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1. 15N photo-CIDNP MAS NMR on both photosystems and magnetic field-dependent 13C photo-CIDNP MAS NMR in photosystem II of the diatom Phaeodactylum tricornutum

Author:
Jeremias C. Zill; Marcel Kansy; Reimund Goss; A. Alia; Christian Wilhelm; Jörg Matysik
Source:
Photosynthesis research 2019 v.140 no.2 pp. 151-171
ISSN:
0166-8595
Subject:
Phaeodactylum tricornutum; aquatic ecosystems; carotenoids; chlorophyll; imidazole; magnesium; magnetic fields; nuclear magnetic resonance spectroscopy; photosystem II
Abstract:
... Diatoms contribute about 20–25% to the global marine productivity and are successful autotrophic players in all aquatic ecosystems, which raises the question whether this performance is caused by differences in their photosynthetic apparatus. Photo-CIDNP MAS NMR presents a unique tool to obtain insights into the reaction centres of photosystems (PS), by selective enhancement of NMR signals from bo ...
DOI:
10.1007/s11120-018-0578-9

2. The 24 hour recovery kinetics from n starvation in Phaeodactylum tricornutum and Emiliania huxleyi

Author:
Yan Zhao; You Wang; Antonietta Quigg; T. Mock
Source:
Journal of phycology 2015 v.51 no.4 pp. 726-738
ISSN:
0022-3646
Subject:
Emiliania huxleyi; Phaeodactylum tricornutum; absorption; carotenoids; cell division; chlorophyll; community structure; models; nitrates; nitrogen; photosystem II; phytoplankton; pigments; species diversity; starvation
Abstract:
... The response of N (nitrate) starved cells of the diatom Phaeodactylum tricornutum and the coccolithophore Emiliania huxleyi to a pulse of new N were measured to investigate rapid cellular and photosynthetic recovery kinetics. The changes of multiple parameters were followed over 24 h. In P. tricornutum, the recovery of Fᵥ/Fₘ (the maximum quantum yield of PS II) and σPSII (the functional absorption ...
DOI:
10.1111/jpy.12314

3. Abiotic stress modifies the synthesis of alpha‐tocopherol and beta‐carotene in phytoplankton species

Author:
Norbert Häubner; Peter Sylvander; Kristiina Vuori; Pauline Snoeijs; M. Wood
Source:
Journal of phycology 2014 v.50 no.4 pp. 753-759
ISSN:
0022-3646
Subject:
aquatic food webs; reactive oxygen species; lipid peroxidation; alpha-tocopherol; Rhodomonas; aquatic ecosystems; Skeletonema costatum; beta-carotene; laboratory experimentation; phytoplankton; Prorocentrum; Dunaliella tertiolecta; climate change; species diversity; Phaeodactylum tricornutum; abiotic stress; temperature; Nodularia spumigena; food intake; salinity; photosystem II
Abstract:
... We performed laboratory experiments to investi‐gate whether the synthesis of the antioxidants α‐tocopherol (vitamin E) and β‐carotene in phytoplankton depends on changes in abiotic factors. Cultures of Nodularia spumigena, Phaeodactylum tricornutum, Skeletonema costatum, Dunaliella tertiolecta, Prorocentrum cordatum, and Rhodomonas salina were incubated at different tempe‐ratures, photon flux dens ...
DOI:
10.1111/jpy.12198

4. Absorption efficiency of blue mussels (Mytilus edulis and M. trossulus) feeding on Atlantic salmon (Salmo salar) feed and fecal particulates: Implications for integrated multi-trophic aquaculture

Author:
Reid, G.K.; Liutkus, M.; Bennett, A.; Robinson, S.M.C.; MacDonald, B.; Page, F.
Source:
Aquaculture 2010 v.299 no.1-4 pp. 165-169
ISSN:
0044-8486
Subject:
Salmo salar; fish culture; mussels; Chaetoceros; feeds; mariculture; feces; Phaeodactylum tricornutum; salmon; Mytilus edulis; fish feeding; mollusc culture
Abstract:
... Blue mussels (Mytilus edulis and M. trossulus) are grown adjacent to Atlantic salmon (Salmo salar) cages in some open-water, Integrated Multi-Trophic Aquaculture (IMTA) systems. Absorption efficiency (AE) data of salmon feed ‘fines' or salmon feces consumed by blue mussels is limited, but is crucial for determining organic load delivery to secondary niches (e.g. deposit feeders placed under mussel ...
DOI:
10.1016/j.aquaculture.2009.12.002

