Известия Нац. академии наук Беларуси. Сер. биол. наук, 2001, No.3
/ Издания академии / Научные журналы
Известия Нац. академии наук Беларуси. Сер. биол. наук, 2001, No.3
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Известия Национальной академии наук Беларуси
СЕРИЯ БИОЛОГИЧЕСКИХ НАУКИздатель: Издательский дом Беларуская навука, Минск, Республика Беларусь |
Номер 3, 2001
СОДЕРЖАНИЕ
СТАТЬИ
Rupasova Zh. A., Rudakovskaya R. N.,. Vasilevskaya T. I., Ignatenko V. A., Varavina N. P., Tychina I. N.
Seasonal accumulations of chloroplastic pigments, organic acids, and terpenoids in the plant Potentilla recta L. upon introduction in Belarus. pp. 5--9.
Summary: Ranges of seasonal changes in the content of chlorophylls, carotenoids, free organic, ascorbic and triterpenic acids, neutral triterpenoids and fat oils in some organs and overground phytomass of Potentilla recta L. in conditions of Belarus have been determined for the first time for pharmacological purposes.
Garaninova M. V., Kutas E. N.
Effects of biologically active substances on the growth of rhododendrons in vitro. pp. 10--13.
Summary: We have examined effects of different concentrations of epibrassinolide, emistim and cvartasin on morphometric indices of four rhododendron species in vitro. It was found that the growth of rhododendron sterile culture depends on the selectivity of action and concentration of the compounds and plant species.
Morozov O. V.
Role of geographical factor in introduction of common red whortleberry (V.vitis-idaea L.) in conditions of Belarus Polesie region. pp. 14--17.
Summary: Introduction of red whortleberry of different geographical origin in Belarus' Polesie region showed that the norm of genotypic reaction of populations from more severe climates (Western Siberia, Far East) is underrealised.
Zankevich N. P.
Dynamics of the accumulation of flavonoid glycosides released by healthy and infected plants of rye. pp. 18--20.
Summary: The dynamics of accumulation of flavonoid glycosides released by healthy and brown rust-infected plants of rye was first studied. Changes in the amount of exogenous flavonoid glycosides were demonstrated in both cases. Basic similarity between the dynamics of secretion of the glycosides and their endogenous accumulation in tissues of infected rye was established; however, the surface accumulation was less pronounced and terminated earlier.
Poljanskaja S. N.
Antifungal activity of endogenous steroid glycosides. pp. 21--23.
Summary: Antifungal activity of endogenous steroid glycosides on the pathogen Septoria sp. of cereals and their ability to raise the resistance of spring wheat to this infection were studied. Application of steroid glycosides in protection of plants was found to be promising.
Shustova S. Yu.
Dynamics of natural regeneration in oak forests and related phytocoenoses. pp. 24--26.
Summary: The results of research of natural regeneration under shelter-wood of oak forests and derived phytocoenoses are presented. The quantity of regrowth varies from year to year depending upon climatic and phytocoenotic factors and biological characteristics of species.
Daineko N. M.
Productivity of cenopopulations of intensively used permanent grassland agroecosystems. pp. 27--30.
Summary: On the studied types of soils the most productive weve cenopopulations of Poa pratensis, Dactylis glonurata, Trifolium repens. As the stable components of the pasturable agroecosystems these species may be included to the graze composition for these soils.
Kasinskaya S. I., Mikhailova M. E., Mosse I. B., Tikhanovich N. I.
Combined effect of ionizing radiation and melanin on the genetic structure of experimental populations of Drosophila. pp. 31--34.
Summary: Dynamics of the genetic structure in experimental populations of Drosophila melanogaster exposed to the influence of ionizing radiation and melanin was investigated by the frequencies of Adh locus genotypes. Adh-FF genotype was revealed to be the most adapted to the ionizing radiation impact. Melanin administration to the irradiated populations at the beginning of monitoring favoured maintaining the frequency of Adh locus genotypes at the control level. An increase in the frequency of heterozygotes and Adh S-allele was observed after the 10th generation.
Afonin V. Yu.
Dynamics of cell death of the bone marrow in amphibians inhabiting radiocontaminated territories. pp. 35--37.
Summary: It was revealed that there were seasonal differences in cell death of Anuran bone marrow. The level and forms of apoptotic cells depended on 137Cs incorporation.
Kabachevskaya E. M., Lyakhnovich G. V., Volotovsky I. D.
Effects of red and far red light on the phospholipase D activity in oat seedlings. pp. 38--39.
