Results 161 to 170 of about 5,914 (194)
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Physiological responses of Dunaliella salina and Dunaliella tertiolecta to copper toxicity
Biomolecular Engineering, 2005Species differences in heavy metal tolerance were investigated by comparing the responses of Dunaliella tertiolecta and Dunaliella salina to elevated concentrations of CuCl2. Although both species showed reduced cell number ml(-1) of algal culture, D. salina was more affected by increase in CuCl2. This reflects higher sensitivity of D.
K, Nikookar, A, Moradshahi, L, Hosseini
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Bioresource Technology, 2010
Sterols have been extracted and analysed from Dunaliellatertiolecta and Dunaliella salina, in order to evaluate a potentially novel industrial exploitation of these microalgae as source of phytosterols. The effect of salt concentration on sterols yields has been studied varying the quantities of NaCl into culture medium.
Francavilla, Matteo +2 more
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Sterols have been extracted and analysed from Dunaliellatertiolecta and Dunaliella salina, in order to evaluate a potentially novel industrial exploitation of these microalgae as source of phytosterols. The effect of salt concentration on sterols yields has been studied varying the quantities of NaCl into culture medium.
Francavilla, Matteo +2 more
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Naphthenic acid biodegradation by the unicellular alga Dunaliella tertiolecta
Chemosphere, 2011Naphthenic acids (NAs) are a major contributor to toxicity in tailings waste generated from bitumen production in the Athabasca Oil Sands region. While investigations have shown that bacteria can biodegrade NAs and reduce tailings toxicity, the potential of algae to biodegrade NAs and the biochemical mechanisms involved remain poorly understood.
Dean M, Quesnel +3 more
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A salt-sensitive mutant of Dunaliella tertiolecta
Archives of Microbiology, 1987A mutant of Dunaliella tertiolecta produced by treatment with methyl nitrosoguanidine and designated HL25/8, grew more slowly than the parent strain under all experimental conditions and was conspicuously less tolerant of NaCl. Total photosynthetic activity (C-fixation and O2 evolution) was less in HL25/8 than in the parent strain and was affected ...
A. D. Brown +3 more
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Lipid composition of halotolerant algae, Dunaliella parva lerche and Dunaliella tertiolecta
Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1982Abstract The lipids of two halotolerant algae, Dunaliella parva Lerche and Dunaliella tertiolecta , contained predominantly the glycolipids monogalactosyldiacylglycerol (21.4 and 22.2 mol% for D. parva and D. tertiolecta , respectively), digalactosyldiacylglycerol (11.4 and 20.5 mol%), sulfoquinovosyldiacylglycerol (6.5 and 9.5 mol%) and two ...
R.W. Evans +3 more
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ปัจจัยที่มีผลต่อการเติบโตและการผลิตลูทีนในจุลสาหร่าย Dunaliella tertiolecta
2023การศึกษานี้ประเมินความเป็นไปได้ของการนำจุลสาหร่าย Dunaliella tertiolecta จากคลังเก็บสายพันธุ์ของห้องปฏิบัติการมาศึกษาการผลิตลูทีนภายใต้สภาวะความเค็ม, ปริมาณและแหล่งไนโตรเจน, ความเข้มแสงและความยาวคลื่นแสง และรูปแบบการให้อากาศที่แตกต่างกัน ดำเนินการทดลองเพาะเลี้ยงจุลสาหร่ายในขวดแก้วดูแรนขนาด 2 ลิตร (เส้นผ่านศูนย์กลาง 136 มิลลิเมตร x ความสูง 248 มิลล ...
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Genome Size Affects Fitness in the Eukaryotic Alga Dunaliella tertiolecta
Current Biology, 2020Genome size is tightly coupled to morphology, ecology, and evolution among species [1-5], with one of the best-known patterns being the relationship between cell size and genome size [6, 7]. Classic theories, such as the "selfish DNA hypothesis," posit that accumulating redundant DNA has fitness costs but that larger cells can tolerate larger genomes ...
Martino E, Malerba +2 more
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Toxic effects of ZnO nanoparticles towards marine algae Dunaliella tertiolecta
Science of The Total Environment, 2013Dose response curve and population growth rate alterations of marine Chlorophyte Dunaliella tertiolecta derived from the exposure to ZnO nanoparticles were evaluated. Bulk ZnO and ionic zinc were also investigated for comparison. At the same time, the aggregation state and particle size distribution were monitored.
Sonia, Manzo +4 more
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Histidine Utilization by the Unicellular Alga Dunaliella tertiolecta
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 1998The unicellular alga Dunaliella tertiolecta was cultivated axenically with histidine, or ammonium, or histidine and ammonium ions as nitrogen sources. In the presence of histidine as the sole source of nitrogen, cell growth is comparable to that observed with the same concentration of nitrogen in ammonium form.
Hellio, Claire, Le Gal, Y.
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PHOTOTOXICITY OF AZAARENE ISOMERS TO THE MARINE FLAGELLATE DUNALIELLA TERTIOLECTA
Environmental Toxicology and Chemistry, 2001AbstractMany studies have shown that narcosis or baseline toxicity of polycyclic aromatic hydrocarbons (PAHs) is strongly related to their lipophilicity. For azaarenes, such relationships have also been demonstrated, but for some compounds, deviations from these relationships have been observed, even for closely related compounds such as isomers.
Wiegman, S. +4 more
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