5. Accelerated biogenic silica dissolution by marine invertebrate digestion: in comparison with phosphorus and iron

Author:
Ying Wang; Shaoping Kuang; Guangtao Zhang
Source:
Journal of oceanology and limnology 2022 v.40 no.3 pp. 1110-1120
ISSN:
2096-5508
Subject:
Crassostrea gigas; Phaeodactylum tricornutum; digestion; excretion; herbivores; iron; limnology; oceanography; oysters; phosphorus; raw foods; rice hulls; seawater; silica
Abstract:
... Herbivore digestion in aquatic ecosystems is usually considered a method of nutrient repackaging rather than recycling, as recalcitrant and low-level nutrients are presumed for their egesta. We hypothesize that this opinion holds only for nutrients recycled by excretion and egestion, not for those elements recycled overwhelmingly by fecal decomposition. In this study, we compared the dissolution o ...
DOI:
10.1007/s00343-021-1117-7

6. Acidic pH-Induced Modification of Energy Transfer in Diatom Fucoxanthin Chlorophyll a/c-Binding Proteins

Author:
Ryo Nagao; Makio Yokono; Yoshifumi Ueno; Jian-Ren Shen; Seiji Akimoto
Source:
Journal of physical chemistry 2020 v.124 no.24 pp. 4919-4923
ISSN:
1520-5207
Subject:
Phaeodactylum tricornutum; chlorophyll; crystal structure; energy transfer; fluorescence; fluorescence emission spectroscopy; models; pH; photosynthesis
Abstract:
... pH influences excitation-energy-relaxation processes in photosynthetic light-harvesting complexes. Here, we report the excitation-energy dynamics by pH changes in fucoxanthin chlorophyll a/c-binding proteins (FCPs) isolated from a diatom Phaeodactylum tricornutum, probed by time-resolved fluorescence spectroscopy at 77 K. The fluorescence curve measured at pH 5.0 showed a shorter lifetime componen ...
DOI:
10.1021/acs.jpcb.0c04231

7. Actin, actin-related proteins and profilin in diatoms: A comparative genomic analysis

Author:
Charlotte Aumeier; Ellen Polinski; Diedrik Menzel
Source:
Marine genomics 2015 v.23 pp. 133-142
ISSN:
1874-7787
Subject:
Phaeodactylum tricornutum; Thalassiosira; actin; algae; aquatic habitat; branching; cytoskeleton; databases; eukaryotic cells; genes; genetic transformation; genomics; profilins
Abstract:
... Diatoms are heterokont unicellular algae with a widespread distribution throughout all aquatic habitats. Research on diatoms has advanced significantly over the last decade due to available genetic transformation methods and publicly available genome databases. Yet up to now, proteins involved in the regulation of the cytoskeleton in diatoms are largely unknown. Consequently, this work focuses on ...
DOI:
10.1016/j.margen.2015.07.002

8. Adaptation of light-harvesting and energy-transfer processes of a diatom Phaeodactylum tricornutum to different light qualities

Author:
Kumiko Oka; Yoshifumi Ueno; Makio Yokono; Jian-Ren Shen; Ryo Nagao; Seiji Akimoto
Source:
Photosynthesis research 2020 v.146 no.1-3 pp. 227-234
ISSN:
0166-8595
Subject:
Phaeodactylum tricornutum; energy transfer; fluorescence; photosynthesis; red light; research
Abstract:
... Fucoxanthin-chlorophyll (Chl) a/c–binding proteins (FCPs) are light-harvesting pigment–protein complexes found in diatoms and brown algae. Due to the characteristic pigments, such as fucoxanthin and Chl c, FCPs can capture light energy in blue-to green regions. A pennate diatom Phaeodactylum tricornutum synthesizes a red-shifted form of FCP under weak or red light, extending a light-absorption abi ...
DOI:
10.1007/s11120-020-00714-1

9. Addressing various compartments of the diatom model organism Phaeodactylum tricornutum via sub-cellular marker proteins