Summary: The effect of red light and far red light on the phospholipase D activity in oat seedlings was studied. It was shown that enzyme activity in etiolated seedlings was decreased with red light. The reversibility of red and far-red light photomodulation of phospholipase D activity was found.
Kozlova N. M., Luk'yanenko L. M., Antonovich A. N., Smolentseva L. V., Slobozhanina E. I.
Structural modification of erythrocyte membranes under the influence of t-butyl hydroperoxide. pp. 40--43.
Summary: The effect of t-butyl hydroperoxide on the structural and functional state of human erythrocyte membrane has been studied. It is shown that induced t-butyl hydroperoxide oxidative stress in erythrocytes causes a change in the physical and chemical state both of proteins and lipids in the erythrocyte membrane. The sequence of events may be presented as follows: an oxidation of membrane proteins and lipids causes a change of rigidity of the lipid bilayer and results in a decrease in the NADH-methemoglobin reductase activity and structural modification of integral protein band 3.
Volotovskaya A. V., Kozlova N. M., Antonovich A. N., Slobozhanina E. I., Ulashchik V. S.
Effect of low-intensive He-Ne-laser irradiation on the structure oferythrocyte and lymphocyte membranes in blood of children. pp. 44--47.
Summary: The influence of He--Ne-laser irradiation (l = 630 nm) at a dose of 24 J/cm2 at t = 18 ± 2°C on the physico-chemical state of proteins and lipids in lymphocyte and erythrocyte membranes of 8--16 year-old children was investigated in vitro. It was shown that the He--Ne-laser exposure significantly increased the structural stability of erythrocyte membranes and induced minor changes in lymphocyte membranes, which may underlie positive medical effects of laser irradiation of blood.
Kananovich S. Zh.
Intramolecular dynamics of the structure of bacterial alkaline phosphatase during modification of the active centre. pp. 48--51.
Summary: With the help of the tryptophan phosphorescence method at room temperature it was shown that the transition of native alkaline phosphatase from E. coli in to apoenzyme results in a dramatic increase in the large-scale intramolecular dynamics. These changes are associated with a complete loss of the enzyme activity. Reconstruction of an enzyme molecule by including Zn2+ and Mg2 in its structure or substitution of these cations for Cd2+ restores (completely or partially) the structural-dynamic state and enzyme activity of alkaline phosphatase E. coli.
Shishko Zh. F., Mikhailova R. V., Yeremin A. N., Yasenko M. I., Lobanok A. G., Metelitsa D. I.
Characterization of extracellular glucose oxidase Penicillium adametzii. pp. 52--56.
Summary: Extracellular glucose oxidase (GO) of the fungus Penicillium adametzii LF F-2044 with molecular weight of its subunit 71 kDa and the absorption maxima at 277.5, 372.0--383.7 and 455.1--457.0 nm was purified by ultrafiltration. The enzyme contains 22.8--25.7% of a-helics, 15.0--15.9% antiparallel and 5.5--5.6% collateral b-frames, as well as 18.2--19.9% of b-flexures. The optimum of catalytic activity of GO was at pH 3-6 and temperatures up to 70°C. The oxidation of D-glucose by GO is characterized by an activation energy 5.92 kcal/mol and kinetic parameters KM = 11.1--13.8 mM, kcat = (1.52--2.05) • 105 c-1, kcat/KM = (1.10--1.85) • 107 M-1 • c-1. Specific activity of GO was (0.82--1.03) • 105 IU/mg protein.
Safronova G. V., Sukhovitskaya L. A.
Efficiency of inoculation of legume plants by artificial associations of rhizosphere bacteria. pp. 57--61.
Summary: It is shown that inoculation of clover and pea with artifical diazotroph and diazotroph phosphate- mobilizing associations increases the efficiency of legume-rhizobial symbiosis.
Timokhina N. I., Poplyko M. G., Guseva G. F., Sinkevich A. G.
Structural and functional state of the lungs in rats exposed to prolonged external and internal g-radiation. pp. 62--65.
Summary: The dynamics of the morphological and functional state of the lungs in experimental rats after separate and combined repeated external gamma-irradiation and incorporation of 137Cs was analyzed. It was shown that the external irradiation at a dose of 1.0 Gy and administration of 137Cs in the amount of 160 and 320 kBq, as well as the combined effect of the two exposures resulted in some morphological changes in the lungs and disturbances in local defense functions of the organ.
Mikhalovsky I. S., Zorin V. P.
