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Influence of nitrogen deficiency on biochemical composition of the green alga Botryococcus / N. O. Zhila, G. S. Kalacheva, T. G. Volova // Journal of Applied Phycology. - 2005. - Vol. 17, Is. 4. - P309-315, DOI 10.1007/s10811-005-7212-x . - ISSN 0921-8971
Кл.слова (ненормированные):
Botryococcus -- Fatty acids -- Lipids -- Nitrogen deficiency -- biochemical composition -- green alga -- algae -- Botryococcus -- Botryococcus braunii -- Chlorophyta
Аннотация: A study has been carried out to investigate the influence of nitrogen deficiency on intracellular lipid composition, including total fatty acid composition of lipids, polar lipids, and triacylglycerols, of the alga Botryococcus braunii Kutz IPPAS H-252 in batch culture. Under nitrogen limitation, the alga accumulates lipids as triacylglycerols and the total fatty acid (FA) composition changes: trienoic acids decrease (from 52.8-57.2 to 19.5-24.7% of the total FAs) and the oleic acid increases (from 1.1-1.2 to 17.1-24.4%) as does the saturated acids (from 23.7-26 to 32.9-46.1%). A similar rearrangement in the FA spectrum occurs at later times in the control culture, but it is less pronounced. Under nitrogen limitation, considerable changes in the polar lipid FAs are registered at day 13: saturated acids increase (from 28.6-35.5 to 76.8%) and all polyenoic acids markedly decrease (from 56.9-64.1 to 6.8%). Changes in the triacylglycerol fatty acid spectrum are seen on day 7: the oleic acid increases (from 14.7 to 34.2%) and remains at a high level till the end of the culture. In the control, triacylglycerols with large contents of oleic acid are detected at day 13, the total lipids and triacylglycerols still remaining unchanged. В© Springer 2005.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, 660036 Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Zhila, N.O.; Kalacheva, G.S.; Volova, T.G.

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The effect of temperature on the lipid composition of Botryococcus / G. S. Kalacheva [и др.] // Mikrobiologiya. - 2002. - Vol. 71, Is. 3. - С. 336-344 . - ISSN 0026-3656
Кл.слова (ненормированные):
fatty acid -- lipid -- triacylglycerol -- article -- biosynthesis -- chemistry -- comparative study -- green alga -- growth, development and aging -- metabolism -- temperature -- Algae, Green -- Fatty Acids -- Lipids -- Temperature -- Triglycerides
Аннотация: The lipid composition of the green alga Botryococcus was studied at three different cultivation temperatures: suboptimal, optimal, and supraoptimal. Cultivation at the supraoptimal temperature was found to considerably inhibit the synthesis of nearly all intracellular lipids, except for triacylglycerides, and to influence their fatty acid composition. In particular, the content of trienoic fatty acids was significantly lower at the supraoptimal than at the optimal cultivation temperature. At the same time, the fatty acid composition of the extracellular lipids of the alga virtually did not depend on cultivation temperature.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036 Russia. : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kalacheva, G.S.; Zhila, N.O.; Volova, T.G.; Gladyshev, M.I.

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Transfer of essential polyunsaturated fatty acids from an aquatic to terrestrial ecosystem through the fish-bird trophic pair / M. I. Gladyshev [et al.] // Doklady Biological Sciences. - 2010. - Vol. 431, Is. 1. - P121-123, DOI 10.1134/S0012496610020146 . - ISSN 0012-4966
Кл.слова (ненормированные):
fatty acid -- fresh water -- triacylglycerol -- unsaturated fatty acid -- animal -- article -- biological model -- biomass -- bird -- chemistry -- ecosystem -- fish -- food chain -- metabolism -- muscle -- pathology -- physiology -- species difference -- Animals -- Biomass -- Birds -- Ecosystem -- Fatty Acids -- Fatty Acids, Unsaturated -- Fishes -- Food Chain -- Fresh Water -- Models, Biological -- Muscles -- Species Specificity -- Triglycerides -- Aves

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Papanin Institute of Inland Water Biology, Russian Academy of Sciences, Borok, Yaroslavl' oblast, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Gladyshev, M.I.; Krylov, A.V.; Sushchik, N.N.; Malin, M.I.; Makhutova, O.N.; Chalova, I.V.; Kalacheva, G.S.

