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Due to its nutritive and medicinal properties, berries of some Sorbus species are used for the preparation of jams and jelly as well as in traditional medicine. On the other hand, their chemical composition is not much studied especially of those grown in Balkan Peninsula.
We have analyzed individual phenolics, tocopherols, carotenoids and chlorophylls using HPLC in berries from Sorbus aucuparia and Sorbus aria collected in different localities in Serbia and Montenegro together with the amoun We have analyzed individual phenolics, tocopherols, carotenoids and chlorophylls using HPLC in berries from Sorbus aucuparia and Sorbus aria collected in different localities in Serbia and Montenegro together with the amounts of total phenolics and proanthocyanidins as well as their radical scavenging activity against DPPH radical.
Berries of S. Correlation between total phenolics and DPPH radical scavenging activity was noticed. Our study represents comprehensive report on chemical composition of S. Phytochemical and antioxidant profiles of leaves from different Sorbus L. Leaves of Sorbus L. Phenolic compounds determine the main pharmacological effects of Sorbus L. In this study, phytochemical and antioxidant profiles of Sorbus anglica, Sorbus aria , Sorbus arranensis, Sorbus aucuparia, Sorbus austriaca, Sorbus caucasica, Sorbus commixta, Sorbus discolor, Sorbus gracilis, Sorbus hostii, Sorbus semi-incisa and Sorbus tianschanica were determined.
Twenty four constituents were identified in Sorbus L. Post-column FRAP assay identified compounds with reducing activity and revealed significantly greatest total antioxidant activity of Characteristic fingerprints of phytochemical and antioxidant profiles could be applied for the quality evaluation of various raw materials of Sorbus L.
Directory of Open Access Journals Sweden. Full Text Available Sorbus commixta Hedl. Rosaceae has been traditionally used in oriental countries for the treatment of asthma and other bronchial disorders.
In this study, a chalcone glycoside was isolated from the ethyl acetate extract of the fruits of this plant. The compound was identified as neosakuranin based on the spectroscopic analysis and comparion with literature data. This is the first report of isolation of neosakuranin from Sorbus commixta. Spatial structure of a natural mixed topodeme of subalpine Sorbus taxa. Full Text Available Spatial distribution and genetic variation of a population of Sorbus chamaemespilus L.
Crantz and putative hybrids between S. The analysis of spatial patterns using Ripley's K-function revealed a significant clustering of the adults of both S. Bivariate point-pattern analysis considering cardinal direction showed that juvenile individuals of S. The analysis of genetic variation in a subset of adult shrubs using 4 nuclear microsatellite loci revealed that unlike expected, there was no variation in S.
Implications for the reproduction system and conservation of the investigated taxa are discussed. Isolation and recrystallization of epicuticular waxes from Sorbus and Cotoneaster leaves. The leaves of Sorbus domestica L. Competitive success of southern populations of Betula pendula and Sorbus aucuparia under simulated southern climate experiment in the subarctic. Global warming has been commonly accepted to facilitate species' range shifts across latitudes.
Cross-latitudinal transplantations support this; many tree species can well adapt to new geographical areas. However, these studies fail to capture species' adaptations to new light environment because the experiments were not designed to explicitly separate species' responses to light and temperature. Shoot elongation and autumn coloration were studied in seedlings of two deciduous trees Betula pendula and Sorbus aucuparia , which were expected to respond differently to day length.
Sorbus as a member of Rosaceae family was assumed to be indifferent to photoperiod, while Betula responds strongly to day length. We hypothesized that 1 southern and northern populations of both species perform differently; 2 southern populations perform better in both sites; 3 autumn phenology of southern populations may delay in the northern site; 4 and Sorbus aucuparia is less dependent on light environment. According to the hypotheses, shoot elongation of northern population was inherently low in both species.
An evolutionary consequence of this may be a competitive success of southern populations under warming climate. Southern population of B. Sorbus aucuparia was less responsive to light environment. The results suggest that light provides selection pressure in range shifts, but the response is species dependent. S-allele diversity in Sorbus aucuparia and Crataegus monogyna Rosaceae: Maloideae. RT-PCR was used to obtain the first estimates from natural populations of allelic diversity at the RNase-based gametophytic self-incompatibility locus in the Rosaceae.
A total of 20 alleles were retrieved from 20 Sorbus aucuparia individuals, whereas 17 alleles were found in 13 Crataegus monogyna samples. Estimates of population-level allele numbers fall within the range observed in the Solanaceae, the only other family with RNase-based incompatibility for which estimates are available.
The nucleotide diversity of S-allele sequences was found to be much lower in the two Rosaceae species as compared with the Solanaceae. This was not due to a lower sequence divergence among most closely related alleles. Rather, it is the depth of the entire genealogy that differs markedly in the two families, with Rosaceae S-alleles exhibiting more recent apparent coalescence. We also investigated patterns of selection at the molecular level by comparing nucleotide diversity at synonymous and nonsynonymous sites.
Stabilizing selection was inferred for the 5' region of the molecule, while evidence of diversifying selection was present elsewhere. Characterisation of Sorbus domestica L. Full Text Available The aim of this work is to assess the nutritional value of service tree Sorbus domestica L.
