Results 151 to 160 of about 2,015 (195)

Toxic effects of ZnO nanoparticles towards marine algae Dunaliella tertiolecta

Science of The Total Environment, 2013
Dose 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, Maria Lucia, Miglietta, Gabriella, Rametta, Silvia, Buono, Girolamo, Di Francia   +4 more
openaire   +3 more sources

Polyethylene, Polystyrene, and Polypropylene leachate impact upon marine microalgae Dunaliella tertiolecta

Journal of Toxicology and Environmental Health - Part A: Current Issues, 2021
In the aquatic environment, plastics may release several hazardous substances of severe ecotoxicological concern not covalently bound to the polymers.
Simona Schiavo, Salvatore Chiavarini, Stefano Dumontet   +2 more
exaly   +2 more sources

Effects of Salt Concentrations and Nitrogen and Phosphorus Starvations on Neutral Lipid Contents in the Green Microalga Dunaliella tertiolecta [PDF]

Journal of Agricultural and Food Chemistry, 2017
Dunaliella tertiolecta, a halotolerant alga, can accumulate large amounts of neutral lipid, which makes it a potential biodiesel feedstock. In this study, neutral lipids of D. tertiolecta induced by different salinities or N or P starvation were analyzed
Ming-Hua Liang, Qiang Wang, Jian-Guo Jiang   +2 more
exaly   +2 more sources

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Physiological responses of Dunaliella salina and Dunaliella tertiolecta to copper toxicity

Biomolecular Engineering, 2005
Species 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
openaire   +2 more sources

A salt-sensitive mutant of Dunaliella tertiolecta

Archives of Microbiology, 1987
A 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, A. Goyal, H. Larsen, R. McC. Lilley   +3 more
openaire   +1 more source

PHOTOTOXICITY OF AZAARENE ISOMERS TO THE MARINE FLAGELLATE DUNALIELLA TERTIOLECTA

Environmental Toxicology and Chemistry, 2001
AbstractMany 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., van Vlaardingen, P.L.A., Bleeker, E.A.J., de Voogt, P., Kraak, M.H.S.   +4 more
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Naphthenic acid biodegradation by the unicellular alga Dunaliella tertiolecta

Chemosphere, 2011
Naphthenic 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, Iyswarya M, Bhaskar, Lisa M, Gieg, Gordon, Chua   +3 more
openaire   +2 more sources

ปัจจัยที่มีผลต่อการเติบโตและการผลิตลูทีนในจุลสาหร่าย Dunaliella tertiolecta

2023
การศึกษานี้ประเมินความเป็นไปได้ของการนำจุลสาหร่าย Dunaliella tertiolecta จากคลังเก็บสายพันธุ์ของห้องปฏิบัติการมาศึกษาการผลิตลูทีนภายใต้สภาวะความเค็ม, ปริมาณและแหล่งไนโตรเจน, ความเข้มแสงและความยาวคลื่นแสง และรูปแบบการให้อากาศที่แตกต่างกัน  ดำเนินการทดลองเพาะเลี้ยงจุลสาหร่ายในขวดแก้วดูแรนขนาด 2 ลิตร (เส้นผ่านศูนย์กลาง 136 มิลลิเมตร x ความสูง 248 มิลล ...
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Homologous sense and antisense expression of a gene in Dunaliella tertiolecta

Planta, 2015
Dunaliella transformation using antisense and sense technology developed in this study will provide powerful tools for functional analysis and pathway-specific metabolic engineering in Dunaliella for industrial applications. Our aim was to investigate the potential of antisense expression and overexpression of a specific gene, the carotenoid ...
Jing Yue, Zhang, Hancheol, Jeon, Sang Jun, Sim, Yew, Lee, EonSeon, Jin   +4 more
openaire   +2 more sources

Lipid composition of halotolerant algae, Dunaliella parva lerche and Dunaliella tertiolecta

Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1982
Abstract 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, M. Kates, M. Ginzburg, B.-Z. Ginzburg   +3 more
openaire   +1 more source