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https://www.readbyqxmd.com/read/28687978/two-new-leptographium-spp-reveal-an-emerging-complex-of-hardwood-infecting-species-in-the-ophiostomatales
#1
Robert Jankowiak, Beata Strzałka, Piotr Bilański, Riikka Linnakoski, Truls Aas, Halvor Solheim, Małgorzata Groszek, Z Wilhelm de Beer
Species of Leptographium are generally characterized by mononematous conidiophores and are commonly associated with bark beetles and weevils. These species are responsible for sapstain and in some cases serious diseases on a range of primarily coniferous trees. In comparison with coniferous trees, the occurrence of Leptographium species on hardwood trees has been poorly studied in Europe. During a survey of ophiostomatoid fungi on various tree species in Norway and Poland, three unusual species, which fit the broader morphological description of Leptographium spp...
July 7, 2017: Antonie Van Leeuwenhoek
https://www.readbyqxmd.com/read/28649153/corynespora-exosporium-and-helminthosporium-revisited-new-species-and-generic-reclassification
#2
H Voglmayr, W M Jaklitsch
Molecular phylogenetic analyses of a multigene matrix of partial nuSSU-ITS-LSU rDNA, rpb2 and tef1 sequences were performed to investigate the phylogenetic relationships of Corynespora, Exosporium and Helminthosporium species. Based on phylogenetic analyses and morphology, the genus Exosporium is synonymised with Helminthosporium, and the genus Corynespora is revealed as polyphyletic. Corynespora smithii is confirmed to be closely related to the generic type C. cassiicola and its morphology is described and illustrated...
June 2017: Studies in Mycology
https://www.readbyqxmd.com/read/28639115/chemical-composition-of-selected-commercial-herbal-remedies-in-relation-to-geographical-origin-and-inter-species-diversity
#3
Pawel Konieczynski, Agnieszka Viapiana, Roman Lysiuk, Marek Wesolowski
Infusions prepared from medicinal herbs that are rich in flavonoids are very popular herbal remedies in societies of Eastern Europe. Therefore, the content of essential elements together with total flavonoids was analyzed in 65 commercially available samples of herbal drugs originating from Ukraine, Romania, and Belarus. The results showed that metallic elements (in mg kg(-1) d.w.) have occurred in the following order: Fe > Mn > Zn > Cu, both for total and water-extractable species. Total flavonoids were determined in the range from 10...
June 21, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28619486/extended-depth-of-focus-contact-lenses-vs-two-commercial-multifocals-part-2-visual-performance-after-1-week-of-lens-wear
#4
Ravi C Bakaraju, Daniel Tilia, Jennifer Sha, Jennie Diec, Jiyoon Chung, Danny Kho, Shona Delaney, Anna Munro, Varghese Thomas
PURPOSE: To compare the visual performance of prototype contact lenses designed via deliberate manipulation of higher-order spherical aberrations to extend-depth-of-focus with two commercial multifocals, after 1 week of lens wear. METHODS: In a prospective, participant-masked, cross-over, randomized, 1-week dispensing clinical-trial, 43 presbyopes [age: 42-63 years] each wore AIROPTIX Aqua multifocal (AOMF), ACUVUE OASYS for presbyopia (AOP) and extended-depth-of-focus prototypes (EDOF) appropriate to their add requirements...
June 12, 2017: Journal of Optometry
https://www.readbyqxmd.com/read/28532158/particulate-matter-heavy-metals-and-polycyclic-aromatic-hydrocarbons-accumulation-on-the-leaves-of-tilia-cordata-mill-in-five-polish-cities-with-different-level-of-air-pollution
#5
Robert Popek, Adrian Łukowski, Christopher Bates, Jacek Oleksyn
Urbanized areas are struggling with the problem of air pollution and when the number of people living in cities increasing, the situation is likely to deteriorate. One of the most harmful pollutants is particulate matter (PM). Increased levels of PM in the atmosphere are likely to have a negative impact on human health. Phytoremediation technology could be a solution. It involves plants acting as bio-filters by accumulating particles on, and in the leaves, which removes the particles from the atmosphere.This study looks at the accumulation of PM including heavy metals (HMs) and polycyclic aromatic hydrocarbons (PAHs), on the foliage of small-leaved lime (Tilia cordata Mill...
