scholarly journals The usable taxons in spontaneous flora of railway areas of the central-eastern part of Poland

2012 ◽  
Vol 59 (2) ◽  
pp. 95-108
Author(s):  
Małgorzata Wrzesień ◽  
Bożena Denisow

A wide range of ecological conditions on anthropogenic sites makes it easy for different usable species to infiltrate and spread there. The data were collected since 1998. The spontaneous flora of railway areas of the central-eastern part of Poland is composed of already recorded 950 vascular plants, of which 373 are recognized as usable, including 78 dye plants, 162 medicinal, 324 nectariferous or polleniferous taxons. The majority of taxons are distributed in disperse (128 species - 34%) or occur rarely (96 species - 26%). The common or frequent species constitute 40% of usable flora of the studied area. Medicinal and melliferous plants occur most frequently on slopes of trenches and railway embankments in nearly natural habitats. They mostly grow as single individuals or form loose and rarely dense patches. The analysis of their geographical status confirms the ultimate prevalence of apophytes over anthropophytes. Considering syntaxonomic structure, there are mainly species typical for phytoceonoses from <i>Molinio</i>-<i>Arrhenatheretea</i>, <i>Artemisietea vulgaris</i>, <i>Stellarietea mediae</i>, <i>Festuco</i>-<i>Brometea</i>, <i>Querco</i>-<i>Fagetea</i> classes.

2019 ◽  
Vol 8 (4) ◽  
pp. 89-93
Author(s):  
Venera Nuritdinovna Suleimanova ◽  
Tatyana Leonidovna Egoshina

In connection with the anthropogenic load on the natural habitats of many medicinal plant species, it is relevant to assess the ecological conditions of growth in order to study the relationships between species and plant communities. The paper presents the analysis of ecological features of some species of the Lily of the valley family (Convallariaceae) in the Kirov Region. To identify the ecological-phytocoenotic association of the studied species in forest communities of the Kirov Region, 45 coenotic populations (CP) of Convallaria majalis , 10 CP of Polygonatum odoratum and 20 CP of Majanthemum bifolium were studied. When analyzing the ecological conditions of the species habitats, H. Ellenberg ecological scales were used. Geobotanical descriptions of plant communities were carried out according to generally accepted methods. It has been established that the amplitudes of the ecological spaces of the studied species in the Kirov Region practically do not fit into most ranges of ecological niches calculated on the basis of H. Ellenberg scales. The species have a wide range of adaptability to the studied environmental factors. All studied species are distributed on medium-moist soils (5th level of H. Ellenberg scale). The authors have shown that the studied species are similar in environmental factors such as moisture and soil richness with nitrogen. Convallaria majalis and Polygonatum odoratum - photophilous species, Majanthemum bifolium - shade-tolerant species are distinguished with respect to illumination. In the grass-shrub layer of the studied habitats of the species, 7 rare, small, narrowly araic species are listed in the Red Book of the Kirov Region ( Pulsatilia flavescens (Zuccar.) Juz., Potentilla humifusa Willd. ex Schlecht., Centaurea sumensis Kalen., Koeleria glauca (Spreng.) DC., Eryngium planum L., Geranium sanguineum L., Carex bohemica Schreb.). And 4 species that need constant monitoring and observation in the region (Annex 2) - Campanula perscifolia L., Pulsatilia patens (L.) Mill., Platanthera bifolia (L.) Rich., Iris sibirica L.).


Alloy Digest ◽  
1976 ◽  
Vol 25 (2) ◽  

Abstract Copper Alloy No. 268 is a copper-zinc alloy with excellent cold-working properties and good resistance to corrosion. It can be cold worked by all the common fabrication processes and has a wide range of applications. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-306. Producer or source: Brass mills.