Author:
Xiaojuan Liu; Franziska Hempel; Simone Stork; Kathrin Bolte; Daniel Moog; Thomas Heimerl; Uwe G. Maier; Stefan Zauner
Source:
Algal research 2016 v.20 pp. 249-257
ISSN:
2211-9264
Subject:
Phaeodactylum tricornutum; chemical elements; models; plastids; protein transport; proteins
Abstract:
... The diatom Phaeodactylum tricornutum is a prominent organism to study protein import mechanisms into complex plastids surrounded by four membranes. In this regard, various molecular techniques were adapted and established for this organism, so that nowadays a broad range of questions in a variety of research disciplines can be addressed. At least in the case of sub-cellular localization studies, t ...
DOI:
10.1016/j.algal.2016.10.018

10. Adenosine content and growth in the diatom Phaeodactylum tricornutum (Bacillariophyceae): effect of salinity, light, temperature and nitrate

Author:
Siv Kristin Prestegard; Gjert Knutsen; Lars Herfindal
Source:
Diatom research 2014 v.29 no.4 pp. 361-369
ISSN:
2159-8347
Subject:
Phaeodactylum tricornutum; adenosine; adenosine monophosphate; animals; aquaculture feeds; biofuels; cells; dephosphorylation; energy; hydrolysis; light intensity; lipids; metabolism; metabolites; microalgae; nitrates; phosphorylation; physiological response; salinity; temperature
Abstract:
... There are many known functions and regulatory mechanisms of the key metabolite adenosine in animal and plant cells, but little is known about its metabolism and how growth conditions affect the adenosine content in microalgae. In this study, we examined the influence of salinity, light intensity, temperature and nitrate concentration on growth rates and adenosine content in batch cultures of the d ...
DOI:
10.1080/0269249X.2014.889040

11. Adhesion molecules from the diatom Phaeodactylum tricornutum (Bacillariophyceae): genomic identification by amino‐acid profiling and in vivo analysis

Author:
Anusuya Willis; Maeve Eason‐Hubbard; Oliver Hodson; Uma Maheswari; Chris Bowler; Richard Wetherbee; K. Valentin
Source:
Journal of phycology 2014 v.50 no.5 pp. 837-849
ISSN:
0022-3646
Subject:
Phaeodactylum tricornutum; adhesion; atomic force microscopy; bioinformatics; cell adhesion; eukaryotic cells; gene overexpression; genes; genetically modified organisms; lectins; phenotype; prokaryotic cells; quartz; turbulent flow; yellow fluorescent protein
Abstract:
... Cell adhesion molecules (CAMs) are important in prokaryotes and eukaryotes for cell–cell and cell–substratum interactions. The characteristics of adhesive proteins in the model diatom Phaeodactylum tricornutum were investigated by bioinformatic analysis and in vivo characterization. Bioinformatic analysis of the protein coding potential of the P. tricornutum genome used an amino‐acid profile that ...
DOI:
10.1111/jpy.12214

12. Algal-available Phosphorus Entering the Gulf of Finland as Estimated by Algal Assays and Chemical Analyses

Author:
Petri Ekholm; Hannu Rita; Heikki Pitkänen; Pirjo Rantanen; Jouko Pekkarinen; Uwe Münster
Source:
Journal of environmental quality 2009 v.38 no.6 pp. 2322-2333
ISSN:
1537-2537
Subject:
chemical composition; algal blooms; estimation; rivers; effluents; algae; nutrient availability; Selenastrum capricornutum; bioassays; Phaeodactylum tricornutum; eutrophication; surface water; wastewater; accuracy; phosphorus; Gulf of Finland
Abstract:
... Algal-available phosphorus (Pₐₐ) in river water and wastewater entering the Gulf of Finland (a Baltic Sea sub-basin) was estimated by a fresh-water and a brackish-water modification of the dual-culture algal assay. The assay results were further related to those obtained by routine chemical analyses. According to the brackish-water assay, an average of 44% (range, 9–88%) of total phosphorus (TP) i ...
DOI:
10.2134/jeq2008.0356
PubMed:
19875788

13. Alginate/albumin in incubation solution mediates the adhesion and biofilm formation of typical marine bacteria and algae

Author:
Xiaoyan He; Yi Liu; Xiuqin Bai; Chengqing Yuan; Hua Li
Source:
Biochemical engineering journal 2018 v.139 pp. 25-32
ISSN:
1369-703X
Subject:
Bacillus (bacteria); Chlorella pyrenoidosa; Phaeodactylum tricornutum; adhesion; adsorption; albumins; algae; alginates; aquatic bacteria; atomic force microscopy; biofilm; biofouling; biomass; marine environment; roughness; seawater; silicon; surface roughness; wafers; wettability
Abstract:
... Adhesion of microorganisms in the marine environment is one of the initial events responsible for the occurrence of biofouling. A variety of factors play roles in regulating adhesion behaviors and subsequent biofilm formation. Here the study was focused on the influence of the typical marine polysaccharide alginate and the protein albumin on the attachment and colonization of Bacillus sp., Chlorel ...
DOI:
10.1016/j.bej.2018.08.006