Kinetics of redistribution of porphyrin sensitizers between liposomes and cell membranes. pp. 66--70.
Summary: The study deals with the redistribution of porphyrin sensitizers (chlorin e6, trimethyl ester of chlorin e6, Zn-phtalocyanin) between model and cellular membranes. The kinetics of the porphyrin redistribution is shown to have two phases. The fast phase is the intermembrane transfer, when the porphyrin molecules are located in an other monolayer of lipid membrane while the second phase is related to porphyrin transmembrane transfer. The results obtained are of special significance for understanding the pharmacokinetic behaviour of sensitizers introduced with in lipid vesicles.
Mironova G. P.
Role of medullary raphe nuclei in mediation of vestibular influences on serotoninergic structures of the small intestine. pp. 71--72.
Summary: In experiments on rabbits it was shown that electrical stimulation of the lateral vestibular nucleus (LVN) led to a short-term significant increase in the serotonin content in mesenteric venous blood. After destruction of the nucleus raphe magnus, obscurus and pallidus electrical stimulation of the LVN did not result in an increase in the serotonin level in blood. It is suggested that the medullary raphe nuclei are involved in the mechanism of vestibuloactivating influences on the small intestinal serotoninergic structures.
Davydovsky A. G.
Effect of interleukin-1b on lipid peroxidation and components of antioxidant system of the liver and spleen in rats during induction of cytochrome P450-dependent monooxygenases. pp. 73--75.
Summary: A decrease in dienic conjugate production, an increase in TBA-reactive products and a significant increase in total sulfhydryl groups in the rat liver and spleen were shown 24 h after intraperitoneal injection of recombinant rat interleukin-1b (IL-1b) against the background of cytochrome P450-dependent monooxygenase induction by phenobarbital. IL-1b is probably involved in potentiation of toxic effects of xenobiotics in the liver.
Rudenok V. V.
Immunohistochemical study of somatostatin expression in sympathetic ganglionic neurons. pp. 76--77.
Summary: By the method of indirect immunocytochemistry somatostatin positive neurons in human cervico-thoracic sympathetic ganglia were revealed, which supports the thesis about the neurotransmitter heterogeneity of paravertebral ganglia.
Sokolnik V. P., Feshchenko S. P.
Biochemical heterogeneity and tissue-specific differences of cartilage collagen proteins in achondrogenesis and hypochondrogenesis. pp. 78--81.
Summary: Collagenous proteins were isolated from a hyaline cartilage of stillborn fetuses with type I B (Fraccaro-type) and type II (Langer-Saldino-type) achondrogenesis and hypochondrogenesis (2 cases). Collagen chains as well as their CNBr-derived peptides were electrophoretically separated. In Fraccaro achondrogenesis both collagen I and II were present, while collagen II was absent in Langer-Saldino achondrogenesis. Collagen II found in hypochondrogenesis was substantially overmodified. In hypochondrogenesis the pattern of collagenous proteins varied depending on the tissue analyzed (rib, articular cartilage, vertebral cartilage). The data provide clear evidence for biochemical heterogeneity of the diseases.
Sidorovich V. E., Pikulik M. M., Solovei I. A., Lauzhel G. O., Ivanovsky V. V.
Landscape dependence of the species diversity of vertebrate communities in Poozerie region of Belarus. pp. 82--89.
Summary: Specificity of the species composition and abundance in vertebrate communities in the Poozerre area depending on the landscape structure and habitat quality was revealed. Variations of habitat carrying capacity and landscape heterogeneity in relation to the history of the last glaciation and particularly in connection with composition of the surface ground deposition were studied,
Lewandowski K., Moroz M. D.
Mayflies, species (Insecta: Ephemeroptera), new for the fauna of Belarus. pp. 90--91.
Summary: Investigations of the mayflies' fauna in Belarus have been carried out. Six species which are new for the Belarussian fauna have been revealed. These are Ametropus fragilis Albarda, 1878; Oligoneuriella pallida (Hagen, 1855); Isonychia ignota (Walker, 1853); Ephoron virgo (Olivier, 1791); Brachycercus harrisella Curtis, 1834; H Potamanthus luteus (Linnaeus, 1767). These species are rather rear for European fauna, too.
Kulak A. V.
New and little-known species of geometrid moths of tribe Eupitheciini Pierce, 1914 (Lepidoptera, Geometridae) in Belarus. pp. 92--95.
