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Каталог книг и продолжающихся изданий библиотеки Института биофизики СО РАН (2)

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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zotina T.A., Kalachova G.S., Bolsunovsky A.Ya., Degermendzhy A.G.
Заглавие : 241Am distribution in the biomass of freshwater macrophytes
Место публикации : Doklady Biological Sciences. - 2008. - Vol. 421, Is. 1. - С. 254-256. - ISSN 00124966 (ISSN) , DOI 10.1134/S0012496608040108
Ключевые слова (''Своб.индексиров.''): americium--carbohydrate--cellulose--lipid--nitrogen--polysaccharide--vegetable protein--article--biomass--bryopsida--cell membrane--cell wall--chemistry--cytoplasm--food chain--growth, development and aging--hydrocharitaceae--metabolism--americium--biomass--bryopsida--carbohydrates--cell membrane--cell wall--cellulose--cytoplasm--food chain--hydrocharitaceae--lipids--nitrogen--plant proteins--polysaccharides
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zotina T.A., Kalacheva G.S., Bolsunovsky A.Y.
Заглавие : Biochemical fractionation and cellular distribution of americium and plutonium in the biomass of freshwater macrophytes
Место публикации : Journal of Radioanalytical and Nuclear Chemistry. - 2011. - Vol. 290, Is. 2. - С. 447-451. - ISSN 02365731 (ISSN) , DOI 10.1007/s10967-011-1228-2
Ключевые слова (''Своб.индексиров.''): 238, 242pu--241am--carbohydrates--cellulose--fractionation--protein--submerged macrophyte--americium 241--plutonium--plutonium 238--plutonium 242--polysaccharide--unclassified drug--article--bioaccumulation--biomass--cellular distribution--ceratophyllum demersum--controlled study--cytosol--elodea canadensis--fontinalis antipyretica--fractionation--freshwater species--macrophyte--moss--myriophyllum spicatum--nonhuman--plant cell--radiation absorption--radioactivity--shoot
Аннотация: Accumulation of americium ( 241Am) and plutonium ( 238,242Pu) and their distribution in cell compartments and biochemical components of the biomass of freshwater aquatic plants Elodea canadensis, Ceratophyllum demersum and Myrioplyllum spicatum and aquatic moss Fontinalis antipyretica have been investigated in laboratory experiments. Americium and plutonium taken up from water by Elodea canadensis apical shoots were mainly absorbed by structural components of plant cells (90% for 241Am; 89% for 238Pu and 82-87% for 242Pu). About 10-18% of isotope activity was recorded in the cytosol fraction. The major concentration (76-92%) of americium was bound to cell wall cellulose-like polysaccharides of Elodea canadensis, Myriophyllum spicatum, Ceratophyllum demersum and Fontinalis antipyretica, 8-24% of americium activity was registered in the fraction of proteins and carbohydrates, and just a minor concentration (<1%) in the lipid fraction. The distribution of plutonium in the biomass fractions of Elodea was similar to that of americium. Hence, americium and plutonium had the highest affinity to cellulose-like polysaccharides of cell walls of freshwater submerged macrophytes. В© 2011 Akademiai Kiado, Budapest, Hungary.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rodicheva E.K., Trubachev I.N., Medvedeva S.E., Egorova O.I. U - Shitova LYu
Заглавие : Growth and luminescence of luminous bacteria promoted by agents of microbial origin.
Место публикации : Journal of bioluminescence and chemiluminescence. - 1993. - Vol. 8, Is. 6. - С. 293-299. - ISSN 08843996 (ISSN)
Ключевые слова (''Своб.индексиров.''): amino acid--carbohydrate--folic acid--luciferase--nitrogen--riboflavin--article--biosynthesis--culture medium--electron microscopy--growth, development and aging--kinetics--luminescence--metabolism--photobacterium--physiology--time--ultrastructure--vibrio--amino acids--carbohydrates--culture media--folic acid--kinetics--luciferase--luminescence--microscopy, electron--nitrogen--photobacterium--riboflavin--time factors--vibrio
Аннотация: The examination of four species of luminous bacteria Photobacterium leiognathi, Photobacterium phosphoreum, Vibrio fischeri and Vibrio harveyi has enabled us to reveal some nutrient medium components effecting growth, luminescence intensity and luciferase synthesis. These agents are nucleic components (nucleotides, nucleotides and amine bases), amino acids and vitamins, which are part of hydrolysates from the biomass of various lithotrophic microorganisms, hydrogen-oxidizing, iron-oxidizing and carboxydobacteria. The effect of promoting agents essentially alters the physiological state and ultrastructure of the cells of luminous bacteria and increases luciferase biosynthesis two- to three-fold compared to a control.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Volova T.G., Kalacheva G.S., Zhilo N.O., Plotnikov V.F.
Заглавие : Physiological and biochemical properties of the alga Botryococcus braunii
Место публикации : Russian Journal of Plant Physiology. - 1998. - Vol. 45, Is. 6. - С. 775-779. - ISSN 10214437 (ISSN)
Ключевые слова (''Своб.индексиров.''): batch culture--botryococcus braunii--liquid hydrocarbons--productivity
Аннотация: The growth, productivity, and changes in the chemical composition of the green alga Botryococcus braunii Kutz H-252 were studied at different phases of growth in a luminostat culture. Modification of the Prat medium resulted in an increase in the alga yield to 3.9 g/l and a decrease in the generation time to 3-4 days. The specific growth rate during the exponential phase was 0.235/ day. These values are comparable with the best results obtained abroad. Among the pigments of B. braunii, besides chlorophylls a and b, carotene, lutein, neoxanthin, and violaxanthin were also identified. The highest content of these pigments, based on dry weight, was achieved during the exponential growth phase. During culture aging, there was an accumulation of carbohydrates and lipids in addition to a simultaneous decrease in the concentration of nitrogen-containing substances. It was discovered that this strain can synthesize liquid hydrocarbons. These hydrocarbons were found both in the alga biomass (ca. 1% of dry weight) and among the extracellular metabolites (up to 10.3 mg/l).
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