May 22, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28480855/plant-aeroallergens-in-two-major-cities-of-georgia-tbilisi-and-kutaisi
#6
T Abramidze, M Gotua, N Chikhelidze, T Cheishvili, A Gamkrelidze
Pollen allergy is caused by a hypersensitivity reaction mainly of the respiratory tract and eye conjunctivae to pollen grains. The number of people allergic to plant aeroallergens has substantially increased in big cities and industrial areas. The monitoring of aerobiological parameters is of paramount importance for the characterization of allergenic risks. The aims of presented study were as follows: to profile the plant aeroallergens in two major cities of Georgia, to compare the character of pollination curves, to determine the dates of beginning of pollen seasons and their duration in particular cities...
March 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28432768/the-fate-of-recently-fixed-carbon-after-drought-release-towards-unravelling-c-storage-regulation-in-tilia-platyphyllos-and-pinus-sylvestris
#7
Lucía Galiano Pérez, Galina Timofeeva, Matthias Saurer, Rolf Siegwolf, Jordi Martínez-Vilalta, Robert Hommel, Arthur Gessler
Carbon reserves are important for maintaining tree function during and after stress. Increasing tree mortality driven by drought globally has renewed the interest in how plants regulate allocation of recently fixed C to reserve formation. Three year-old seedlings of two species (Tilia platyphyllos, Pinus sylvestris) were exposed to two intensities of experimental drought during ~ 10 weeks and (13) C pulse labelling was subsequently applied with rewetting. Tracking the (13) C-label across different organs and C compounds (soluble sugars, starch, myo-inositol, lipids and cellulose), together with the monitoring of gas exchange and C mass balances over time, allowed for the identification of variations in C allocation priorities and tree C balances that are associated to drought effects and subsequent drought release...
April 22, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28417943/lc-esi-ms-ms-identification-of-biologically-active-phenolic-compounds-in-mistletoe-berry-extracts-from-different-host-trees
#8
Wioleta Pietrzak, Renata Nowak, Urszula Gawlik-Dziki, Marta Kinga Lemieszek, Wojciech Rzeski
A new, rapid, sensitive and selective liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) method was developed to determine the content of flavonoid aglycones and phenolic acids in mistletoe berries (Viscum album L.) harvested from six different Polish host trees. Additionally, the total phenolic content (TPC) and total flavonoid content (TFC) as well as an antioxidant and antiproliferative activity were evaluated for the first time. The plant material was selectively extracted using ultrasound assisted maceration with methanol/water (8:2) solution...
April 12, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28358006/specialist-nectar-yeasts-decline-with-urbanization-in-berlin
#9
Jeannine Wehner, Moritz Mittelbach, Matthias C Rillig, Erik Verbruggen
Nectar yeasts are common inhabitants of insect-pollinated flowers but factors determining their distribution are not well understood. We studied the influence of host identity, environmental factors related to pollution/urbanization, and the distance to a target beehive on local distribution of nectar yeasts within Robinia pseudoacacia L. and Tilia tomentosa Moench in Berlin, Germany. Nectar samples of six individuals per species were collected at seven sites in a 2 km radius from each target beehive and plated on YM-Agar to visualise the different morphotypes, which were then identified by sequencing a section of the 26S rDNA gene...
March 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28344485/biochemical-and-molecular-modulation-of-ccl4-induced-peripheral-and-central-damage-by-tilia-americana-var-mexicanaextracts
#10
Elvia Coballase-Urrutia, Noemí Cárdenas-Rodríguez, María Carolina González-García, Eithan Núñez-Ramírez, Esaú Floriano-Sánchez, María Eva González-Trujano, Berenice Fernández-Rojas, José Pedraza-Chaverrí, Hortencia Montesinos-Correa, Liliana Rivera-Espinosa, Aristides Iii Sampieri, Liliana Carmona-Aparicio
Around the world, species from the genus Tilia are commonly used because of their peripheral and central medicinal effects; they are prepared as teas and used as tranquilizing, anticonvulsant, and analgesic agents. In this study, we provide evidence of the protective effects of organic and aqueous extracts (100 mg/kg, i.p.) obtained from the leaves of Tilia americana var. mexicana on CCl4-induced liver and brain damage in the rat. Protection was observed in the liver and brain (cerebellum, cortex and cerebral hemispheres) by measuring the activity of antioxidant enzymes and levels of malondialdehyde (MDA) using spectrophotometric methods...
