scholarly journals Species diversity of root rot pathogens of apple tree of the genus Fusarium Link in Southern Russia

2020 ◽  
Vol 21 ◽  
pp. 00005
Author(s):  
Irina Astapchuk ◽  
Galina Yakuba ◽  
Andrei Nasonov
Keyword(s):  
Root Rot ◽  
Apple Tree ◽  
Fruit Crops ◽  
North Caucasus ◽  
Genus Fusarium ◽  
The North ◽  
Rostov Region ◽  
Southern Russia ◽  
First Time ◽  
Occurrence Of Species

For horticulture in the North Caucasus, and Southern Russia as a whole, root rot of fruit crops is a serious problem, especially in nurseries and young gardens. In recent years, the harmfulness of species of the genus Fusarium Link as pathogens of root rot in the apple tree of domestic Malus domestica Borkh has been increasing. As a result of the studies, 115 samples of seedlings from four examined regions of Southern Russia were studied, 264 fungal isolates were isolated, among which 11 species of the genus Fusarium were found. The composition and occurrence of species were heterogeneous at its various sampling points. So, in the industrial gardens of the Krasnodar Territory and Karachay-Cherkess Republic, species F. sporotrichioides Sherb. and F. oxysporum Schltdl. prevailed, in the Belgorod region – F. sambucinum Fuskel, in the Rostov region -F. sporotrichioides and F. proliferatum Matsush. The most common pathogens of rotting roots of apple seedlings in the entire studied sample were: F. sporotrichioides – 81 isolates, F. proliferatum – 37 isolates and F. oxysporum – 35 isolates. The rare species among the sample were F. avenaceum – isolates, as well as the pathogens that we isolated for the first time in the region as rot pathogens of F. solani (Mart.) Sacc. and F. poae (Peck) Wollenw.

Sphagnum mosses (Sphagnaceae, Bryophyta) of mires Chefandzar and Masota in North Ossetia (Caucasus)

2018 ◽  
Vol 52 (2) ◽  
pp. 455-462 ◽  
Author(s):  
G. Ya. Doroshina ◽  
I. A. Nikolajev
Keyword(s):  
Plant Communities ◽  
The Other ◽  
North Caucasus ◽  
Sphagnum Mosses ◽  
Greater Caucasus ◽  
The North ◽  
First Time ◽  
North Ossetia

Sphagnum mires on the Greater Caucasus are rare, characterized by the presence of relict plant communities of glacial age and are in a stage of degradation. The study of Sphagnum of Chefandzar and Masota mires is carried out for the first time. Seven species of Sphagnum are recorded. Their distribution and frequency within the North Caucasus are analyzed. Sphagnum contortum, S. platyphyllum, S. russowii, S. squarrosum are recorded for the first time for the study area and for the flora of North Ossetia. The other mosses found in the study area are listed.

Materials to the lichen flora of Samurskiy Ridge (high mountainous Dagestan)

2018 ◽  
Vol 52 (2) ◽  
pp. 397-406
Author(s):  
A. B. Ismailov ◽  
G. P. Urbanavichus
Keyword(s):  
North Caucasus ◽  
Lichenicolous Fungi ◽  
Greater Caucasus ◽  
Altitudinal Range ◽  
The North ◽  
New Findings ◽  
Mountainous Landscapes ◽  
First Time ◽  
Lichen Flora

The lichens and lichenicolous fungi of high mountainous landscapes of Samurskiy Ridge were studied in altitudinal range 2400–3770 m a. s. l. for the first time and 112 species are recorded. Among them 33 species, 10 genera (Arthrorhaphis, Baeomyces, Calvitimela, Epilichen, Lambiella, Psorinia, Rufoplaca, Sagedia, Sporastatia, Tremolecia) and 4 families (Anamylopsoraceae, Arthrorhaphidaceae, Baeomycetaceae, Hymeneliaceae) are new for Dagestan, six species (Buellia uberior, Carbonea atronivea, Lecanora atrosulphurea, Lecidea fuliginosa, L. swartzioidea, Rhizoplaca subdiscrepans) are reported for the first time for the Greater Caucasus and two species (Acarospora subpruinata and Rhizocarpon postumum) — for the North Caucasus. Most of the new findings were collected from 3500–3770 m a. s. l.

scholarly journals Dynamics of the abundance of cuckoo wasps (Hymenoptera, Chrysididae) in the conditions of the altitudinal-belt heterogeneity of the North Caucasus

2021 ◽  
Vol 35 ◽  
pp. 00023
Author(s):  
Nikolay Vinokurov
Keyword(s):  
Population Dynamics ◽  
New Species ◽  
Weather Conditions ◽  
Nature Management ◽  
North Caucasus ◽  
Protection Measures ◽  
Altitudinal Belt ◽  
The North ◽  
Short Period ◽  
First Time

