scholarly journals Examination of the plum psyllid (Cacopsylla pruni Scopoli), a vector of European Stone Fruit Yellows (ESFY) phytoplasma in the countryside of Boldogkőváralja (Hungary)

2019 ◽  
pp. 5-11
Author(s):  
Dominika Bodnár ◽  
Emese Mergenthaler ◽  
Orsolya Viczián ◽  
Gábor Tarcali
Keyword(s):  
Molecular Methods ◽  
Stone Fruit ◽  
North East ◽  
Plant Samples ◽  
Cacopsylla Pruni ◽  
Disease Spreading ◽  
First Time

European Stone Fruit Yellows(ESFY) phytoplasma disease on apricot was identified by molecular methods for the first time in 1992 in Hungary. Currently, the pathogen is known as’ Ca. Phytoplasma prunorum’. Since, the pathogen become wide-spreaded and manyof the apricot-plantations had to be eliminated. In 2009 and 2010 in the countryside of Boldogkőváralja the infection of the apricot-plantations was about 77%. As the disease spreading and causing large damages, we studied the roleo fpossible vector,the plum psyllid (Cacopsylla pruni Scopoli) in the areas of Boldogkőváralja, North-East-Hungary. Studies were done in the year of 2016, monitoring the behaviour of the psyllids in four different areas, and caught 41 them for further examination. We collected plant samples from those apricot trees, on which the plum psyllids were caught.

YUKAGIR GEOGRAPHICAL TERMS IN TOPONYMY OF THE KOLYMA RIVER BASIN

2020 ◽  
Vol 9 (4(73)) ◽  
pp. 29-33
Author(s):  
N.S. Bagdaryyn
Keyword(s):  
River Basin ◽  
Semantic Analysis ◽  
Comparative Method ◽  
Linguistic Analysis ◽  
Word Formation ◽  
Morphological Features ◽  
North East ◽  
The North ◽  
First Time ◽  
Kolyma River

The article continues the author's research on the toponymy of the North-East of the Sakha Republic, in particular the Kolyma river basin, in the aspect of the interaction of related and unrelated languages. The relevance of this work is defined in the description of local geographical terminology of Yukagir origin, as a valuable and important material in the further study of toponymy of the region. For the first time, the toponymy of the Kolyma river basin becomes the object of sampling and linguistic analysis of toponyms with local geographical terms of Yukagir origin in order to identify and analyze them linguistically. The research was carried out by comparative method, word formation, structural, lexical and semantic analysis. As a result of the research, phonetic and morphological features are revealed, the formation of local geographical terms and geographical names of Yukagir origin is outlined, and previously unrecorded semantic shifts and dialectisms are revealed. The most active in the formation of terms and toponyms is the geographical term iилil / eҕal 'coast‘, which is justified by the representation of the Yukagirs’ coast' home, housing

THE AUTOLYSIS PRODUCTS OF GLUCOSINOLATES IN „LEPIDIUM CAMPESTRE“ (L.) W. T. AITON (BRASSICACEAE)

2021 ◽  
Author(s):  
Milan S. Dekić ◽  
◽  
Amina M. Gusinac
Keyword(s):  
Essential Oil ◽  
Degradation Products ◽  
Reproductive Organs ◽  
Aerial Parts ◽  
Plant Organ ◽  
Plant Samples ◽  
Lepidium Campestre ◽  
First Time

Plant samples of Lepidium campestre (L.) W. T. Aiton (pepperwort) were analyzed in detail by GC and GC-MS. The analysis of the autolysates obtained from inflorescences, stems, leaves, and underground parts and the essential oil obtained by hydrodistillation allowed the identification of a series of glucosinolate degradation products, mainly isothiocyanates and nitriles. Besides previously identified ones in this species, the analyses resulted in the identification of degradation metabolites identified in pepperwort for the first time, and suggested the presence of heptyl glucosinolate, 3- phenylpropyl glucosinolate, glucoiberverin, glucoiberin, sinalbin, glucoerucin, glucoberteroin, gluconasturtiin, glucolepigramin, glucolesquerellin, glucobrassicanapin, and glucotropaeolin in this species as the most likely glucosinolate precursors. The results showed the localized accumulation of glucoberteroin, glucoerucin, and glucolesquerellin in the roots, the plant organ most exposed to pathogens, whereas sinalbin and glucobrassicanapin were accumulated in the reproductive organs and the organs most exposed to herbivores, i.e. in the aerial parts of the plant.