Author(s):  
Matthew S. Seligmann

As this book has shown the common conception that ‘Churchill’s “radical phase” was cast to the winds’ when he was put in charge of the Navy in October 1911, although well established in the literature, is not, in fact, accurate.1 The radical President of the Board of Trade, eager to improve the lives of the poor, became the radical Home Secretary, no less enthusiastic for social reform, who then became the radical First Lord of the Admiralty, imbued with both a desire and, perhaps more importantly, a will to intervene in order to better conditions for those who served in the Royal Navy. Accordingly, he embarked upon a major programme of improvement across a wide range of different areas all of which affected the everyday life of sailors. Alcohol intake, sexual behaviour, religious practice, corporal punishment, as well as pay and equality of progression, all came under the spotlight while Churchill was First Lord. Of course, not all of the new measures were successful and not all were progressive in the modern understanding of the term, but all of them represented significant attempts to push forward a radical agenda for change....


Author(s):  
Pete Dale

Numerous claims have been made by a wide range of commentators that punk is somehow “a folk music” of some kind. Doubtless there are several continuities. Indeed, both tend to encourage amateur music-making, both often have affiliations with the Left, and both emerge at least partly from a collective/anti-competitive approach to music-making. However, there are also significant tensions between punk and folk as ideas/ideals and as applied in practice. Most obviously, punk makes claims to a “year zero” creativity (despite inevitably offering re-presentation of at least some existing elements in every instance), whereas folk music is supposed to carry forward a tradition (which, thankfully, is more recognized in recent decades as a subject-to-change “living tradition” than was the case in folk’s more purist periods). Politically, meanwhile, postwar folk has tended more toward a socialist and/or Marxist orientation, both in the US and UK, whereas punk has at least rhetorically claimed to be in favor of “anarchy” (in the UK, in particular). Collective creativity and competitive tendencies also differ between the two (perceived) genre areas. Although the folk scene’s “floor singer” tradition offers a dispersal of expressive opportunity comparable in some ways to the “anyone can do it” idea that gets associated with punk, the creative expectation of the individual within the group differs between the two. Punk has some similarities to folk, then, but there are tensions, too, and these are well worth examining if one is serious about testing out the common claim, in both folk and punk, that “anyone can do it.”


2021 ◽  
Vol 22 (9) ◽  
pp. 4626
Author(s):  
Clément Barbereau ◽  
Nicolas Cubedo ◽  
Tangui Maurice ◽  
Mireille Rossel

Tauopathies represent a vast family of neurodegenerative diseases, the most well-known of which is Alzheimer’s disease. The symptoms observed in patients include cognitive deficits and locomotor problems and can lead ultimately to dementia. The common point found in all these pathologies is the accumulation in neural and/or glial cells of abnormal forms of Tau protein, leading to its aggregation and neurofibrillary tangles. Zebrafish transgenic models have been generated with different overexpression strategies of human Tau protein. These transgenic lines have made it possible to highlight Tau interacting factors or factors which may limit the neurotoxicity induced by mutations and hyperphosphorylation of the Tau protein in neurons. Several studies have tested neuroprotective pharmacological approaches. On few-days-old larvae, modulation of various signaling or degradation pathways reversed the deleterious effects of Tau mutations, mainly hTauP301L and hTauA152T. Live imaging and live tracking techniques as well as behavioral follow-up enable the analysis of the wide range of Tau-related phenotypes from synaptic loss to cognitive functional consequences.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Blazej Slazak ◽  
Klara Kaltenböck ◽  
Karin Steffen ◽  
Martyna Rogala ◽  
Priscila Rodríguez-Rodríguez ◽  
...  