The work provides data on the dynamics of the abundance of 205 taxa from 19 genera: Cleptes, Colpopyga, Elampus, Omalus, Philoctetes, Pseudomalus, Hedychridium, Hedychrum, Holopyga, Chrysidea, Chrysis, Euchroeus, Chrysura, Pseudochrysis, Spinolia, Spinolia, including species rare and new for the fauna of the North Caucasus and Russia. By the nature of the population dynamics, five groups of cuckoo wasps were identified: spring – represented by 7 species from 4 genera; spring-summer – 76 species from 10 genera; summer – 113 species from 16 genera; summer-autumn – 4 species from 2 genera and spring-summer-autumn – 5 species from 3 genus. According to the duration of flight, eurychronous species of cuckoo wasps were identified, which are found throughout the season from spring to autumn; mesochronous – the years of which affect the end of May and summer months and stenochronous – confined to a short period of time. Eurychronic accounted for 2.4%, mesochronous 24.9%, stenochronic 72.7%. The number of generations of cuckoo wasps is related to the dynamics of the number of the host. In the mountains, the peaks of activity shift towards the middle of summer, most species have one peak of activity; due to the frequent changes in weather conditions in the mountains, the phenological characteristics of the cuckoo wasps and their hosts do not coincide in terms with the lowland populations and the periods of activity can be extended in time. Phenological characteristics of rare and new species for the fauna of the North Caucasus and Russia are presented for the first time. The data obtained expand the understanding of the biodiversity and dynamics of the abundance of cuckoo wasps in the North Caucasus and can be used for environmental protection measures and rational nature management in the south of Russia.

scholarly journals Seasonal and regional features of the distribution of rotavirus incidence in the Russian Federation

2015 ◽  
Vol 20 (2) ◽  
pp. 52-54
Author(s):  
A. T Podkolzin ◽  
D. E Kurochkina ◽  
G. A Shipulin
Keyword(s):  
Russian Federation ◽  
Temporal Distribution ◽  
Federal District ◽  
North Caucasus ◽  
The North ◽  
Regional Features ◽  
Rotavirus Vaccines ◽  
Rostov Region ◽  
The Russian Federation ◽  
Nizhny Novgorod Region

In the work there was performed an analysis of the indices of recorded incidence of rotavirus infection (RVI) in the territory of 40 subjects of the Russian Federation for the period 2008-2012. For the identification of the monthly peak of the incidence there was evaluated the temporal distribution of the relative indices of the RVI incidence within each subject of the observation. There was revealed the independent beginning of the winter-spring seasonal rise of the RVI incidence in three groups of territories of the Russian Federation (1 - Kirov, Kostroma, Nizhny Novgorod region; 2- Republic of Khakassia, Kemerovo region; 3 - Amur region). In the territory of the South and the North Caucasus Federal District (Krasnodarsky and Stavropolsky Krai, Rostov region) there was noted the second, summer-autumn seasonal rise in the RVI incidence. The obtained data provide an overview of the seasonal-geographical distribution of the RVI incidence in the territory of Russia in conditions of the absence of the use of rotavirus vaccines

scholarly journals Identification of arbuscular mycorrhizal fungi in soils of the North Caucasus based on Illumina MiSeq data for ITS1 and ITS2 regions

2020 ◽  
Vol 23 ◽  
pp. 02013
Author(s):  
Andrey P. Yurkov ◽  
Alexey A. Kryukov ◽  
Anastasia O. Gorbunova ◽  
Andrey V. Shcherbakov ◽  
Peter M. Zhurbenko
Keyword(s):  
Sample Preparation ◽  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Illumina Miseq ◽  
North Caucasus ◽  
Operational Taxonomic Units ◽  
The North ◽  
First Time ◽  
Its1 And Its2

The objective of our research was to analyze the efficiency of identification of arbuscular mycorrhizal fungi (AMF) for 2 regions: ITS1 and ITS2 regions of AMF DNA isolated from the soils of the North Caucasus (Karachay-Cherkessia). For the first time the necessity of different AMF species identification using both ITS regions was revealed, but not one region. The research demonstrated: 1) the set of taxa is different using ITS1- and ITS2-based identification; 2) analysis of the ITS1 region reveals a greater number of operational taxonomic units; 3) ITS2 allows identification of AMF at the species level more often. Sample preparation for Illumina MiSeq analysis was optimized. Obligatory stages in the sample preparation were the purification of DNA in the agarose gel in Silica after isolation, as well as separate amplification of ITS1 and ITS2 followed by combining and joint sequencing for each sample. The results showed the highest AMF biodiversity for the 176Te sample from the ecosystem of the subalpine meadow of the southeastern slope of Malaya Hatipara mountain (43°25′48.0″N 41°42′31.0″E; 2401 m above sea level), in which 8 species of AMF were identified (Archaeospora spainiae, Claroideoglomus claroideum, Diversispora versiformis, Entrophpora infrequens, Funneliformis mosseae, Glomus indicum, Paraglomus laccatum, Rhizophagus irregularis).