Our results revealed that all of the tested service tree samples were rich in potassium. Bark was the best source of calcium and zinc, while seeds were the best source of magnesium. Compared to the bark and seeds, fruit exocarp and mesocarp contained significantly lower amounts of these three elements. Immature exocarp and bark contained the highest amounts of total phenolics and showed the highest antioxidant activity. Maturation significantly decreased the amount of total phenolics in fruits, as well as the antioxidant activity of total phenolics and total tannins from exocarp, but not from mesocarp.
Exocarp was the richest in total flavonoids. Based on the obtained data, we have concluded that the under-utilised species S. Tree species composition affects the abundance of rowan Sorbus aucuparia L. Recent studies have shown a considerable increase in the abundance of rowan Sorbus aucuparia saplings in urban forests in Finland, yet the reasons for this increase are not well understood.
Here we investigated whether canopy cover or tree species composition, i. Altogether 24 urban forest patches were investigated. We sampled the number of rowan and other saplings, and calculated the basal areas of trees. We showed that rowan abundance was affected by tree species composition. However, a decrease in the abundance of birch Betula pendula and an increase in the broad-leaved tree group Acer platanoides, Alnus glutinosa, Alnus incana, Amelanchier spicata, Prunus padus, Quercus robur, Rhamnus frangula and Salix caprea coincided with a decreasing number of rowans.
Furthermore, rowan saplings were scarce in the vicinity of mature rowan trees. Although it seems that tree species composition has an effect on rowan, the relationship between rowan saplings and mature trees is complex, and therefore we conclude that regulating tree species composition is not an easy way to keep rowan thickets under control in urban forests in Finland. All rights reserved. Rapid production of trees. Seedlings of Acer platanoides approximately 2 m tall were produced in southern Norway in one year by seed stratification indoors.
Similar results were obtained with Fraxinus excelsior, Quercus robus and Sorbus spp. Trails were also carried out with Betula verrucose B. In all trials growth was increased when plants were raised in a plastic house, and depended on the time that Spring growth was started or whether supplementary light was given and also depended on the seed strain.
For northern and high altitude strains it was important to maintain critical day length. Full Text Available The water deficit is considered to be significant cause of photosynthesis defects. Measuring of chlorophyll fluorescence is one of the methods revealing defects in the photosynthetic apparatus.
The experiment was established with two woody plant Pyrus pyraster L. The measurement of the modulated fluorescence of chlorophyll a was done by FMS1 fluorometer during three-week period between June and September and According to the obtained results, Pyrus pyraster has probably higher potential for adaptation to water deficiency.
One of them is Sorbus domestica, L. The work was aimed for finding a total genomic DNA isolating methods from fresh plant material and confirmation of the optimized method by the detection of 18S rRNA gene using real-time PCR. Higher purity and yield of DNA isolation kit showed Invisorb kit.
Taxonomic revision of Sorbus subgenus Aria occurring in the Czech Republic. Arum-type of arbuscular mycorrhizae, dark septate endophytes and Olpidium spp. Full Text Available The aim of this study was to determine the mycorrhizal status of nursery seedlings of the wild service tree Sorbus torminalis, which belongs to the Rosaceae family.
Its mycorrhizal associations are still fragmentarily known, and data from the few existing studies indicate that it forms ectomycorrhizal symbiosis ECM. We analyzed the degree of mycorrhizal colonization of thirty 2-year-old container-grown S.
The roots were dominated by arbuscular mycorrhizae AM, with the morphology of the Arum-type containing arbuscules, vesicles and hyphae; however, no ECM structures were found. The degree of root colonization of the analyzed seedlings by AM fungi was In addition to AM, structures of dark septate endophytes 0. In agreement with previous studies, we confirmed arbuscular mycorrhizae for S.
Moreover, this is the first report that roots of this Sorbus species show the Arum-type morphology of AM and are associated with Olpidium species. Phytogeographic and genetic variation in Sorbus , a traditional antidiabetic medicine—adaptation in action in both a plant and a discipline. Its potential as an antidiabetic medicine is thought to vary across its geographical range, yet little is known about the factors that affect its antioxidant capacity.
Here, we examined metabolite gene expression in relation to antioxidant activity, linking phytochemistry and medicinal potential. Samples of leaf and bark from S. Two genes known to produce antidiabetic substances, flavonol synthase and squalene synthase, were analyzed using quantitative real time PCR. Gene expression was significantly higher for flavonol synthase compared to squalene synthase and increased in the most Northern latitude.
ESCALA DE ALDRETE E KROULIK PDF
In Peru, the industry's development has made economic improvements but at the same time, it has had a major impact on the health of the workers; for that reason, it was necessary to generate control mechanisms. So, in it was created the Departmento de Higiene Industrial, which in was changed to Instituto de Salud Ocupacional, but it was deactivated in Positivo y con Sindrome de Inmunodeficiencia Adquirida S. The goal of the guide is to maximize participation of infected children in the Head Start program. The guide presents activities in three main stages:….
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International Handbook of Universities pp Cite as. The higher education system has three basic pillars: free public education, laicism in both public and private institutions, and the autonomy of public universities. It is made up of over 6, institutions approx. Public higher education institutions are of three types: federal, state, and autonomous. Universities must offer a minimum of 5 academic programmes at Bachelor, Master and Ph.