activity. The morphology and purity of synthesized NiO-NPs determined through various spectroscopic techniques like UV-Visible, FT-IR, XRD, EDX and electron microscopy differed considerably...
October 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28898992/amphistomatic-leaf-surfaces-independently-regulate-gas-exchange-in-response-to-variations-in-evaporative-demand
#12
Freya Richardson, Timothy J Brodribb, Gregory J Jordan
The occurrence of amphistomatic leaves (stomata on both surfaces) versus hypostomatic leaves (stomata limited to the lower or abaxial surface) has strong associations with environment. Amphistomy provides the advantage of higher conductance of CO2 for photosynthesis, however, unless the stomata on both leaf surfaces can be independently controlled in response to environmental cues, amphistomy may lead to inefficient gas exchange. While previous studies have found evidence that stomata can operate independently across and between surfaces of dorsiventral leaves, we investigate whether an independent stomatal response can be induced for isobilateral leaves by largely natural conditions...
July 1, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28800692/does-the-developmental-stage-and-composition-of-riparian-forest-stand-affect-ecosystem-functioning-in-streams
#13
Sahadevan Seena, Francisco Carvalho, Fernanda Cássio, Cláudia Pascoal
A common watershed restoration practice to improve water quality and stream ecosystem functions and services is replanting riparian corridors with plant species that may differ from those of natural communities. This restoration practice may have consequences on the aquatic ecosystem processes because organisms obtain energy from leaf litter inputs of the riparian zones. Leaf litter decomposition in streams is a vital ecosystem-level process, which depends on the activity of microorganisms and invertebrates...
December 31, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28770050/resource-allocation-tradeoffs-in-caddisflies-facing-multiple-stressors
#14
Francisco Correa-Araneda, Ana Basaguren, Roberto T Abdala-Díaz, Alan Mosele Tonin, Luz Boyero
The replacement of native forests by exotic tree monocultures, such as those of Eucalyptus, decreases the quality of leaf litter inputs to streams and often reduces riparian cover, which can elevate water temperature. The combined effects of these stressors on the survival and performance of detritivores may be important, as detritivore species loss leads to reduced litter breakdown, a key ecosystem process. Potential loss of cased caddisfly larvae is of particular concern because they are the predominant detritivores in many streams, they are sensitive to warming, and they expend energy on building and carrying their cases, which may be an added burden under times of stress...
July 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28709043/improvement-effects-of-cytokinin-on-edta-assisted-phytoremediation-and-the-associated-environmental-risks
#15
Jie Luo, Limei Cai, Shihua Qi, Jian Wu, X W Sophie Gu
Soil samples containing excess Cd (0.82 mg kg(-1)), Pb (92.7 mg kg(-1)) and Cu (72.7 mg kg(-1)) relative to their corresponding safe thresholds (0.3, 80 and 50 mg kg(-1), respectively) from a notorious e-waste disposing and recycling place in southern China were phytoremediated with EDTA addition to evaluate the promotion effects of cytokinin on the remediation efficiency of Eucalyptus globulus. Biomass production of the plant, evapotranspiration amount of the soil, metals accumulation in plant organs and the volume of leachate under various treatments were compared...
October 2017: Chemosphere
https://www.readbyqxmd.com/read/28691021/evaluation-of-stability-and-in-vitro-security-of-nanoemulsions-containing-eucalyptus-globulus-oil
#16
Samantha Nunes de Godoi, Priscilla Maciel Quatrin, Michele Rorato Sagrillo, Kátia Nascimento, Roger Wagner, Bruna Klein, Roberto Christ Vianna Santos, Aline Ferreira Ourique
Essential oil of Eucalyptus globulus presents several pharmacological properties. However, their therapeutic efficacy may be affected by limitations due to several conditions, rendering it difficult to obtain stable and effective pharmaceutical formulations. The use of nanotechnology is an alternative to improve their characteristics aiming to ensure their stability and effectiveness. Furthermore, studies about the possible toxic effects of nanostructures are necessary to evaluate safety when the formulation comes into contact with human cells...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28679070/microsatellite-analysis-of-population-structure-in-eucalyptus-globulus
#17
Joana Costa, René E Vaillancourt, Dorothy A Steane, Rebecca C Jones, Cristina Marques
Eucalyptus globulus subsp. globulus Labill. (Tasmanian Blue Gum), native to southeast Australia, is a benchmark species for the pulp and paper industry. We genotyped 397 trees from 16 populations of E. globulus representing the native diversity in Australia using 24 microsatellite loci. Eight genetically distinct groups were detected, consistent with genetic groupings detected in previous quantitative and molecular studies. A sample of 29 Portuguese individuals was added to help clarify the origin of the Portuguese landrace...
July 5, 2017: Genome Génome / Conseil National de Recherches Canada
https://www.readbyqxmd.com/read/28637361/antioxidant-activity-of-phenolic-compounds-from-extracts-of-eucalyptus-globulus-and-melaleuca-styphelioides-and-their-protective-role-on-d-glucose-induced-hyperglycemic-stress-and-oxalate-stress-in-nrk-49fcells
#18
Divya Ganesan, Eman Al-Sayed, Abhishek Albert, Eldho Paul, Abdel Nasser B Singab, Selvam Govindan Sadasivam, Luciano Saso
Phytochemicals serve as potential therapeutic agents for the prevention and treatment of diseases. In this study, we elucidate the renoprotective activity of compounds isolated from Eucalyptus globulus and Melaleuca styphelioides extracts in glucose- and oxalate-challenged NRK-49F cell model. The antioxidant potential of isolated compounds was evaluated based on their effect on antioxidant enzyme activities and lipid peroxidation levels. The results demonstrated that exposure of NRK-49F cells to glucose and oxalate stress augmented cell damage and attenuated antioxidant enzyme activities...
June 21, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28611658/neuroprotective-and-anti-aging-potentials-of-essential-oils-from-aromatic-and-medicinal-plants
#19
REVIEW
Muhammad Ayaz, Abdul Sadiq, Muhammad Junaid, Farhat Ullah, Fazal Subhan, Jawad Ahmed
The use of essential oils (EOs) and their components is known since long in traditional medicine and aromatherapy for the management of various diseases, and is further increased in the recent times. The neuroprotective and anti-aging potentials of EOs and their possible mechanism of actions were evaluated by numerous researchers around the globe. Several clinically important EOs and their components from Nigella sativa, Acorus gramineus, Lavandula angustifolia, Eucalyptus globulus, Mentha piperita, Rosmarinus officinalis, Jasminum sambac, Piper nigrum and so many other plants are reported for neuroprotective effects...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28561806/genetic-based-interactions-among-tree-neighbors-identification-of-the-most-influential-neighbors-and-estimation-of-correlations-among-direct-and-indirect-genetic-effects-for-leaf-disease-and-growth-in-eucalyptus-globulus
#20
J Costa E Silva, B M Potts, A R Gilmour, R J Kerr
An individual's genes may influence the phenotype of neighboring conspecifics. Such indirect genetic effects (IGEs) are important as they can affect the apparent total heritable variance in a population, and thus the response to selection. We studied these effects in a large, pedigreed population of Eucalyptus globulus using variance component analyses of Mycosphearella leaf disease, diameter growth at age 2 years, and post-infection diameter growth at ages 4 and 8 years. In a novel approach, we initially modeled IGEs using a factor analytic (FA) structure to identify the most influential neighbor positions, with the FA loadings being position-specific regressions on the IGEs...
September 2017: Heredity
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