Биология

5 species of millipedes, 12 species of geophilomorph centipedes, 3 species of scolopendromorpha centipedes, 11 species of lithobiids and 1 species of scutigeromorph centipedes are listed for the territory of the Lower Volga region (in the limits of Saratov, Volgograd, Orenburg and Astrakhan regions and Kalmyk Republic) as a result of processing of collection materials kept in ZM MSU, ZIN RAS, collection of the Department of Biology and Chemistry of the UlSPU and of the Department of Animal Morphology and Ecology, Saratov State University, and exploring of literary sourc

To protect bread wheat from rust diseases, introgressive resistance genes located in alien translocations are commonly used. In the literature there are no data on the effect of Lr-genes on the structures of the embryo grain. For the solution of these problems, developed lines Dobrynya, resistant to leaf rust. In work results of research of the anatomic-morphological structure of the grains wheat Lr-genes of resistance to leaf rust.

Ants are essential component of ecosystems. They participate in soil formation, regulate the number of insects and spread the seeds of plants. The species of the genus Formica are most noticeable in the forests of the middle zone of Russia. The number and diversity of the prey of ants decreases in the areas experiencing a recreational load. To study the feeding characteristics of ants food objects brought in the anthill were seized. Invertebrates from 12 taxonomic groups were recorded in the prey.

Was studied the influence of film coatings, created on the basis of exopolysaccharides (EPS) of lactic acid bacteria Lactococcus lactis B-1662 and Streptococcus thermophilus, on the healing of burn wounds in female rats. It has been established that film coatings contribute, albeit to varying degrees, to the healing of burns of grade IIIa in rats. The application of film coatings to the burn site was carried out immediately after the burn was reproduced and then daily for 28 days.

We present the data on six spider species of 6 families has collected in the forest-steppe zone of Samara-Volga region. This paper was compiled from field gathering conducted in the Samara region during 3 years, and starting from 2004.

In article results of selection work on creation of new sorts of Chrysanthemum coreanum in Ufa botanical garden are explained, descriptions of 10 local new sorts are also provided. Their biometric parameters, decorative indexes and terms of blossoming are specified. The Chrysanthemum genus belong to Asteraceae family. Ch. coreanum – hybrid origin, a perennial plant with reinforced, more or less branched rhizome.

The influence of coatings on the basis of Ag and Zn metal nanoparticles in a silica matrix in combination with ultraviolet (365 nm) radiation on Staphylococcus aureus 209 P bacteria was studied. It was shown that the investigated coatings without access to light inhibit the growth of microorganisms by 45% after 3 hours of incubation and 55–70% after 5 hours of incubation. Enhancement of antibacterial properties of nanocoatings was achieved by exposure to UV (365 nm) radiation.

Показано изменение соотношения гликанов различной полимерности и свободных аминокислот в биомассе высших водных растений - рдеста пронзеннолистного и тростника обыкновенного, собранных на различающихся по степени загрязненности воды соединениями азота и углеводородами нефти участках акватории Волги в районе г. Саратова. Проведена идентификация и определение содержания свободных аминокислот в биомассе растений, выявлены аминокислоты, наиболее отчетливо реагирующие на загрязнение воды.

В настоящей работе показано, что в качестве моделей биосистем молекулярного и супрамолекулярного уровня целесообразно использовать гидрозоли наночастиц ультрадисперсного алмаза, в частности при изучении воздействия различных факторов на водное окружение биологических структур. Изучено влияние индолил-3-уксусной кислоты на состояние приповерхностной воды методом флуоресцентного зондирования. Экспериментально установлено, что определенные концентрации индолил-3-уксусной кислоты вызывают значимое снижение подвижности воды вблизи поверхности наночастиц.

Проанализированы основные направления сопряженного изучения характеристик местообитаний и особенностей сообществ степных птиц. Отражена видовая структура сообществ птиц в различных вариантах степей. Показано, что для выявления причин изменения плотности популяций и структурных особенностей сообществ необходима количественная характеристика местообитаний видов. Подчеркнута важность флористических исследований, показывающих, что птицы могут реагировать на присутствие определенного вида растений сильнее, чем на структурнью особенности местообитаний.