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https://www.readbyqxmd.com/read/28214697/characterization-of-white-poplar-and-eucalyptus-after-ionic-liquid-pretreatment-as-a-function-of-biomass-loading-using-x-ray-diffraction-and-small-angle-neutron-scattering
#1
Xueming Yuan, Yonghao Duan, Lilin He, Seema Singh, Blake Simmons, Gang Cheng
A systematic study was performed to understand interactions among biomass loading during ionic liquid (IL) pretreatment, biomass type and biomass structures. White poplar and eucalyptus samples were pretreated using 1-ethyl-3-methylimidazolium acetate (EmimOAc) at 110°C for 3h at biomass loadings of 5, 10, 15, 20 and 25wt%. All of the samples were chemically characterized and tested for enzymatic hydrolysis. Physical structures including biomass crystallinity and porosity were measured by X-ray diffraction (XRD) and small angle neutron scattering (SANS), respectively...
February 8, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28212396/plants-promote-mating-and-dispersal-of-the-human-pathogenic-fungus-cryptococcus
#2
Deborah J Springer, Rajinikanth Mohan, Joseph Heitman
Infections due to Cryptococcus are a leading cause of fungal infections worldwide and are acquired as a result of environmental exposure to desiccated yeast or spores. The ability of Cryptococcus to grow, mate, and produce infectious propagules in association with plants is important for the maintenance of the genetic diversity and virulence factors important for infection of animals and humans. In the Western United States and Canada, Cryptococcus has been associated with conifers and tree species other than Eucalyptus; however, to date Cryptococcus has only been studied on live Arabidopsis thaliana, Eucalyptus sp...
2017: PloS One
https://www.readbyqxmd.com/read/28212110/the-impact-of-chewing-gum-on-halitosis-parameters-a-systematic-review
#3
Francisco Wilker Mustafa Gomes Muniz, Stephanie Anagnostopoulos Friedrich, Carina Folgearini Silveira, Cassiano Kuchenbecker Rösing
This study aimed to analyze the impact of chewing gum on halitosis parameters. Three databases were searched with the following focused question: 'Can chewing gum additionally reduce halitosis parameters, such as organoleptic scores and volatile sulfur compounds (VSC), when compared to a control treatment'? Controlled clinical trials presenting at least two halitosis measurements (organoleptic scores and/or VSC) were included. Ten studies were included, and different active ingredients were used. One study was performed using a chewing gum without any active ingredient...
February 17, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28209019/efficacy-of-specific-plant-products-on-microorganisms-causing-dental-caries
#4
M Rajini Kanth, A Ravi Prakash, G Sreenath, Vikram Simha Reddy, S Huldah
INTRODUCTION: Dental caries and periodontal diseases are the most common oral diseases seen globally, both in developed and developing countries. Oral microorganisms that is gram positive and gram negative bacteria are known to be involved in causation of these diseases. Nowadays commercially available dentrifices and mouth rinses are known to contain ingredients that can alter the oral microbial flora and have undesirable side effects such as vomiting, diarrhoea, disarrangement of oral, intestinal flora and tooth staining...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28198423/discovery-of-genes-coding-for-carbohydrate-active-enzyme-by-metagenomic-analysis-of-lignocellulosic-biomasses
#5
Salvatore Montella, Valeria Ventorino, Vincent Lombard, Bernard Henrissat, Olimpia Pepe, Vincenza Faraco
In this study, a high-throughput sequencing approach was applied to discover novel biocatalysts for lignocellulose hydrolysis from three dedicated energy crops, Arundo donax, Eucalyptus camaldulensis and Populus nigra, after natural biodegradation. The microbiomes of the three lignocellulosic biomasses were dominated by bacterial species (approximately 90%) with the highest representation by the Streptomyces genus both in the total microbial community composition and in the microbial diversity related to GH families of predicted ORFs...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28195328/visualization-of-xylem-embolism-by-x-ray-microtomography-a-direct-test-against-hydraulic-measurements
#6
Markus Nolf, Rosana Lopez, Jennifer M R Peters, Richard J Flavel, Leah S Koloadin, Iain M Young, Brendan Choat
X-ray microtomography (microCT) is becoming a valuable noninvasive tool for advancing our understanding of plant-water relations. Laboratory-based microCT systems are becoming more affordable and provide better access than synchrotron facilities. However, some systems come at the cost of comparably lower signal quality and spatial resolution than synchrotron facilities. In this study, we evaluated laboratory-based X-ray microCT imaging as a tool to nondestructively analyse hydraulic vulnerability to drought-induced embolism in a woody plant species...