scholarly journals EXTERNAL DEFENSIVE CONSTRUCTIONS OF JURCHEN CITES IN EASTERN XIA

2020 ◽  
Author(s):  
Н.Г. Артемьева ◽  
С.В. Макиевский
Keyword(s):  
Far East ◽  
Far East Of Russia ◽  
13Th Century ◽  
Mountain Landscape ◽  
Topographic Features ◽  
North East ◽  
The Far East ◽  
Natural Terrain ◽  
First Time

Государство Восточное Ся (1215–1233 гг.) было создано чжурчжэнями для защиты от монгольского вторжения на территории Северо-Востока Китая, в которую входил юг Дальнего Востока России. При строительстве городов-крепостей широко использовались естественно-географические условия. Горный ландшафт создавал возможность строить горные городища в распадках сопок, используя природные условия как дополнительные преграды. При исследовании фортификационных сооружений Шайгинского городища были выявлены основные и дополнительные оборонные сооружения чжурчжэньских укрепленных поселений, прослежена эволюция средневекового оборонного зодчества Дальнего Востока. В наиболее уязвимых местах возводились внешние дополнительные сооружения – реданы и отсекающие валы. Редан Шайгинского городища представлял собой сооружение шириной около 30 м, окруженное тремя валами и тремя рвами. В качестве дополнительного укрепления применялись отсекающие рвы, которые перекрывали подходы по мысам к городищу. На Шайгинском городище прослежено четыре отсекающих рва. Внешние фортификационные сооружения в виде редана и отсекающих рвов выполняли функцию первой линии защиты чжурчжэньских городов-крепостей. Эти укрепления впервые зафиксированы на горных городищах периода государства Восточного Ся. Их можно считать достижением чжурчжэньских градостроителей XIII в. The Eastern Xia Kingdom(1215–1233) was established by the Jurchens to defend themselves against invasions of the Mongols in North-East Chinathat included the southern parts of the Far East of Russia. Local topographic features were widely used in construction of city fortresses. Mountain landscape provided an opportunity to build mountainous fortified settlements into narrow valleys of sopkas to follow the natural terrain contours and use them to create additional obstacles. Excavations of the Shayginskoye hillfort revealed main and additional defensive constructions of Jurchen fortified settlements tracing the evolution of medieval defensive architecture in the Far East. Additional external constructions such as redans and cut-off ramparts were erected in soft spots of fortifications. The redan of the Shayginskoye hillfort was a construction around 20 mwide which was surrounded with three ramparts and three ditches. Cut-off ditches that closed access to the hillfort through promontories were used as an additional obstacle. Four cut-off ditches were identified at the Shayginskoye hillfort. External fortification constructions such as redans and cut-off ditches served to be the first defensive line of Jurchen fortress cities. This type of fortifications was recorded for the first time in mountainous hillforts of Eastern Xia. They can be regarded as an achievement of Jurchen town planners of the 13th century.

scholarly journals Parasitism with Acanthocephalus ranae in frogs (Pelophylax ridibundus Pallas 1771), from North-east Romania

2021 ◽  
Vol 58 (1) ◽  
pp. 68-73
Author(s):  
O. C. Iacob
Keyword(s):  
Small Intestine ◽  
Cylindrical Body ◽  
Duodenal Mucosa ◽  
Variable Number ◽  
Intestinal Wall ◽  
Intestinal Lumen ◽  
Average Intensity ◽  
Pelophylax Ridibundus ◽  
North East ◽  
First Time

