(Vestsi Akademii Navuk Belarusi)
SERIES OF BIOLOGICAL SCIENCES
Published by The Belaruskaya Navuka Publishing House, Minsk, Republic of Belarus
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Proceedings of the Academy of Sciences of Belarus (Vestsi Akademii Navuk Belarusi) SERIES OF BIOLOGICAL SCIENCES Published by The Belaruskaya Navuka Publishing House, Minsk, Republic of Belarus |
Summary: Classification is based on utilization of growth conditions and the specific structure of plant communities. According to this classification coniferous forests are divided into two classes by water provision and into 12 groups of plantations byproductivity, and out of them 22 associations were selected by the specific structure of surfase soil cover. The basic syntaxonomic unit is a group of plantations uniting phytocenoses within a class of forests with woody tiers of egual productivity (estimated productivity).
Rupasova Zh.A., Morozov O.V., Ignatenko V.A., Rusalenko V.G., Rudakovskaya R.N., Prilishch N.P., Matyushevskaya E.N.
The influence of Vaccinium Vitis-idaea L. polyploidy on accumulation of biologically active compounds in leaves. pp. 12--18
Summary: Main tendencies in the level accumulation change of some components of the chemical composition of Vaccinium Vitis-idaea L. different age leaves with different number of chromosomes are shown.
Pavlovsky N.B.
Rooting of Koralle cuttings and their development on different substrates. pp. 18--25
Summary: Rooting of Koralle cuttings was tested in the following substrates: peat, sand, perlit, peal and sand (1:1), peat and perlit (1:1), peat mulched by the 2-cm layer of sand, sand mulched by the 2-cm layer of peat. The highest percent of rooting of cutting is observed in sand. Water and air conditions and not the store of nutrient substances play a determining role in rooting of cutting. Maximum biometric values and phytomass were obtained in plants grown on the mixture of peat and sand. Productivity values are determined both by substrate composition and its water and air provision.
Morozov O.V.
Disease of small leaves in Vaccinium Vitis-idaea L. pp. 26--30
Summary: Disease of small leaves is the most economically harmful among the known cowberries diseases. Injury results in complete and irreversible losses of harvest, plantations for future applications and breeding trials. There is risk for other cultivated species of Vacciniaceae family. The absence od radical therapeutic measures of control defines a particular role of preventive measures. The most important of them is control of carrier of a disease. One of the ways of plant protection is developing of resistant varieties.
Sarnatsky V.V., Kachanovsky I.M., Rogovoi A.P.
Variability of soil and ecological conditions of forming different-type forests in finite ridges of the central part of Belarus. pp. 30--34
Summary: Variability of the underground water level and soil temperatures in different forest types was revealed. The classification of temperature conditions of soil layers under different moisture conditions is given.
Abysheva L.N., Volynets A.P., Pshenichnaya L.A.
Phenocarboxylic acids in alfalfa plant florets under its different boron supply. pp. 34--38
Summary: Treatment of boron-deficient alfalfa plants with boron under moisture deficit conditions decreases the content of free phenolcarboxylic acids and increases accumulation of combined ones in florets normalizing their generative development.
Sergeichik S.A., Sergeichik A.A.
Estimation of tissue peroxidase acavity of Pinus silvestris L. and Picea abies (L.) Karst. pp. 38--41
Summary: Cronic air pollution by toxic compounds of technogenic emissions leads to activation of tissue peroxidase activity of Pinus sylvestris L. and Picea abies (L.) Karst.
Vlasova N.N., Laman N.A.
The influence of pyridoxin treatment of seeds on nitrate content in salad and radish plants. pp. 42--44
Summary: Reduction in nitrate content in salad and radish plants was revealed as a result of presowing soaking of seeds in 0.3 % solution of pyridoxin.
Gigolashvili T.S.
