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https://www.readbyqxmd.com/read/29438430/unravelling-the-bioherbicide-potential-of-eucalyptus-globulus-labill-biochemistry-and-effects-of-its-aqueous-extract
#1
Carolina G Puig, Manuel J Reigosa, Patrícia Valentão, Paula B Andrade, Nuria Pedrol
In the worldwide search for new strategies in sustainable weed management, the use of plant species able to produce and release phytotoxic compounds into the environment could be an effective alternative to synthetic herbicides. Eucalyptus globulus Labill. is known to be a source of biologically active compounds responsible for its phytotoxic and allelopathic properties. Our previous results demonstrated the bioherbicide potential of eucalyptus leaves incorporated into the soil as a green manure, probably through the release of phytotoxins into the soil solution...
2018: PloS One
https://www.readbyqxmd.com/read/29433388/eucalyptus-globulus-inhibits-inflammasome-activated-pro-inflammatory-responses-and-ameliorate-monosodium-urate-induced-peritonitis-in-murine-experimental-model
#2
Young-Eun Ji, Xiao Sun, Myong-Ki Kim, Wan Yi Li, Sang Woo Lee, Sushruta Koppula, Sang-Hyeun Yu, Han-Bi Kim, Tae-Bong Kang, Kwang-Ho Lee
Eucalyptus globulus Labill. (E. globulus, Myrtaceae) is used in Europe as a traditional folk remedy for inflammation-related disorders such as arthritis, diabetes, asthma, and gout. We investigated this study to evaluate the protective effects of E. globulus extract (EG) on inflammatory responses, and provide scientific and mechanistic evidence in in vitro and in vivo experimental models. LPS-stimulated murine bone marrow-derived macrophages (BMDMs) were used to study the regulatory effect of EG on inflammasome activation in vitro...
February 12, 2018: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/29417481/effect-of-planting-density-and-harvest-protocol-on-field-scale-phytoremediation-efficiency-by-eucalyptus-globulus
#3
Jie Luo, Mei He, Shihua Qi, Jian Wu, Xiaowen Sophie Gu
The phytoremediation efficiency of multi-metal-polluted sites in an electronic waste recycling town by Eucalyptus globulus was evaluated through a series of 2-year field experiments. Different initial planting densities (2500, 5000, and 10,000 plants per ha), coppice rotations, and harvesting position (5 or 30 cm above the ground) protocols were designed to improve the remediation potential of the species. There were unnoticeable variations in metal concentrations and distribution characteristics in plant tissues in a low and medium planting-density field during the experimental period...
February 7, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29415572/three-dimensional-typological-studies-using-scanning-electron-microscopy-for-characterization-of-termitomyces-pellets-obtained-from-submerged-growth-conditions
#4
R A de Souza, N M Kamat
There are gaps in existing understanding of fungal pellet growth dynamics. We used scanning electron microscopy (SEM) for morphological characterization of the biomass organization of Termitomyces pellets for seven species: T. microcarpus (TMI1), T. albuminosus (TAL1, TAL2), T. striatus (TSTR), T. aurantiacus (TAUR), T. heimii (THE1, THE2), T. globulus (TGLO) and T. clypeatus (TCL1, TCL2, TCL3, TCL4, TCL5). We assessed the utility of SEM for morphological and structural characterization of Termitomyces spp...
February 8, 2018: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/29405759/chemical-composition-antioxidant-and-antibacterial-activity-of-bunium-persicum-eucalyptus-globulus-and-rose-water-on-multidrug-resistant-listeria-species
#5
Farhad Sharafati Chaleshtori, Mohamad Saholi, Reza Sharafati Chaleshtori
This research was aimed at investigating the antioxidant and antibacterial activity of Bunium persicum, Eucalyptus globulus, and rose water on multidrug-resistant Listeria species. The antibiotic resistance of Listeria spp obtained from seafood samples were determined by the Kirby-Bauer method. The antioxidant and antibacterial activity of the essential oils and extracts were evaluated using ferric reducing antioxidant power and microdilution methods, respectively. A total 2 samples (1.88%) were positive for Listeria spp...
January 2018: J Evid Based Integr Med
https://www.readbyqxmd.com/read/29345423/deep-eutectic-solvent-aqueous-solutions-as-efficient-media-for-the-solubilization-of-hardwood-xylans
#6
Eduarda S Morais, Patrícia V Mendonça, Jorge F J Coelho, Mara G Freire, Carmen S R Freire, João A P Coutinho, Armando J D Silvestre
This work contributes to the development of integrated lignocellulosic-based biorefineries by the pioneering exploitation of hardwood xylans by solubilization and extraction in deep eutectic solvents (DES). DES formed by choline chloride and urea or acetic acid were initially evaluated as solvents for commercial xylan as a model compound. The effects of temperature, molar ratio, and concentration of the DES aqueous solutions were evaluated and optimized by using a response surface methodology. The results obtained demonstrated the potential of these solvents, with 328...
January 18, 2018: ChemSusChem
https://www.readbyqxmd.com/read/29277050/combining-autohydrolysis-and-ionic-liquid-microwave-treatment-to-enhance-enzymatic-hydrolysis-of-eucalyptus-globulus-wood
#7
Victoria Rigual, Tamara M Santos, Juan Carlos Domínguez, M Virginia Alonso, Mercedes Oliet, Francisco Rodriguez
The combination of autohydrolysis and ionic liquid microwave treatments of eucalyptus wood have been studied to facilitate sugar production in a subsequent enzymatic hydrolysis step. Three autohydrolysis conditions (150 °C, 175 °C and 200 °C) in combination with two ionic liquid temperatures (80 °C and 120 °C) were compared in terms of chemical composition, enzymatic digestibility and sugar production. Morphology was measured (using SEM) and the biomass surface was visualized with confocal fluorescence microscopy...
December 14, 2017: Bioresource Technology
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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...
November 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28917870/ultra-high-pressure-modified-cellulosic-fibres-with-antimicrobial-properties
#17
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
#18
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
#19
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
#20
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
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