SummaryThe present study was carried out on 10 frogs, Pelophylax ridibundus (Pallas, 1771), captured near the river Bahlui, Iasi, between April and May, 2019, for the study of digestive helminths and their effect on the digestive tract. Macroscopic examination of the general cavity revealed distension of the small intestine. The sectioning of the intestinal wall revealed a variable number of parasites (1 – 12) with a whitish cylindrical body, anchored in the duodenal mucosa. The morphological study of the parasites confirmed the species as Acantocephalus ranae. The prevalence of the infection was 60 % and the average intensity was 4.83 ± 4.15. Lesions of the small intestine were characterized by catarrhal enteritis, hemorrhagic spots and ulcers on the mucosa, occlusion and obstruction of the intestinal lumen. Histologically, eosinophilic inflammatory infiltrate in the glandular crypts, mucosal and submucosal edema, fibrosis and conjunctival hyperplasia, total mucosal atrophy, were found. The infection with Acanthocephalus ranae in Pelophylax ridibundus caused severe pathological changes, conditioned by the intensity of the infection, aspects revealed for the first time in Romania.

scholarly journals Discordant evolution of organellar genomes in peas (Pisum L.)

2020 ◽  
Author(s):  
Vera S. Bogdanova ◽  
Natalia V. Shatskaya ◽  
Anatoliy V. Mglinets ◽  
Oleg E. Kosterin ◽  
Gennadiy V. Vasiliev
Keyword(s):  
Phylogenetic Trees ◽  
Nuclear Genome ◽  
Nuclear Gene ◽  
Plant Evolution ◽  
Hybrid Origin ◽  
Mitochondrial Genomes ◽  
North East ◽  
Plastid Genomes ◽  
First Time ◽  
Evolutionary Fate

AbstractPlastids and mitochondria have their own small genomes which do not undergo meiotic recombination and may have evolutionary fate different from each other and nuclear genome, thus highlighting interesting phenomena in plant evolution. We for the first time sequenced mitochondrial genomes of pea (Pisum L.), in 38 accessions mostly representing diverse wild germplasm from all over pea geographical range. Six structural types of pea mitochondrial genome were revealed. From the same accessions, plastid genomes were sequenced. Bayesian phylogenetic trees based on the plastid and mitochondrial genomes were compared. The topologies of these trees were highly discordant implying not less than six events of hybridisation of diverged wild peas in the past, with plastids and mitochondria differently inherited by the descendants. Such discordant inheritance of organelles is supposed to have been driven by plastid-nuclear incompatibility, known to be widespread in pea wide crosses and apparently shaping the organellar phylogenies. The topology of a phylogenetic tree based on the nucleotide sequence of a nuclear gene His5 coding for a histone H1 subtype corresponds to the current taxonomy and resembles that based on the plastid genome. Wild peas (Pisum sativum subsp. elatius s.l.) inhabiting Southern Europe were shown to be of hybrid origin resulting from crosses of peas similar to those presently inhabiting south-east and north-east Mediterranean in broad sense.

scholarly journals The Library of Geologist A.Y. Krems

2014 ◽  
pp. 78-84
Author(s):  
L. P. Roshchevskaya ◽  
E. G. Buldakova
Keyword(s):  
Industrial Development ◽  
Oil And Gas ◽  
Komi Republic ◽  
North East ◽  
Oil And Gas Fields ◽  
European North ◽  
Socialist Labor ◽  
History Of ◽  
Gas Fields ◽  
First Time

For the first time there is reconstructed the history of creation of the Memorial Flat of the Doctor of Geological and Mineralogical Sciences, Professor Andrey Yakovlevich Krems, Hero of Socialist Labor, Laureate of two State Prizes of USSR (Ukhta town, Komi Republic). There is presented the characteristic of his private library, which reflected his professional interests and which he collected for several decades. A.Y. Krems developed and implemented mine oil extraction method, discovered several oil and gas fields of global impact and contributed to the industrial development of the European North-East.

scholarly journals RHD and RHCE genes polymorphism: literature review

2020 ◽  
Vol 15 (4) ◽  
pp. 38-51
Author(s):  
L. L. Golovkina ◽  
R. S. Kalandarov
Keyword(s):  
Literature Review ◽  
Molecular Methods ◽  
First Time

The article provides a literature review about RHD and RHCE polymorphisms which encode different RhD and RhC antigen variants. The data about genes RHD and RHCE polymorphisms, RhD weak types, RhD partial types and RhC variants in Russians is presented for the first time. The molecular and serological characteristics of rare RhD and RhC antigens are summarized. The role of serological and molecular methods in Rhesus system antigens identifying is shown.

scholarly journals Intraspecific Variability of the Essential Oil of Cladanthus mixtus from Morocco