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Comparison of fatty acid contents and composition in major lipid classes of larvae and adults of mosquitoes (Diptera: Culicidae) from a steppe region / N. N. Sushchik [et al.] // Insect Science. - 2013. - Vol. 20, Is. 5. - P585-600, DOI 10.1111/j.1744-7917.2012.01582.x . - ISSN 1672-9609
Кл.слова (ненормированные):
Amphibiotic insects -- Essential fatty acids -- Metamorphosis -- Mosquitoes -- Short-chain polyunsaturated fatty acids
Аннотация: Emerging aquatic insects, including mosquitoes, are known to transfer to terrestrial ecosystems specific essential biochemicals, such as polyunsaturated fatty acids (PUFA). We studied fatty acid (FA) composition and contents of dominant mosquito populations (Diptera: Culicidae), that is, Anopheles messeae, Ochlerotatus caspius, Oc. flavescens, Oc. euedes, Oc. subdiversus, Oc. cataphylla, and Aedes cinereus, inhabited a steppe wetland of a temperate climate zone to fill up the gap in their lipid knowledge. The polar lipid and triacylglycerol fractions of larvae and adults were compared. In most studied mosquito species, we first found and identified a number of short-chain PUFA, for example, prominent 14:2n-6 and 14:3n-3, which were not earlier documented in living organisms. These PUFA, although occurred in low levels in adult mosquitoes, can be potentially used as markers of mosquito biomass in terrestrial food webs. We hypothesize that these acids might be synthesized (or retroconverted) by the mosquitoes. Using FA trophic markers accumulated in triacylglycerols, trophic relations of the mosquitoes were accessed. The larval diet comprised green algae, cryptophytes, and dinoflagellates and provided the mosquitoes with essential n-3 PUFA, linolenic, and eicosapentaenoic acids. As a result, both larvae and adults of the studied mosquitoes had comparatively high content of the essential PUFA. Comparison of FA proportions in polar lipids versus storage lipids shown that during mosquito metamorphosis transfer of essential eicosapentaenoic and arachidonic acids from the reserve in storage lipids of larvae to functional polar lipids in adults occurred. В© 2012 Institute of Zoology, Chinese Academy of Sciences.

Scopus
Держатели документа:
Institute of Biophysics of Siberian Branch of Russian Academy of Sciences, Akademgorodok, 50/50, Krasnoyarsk, Russian Federation
Institute of Fundamental Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Systematics, Ecology of Animals of Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Sushchik, N.N.; Yurchenko, Y.A.; Gladyshev, M.I.; Belevich, O.E.; Kalachova, G.S.; Kolmakova, A.A.

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The information value of fatty acid composition of triacylglycerols and polar lipids of seston in assaying the food spectrum of microzooplankton in the bugach reservoir. / O. N. Makhutova, N. N. Sushchik, G. S. Kalacheva // Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections / translated from Russian. - 2004. - Vol. 395. - P143-145 . - ISSN 0012-4966
Кл.слова (ненормированные):
fatty acid -- fresh water -- lipid -- triacylglycerol -- article -- bacterium -- biomass -- chemistry -- Cyanobacterium -- diatom -- ecosystem -- metabolism -- physiology -- phytoplankton -- Russian Federation -- season -- Bacteria -- Biomass -- Cyanobacteria -- Diatoms -- Ecosystem -- Fatty Acids -- Fresh Water -- Lipids -- Phytoplankton -- Russia -- Seasons -- Triglycerides

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk. : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Makhutova, O.N.; Sushchik, N.N.; Kalacheva, G.S.

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