14. Alkaline flocculation of Phaeodactylum tricornutum induced by brucite and calcite

Author:
Dries Vandamme; Philip I. Pohl; Annelies Beuckels; Imogen Foubert; Patrick V. Brady; John C. Hewson; Koenraad Muylaert
Source:
Bioresource technology 2015 v.196 pp. 656-661
ISSN:
0960-8524
Subject:
Phaeodactylum tricornutum; biomass production; calcite; calcium; coagulation; flocculation; harvesting; magnesium; magnesium hydroxide; microalgae; models; neutralization; pH; salts; seawater; zeta potential
Abstract:
... Alkaline flocculation holds great potential as a low-cost harvesting method for marine microalgae biomass production. Alkaline flocculation is induced by an increase in pH and is related to precipitation of calcium and magnesium salts. In this study, we used the diatom Phaeodactylum tricornutum as model organism to study alkaline flocculation of marine microalgae cultured in seawater medium. Flocc ...
DOI:
10.1016/j.biortech.2015.08.042

15. Alkaline phosphatase promoter as an efficient driving element for exogenic recombinant in the marine diatom Phaeodactylum tricornutum

Author:
Hung-Yun Lin; Shao-Chieh Yen; Po-Chih Kuo; Chih-Yu Chung; Kuan-Lin Yeh; Ching-Huei Huang; Jeng Chang; Han-Jia Lin
Source:
Algal research 2017 v.23 pp. 58-65
ISSN:
2211-9264
Subject:
Phaeodactylum tricornutum; algae; alkaline phosphatase; clones; fluorescence; gene induction; genes; genetically modified organisms; green fluorescent protein; industrial applications; open reading frames; phosphates; promoter regions; recombinant proteins
Abstract:
... A highly inducible promoter capable of actively expressing exogenous genes in diatoms is critical to further improving the utility of this organism as a low-cost platform for industrial applications. In this study, the functional promoter of alkaline phosphatase gene in Phaeodactylum tricornutum (PtAPase) was used to develop a novel vector. The pPhAP1-EGFP vector containing the putative promoter r ...
DOI:
10.1016/j.algal.2017.01.007

16. Allelochemical ethyl 2-methyl acetoacetate (EMA) induces oxidative damage and antioxidant responses in Phaeodactylum tricornutum

Author:
Cui-Yun Yang; Su-Jing Liu; Shi-Wei Zhou; Hui-Feng Wu; Jun-Bao Yu; Chuan-Hai Xia
Source:
Pesticide biochemistry and physiology 2011 v.100 no.1 pp. 93-103
ISSN:
0048-3575
Subject:
glutathione; cell growth; catalase; glutathione-disulfide reductase; glutathione transferase; exposure duration; reactive oxygen species; superoxide dismutase; glutathione peroxidase; Phaeodactylum tricornutum; antioxidant activity; oxidative stress; ascorbic acid
Abstract:
... Ethyl 2-methyl acetoacetate (EMA) is a novel allelochemical exhibiting inhibitory effects on the growth of marine unicellular alga Phaeodactylum tricornutum (P. tricornutum). Oxidative damage and antioxidant responses in P. tricornutum were investigated to elucidate the mechanism involved in EMA inhibition on algal growth. The increase in reactive oxygen species (ROS) levels and malondialdehyde (M ...
DOI:
10.1016/j.pestbp.2011.02.014

17. Allelochemical induces growth and photosynthesis inhibition, oxidative damage in marine diatom Phaeodactylum tricornutum

