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Orenburg State University january 17, 2022   RU/EN
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Sukhova E.A., Gorbunova O.S., Savin E.Z., Nemtseva N.V., Golovin S.E.
THE SENSITIVITY OF VARIOUS CURRANT SPECIES AND VARIETIES TO TRACHEOMYCOSIS [№ 7 ' 2016]
Currently mycotic wilting (tracheomycosis) is widespread. It caused ubiquitous significant reduction of areas which field in black currant. This resulted in negative environmental, economic and social consequences. Over the past decade in the southern Orenburg region, as in other regions of Russia, Kazakhstan, Ukraine verticilliaceous wilting of black currant, which caused its death, was registered. Wilting is not found on golden and white currant (Ribes aureum, R. niveum). Redcurrant (R. rubrum) is slightly damaged, in black currant (Ribes nigrum), on the contrary, there is destruction of certain varieties up to 90 %. Based on the results of our own research, the most resistant to tracheomycoses varieties — Luchezarnaya, Yadryenaya, Globus and several other varieties the resistance of which was estimated to be 4-5 pointswere revealed. The least resistant varieties were Selechenskaya, Rusalochka, Vologda, and others. The main pathogens are presented by fungi Fusarium spp., Alternaria spp., Verticillium spp. Activation of fungi in the second half of vegetation (July — September) was revealed. This is due to the temperature increase against low water supply in the designated months within the Orenburg region. It was found that in the case of complex Verticillium spp. and Fusarium spp. infection wilting followed by plant death was observed. Verticillium fungi should be considered to be the most probable cause of death of black currant. Species differences in the production of tannins found in the bark in greatest numbers and perimedular zone of golden, white and red currants were revealed. The least number was found in the cambium of black currant. The problem of tracheomycotic wilting of black currant can be successfully solved by means of selection and cultivation of resistant varieties to the causative agents. The obtained results allow us to advance in the understanding of formation mechanism of infectious stability of black currant, and to identify the ways of therapy and prevention of mycotic wilting of Ribes nigrum.

Nemtseva N.V., Gorbunova O.S., Bogoutdinov D.Z., Savin E.Z., Malenkova O.V.
TO THE QUESTION OF WITHERING OF BLACKCURRANT [№ 5 ' 2016]
In certain regions of the Russian Federation and abroad mass withering of blackcurrant is observed in the last decade (Ribes nigrum L.). The area of distribution and injuriousness of a disease includes the Voronezh, Orenburg, Rostov regions, the Lower Volga and Central Volga area, regions of East Ukraine (The Kharkiv, Donetsk regions) and Northwest Kazakhstan. There is evidence that the death of R. nigrum may be caused by fungi of the genus Verticillium and Fusarium and Alternaria. In this regard, in recent years is the study of the mycological component of this culture. The aim of this work was the comparative characterization of complexes of microscopic fungi that live on trunks, roots, leaves of black currant. The results of studies in damaged plants revealed the presence of three genera of fungi — Fusarium, Alternaria, Verticillium. In addition, in some cases, discovered nematodes and spider mites, whose role is not installed. Comparing the received data with the temperature regime of the territory of the Orenburg region showed the greatest peak of microscopic fungi pathogenicity for R. nigrum in the period July — August. It is expected that wilt currant bushes initiated phytoplasma infection and subsequent contamination of fungi.The received results allow to specify the stages of the research and determine the methods of prevention and therapy of wilt blackcurrant.

Takhchidi E.Kh., Gorbunova K.S.
APPLYING SULFATED GLYCOSAMINOGLYCANS IN OPHTHALMOLOGY [№ 12 ' 2012]
Excessive cicatrization after tissue damage is an actual problem of ophthalmology. Sulfated glycosaminoglycans is a promising substance for studying and applying in clinic to reduce inflammation, control reparative processes and prevent scarring.

Gorbunova N.Yu., Pashtaev N.P.
ULTRASONIC BIOMICROSCOPY AND OPTICAL COHERENT TOMOGRAPHY OF ANTERIOR EYE SECTION OF PATIENTS WITH REFRACTORY GLAUCOMA AT DIFFERENT TERMS AFTER HYPOTENSIVE OPERATIONS WITH USING OF PERFORATED DRAIN FROM DIGEL [№ 12 ' 2007]


[№ 5 (app.1) ' 2006]


Editor-in-chief
Sergey Aleksandrovich
MIROSHNIKOV

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