AbstractCyclotides are cyclic peptides produced by plants. Due to their insecticidal properties, they are thought to be involved in host defense. Violets produce complex mixtures of cyclotides, that are characteristic for each species and variable in different environments. Herein, we utilized mass spectrometry (LC–MS, MALDI-MS), transcriptomics and biological assays to investigate the diversity, differences in cyclotide expression based on species and different environment, and antimicrobial activity of cyclotides found in violets from the Canary Islands. A wide range of different habitats can be found on these islands, from subtropical forests to dry volcano peaks at high altitudes. The islands are inhabited by the endemic Viola palmensis, V. cheiranthifolia, V. anagae and the common V. odorata. The number of cyclotides produced by a given species varied in plants from different environments. The highest diversity was noted in V. anagae which resides in subtropical forest and the lowest in V. cheiranthifolia from the Teide volcano. Transcriptome sequencing and LC–MS were used to identify 23 cyclotide sequences from V. anagae. Cyclotide extracts exhibited antifungal activities with the lowest minimal inhibitory concentrations noted for V. anagae (15.62 μg/ml against Fusarium culmorum). The analysis of the relative abundance of 30 selected cyclotides revealed patterns characteristic to both species and populations, which can be the result of genetic variability or environmental conditions in different habitats. The current study exemplifies how plants tailor their host defense peptides for various habitats, and the usefulness of cyclotides as markers for chemosystematics.


2021 ◽  
Vol 53 (3) ◽  
pp. 271-282
Author(s):  
Mónika Sinigla ◽  
Erzsébet Szurdoki ◽  
László Lőkös ◽  
Dénes Bartha ◽  
István Galambos ◽  
...  

AbstractThe maintenance of protected lichen species and their biodiversity in general depends on good management practices based on their distribution and habitat preferences. To date, 10 of the 17 protected lichen species of Hungary have been recorded in the Bakony Mts including the Balaton Uplands region. Habitat preferences of three protected Cladonia species (C. arbuscula, C. mitis and C. rangiferina) growing on underlying rocks of red sandstone, basalt, Pannonian sandstone and gravel were investigated by detailed sampling. We recorded aspect, underlying rock type, soil depth, pH and CaCO3 content, habitat type (as defined by the General National Habitat Classification System Á-NÉR), all species of lichen, bryophyte and vascular plants as well as percentage cover of exposed rock, total bryophytes, lichens, vascular plants and canopy, degree of disturbance and animal impacts. Sporadic populations of these species mostly exist at the top of hills and mountains in open acidofrequent oak forests, but they may occur in other habitats, such as closed acidofrequent oak forests, slope steppes on stony soils, siliceous open rocky grasslands, open sand steppes, wet and mesic pioneer scrub and dry Calluna heaths. Cladonia rangiferina was found to grow beneath higher canopy cover than either C. arbuscula or C. mitis in the Balaton Uplands. Furthermore, there were significant differences in canopy cover between occupied and unoccupied quadrats in the case of all three species. Cladonia rangiferina is a good indicator species of natural habitats in Hungary due to its restricted distribution and low ecological tolerance. These results may lead to the adoption of effective conservation methods (e.g. game exclusion, artificial dispersal) in the future.


BMC Genomics ◽  
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Erika Berenice Martínez-Ruiz ◽  
Myriel Cooper ◽  
Jimena Barrero-Canosa ◽  
Mindia A. S. Haryono ◽  
Irina Bessarab ◽  
...  