February 14, 2017: New Phytologist
https://www.readbyqxmd.com/read/28190801/acaricidal-potentials-of-the-terpene-rich-essential-oils-of-two-iranian-eucalyptus-species-against-tetranychus-urticae-koch
#7
Asgar Ebadollahi, Jalal Jalali Sendi, Mostafa Maroufpoor, Mehdi Rahimi-Nasrabadi
There is a rapid growth in the screening of plant materials for finding new bio-pesticides. In the present study, the essential oils of E. oleosa and E. torquata leaves were extracted using a Clevenger apparatus and their chemical profiles were investigated by Gas Chromatography-Mass Spectrometry (GC-MS). Among identified compounds, the terpenes had highest amount for both essential oils; 93.59% for E. oleosa and 97.69% for E. torquata. 1,8-Cineole (31.96%), α-pinene (15.25%) and trans-anethole (7.32%) in the essential oil of E...
February 10, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28190676/insights-into-temperature-modulation-of-the-eucalyptus-globulus-and-eucalyptus-grandis-antioxidant-and-lignification-subproteomes
#8
Marília Gabriela de Santana Costa, Paulo Mazzafera, Tiago Santana Balbuena
Eucalyptus grandis and Eucalyptus globulus are among the most widely cultivated trees, differing in lignin composition and plantation areas, as E. grandis is mostly cultivated in tropical regions while E. globulus is preferred in temperate areas. As temperature is a key modulator in plant metabolism, a large-scale proteome analysis was carried out to investigate changes in the antioxidant system and the lignification metabolism in plantlets grown at different temperatures. Our strategy allowed the identification of 3111 stem proteins...
February 9, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28190473/eucalrobusone-c-suppresses-cell-proliferation-and-induces-ros-dependent-mitochondrial-apoptosis-via-the-p38-mapk-pathway-in-hepatocellular-carcinoma-cells
#9
Kai-Li Jian, Chao Zhang, Zhi-Chun Shang, Lei Yang, Ling-Yi Kong
BACKGROUND: Eucalyptus extracts have anti-cancer activity against various cancer cells. Formyl-phloroglucinol meroterpenoids (FPMs), which are typical secondary metabolites of the genera Eucalyptus, have many important pharmacological activities. PURPOSE: Eucalrobusone C (EC), a new bioactive phytochemical, was first isolated from the leaves of Eucalyptus robusta in our laboratory. EC is a FPM, and our previous research revealed that EC showed strongest cytotoxicity in three cancer models than other compounds isolated from the leaves of E...
February 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28185948/unpacking-boxes-integration-of-molecular-morphological-and-ecological-approaches-reveals-extensive-patterns-of-reticulate-evolution-in-the-box-eucalypts
#10
Flores-Rentería Lluvia, Rymer Paul, Riegler Markus
Reticulate evolution by hybridization is considered a common process shaping the evolution of many plant species, however, reticulation could also be due to incomplete lineage sorting in biodiverse systems. For our study we selected a group of closely related plant taxa with contrasting yet partially overlapping geographic distributions and different population sizes, to distinguish between reticulated patterns due to hybridization and incomplete lineage sorting. We predicted that sympatric or proximal populations of different species are more likely to have gene flow than geographically distant populations of the same widespread species...
