Biology

Formation of Elements of Efficiency of the Spike Spring Soft Wheat

Formation of elements efficiency of an spike wheat of different cultivar is analysed. It is offered to use for an estimation of potential productivity of a cultivar morphogenetic an efficiency index.

Features of Klonal Micropropogation of the Mountain Ash, Var. «Granatny»

The optimum variant of explant sterilization of mountain ash var. «Granatnaya» for introduction in culture in vitro has been picked up. It is shown that the nutrient medium WPM with addition of 1,0 mg/l of BAP is optimum for klonal mikropropogation, spontaneous regenerant rooting being found only on nutrient media without hormones. It has been established that the optimum variant of the nutrient medium at the stage of rooting is 1/2WPM with addition of 1,0 mg/l of NАА. Steadily propagating culture has been obtained and regular development of regenerants has been reached.

Steller Sea Lion (Eumetopias Jubatus Shreder 1776) Female Mating Behavior on Kozlova Cape Rookery (Kamchatka Peninsula)

Cause-effect relationship has been identified for each of the observed mating event. There are a numbers of behavioral phases that occurring before and after a mating process. The most important factor that initializes precopulation behavior for males is an active aggressive behavior of females, indicating the behavioral manifestations of estrus. It was estimated that a high level of activity of females on a rookery after mating can cause other mating with another males.

Protected Vascular Plants of the Nature Sanctuary «Burkinsky the Wood»

Results of research of flora of a nature sanctuary are given in this article «the Burkinsky wood». 31 types of the protected vascular plants included in the Red book of the Saratov region are revealed. The taksonomichesky, biomorphological and ekologo-tsenotichesky analysis of rare species is carried out. Paths of use of types of a nature sanctuary are defined.

Biological Properties of Bacteria-assiociants (Myzus cerasi F., 1775) (Insecta: Homoptera, Aphididae)Biological Properties of Bacteria-assiociants (Myzus cerasi F., 1775) (Insecta: Homoptera, Aphididae)

The biological properties of bacteria-assiociants Myzus cerasi F. in territory of the Saratov region weree studied. 39 strains of bacteria were revealed. 66.6% of the strains were able to use glucose, 87.0% – fixed molecular nitrogen, 56.3% – had the ability to grow at 10 °C, 92.1% of the isolated cultures were alkalotolerant and grown at pH10. 

Saiga Diet (Saiga Tatarica L.) on Different Types of Pastures Caspian Lowlands

Studied the power of saiga in the Caspian lowland in June 2011. Mikrogistologichesky cuticularscatological analysis of undigested food residues revealed a specific and quantitative differences in the diet of animals on two types of pasture. Analysis of feeds and their digestibility revealed optimal habitat for the saiga.

Stress signals of water scavenger beetles Berosus frontifoveatus Kuwert, 1888 and Berosus spinosus Steven, 1808 (Coleoptera: Hydrophilidae)

The study of acoustic signals from various representatives of insects, and in particular coleopterans, has a long history. In the Russian-language literature, systematic, faunistic and ecological studies on aquatic beetles, including those on the family Hydrophilidae, are widely known; however, studies on the bioacoustics of the coleopteran group are quite rare. The aim of our study was to study stress signals of two species of Hydrophilidae – Berosus frontifoveatus Kuwert, 1888 and Berosus spinosus Steven, 1808.

The use of games as a method in teaching the basics of chemical toxicology as part of the ecological education of schoolchildren

In today’s modern technogenic world, forming an ecological consciousness, perception and thinking among schoolchildren is a vital task. Knowledge of chemical toxicology is essential for students of all ages to help protect and maintain a healthy environment. Given that toxicology is characterized by an increased level of complexity, the purpose of this work was to develop and apply gaming methods in teaching the basics of chemical toxicology as part of environmental education of schoolchildren.

Obtaining viable Azospirillum brasilense SR80 cells encapsulated in alginate hydrogel

Significant researches aimed at the greening of agro-industrial production are focused on obtaining immobilized bacterial preparations with preserved proliferative function and metabolic activity. Herein, we investigated the possibility of bacteria of the genus Azospirillum to be immobilized in Ca-alginate beads. A. brasilense SR80 cells, encapsulated in an alginate hydrogel, were obtained using the “soft” immobilization method based on physical binding.

Phylogeography of the scorpion M. сaucasicus (Nordmann 1840) within the range of the genus Mesobuthus (Vachon 1950) (Scorpiones: Buthidae)

Currently, new habitats of scorpions of the genus Mesobuthus have been established on the territory of the republics of Armenia and Dagestan. The aim of the study was to determine the phylogenetic position of scorpions inhabiting the territories of the Republic of Armenia and the Republic of Dagestan. This study contributes to the development of ideas about the zoogeographic distribution of the scorpion fauna in the Palaearctic.

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