Author:
Cuiyun Yang; Jun Zhou; Sujing Liu; Ping Fan; Wenhai Wang; Chuanhai Xia
Source:
Journal of experimental marine biology and ecology 2013 v.444 pp. 16-23
ISSN:
0022-0981
Subject:
Phaeodactylum tricornutum; algal blooms; antioxidants; carotenoids; catalase; chlorophyll; flow cytometry; genes; glutathione; glutathione peroxidase; glutathione transferase; growth retardation; hydroquinone; membrane permeability; membrane potential; microalgae; mitochondrial membrane; photosynthesis; pigments; specific growth rate; superoxide dismutase
Abstract:
... Algal blooms have been occurring in many regions all over the world and allelochemical is considered as one of the important and promising algaecides to control algal blooms. In the present study, we investigated the effects of allelochemical hydroquinone (HQ) on growth, photosynthesis and other physiological levels of Phaeodactylum tricornutum (P. tricornutum). The results showed that HQ (above 3 ...
DOI:
10.1016/j.jembe.2013.03.005

18. Allosterically Regulated Unfolding of the A′α Helix Exposes the Dimerization Site of the Blue-Light-Sensing Aureochrome-LOV Domain

Author:
Herman Elena; Kottke Tilman
Source:
Biochemistry 2015 v.54 no.7 pp. 1484-1492
ISSN:
1520-4995
Subject:
Phaeodactylum tricornutum; algae; dimerization; gel chromatography; leucine zipper; oligomerization; spectroscopy; transcription factors
Abstract:
... Aureochromes have been shown to act as blue-light-regulated transcription factors in algae in the absence of phototropins. Aureochromes comprise a light-, oxygen-, or voltage-sensitive (LOV) domain as a sensory module binding the flavin chromophore and a basic region leucine zipper (bZIP) domain as an effector. The domain arrangement in aureochromes with an N-terminal effector is inversed to other ...
DOI:
10.1021/bi501509z

19. Anaerobic digestibility of Scenedesmus obliquus and Phaeodactylum tricornutum under mesophilic and thermophilic conditions

Author:
Carlos Zamalloa; Nico Boon; Willy Verstraete
Source:
Applied energy 2012 v.92 no. pp. 733-738
ISSN:
0306-2619
Subject:
Phaeodactylum tricornutum; Scenedesmus obliquus; biogas; biomass; digestibility; digestion; freshwater; hydrolysis; methane; microalgae; sludge
Abstract:
... Two types of non-axenic algal cultures, one dominated by the freshwater microalgae Scenedesmus obliquus and the other by the marine microalgae Phaeodactylum tricornutum, were cultivated in two types of simple photobioreactor systems. The production rates, expressed on dry matter (DM) basis, were in the order of 0.12 and 0.18g DML⁻¹d⁻¹ for S. obliquus and P. tricornutum respectively. The biogas pot ...
DOI:
10.1016/j.apenergy.2011.08.017

20. Anaerobic digestibility of marine microalgae Phaeodactylum tricornutum in a lab-scale anaerobic membrane bioreactor

Author:
Carlos Zamalloa; Jo De Vrieze; Nico Boon; Willy Verstraete
Source:
Applied microbiology and biotechnology 2012 v.93 no.2 pp. 859-869
ISSN:
0175-7598
Subject:
Methanosaeta; Methanosarcina; Phaeodactylum tricornutum; ammonium nitrogen; biogas; biomass; chemical oxygen demand; digestibility; digestion; effluents; liquid fertilizers; microalgae; microbial communities; organic fertilizers; organic matter; particulates; phosphates; polymerase chain reaction; resource management; sludge; species diversity; upflow anaerobic sludge blanket reactor
Abstract:
... The biomass of industrially grown Phaeodactylum tricornutum was subjected in a novel way to bio-methanation at 33°C, i.e., in an anaerobic membrane bioreactor (AnMBR) at a hydraulic retention time of 2.5 days, at solid retention times of 20 to 10 days and at loading rates in the range of 2.6–5.9 g biomass-COD L−1 day−1 with membrane fluxes ranging from 1 to 0.8 L m−2 h−1. The total COD recovered a ...
DOI:
10.1007/s00253-011-3624-5
PubMed:
22005739

21. Analysis of UV irradiation-induced cell settling of an oleaginous diatom, Fistulifera solaris, for efficient biomass recovery

Author:
Atsushi Arakaki; Takuya Matsumoto; Nobumitsu Shimura; Yoshiaki Maeda; Tomoko Yoshino; Mitsufumi Matsumoto; David Kisailus; Tsuyoshi Tanaka
Source:
Algal research 2020 v.47 pp. 101834
ISSN:
2211-9264
Subject:
Chlamydomonas reinhardtii; Phaeodactylum tricornutum; biomass; cell culture; energy; harvesting; light intensity; lipids; microalgae; polysaccharides; scanning electron microscopy; sugar content; ultraviolet radiation; wavelengths
Abstract:
... This study investigates UV irradiation-induced cell settling, followed by cell aggregation, of the oleaginous diatom Fistulifera solaris. Cell settling was observed after 24 h of cultivation following UV irradiation. The highest cell settling rate was obtained at a light intensity of 10 mJ/cm². The cell settling was induced by irradiating with UV (254 nm), but was ineffective with light of other w ...
DOI:
10.1016/j.algal.2020.101834