February 6, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28185852/pyrolysis-for-exploitation-of-biomasses-selected-for-soil-phytoremediation-characterization-of-gaseous-and-solid-products
#11
Paola Giudicianni, Stefania Pindozzi, Corinna Maria Grottola, Fernando Stanzione, Salvatore Faugno, Massimo Fagnano, Nunzio Fiorentino, Raffaele Ragucci
Biomasses to be used in the phytoremediation process are generally selected to match agronomic parameters and heavy metals uptake ability. A proper selection can be made greatly effective if knowledge of the properties of the residual char from pyrolysis is available to identify possible valorization routes. In this study a comparative analysis of the yields and characteristics of char obtained from slow pyrolysis of five uncontaminated biomasses (Populus nigra, Salix alba, Fraxinus oxyphylla, Eucalyptus occidentalis and Arundo donax) was carried out under steam atmosphere to better develop char porosity...
February 7, 2017: Waste Management
https://www.readbyqxmd.com/read/28173560/application-of-near-infrared-spectroscopy-for-estimation-of-non-structural-carbohydrates-in-foliar-samples-of-eucalyptus-globulus-labilladi%C3%A3-re
#12
A G Quentin, T Rodemann, M-F Doutreleau, M Moreau, N W Davies, Peter Millard
No abstract text is available yet for this article.
January 31, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28172507/p395-etrolizumab-demonstrated-no-difference-among-doses-in-symptomatic-and-endoscopic-based-evaluation-of-remission-in-anti-tnf-%C3%AE-na%C3%A3-ve-patients-in-a-post-hoc-analysis-of-the-phase-2-ulcerative-colitis-trial-eucalyptus
#13
W J Sandborn, S Schreiber, M T Tang, A R Tatro, Y S Oh, R Maciuca
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28165411/isolation-and-characterization-of-gramineae-and-fabaceae-soda-lignins
#14
Juan Domínguez-Robles, Rafael Sánchez, Eduardo Espinosa, Davide Savy, Pierluigi Mazzei, Alessandro Piccolo, Alejandro Rodríguez
Some agricultural residues such as wheat or barley straw, as well as certain fast-growing plants like Leucaena leucocephala and Chamaecytisus proliferus, could be used as raw materials for the paper industry as an alternative to traditional plants (eucalyptus, pine, etc.). In the present study, four types of lignin obtained from the spent liquors produced by the pulping processes using the abovementioned feedstocks were isolated and characterized. Lignin samples were acquired through an acid precipitation from these spent liquors...
February 4, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28149496/pseudomoniasis-phytotherapy-a-review-on-most-important-iranian-medicinal-plants-effective-on-pseudomonas-aeruginosa
#15
REVIEW
Mahmoud Bahmani, Mahmoud Rafieian-Kopaei, Hassan Hassanzadazar, Morovat Taherikalani
BACKGROUND AND OBJECTIVES: Pseudomonas aeruginosa is a Gram-negative, aerobic bacterium found in water and soil. It is a normal flora in skin and gastrointestinal tract of human beings. P. aeruginosa as an opportunistic pathogen involved in nosocomial infections having multiple pathogenic factors and shows high rate of resistance to different antibiotics. The aim of this study was to identify the most important native medicinal plants of Iran effective on P. aeruginosa. MATERIALS AND METHODS: All required information was obtained by searching keywords such as P...
October 2016: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/28127308/antifungal-activity-of-essential-oil-of-eucalyptus-camaldulensis-dehnh-against-selected-fusarium-spp
#16
Martin Muthee Gakuubi, Angeline W Maina, John M Wagacha
The objective of this study was to evaluate the antifungal activity of essential oil (EO) of Eucalyptus camaldulensis Dehnh. against five Fusarium spp. commonly associated with maize. The essential oil had been extracted by steam distillation in a modified Clevenger-type apparatus from leaves of E. camaldulensis and their chemical composition characterized by gas chromatography mass spectrometry. Poisoned food technique was used to determine the percentage inhibition of mycelial growth, minimum inhibitory concentration, and minimum fungicidal concentration of the EO on the test pathogens...