The influence of in vitro conditions on structural organization of potato water-retaining system. pp. 44--49
Summary: There are some limiting factors for growth and differentiation of plant during its cultivation in vitro. They are high atmosphere humidity, low irradiation, closed space with restricted gas exchange to the environment, etc. Our study concerned adaptive modification of Solanum tuberosum during its cultivation in vitro comparable to the analogues in greenhouse and field conditions. It was revealed that:
Litvinovskaya R.P., Drach S.V., Baranovsky A.V., Streltsova V.A., Khripach V.A.
The influence of isoxazolinylsteroids on the initial growth of plants. pp. 49--53
Summary: It has been found that the 17- and 20-isoxazolinylsteroids possess the growth modulating activity.
Matusevich V.V., Semenova Z.A., Khrisanova I.F.
Potato propagation by cutting on ion exchanger nutrient substrates of different composition. pp. 53--58
Summary: The new kinds of ion exchange nutrient substrates based on the Murashige--Scoog's, Knudson's and Ernst's solutions have been developed. These substrates were used for taking root of potatoes cuttings of sorts Prigozij, Lasunok and Sante under in vivo conditions. Simultaneously the standard cuttings were grown on the ordinary agar media under sterile conditions. After 1 month period the potatoes plants (standard and experimental) were transferred into a greenhous with peat soil and grown there for 3 months. It was shown that tuber productivity of experimental plants was 2.5--6 times higher in relation to standard plants irrespective of the chemical composition of the ion exchange substrate.
Chiger M.B., Zabrodskaya S.V., Oparin D.A., Strumilo S.A.
Inhibition of pyruvate denydrogenase complex containing endogenous thiamine diphosphate by anticoenzyme thiamine derivatives. pp. 58--60
Summary: We have studied the possibility of inhibition by anticoenzyme thiamine derivatives of the highly purified pyruvate dehydrogenase complex from auroch heart (PDC) semisaturated with endogenous thiamine diphosphate (TDP). It has been found that oxylhiamine diphosphate, tetrahydrothiamine diphosphate and tetrahydrooxythiamine diphosphate strongly inhibit not only the PDC apoenzyme moiety competitively with respect to TDP, but also the PDC holoenzyme moiety. The [I]50 values for the holoenzyme amount to 0.006, 0.042 and 0.251 mM for oxythiamine diphosphate, tetrahydrothiamine diphosphate and tetrahydrooxythiamine diphosphate, respectively.
Khotyljova L.V., Polonetskaya L.M., Korpusenko L.I., Kavtsevich V.N.
Technique of fibre flax tissue culture in vitro. pp. 60--62
Summary: The description of the technigue for producing regenerant-plants of 8 variety samples of fiber flax is given.
Yermishin A.P., Voronkova E.V.
Production of potato dihaploids in anther culture: potato grafting on tomato. pp. 63--66
Summary: Grafting of potato plants on different tomato stocks was shown to result in shifting sex ratio to feminity, increasing morphogenic pollen grain concentration, callus formation frequency in anther culture being higher than in intact plants.
Volodin V.G., Lisovskaya Z.I., Ganets N.V.
Characteristic properties of segregation of hybrids from crossing marker lines and genetically instable forms of barley. pp. 66--71
Summary: Application of instable barley genotypes in hybridization with marker lines often results in formation of heterogenous progeny F1, segregation of additional plant phenoclasses in F2, in shift of the size of two plant groups under monohybrid crossing.
Girilovich I.S., Lemeza N.A.
Mildew fungi of tress and shrubs growing in the area of Minsk. pp. 71--76
Summary: There were revealed 29 species of fungi from 7 genera of Erysiphales parasitizing on 61 species of woody and shrub plants from 34 genera of 15 families of flowering plants. 7 new species of parasitic plants in Belarus are given.
Buga S.F., Radyna A.A., Boyarchuk V.E.
Monitoring of Fusarium nivale (Fr) Ges. population sensitivity to fundazol. pp. 76--79
Summary: Monitoring of the sensitive populations of the fungus Fusarium nivale to fundazol showed a high resistance of Logoisk, Priluks and Minsk populations.
Kalitukho L.N., Kabashnikova L.F., Chaika M.T.