Abstract Background Cylindrospermopsin is a highly persistent cyanobacterial secondary metabolite toxic to humans and other living organisms. Strain OF001 and A210 are manganese-oxidizing bacteria (MOB) able to transform cylindrospermopsin during the oxidation of Mn2+. So far, the enzymes involved in manganese oxidation in strain OF001 and A210 are unknown. Therefore, we analyze the genomes of two cylindrospermopsin-transforming MOB, Pseudomonas sp. OF001 and Rubrivivax sp. A210, to identify enzymes that could catalyze the oxidation of Mn2+. We also investigated specific metabolic features related to pollutant degradation and explored the metabolic potential of these two MOB with respect to the role they may play in biotechnological applications and/or in the environment. Results Strain OF001 encodes two multicopper oxidases and one haem peroxidase potentially involved in Mn2+ oxidation, with a high similarity to manganese-oxidizing enzymes described for Pseudomonas putida GB-1 (80, 83 and 42% respectively). Strain A210 encodes one multicopper oxidase potentially involved in Mn2+ oxidation, with a high similarity (59%) to the manganese-oxidizing multicopper oxidase in Leptothrix discophora SS-1. Strain OF001 and A210 have genes that might confer them the ability to remove aromatic compounds via the catechol meta- and ortho-cleavage pathway, respectively. Based on the genomic content, both strains may grow over a wide range of O2 concentrations, including microaerophilic conditions, fix nitrogen, and reduce nitrate and sulfate in an assimilatory fashion. Moreover, the strain A210 encodes genes which may convey the ability to reduce nitrate in a dissimilatory manner, and fix carbon via the Calvin cycle. Both MOB encode CRISPR-Cas systems, several predicted genomic islands, and phage proteins, which likely contribute to their genome plasticity. Conclusions The genomes of Pseudomonas sp. OF001 and Rubrivivax sp. A210 encode sequences with high similarity to already described MCOs which may catalyze manganese oxidation required for cylindrospermopsin transformation. Furthermore, the analysis of the general metabolism of two MOB strains may contribute to a better understanding of the niches of cylindrospermopsin-removing MOB in natural habitats and their implementation in biotechnological applications to treat water.


2021 ◽  
pp. 104063872110245
Author(s):  
Sabri A. Rahman ◽  
Kuan H. Khor ◽  
Siti Khairani-Bejo ◽  
Seng F. Lau ◽  
Mazlina Mazlan ◽  
...  

Leptospirosis is a serious bacterial disease that affects both humans and animals. A wide range of symptoms have been described in humans; the disease in dogs is commonly associated with kidney and/or liver disease. In Malaysia, information about the common serovars infecting dogs is limited. Therefore, we investigated the occurrences of leptospirosis in 124 pet dogs diagnosed with kidney and/or liver disease. Blood, urine, abdominal effusion, and/or kidney and liver were collected from the dogs. Based on microscopic agglutination testing, 53 of 124 (42.7%) dogs were seropositive for leptospiral exposure. Sera were frequently positive to serovars Bataviae ( n = 12), Javanica ( n = 10), and Icterohaemorrhagiae ( n = 10). Direct detection using PCR showed that 42 of 124 (33.9%) of the whole blood and 36 of 113 (31.9%) urine samples were positive for pathogenic Leptospira spp. By PCR, 2 of 23 (9.1%) kidney and 2 of 23 (9.1%) liver were positive for pathogenic Leptospira spp. Abdominal effusion from 4 dogs were PCR-positive for pathogenic Leptospira spp. The species detected were L. interrogans, L. borgpetersenii, L. kirschneri, and L. kmetyi by partial 16S rRNA sequencing. We further identified and characterized 11 Leptospira spp. isolates from 8 dogs as serovars Bataviae, Javanica, and Australis. The mortality rate of the Leptospira-infected dogs was high (18 of 53; 34%).


1999 ◽  
Vol 6 (2) ◽  
pp. 224-271 ◽  
Author(s):  
Khaled Fahmy

AbstractThe reform of the Egyptian criminal justice system in the nineteenth century traditionally has been viewed as forming an important step in the establishment of a liberal and just rule of law. By studying how forensic medicine was introduced into nineteenth-century Egypt, I argue that the need to exercise better control over the population and to monitor crime lay behind the reform process as much as liberal ideas borrowed from Europe did. Drawing on a wide range of archival material, both legal and medical, I analyze the role played by autopsy in the criminal system and argue that the practice of autopsy was viewed differentially by 'ulamā', by Arabic-speaking, French-educated doctors and by the mostly illiterate masses. And contrary to the common wisdom, I conclude that the "modernization" of the Egyptian legal system was intended not to displace the sharīa but to support it.


Sign in / Sign up

Export Citation Format

Share Document