scholarly journals Radiocarbon dating of the bronze age bone pins from Eurasian steppe

2011 ◽  
Vol 38 (2) ◽  
pp. 107-115 ◽  
Author(s):  
Natalia Shishlina ◽  
Johan Plicht ◽  
Elya Zazovskaya
Keyword(s):  
Bronze Age ◽  
Radiocarbon Dating ◽  
North Caucasus ◽  
14C Dating ◽  
The Caucasus ◽  
The North ◽  
Eurasian Steppe ◽  
Culture Formation ◽  
First Time ◽  
The Bronze Age

AbstractBone catapult and hammer-headed pins played one of very specific roles in funerary offerings in the Bronze Age graves uncovered in the Eurasian Steppes and the North Caucasus. Scholars used different types of pins as key grave offerings for numerous chronological models. For the first time eight pins have been radiocarbon dated. 14C dating of bone pins identified the catapult type pin as the earliest one. They marked the period of the Yamnaya culture formation. Then Yamnaya population produced hammer-headed pins which became very popular in other cultural environments and spread very quickly across the Steppe and the Caucasus during 2900–2650 cal BC. But according to radiocarbon dating bone pins almost disappeared after 2600 cal BC.

A new species of Pedicia s.str. (Diptera: Pediciidae) from the North Caucasus, Russia

Zoosymposia ◽  
2009 ◽  
Vol 3 (1) ◽  
pp. 199-202 ◽  
Author(s):  
NIKOLAY M. PARAMONOV
Keyword(s):  
New Species ◽  
Palaearctic Species ◽  
North Caucasus ◽  
The Caucasus ◽  
The North ◽  
First Time ◽  
A New Species

A new species, Pedicia (Pedicia) savtshenkoi, is described from Karachay-Cherkess Republic, Russia. This species of nominative subgenus Pedicia is discovered for the first time in the Caucasus. A key to males of West Palaearctic species of Pedicia (Pedicia) is presented.

The North Caucasus between the Ottoman Empire and the Tsardom of Muscovy: The Beginnings, 1552-1570

2016 ◽  
Vol 20 (1) ◽  
pp. 105-125
Author(s):  
Murat Yaşar
Keyword(s):  
Cold War ◽  
Ottoman Empire ◽  
The Black Sea ◽  
Eastern European ◽  
North Caucasus ◽  
Spheres Of Influence ◽  
The North ◽  
Rising Power ◽  
First Time ◽  
Shed Light

The present paper explores the hitherto unknown beginnings of the Ottoman-Russian imperial rivalry by focusing on the mid-16th-century encounter between the Ottoman Empire and the Tsardom of Muscovy over the North Caucasus, where the ambitions of these two asymmetric powers—the Ottomans being an established “super power” and the Muscovites a rising power—became entangled for the first time. This first encounter, which was the harbinger of many future engagements not only in this region but also in the broader steppe frontier around the Black Sea, was more of a “cold war” rather than a military confrontation, as both the Ottomans and the Muscovites rather preferred to establish spheres of influence and eventually their hegemony over the North Caucasus through their vassals and clients. In addition to demonstrating the Tsardom of Muscovy’s initial claims and policies over the North Caucasus, this study will shed light on the reasons of the Ottoman failure to transform their nominal claims over the region to a de facto hegemony similar to what they had established over Eastern European principalities.

scholarly journals Relative Variability in Signs of Reproductive Fitness of Pigs

2021 ◽  
Author(s):  
Olga L. Tretyakova ◽  
Anna S. Degtyar ◽  
Victoria S. Solonnikova
Keyword(s):  
Multiple Regression ◽  
Objective Assessment ◽  
Reproductive Fitness ◽  
North Caucasus ◽  
The North ◽  
Rostov Region ◽  
The Future ◽  
Breeding Farms ◽  
Relative Variability

Studies of relative variability make it possible to forecast the future. The equations of rectilinear and multiple regression make it possible to determine a productive indicator by indirectly evaluating correlatively related features. We developed mathematical modelson the relative variability in the signs of reproductive fitness of pigs in the breeding factories of the North Caucasus: “Ventsy-Zarya”, “Gulkevichsky”, “Kavkaz” and “Zarya” of the Krasnodar Territory, “Rossiya” of the Stavropol Territory, and “Rossiya” of the Rostov region. We analyzed the correlations of reproductive fitness in these breeding farms to determine a reliable and objective assessment of cause-and-effectdependencies, and the values, nature and direction of their action. Significant differences were established between the nature of relations in various breeding farms; however, their action vectorscoincided. The models we developed take into account all of the processes occurring in the population under the influence of tribal selectionand can be used in the planning of breeding measures. Keywords: pig breeding, relative variability, correlation, regression, breeding index

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