Interrelationship between growth processes and photosynthetic apparatus formation at early ontogenesis stages of triticale seedlings. pp. 80--85
Summary: Photosynthetic pigments accumulation and growth parameters changes have been studied in etiolated, postetiolated and green winter triticale seedlings. It was shown that the period of primary leaf appearance from coleoptile indicated the maximum differences between investigated varieties.
Kravehenko V.A., Gaponenko V.I., Matsko V.P., Grushevskaya O.M., Bondar Yu.I., Yevseevich K.M.
Ecologophysiological characteristic of some species of natural vegetation in Polessky State Radiation Ecological reserve. pp. 85--87
Summary: In connection with Chernobyl's accident the state of the componets of natural assocition of Polesky State Radioecological Reserve was investigated in 1992--94. Positive correlation between the content of protein in leaves of Agropyron repens L., needles of Pinus silvestris L. and specific activity of phytomass was established. Positive correlation between specific activity of overground phytomass and quantity of nucleic acids (DNA + RNA) in leaves Dactylis glomerata was found.
Shurkhai S.F., Vorobei A.V., Bolodon V.N.
Lipid peroxidation under natural aging of lupine seeds (Lupinus luteus). pp. 88--91
Summary: The results obtained indicate that the reason for the aging of lupine seeds under conservation is likely to be due to peroxidation of lipids. It is shown that products of lipid peroxidation induce damages of germ proteins, lipids and DNA.
Lobko P.I.
Correlations of chromaffin organs in mother -- fetus system. pp. 92--95
Summary: Experimentally induced chromaffin tissue deficiency in the organism of the pregnant female (adrenal demedullation) results in compensatory hypertrophy and hyperfunction of fetus chromaffin organs.
Arinchin N.I., Petrov S.V., Senko V.V.
Cause -- consequence relations by formation of self-regulation types of blood circulation. pp. 95--99
Summary: Qualitative studies of various types of blood circulation hemodynamics have been performed with the use of simple mathematical models. The stroke volume values at rest as well as their changes during physical exertion have been demonstrated to depend largely on the total strained blood volume.
Zimatkina T.I., Yurkshtovich T.L., Kaputsky F.N., Ostrovsky Yu.M. †
Biological activity of polymere preparations of oxythiamine and methotrexate. pp. 99--103
Summary: Experiments on albino mice were used to study antitumor and antivitamin activity of a number of novel substances concurrently immobilized on methotrexate and hydroxythiamine monocarboxycellulose. A most active compound with the laboratory code of AT-10-12 was detected. Being efficient prolonged forms of the above antagonists of folic acid and vitamin B1, these substances are of interest as potential antitumor remedies as well as valuable tools for experimental vitaminological studies.
Anisimova E.I., Sidorovich V.E., Shimalov V.T.
Helminthofauna of otter (Lutra lutra) in Belarus. pp. 103--106
Summary: The study of helminthofauna in population of Lutra lutra in Belarus are presented. Helminth diversity and infestation in otters are analysed.
Shlyakhtenok A.S.
Knowledge of stinging hymenoptera (Hymenoptera, Aculeata) in Belarus. Pompilidae family. pp. 106--112
Summary: On the basis of long-term investigations (1984--1993) a synopsis of 51 species of pompilidae detected in the area of Belarus was compiled. Modern name, occurence data, biotopic belonging and terms of flying are presented.
Summary: Numerous data on peculiarities of energy metabolism in brain tissue have been analysed and summarised. A close relationship between this type of metabolism and extent of functional activity of nervous tissue has been noted.
Summary: Kinetic curves and dependences of erythrocyte hemolysis on the concentration of Tryton X-100 at different temperatures are studied. The formation of three types of pores close in size and in activation energy of lysis is shown. It is supposed that variety of pores results from the planar heterogenity of lipids in erythrocyte membrane. It is found that the fast component of hemolysis arising at high concentration of Tryton-100 is radically different in the temperature dependence from similar components induced by ionic detergents.
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