Biology

Fluctuating asymmetry of pholidosis in grass snakes found on four areas of the Republic of Tatarstan is considered in this article. We carried out the statistical analysis of asymmetrical traits and counted the integral characteristics of fluctuating asym

Fluctuating asymmetry of pholidosis in grass snakes found on four areas of the Republic of Tatarstan is considered in this article. We carried out the statistical analysis of asymmetrical traits and counted the integral characteristics of fluctuating asymmetry. Asymmetry of pholidosis was observed in 32% of individuals. Asymmetry in features which are characterized by highest diversity (temporal, postorbital and sublabial scutes) is more common. There are no statistically significant sex, age or population differences in the values of fluctuating asymmetry.

Current State of Investigation of Cell Wall Surface of Microorganisms Ultrastructure under the Action of Factors Biotic and Abiotic Nature Using Methods of Atomic Force Microscopy

This article presents data about current application of atomic force microscopy for study the influence factors biotic and abiotic nature on ultrastructure and morphological features of microorganisms.

New Data on the Fauna of Myrmecophilous Beetles (Coleoptera) in the Nests of Ants Formica rufa Linnaeus, 1761 (Hymenoptera) for Territory of Saratov Province

The aim of this article is to investigate the species composition, ecological characteristics and myrmecophily Coleoptera dominant structure in nests of ants of the species Formica rufa Linnaeus, 1761 in the territory of the Saratov region. The studies were conducted mainly in the natural Park of Kumis Polyana (Saratov) and the National Park “Khvalynskiy”. To collect material were determined using standard soil methods of Zoology: screening of the substrate from the nests of ants and laboratory analysis of selected samples.

Type Specimens of Campanula L., Chamaecytisus Link, Polygala L., Thymus L., Kept in the Herbarium of Lobachevsky State University of Nizhni Novgorod (NNSU)

The article describes basic stages of creation and development the Herbarium of Lobachevsky State University of Nizhni Novgorod (NNSU), since the 20-s of the last century, shows the main areas of floristic researches. Designated the current status of the Herbarium. Given a list of the main species of plants described from the territory of the region. The necessity of the search and identification of authentic samples is shown. Results of revision on the type in the in the Herbarium of Lobachevsky State University of Nizhni Novgorod (NNSU) are psesented.

In Vivo and in Vitro Studies of the Effect of Chitosan on the Bone Defect Repair Process

The objective of our in vivo and in vitro studies was to examine the molecular and cellular mechanisms of the anti-inflammatory and wound-healing effects of chitosan barriers when used for guided tissue regeneration (GTR) in a rabbit model. An ELISA test of the rabbit blood serum conducted during the treatment of alveolar bone defects has confirmed the ability of chitosan to reduce inflammation fast by suppressing the TNF- cytokine production.

New Floristic Finds in the Saratov Region

Provides information about finding new species of flora of the Saratov region Hibiscus triynum and Thesium moesiacum, and clarifies the distribution of rare in the Saratov region Sonchus palustris and Conringia orientalis.

Macrozoobenthos of Hyperhaline Waterbodies of Bogdino-Baskunchakski Nature Reserve

Macrozoobenthos assay carried out in hyperhaline waterbodies (Gor’kaya river and Lake Baskunchak littoral) of Bogdino-Baskunchakski nature reserve yielded 14 taxa: bugs – 3 (from family Corixidae: Cymatia rogenhoferi (Fieber, 1864), Paracorixa concinna (Fieber, 1848) and Sigara assimilis (Fieber, 1848)), chironomids – 2 (Baeotendipes noctivaga Kieffer, 1911, Orthocladius sp.), other dipterans – 4 (Limoniidae, Dolichopodidae, Ephydridae and Tabanidae (род Chrysops) larvae), beetles – 5 (Dytiscidae: Cybister (s.

Optimization of Cultivation Conditions of Azotobacter Vinelandii D-08 to Increase the Yield of Exopolysaccharide

In current research the optimization of culture conditions Azotobacter vinelandii D-08 on nutrient mediums with different content of molasses – 20, 30, 40 and 50% (by weight) was conducted. It is established that the maximum accumulation of polysaccharides was 13,78 g/l and it was observed at growth of the strain on the medium containing 50% molasses for 72 hours. The results of the method of gel permeation chromatography showed that the obtained polysaccharide has a molecular weight of 0.93532 kDa and 312.5014 kDa.

Complex Assessment of Toxicity of the Polymeric Connection Possessing Antimicrobic Activity

he complex estimation of toxicity of the polymer compounds – poly azolidin ammonium, modified hydrate ions of iodine, which has high antimicrobial activity was held. It is established that working concentrations of parent drug and its variants with different hydrate ions of iodine content do not cause death of biotestobjects of Daphnia magna Straus.

Forming Strout Ability of English Rose Garden Party at the Introduction in the Botanical Garden Sgu

The article presents the results of the roses hybrid introduction. The results of the research on the formation and development of shoots of five sorts of roses that refer to garden group Austins selection in the conditions of the «Botanical Garden» Education and Research Ctnter are presented. The features of the relation of generative and vegetative shoots has been studied as decorative signs. We have studied the ability of the sorts to the resumption of bush size after winter period. The possibilities of using these sorts for landscape gardening in the Lower Volga region.

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