March 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/28213548/effects-of-gelling-agent-and-extracellular-signaling-molecules-on-the-culturability-of-marine-bacteria
#11
Anita Mac Rygaard, Mariane Schmidt Thøgersen, Kristian Fog Nielsen, Lone Gram, Mikkel Bentzon-Tilia
Only 1% of marine bacteria are currently culturable using standard laboratory procedures, and this is a major obstacle for our understanding of the biology of marine microorganisms and for the discovery of novel microbial natural products. Therefore, the purpose of this study was to investigate if improved cultivation conditions, including the use of an alternative gelling agent and supplementation with signaling molecules, improve the culturability of bacteria from seawater. Replacing agar with gellan gum improved viable counts 3- to 40-fold, depending on medium composition and incubation conditions, with a maximum of 6...
May 1, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28187126/from-east-to-west-across-the-palearctic-phylogeography-of-the-invasive-lime-leaf-miner-phyllonorycter-issikii-lepidoptera-gracillariidae-and-discovery-of-a-putative-new-cryptic-species-in-east-asia
#12
Natalia Kirichenko, Paolo Triberti, Issei Ohshima, Julien Haran, Bong-Kyu Byun, Houhun Li, Sylvie Augustin, Alain Roques, Carlos Lopez-Vaamonde
Knowing the phylogeographic structure of invasive species is important for understanding the underlying processes of invasion. The micromoth Phyllonorycter issikii, whose larvae damage leaves of lime trees Tilia spp., was only known from East Asia. In the last three decades, it has been recorded in most of Europe, Western Russia and Siberia. We used the mitochondrial cytochrome c oxidase subunit I (COI) gene region to compare the genetic variability of P. issikii populations between these different regions...
2017: PloS One
https://www.readbyqxmd.com/read/28164200/contribution-of-the-phenolic-composition-to-the-antioxidant-anti-inflammatory-and-antitumor-potential-of-equisetum-giganteum-l-and-tilia-platyphyllos-scop
#13
Inés Jabeur, Natália Martins, Lillian Barros, Ricardo C Calhelha, Josiana Vaz, Lotfi Achour, Celestino Santos-Buelga, Isabel C F R Ferreira
Naturally-occurring phytochemicals have received pivotal attention in the last few years, due to the increasing evidence of biological activities. Thus, in the present study, the antioxidant, anti-inflammatory and antitumor potentials of hydroethanolic extracts rich in phenolic compounds obtained from Equisetum giganteum L. and Tilia platyphyllos Scop. were assessed and directly correlated with their content of phenolic compounds, by using HPLC-DAD-ESI/MS analysis. T. platyphyllos showed the higher bioactive potential, evaluated in terms of antioxidant (radical scavenging effects - 105 μg mL(-1), reducing power - 123 μg mL(-1), β-carotene bleaching inhibition - 167 μg mL(-1), and lipid peroxidation inhibition - 56 μg mL(-1)), anti-inflammatory (225 μg mL(-1) inhibited 50% of nitric oxide production) and antitumor (breast - 224 μg mL(-1); lung - 247 μg mL(-1); cervical - 195 μg mL(-1) and hepatocellular - 173 μg mL(-1) carcinoma cells) activity, without having cytotoxic effects (>400 μg mL(-1))...
March 22, 2017: Food & Function
https://www.readbyqxmd.com/read/28099285/comparison-of-silicone-hydrogel-and-hydrogel-daily-disposable-contact-lenses
#14
Jennie Diec, Daniel Tilia, Varghese Thomas
OBJECTIVE: To compare subjective, objective and safety performance of silicone hydrogel (SiHy) daily disposable (DD) with hydrogel (Hy) DD contact lenses. METHOD: Retrospective analysis on approximately 40 participants (Px) each in 5 trials. Lenses grouped into SiHy (delefilcon A, somofilcon A, narafilcon A) and Hy (omafilcon A, nelfilcon A). Participants attended follow-up visits at baseline, 2 weeks, 1 and 3 months. Subjective ratings (1-10 scale), adverse events (percentage of Px), physiological variables (0-4 scale), and wearing time were collected at each visit and compared between groups...