Summary: The article reports 9 new for the Belarusian fauna geometrid (Lepidoptera, Geometridae) species: Gymnoscelis rufifasciata Hw., Chloroclystis v-ata Hw., Eupithecia pygmeata Hb., E. tenuiata Hb., E. egenaria H.-S., E. ochridata Pinker, E. extraversaria H.-S., E. cauchiata Dup. and E. valerianata Hb. Data on the duration of flight and onset of larval and wintering phases, host plants of caterpillars, biotopical preference and character of the distribution in Belarus and in the contiguous territories for each species are presented. Additional data on abundance of some species (Eupithecia tripunctaria H.-S.. E. nimoinellata Hb.. E. intricata Zett. and E. millefoliata Rossler) are given.
Chumakov L. S.
Effect of industrial pollution on staphylinid beetles (Coleoptera, Staphylinidae) in perennial grass fields. pp. 96--98.
Summary: The Philonthus species composition increases by a third, the species diversity decreases, the biomass of I individual changes, the seasonal population dynamics of some species breaks under conditions of pollution.
Dubkov S. G., Veremeyev V. N.
Species variety, distribution, and phoresic of dung beetles Geotrupes (Coleoptera, Scarabaeidae) in forest ecosystems of south-east Belarus. pp. 99--101.
Summary: A study of the species variety and quantity of beetles Geotrupes (Coleoptera, Scarabaeidae) and guest mites in 28 forest biotopes of south-east Belarus has shown that the beetles represented by two species and the dominant is G. stercorosus Scr. (99.4% of collections). Among 7 species of collected mites the dominant is Macrocheles glaber Mull (82.4% of collections). Most often both the beetles and phoresic mites occur in oakeries, less frequently in birch and pine forests.
Dobrolubov A. I., Shumak S. K.
Traveling waves of deformation as a transport mechanism in biological systems. pp. 102--104.
Summary: A transport force wave mechanism which is formed by the traveling deformation waves, running along a flexible string (belt) fixed at the ends, is analyzed in terms of theoretical mechanics and biomechanics. It is shown that this mechanism is capable of transporting a solid body, which is in contact with the string, by the discrete-wave method. The mechanism is simple in design and energy saving. The values of body displacements and driving force of the mechanism are defined. The mechanism is a biological way of transport in cases when increased pushing or pulling forces are needed, for example, for moving large-size prey in the snake oesophagus and in the biomechanism of labor.
ОБЗОРЫ
Yermishin A. P.
Incompatibility in interspecific and intraspecific hybridization of diploid potato and ways of overcoming it. pp. 105--118.
Summary: The available information is analysed about mechanisms of prezygotic incompatibility during interspecific and intraspecific hybridisation of diploid potato and approaches are proposed to overcome it. The types, evolution, models, modem molecular and biochemical data on the nature of gametophytic incompatibility are discussed. The model was further developed, based on the common mechanism of inter- and intraspecific incompatibility. This model makes it possible to explain different cases of intra-, interspecific and unilateral incompatibility, the mechanisms of action of methods used to overcome it. New approaches for circumventing interspecific incompatibility barriers are discussed. These are diploid bridge-lines, produced on the basis of rare sexual interspecific hybrids or dihaploids of somatic hybrids, and also bridge-lines lacking the stylar S-RNases.
КРАТКИЕ СООБЩЕНИЯ
Melnichenko N. G.
Oxidation of thiamine under the influence of active oxygen forms and hydroperoxides. pp. 119--121.
Summary: Oxidation of thiamine in vitro in phosphate buffer (pH 7.4) to thiochrome and thiamine disulfide is stimulated in the presence of active (reduced) forms of oxygen, initiated by Fe2+, and hydrogen hydroperoxides, oleic asid, and tretbutyl.
АННОТАЦИИ ДЕПОНИРОВАННЫХ СТАТЕЙ
Poplavskaya R. S., Yakimovich M. A., Yatsko L. I., Spitsin A. A.
Effect of gibberellic acid on the accumulation of flavonoids in leaves of two-rowed and sox-rowed barley and events at the apical cone. p. 122
Plyuta M. V.
The structure of spawning populations, spawning and fertility of trout in water reservoirs in Belarus. p. 122
/ Издания академии / Научные журналы / К началу страницы
Разработана и поддерживается Николаем Н. Костюковичем. Последнее обновление: 9 ноября 2006 г.
Создана при участии Игнатия И. Корсака
Копирайт © 2001-2006 Национальная академия наук Беларуси
Копирайт © 2001 Издательство "Беларуская навука"