2014 ◽  
Vol 9 (1) ◽  
pp. 1934578X1400900
Author(s):  
Anass Elouaddari ◽  
Abdelaziz El Amrani ◽  
Jamal JamalEddine ◽  
José G. Barroso ◽  
Luis G. Pedro ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Intraspecific Variability ◽  
Individual Plant ◽  
Aerial Parts ◽  
Plant Samples ◽  
First Time

Air-dried aerial parts of wild Cladanthus mixtus were collected from two different regions of Morocco, Bouznika and Oujda, during 2011 and 2012. Forty individual plant samples were hydrodistilled using a Clevenger apparatus and the obtained essential oils were analyzed by GC and GC/MS. The yield obtained varies greatly with a range of 0.3 to 0.8%. The chemical composition of C. mixtus oils changes from one region to another. A total of 53 constituents were identified. To the best of our knowledge, two chemotypes were defined for the first time for this species in the regions studied. 2-Methyl-2- trans-butenyl methacrylate (32.8–35.2%) / ar-curcumene (13–14%) characterize the chemotypeof the C. mixtus plants from Bouznika, and trans-β-farnesene (35.5–50.3%) the chemotype from Oujda.

scholarly journals Psychosocial Risks and Violence Against Teachers. Is It Possible to Promote Well-Being at Work?

2019 ◽  
Vol 16 (22) ◽  
pp. 4439 ◽  
Author(s):  
Berlanda ◽  
Fraizzoli ◽  
Cordova ◽  
Pedrazza
Keyword(s):  
Job Demands ◽  
Well Being ◽  
Self Report ◽  
Health Concern ◽  
Psychosocial Risks ◽  
Daily Monitoring ◽  
North East ◽  
The Impact ◽  
First Time ◽  
Psychological Demands

Teaching has been reported to be one of the most stressful occupations, with heavy psychological demands, including the need to develop positive relationships with students and their parents; relationships that, in turn, play a significant role in teachers’ well-being. It follows that the impact of any violence perpetrated by a student or parent against a teacher is particularly significant and represents a major occupational health concern. The present study examines for the first time the influence of the Job Demands-Control-Support Model on violence directed against teachers. Six hundred and eighty-six teachers working in elementary and high schools in north-east Italy completed an online, self-report questionnaire. Our findings reveal the role played by working conditions in determining teachers’ experience of violence: greater job demands are associated with most offense types, whereas the availability of diffused social support at school is associated with lower rates of harassment. Workload should be equally distributed and kept under control, and violence should gain its place in the shared daily monitoring of practices and experiences at school in order to provide a socially supportive work environment for all teachers.

Three new species of Ophryotrocha (Annelida: Dorvilleidae) from a whale-fall in the North-East Atlantic

Zootaxa ◽  
2009 ◽  
Vol 2228 (1) ◽  
pp. 43-56 ◽  
Author(s):  
HELENA WIKLUND ◽  
ADRIAN G. GLOVER ◽  
THOMAS G. DAHLGREN
Keyword(s):  
Phylogenetic Analyses ◽  
Nuclear Gene ◽  
Close Relative ◽  
North East ◽  
The North ◽  
Organic Carbon Flux ◽  
Naturally Occurring ◽  
Three New Species ◽  
First Time ◽  
Complex Organic

Three new Ophryotrocha species are described from sites with high levels of organic carbon flux including a whale-fall at 125 m depth off the Swedish coast and sediment sampled at 104 m depth beneath a fish farm in a Norwegian fjord. Phylogenetic analyses based on the nuclear gene H3 and the mitochondrial genes COI and 16S using MrBayes and Maximum Likelihood analyses show that Ophryotrocha eutrophila sp. nov. is a close relative to Ophryotrocha puerilis, while Ophryotrocha craigsmithi sp. nov. falls together with Palpiphitime lobifera, and Ophryotrocha scutellus sp. nov. occur within the 'hartmanni' clade. The genus Ophryotrocha is in our study monophyletic only if the genera Iphitime and Palpiphitime are included. Two representatives of Ophryotrocha previously described from anthropogenically-enriched sediments are here reported for the first time in very high abundance from a naturally occurring habitat. We suggest that whale falls are important habitats for the evolution of ecosystem services such as the degradation of complex organic compounds.

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