Die wirkung von 3,4-benzpyren auf die ultrastruktur der grünalge Scenedesmus quadricauda in synchronkultur

Abarzua, A.-Sibylle; Wittenburg, Eckard; Sulek, Josef; Zachleder, Vilém

doi:10.1016/s0003-9365(85)80039-7

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…Indeed all treatments that in some way inhibit these processes led to the accumulation of reserves (mostly in the form of starch). Examples include the effects of FdUrd, cycloheximide, sublethal temperature or high light intensities described in sections above, the effects of benzopyrene (Abarzua et al, 1985), and high concentration of selenium compounds (Geoffroy et al, 2007;Vítová et al, 2011a).…”

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confidence: 99%

Accumulation of energy reserves in algae: From cell cycles to biotechnological applications

Vítová

Bišová

Kawano

et al. 2015

Biotechnology Advances

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212

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Starch and lipids are key components of algal cells and responsible for buffering variable supplies of energy and carbon that are vital for cell growth and reproduction, particularly DNA replication, nuclear and cellular division. The basic characteristics of energy reserves, their ultrastructure and localization inside the cell, regulation of their synthesis in relation to cell cycle phases, and their control by external factors, including light intensity, temperature, and carbon dioxide are described. Over the last two decades, research in this field has been boosted by possible biotechnological applications of algae for the production of biofuels from energy conserving compounds (bioethanol from starch and biodiesel from lipids). Recent findings on mechanisms that lead to an accumulation of exceptionally high levels of starch and lipids in algae will be summarized in this review. Macroelement (N, S, P) limitation, or depletion in mineral medium, as the most widely used approaches for enhancing both starch and lipid accumulation, are reviewed in detail. Potential biotechnological strategies for the economically viable overproduction of lipid and starch, such as a two-step procedure exploiting the effects of nutrient limitation and depletion, as well as the means and rationale for selecting appropriate strains, are discussed.

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confidence: 99%

Accumulation of energy reserves in algae: From cell cycles to biotechnological applications

Vítová

Bišová

Kawano

et al. 2015

Biotechnology Advances

Self Cite

212

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“…In any case, this morphological component seems to respond quickly to exposure and its biochemical properties deserve further investigation. Increases in storage product accumulation have also been noted for other organic toxicants (Soto et al 1977;Abarzua et al 1985).…”

Section: Discussionmentioning

confidence: 77%

Effects of chlorinated benzenes on diatom fatty acid composition and quantitative morphology. III. 1,2,3-Trichlorobenzene

Simmons

Sicko-Goad

Hall

et al. 1989

Arch. Environ. Contam. Toxicol.

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Cells of the diatom Cyclotella meneghiniana were exposed in a closed system to 0.245 ppm 1,2,3-trichlorobenzene. Response of the diatom was measured by quantitative ultrastructure and fatty acid percent composition over a 5-day period. During that time, 35 significant morphological and 12 fatty acid percent composition changes occurred. The most pronounced morphological change that occurred was a significant increase in lipid volume. In addition, changes were observed in vacuolar relative volume, suggesting that the tonoplast became more permeable. Fewer significant changes were observed in fatty acid percent composition upon exposure to this isomer. However, there was a consistent increase in oleic acid (C18:1). The observed changes in morphological and fatty acid percent composition were uniformly distributed with time after the first hour of exposure. Results support the hypothesis that increased lipid stores may alter the timing of response to lipophilic toxicants.

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Raman and fluorescence microscopy sensing energy-transducing and energy-storing structures in microalgae

et al. 2016

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Die wirkung von 3,4-benzpyren auf die ultrastruktur der grünalge Scenedesmus quadricauda in synchronkultur

Cited by 3 publications

References 13 publications

Accumulation of energy reserves in algae: From cell cycles to biotechnological applications

Accumulation of energy reserves in algae: From cell cycles to biotechnological applications

Effects of chlorinated benzenes on diatom fatty acid composition and quantitative morphology. III. 1,2,3-Trichlorobenzene

Raman and fluorescence microscopy sensing energy-transducing and energy-storing structures in microalgae

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