2017: International Journal of Microbiology
https://www.readbyqxmd.com/read/28117908/land-use-as-a-driver-of-soil-fertility-and-biodiversity-across-an-agricultural-landscape-in-the-central-peruvian-andes
#17
Anne W de Valença, Steven J Vanek, Katherin Meza, Raul Ccanto, Edgar Olivera, Maria Scurrah, Egbert A Lantinga, Steven J Fonte
Land use change and intensification in agricultural landscapes of the Andean highlands have resulted in widespread soil degradation and a loss in soil-based ecosystem services and biodiversity. This trend threatens the sustainability of farming communities in the Andes, with important implications for food security and biodiversity conservation throughout the region. Based on these challenges we sought to understand the impact of current and future land use practices on soil fertility and biodiversity, so as to inform landscape planning and management decisions for sustainable agroecosystem management...
January 24, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28117828/green-and-low-cost-production-of-thermally-stable-and-carboxylated-cellulose-nanocrystals-and-nanofibrils-using-highly-recyclable-dicarboxylic-acids
#18
Huiyang Bian, Liheng Chen, Ruibin Wang, Junyong Zhu
Here we demonstrate potentially low cost and green productions of high thermally stable and carboxylated cellulose nanocrystals (CNCs) and nanofibrils (CNF) from bleached eucalyptus pulp (BEP) and unbleached mixed hardwood kraft pulp (UMHP) fibers using highly recyclable dicarboxylic solid acids. Typical operating conditions were acid concentrations of 50 - 70 wt% at 100 °C for 60 min and 120 °C (no boiling at atmospheric pressure) for 120 min, for BEP and UMHP, respectively. The resultant CNCs have a higher thermal degradation temperature than their corresponding feed fibers and carboxylic acid group content from 0...
January 9, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28113065/allelopathic-effects-of-volatile-organic-compounds-from-eucalyptus-grandis-rhizosphere-soil-on-eisenia-fetida-assessed-using-avoidance-bioassays-enzyme-activity-and-comet-assays
#19
Tang Zhiqun, Zhang Jian, Yu Junli, Wang Chunzi, Zhang Danju
Allelopathy has been identified as an underlying mechanism of detrimental environmental impacts within commercial plantations. Eucalyptus spp. are known to generate huge amounts of volatile organic compounds (VOCs) that can function as phytotoxins and thus inhibit other plants. In the present study, biochemical markers, including activities of acetylcholinesterase (AChE) and oxidative stress enzymes, such as superoxide dismutase (SOD) and glutathione S-transferase (GST), were assayed to assess changes in Eisenia fetida at the physiological level induced by different doses of VOCs as part of an acute toxicity test over 7 and 14-day exposures...
January 11, 2017: Chemosphere
https://www.readbyqxmd.com/read/28108505/comparative-transcriptomics-of-buzura-suppressaria-lepidoptera-geometridae-assembled-de-novo-yield-insights-into-response-after-buzura-suppressaria-nuclear-polyhedrosis-virus-infection
#20
Ji Luo, Yating Zhong, Jiyu Zhu, Guoying Zhou, Huayan Huang, Yaojun Wu
Buzura suppressaria Guenee (Lepidoptera: Geometridae) is a defoliator that seriously harms eucalyptus trees in South China. Buzura suppressaria nuclear polyhedrosis virus (BsNPV) is a baculovirus that infects B. suppressaria with high specificity and efficiency. Transcriptomes of B. suppressaria were sequenced before and after BsNPV infection using an Illumina-based platform to probe for differentially expressed genes (DEGs) of B. suppressaria after viral infection. On average, ∼57.4 million high-quality clean reads were generated and assembled de novo into 69,761 unigenes...
January 20, 2017: Journal of Economic Entomology
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