Biology Bulletin Volume 36 Issue 6

Journal Article

Principles of speciation of the plague causative agent Versinia pestis: Gradualism or saltation?

Suntsov, V.; Suntsova, N.

2009 Biology Bulletin

The saltation origin of the causative agent of the plague Yersinia pestis from the pseudotuberculosis microbe Y. pseudotuberculosis O:1b has been proclaimed in recent investigations on molecular genetics. The speciation process in this case is proposed to be connected with horizontal transfer of...

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Journal Article

Loosening of condensed chromatin in human blood lymphocytes exposed to irradiation with a low-energy He-Ne laser

Manteifel, V.; Karu, T.

2009 Biology Bulletin

doi:10.1134/S1062359009060028

It was shown that, 1 h after irradiation of human blood lymphocytes with a He-Ne laser at 56 J/m2 (5.6 W/m2, 10 sec), the relative optical density of condensed chromatin masses observed in ultrathin sections was decreased (p < 0.01); i.e., the condensed chromatin became less compact. Such...

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Journal Article

Oxidative modification of proteins and blood antioxidant activity of ground squirrels during induced awakening from hibernation

Astaeva, M.; Klichkhanov, N.

2009 Biology Bulletin

doi:10.1134/S106235900906003X

The intensity of oxidative modification of plasma proteins and activity of the antioxidative system of the blood of the ground squirrels during awakening from hibernation is studied. During waking of animals, processes of oxidative modification of proteins in the blood plasma intensify. While the...

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Journal Article

Biological activity of metabolites of the herb Kalanchoe diagremontania (Hamet de la Bathie) Jacobs et Perr

Anisimov, M.; Gerasimenko, N.; Chaikina, E.; Serebryakov, Yu.

2009 Biology Bulletin

doi:10.1134/S1062359009060041

In this study we investigated the hemolytic, antimicrobial, and phytoregulatory activity of various classes of lipids (triacylglycerols, free fatty acids (FFA), the glyceroglycolipids monogalactosyl diacylglycerol (MGDG), sulfoquinovosyl diacylglycerol (SQDG)), sterols, all of them were obtained...

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Journal Article

Setaria Viridis tolerance of high zinc concentrations

Kaznina, N.; Titov, A.; Laidinen, G.; Talanov, A.

2009 Biology Bulletin

doi:10.1134/S1062359009060053

The effect of high zinc concentrations on the growth and photosynthetic apparatus of Setaria viridis (L.) Beauv. was investigated under laboratory conditions and a vegetation experiment. The experiments showed that zinc concentrations of 10−6 to 10−3 M did not influence seed germination....

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Journal Article

Ultrastructure and phylogeny of colpodellids (Colpodellida, Alveolata)

Mylnikov, A.

2009 Biology Bulletin

doi:10.1134/S1062359009060065

The structure of cells of the predatory flagellates Colpodella pseudoedax and C. unguis was studied. The cell was found to contain two heterodynamic flagella, three-membrane pellicle, micropores, subpellicular microtubules, microtubular open conoid, roptries, micronemes, extrusive organelles...

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Journal Article

Individual growth of Lymnaea stagnalis (Lymnaeidae, Gastropoda): II. Late postlarval ontogeny

Zotin, A.

2009 Biology Bulletin

doi:10.1134/S1062359009060077

Our investigation on the growth of 14 individuals of the great pond snail Lymnaea stagnalis was performed in an aquatic culture at 18°C beginning from the 10th week after hatching until death. It has been demonstrated that the increase in the mollusk mass follows an S-like curve during the whole...

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Journal Article

How many neuroblasts build mushroom bodies in Lucilia caesar L. and Musca domestica L. (Diptera, Brachycera Cyclorrhapha)?

Panov, A.

2009 Biology Bulletin

doi:10.1134/S1062359009060089

The green-bottle fly Lucilia caesar and the housefly Musca domestica differ greatly in the number of neuroblasts producing mushroom bodies. Four neuroblasts were found in each mushroom body of Lucilia pupae, and its calyx has a quadruple structure. In the housefly, the number of mushroom body...

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Journal Article

The effect of cocaine on kinetics of α1-adrenergic contractile response in different portions of the rat vas deferens

Berdysheva, L.; Boiko, O.; Manukhin, B.

2009 Biology Bulletin

doi:10.1134/S1062359009060090

The effect of cocaine (10 µM) on the kinetics of contractile response to noradrenaline (NA) was studied in the rat epididymal and prostatic vas deferens. Cocaine caused an acute increase in vas deferens adrenergic sensitivity primarily due to blockage of NA neuronal capture. The presynaptic...

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Journal Article

Spatial structure of epiphytic yeast communities on fruits of Sorbus aucuparia L.

Maksimova, I.; Yurkov, A.; Chernov, I.

2009 Biology Bulletin

doi:10.1134/S1062359009060107

The subject of this research is epiphytic yeast communities formed on the surface of Sorbus aucuparia. The object is to make quantitative assessment of the yeast communities’ differentiation of the same but distant substratum. Results of the nested ANOVA demonstrated that with increase in...

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Biology Bulletin Volume 36 Issue 6

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Biology Bulletin Volume 36 Issue 6

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