22. Analysis of the Proteome of the Marine Diatom Phaeodactylum tricornutum Exposed to Aluminum Providing Insights into Aluminum Toxicity Mechanisms

Author:
Xie Jun; Bai Xiaocui; Lavoie Michel; Lu Haiping; Fan Xiaoji; Pan Xiangliang; Fu Zhengwei; Qian Haifeng
Source:
Environmental Science & Technology 2015 v.49 no.18 pp. 11182-11190
ISSN:
1520-5851
Subject:
NADP (coenzyme); Phaeodactylum tricornutum; adenosine triphosphate; aluminum; aquatic food webs; carbon; cell growth; electron transfer; energy; glycolysis; lipid peroxidation; models; oxidative stress; pentose phosphate cycle; photosynthesis; phytoplankton; proteins; proteome; proteomics; reactive oxygen species; signal transduction; stress response; thylakoids; toxicity; transcriptomics
Abstract:
... Trace aluminum (Al) concentrations can be toxic to marine phytoplankton, the basis of the marine food web, but the fundamental Al toxicity and detoxification mechanisms at the molecular levels are poorly understood. Using an array of proteomic, transcriptomic, and biochemical techniques, we describe in detail the cellular response of the model marine diatom Phaeodactylum tricornutum to a short-ter ...
DOI:
10.1021/acs.est.5b03272

23. Analyzing the pyrolysis kinetics of several microalgae species by various differential and integral isoconversional kinetic methods and the Distributed Activation Energy Model

Author:
Antonio Soria-Verdugo; Elke Goos; Nestor García-Hernando; Uwe Riedel
Source:
Algal research 2018 v.32 pp. 11-29
ISSN:
2211-9264
Subject:
Arthrospira platensis; Chlorella vulgaris; Isochrysis galbana; Nannochloropsis; Phaeodactylum tricornutum; activation energy; microalgae; models; pyrolysis; thermogravimetry
Abstract:
... The pyrolysis kinetics of the microalgae Chlorella vulgaris (CV), Isochrysis galbana (IG), Nannochloropsis gaditana (NG), Nannochloropsis limnetica (NL), Phaeodactylum tricornutum (PT), and Spirulina platensis (SP) were studied by non-isothermal thermogravimetric analysis conducted at nine different constant heating rates. The kinetic parameters of each microalgae species were calculated using sev ...
DOI:
10.1016/j.algal.2018.03.005

24. Anti-inflammatory effects of Phaeodactylum tricornutum extracts on human blood mononuclear cells and murine macrophages

Author:
Ulrike Neumann; Sandrine Louis; Andrea Gille; Felix Derwenskus; Ulrike Schmid-Staiger; Karlis Briviba; Stephan C. Bischoff
Source:
Journal of applied phycology 2018 v.30 no.5 pp. 2837-2846
ISSN:
0921-8971
Subject:
Phaeodactylum tricornutum; anti-inflammatory activity; carotenoids; cell lines; cytotoxicity; dose response; enzymes; hexane; human nutrition; humans; inflammation; interleukin-1beta; interleukin-6; lipopolysaccharides; macrophages; messenger RNA; mice; microalgae; mononuclear leukocytes; nitric oxide; nutrients; omega-3 fatty acids; protein content; toxicity testing; transcription factor NF-kappa B; tumor necrosis factor-alpha; vitamins
Abstract:
... The microalgae Phaeodactylum tricornutum (PT) is known for its high content of omega-3 fatty acids, which are known to attenuate inflammation. Additionally, this microalga contains other nutrients such as carbohydrates, vitamins, proteins, and carotenoids and therefore could be of interest for animal and human nutrition. Here, we investigated the effects of hexane, ethanolic, and aqueous extracts ...
DOI:
10.1007/s10811-017-1352-7