January 17, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/27987049/inter-and-intraannual-growth-patterns-of-urban-small-leaved-lime-tilia-cordata-mill-at-two-public-squares-with-contrasting-microclimatic-conditions
#15
Astrid Moser, Mohammad A Rahman, Hans Pretzsch, Stephan Pauleit, Thomas Rötzer
The effects of urban conditions on tree growth have been investigated in an increasing number of studies over the last decades, emphasizing the harsh environment of cities. Urban trees often grow in highly paved, compacted sites with consequently less soil moisture, higher soil temperatures, and greater vapor pressure deficits. However, there is still a knowledge gap regarding the impact of harsh paved environments on urban tree growth during drought years on the growth patterns of urban trees. The present study investigated the structure and growth of the common urban tree species small-leaved lime (Tilia cordata) at a highly paved public square (CPS) compared with a contrasting more open, greener square (OGS)...
December 16, 2016: International Journal of Biometeorology
https://www.readbyqxmd.com/read/27976253/the-uhplc-dad-ms3-analysis-of-pharmacopoeial-plant-material-tiliae-flos-comparison-of-the-chemical-composition-of-tilia-cordata-and-tilia-platyphyllos
#16
S Granica, A PruŘ, M Ziaja
No abstract text is available yet for this article.
December 2016: Planta Medica
https://www.readbyqxmd.com/read/27881798/acclimation-of-leaf-water-status-and-stem-hydraulics-to-drought-and-tree-neighbourhood-alternative-strategies-among-the-saplings-of-five-temperate-deciduous-tree-species
#17
Torben Lübbe, Bernhard Schuldt, Christoph Leuschner
Adjustment in leaf water status parameters and modification in xylem structure and functioning can be important elements of a tree's response to continued water limitation. In a growth trial with saplings of five co-occurring temperate broad-leaved tree species (genera Fraxinus, Acer, Carpinus, Tilia and Fagus) conducted in moist or dry soil, we compared the drought acclimation in several leaf water status and stem hydraulic parameters. Considering the extremes in the species responses, Fraxinus excelsior L...
April 1, 2017: Tree Physiology
https://www.readbyqxmd.com/read/27729909/coupling-bacterioplankton-populations-and-environment-to-community-function-in-coastal-temperate-waters
#18
Sachia J Traving, Mikkel Bentzon-Tilia, Helle Knudsen-Leerbeck, Mustafa Mantikci, Jørgen L S Hansen, Colin A Stedmon, Helle Sørensen, Stiig Markager, Lasse Riemann
Bacterioplankton play a key role in marine waters facilitating processes important for carbon cycling. However, the influence of specific bacterial populations and environmental conditions on bacterioplankton community performance remains unclear. The aim of the present study was to identify drivers of bacterioplankton community functions, taking into account the variability in community composition and environmental conditions over seasons, in two contrasting coastal systems. A Least Absolute Shrinkage and Selection Operator (LASSO) analysis of the biological and chemical data obtained from surface waters over a full year indicated that specific bacterial populations were linked to measured functions...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27699277/potential-tree-species-for-use-in-urban-areas-in-temperate-and-oceanic-climates
#19
Miklas Scholz, Vincent C Uzomah, Furat A M Al-Faraj
This study aims to assess the potential of trees for integration in urban development by evaluating the damage caused by trees in relation to various tree characteristics. Tree damage to permeable pavement systems and other urban structures such as impermeable pavements, kerbs, roads, retaining walls, footpaths, walls and buildings were assessed to identify the most suitable trees for the urban environment. One hundred square sites of 100 m × 100 m were randomly selected in Greater Manchester for this representative example case study to demonstrate the assessment methodology...
September 2016: Heliyon
https://www.readbyqxmd.com/read/27672187/the-acclimation-of-tilia-cordata-stomatal-opening-in-response-to-light-and-stomatal-anatomy-to-vegetational-shade-and-its-components
#20
Krõõt Aasamaa, Pedro José Aphalo
Stomatal anatomical traits and rapid responses to several components of visible light were measured in Tilia cordata Mill. seedlings grown in an open, fully sunlit field (C-set), or under different kinds of shade. The main questions were: (i) stomatal responses to which visible light spectrum regions are modified by growth-environment shade and (ii) which separate component of vegetational shade is most effective in eliciting the acclimation effects of the full vegetational shade. We found that stomatal opening in response to red or green light did not differ between the plants grown in the different environments...
February 1, 2017: Tree Physiology
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