25. Antifouling microfiltration strategies to harvest microalgae for biofuel

Author:
Sergio D. Ríos; Joan Salvadó; Xavier Farriol; Carles Torras
Source:
Bioresource technology 2012 v.119 no. pp. 406-418
ISSN:
0960-8524
Subject:
Chaetoceros calcitrans; Phaeodactylum tricornutum; biodiesel; carbon dioxide; feedstocks; fouling; harvesting; lipids; microalgae; microfiltration; microorganisms; permeability
Abstract:
... Microalgae are microorganisms that can fix CO₂ by using the energy from the sun and transforming it into organic molecules such as lipids (i.e. feedstock for biodiesel production). Microfiltration is a promising method to be considered in the harvesting step. In this study, two antifouling methods were tested in order to minimize permeability decrease over time, at low trans-membrane pressure filt ...
DOI:
10.1016/j.biortech.2012.05.044
PubMed:
22739578

26. Antifungal properties of aqueous microalgal extracts

Author:
Benjamin Schmid; Luísa Coelho; Peter S.C. Schulze; Hugo Pereira; Tamára Santos; Inês B. Maia; Mário Reis; João Varela
Source:
Bioresource technology reports 2022 v.18 pp. 101096
ISSN:
2589-014X
Subject:
Alternaria alternata; Athelia rolfsii; Botrytis cinerea; Chlorella vulgaris; Nannochloropsis; Phaeodactylum tricornutum; Scenedesmus obliquus; Spirulina; Thanatephorus cucumeris; antifungal properties; food production; microalgae; mycelium; technology
Abstract:
... Microalgae are considered a promising source of eco-friendly antifungal agents that can potentially reduce the usage of synthetic fungicides. Hence, properties of aqueous extracts from Nannochloropsis sp., Phaeodactylum tricornutum, Scenedesmus obliquus, Chlorella vulgaris and Spirulina sp. were investigated in vitro regarding their antagonistic activity towards the phytopathogenic fungi Sclerotiu ...
DOI:
10.1016/j.biteb.2022.101096

27. Antioxidant and innate immunity of Danio rerio against Edwardsiella tarda in response to diets including three kinds of marine microalgae

Author:
Jianhua Fan; Qiuwen Bao; Ke Ma; Xiaofei Li; Jing Jia; Haizhen Wu
Source:
Algal research 2022 v.64 pp. 102689
ISSN:
2211-9264
Subject:
Danio rerio; Dunaliella salina; Edwardsiella tarda; Isochrysis galbana; Phaeodactylum tricornutum; antioxidants; aquaculture; carotenoids; catalase; chlorophyll; cytokines; docosahexaenoic acid; fatty acid composition; freshwater fish; glutathione peroxidase; innate immunity; microalgae; nutritive value; research; sustainable development; vaccines
Abstract:
... Disease is one of the most critical factors restricting the green and sustainable development of aquaculture. Microalgae, serving as excellent aquatic bait with high nutritional value, can strengthen the immune protection of aquatic organisms. The purpose of this study is to select superior marine microalgae to as feed additives that can defend against pathogens to a certain extent. In this study, ...
DOI:
10.1016/j.algal.2022.102689

28. Antioxidant capacities of fucoxanthin-producing algae as influenced by their carotenoid and phenolic contents

Author:
Su Chern Foo; Fatimah Md. Yusoff; Maznah Ismail; Mahiran Basri; Sook Kun Yau; Nicholas M.H. Khong; Kim Wei Chan; Mahdi Ebrahimi
Source:
Journal of biotechnology 2017 v.241 pp. 175-183
ISSN:
0168-1656
Subject:
Chaetoceros calcitrans; Isochrysis galbana; Phaeodactylum tricornutum; Saccharina japonica; Skeletonema costatum; antioxidant activity; antioxidants; bioactive compounds; carotenoids; fatty acid composition; macroalgae; microalgae; phenolic acids; regression analysis
Abstract:
... Natural antioxidants from sustainable sources are favoured to accommodate worldwide antioxidant demand. In addition to bioprospecting for natural and sustainable antioxidant sources, this study aimed to investigate the relationship between the bioactives (i.e. carotenoid and phenolic acids) and the antioxidant capacities in fucoxanthin‐producing algae. Total carotenoid, phenolic acid, fucoxanthin ...
DOI:
10.1016/j.jbiotec.2016.11.026

29. Antioxidant capacity and immunomodulatory effects of a chrysolaminarin-enriched extract in Senegalese sole

Author:
Carlos Carballo; Evangelia G. Chronopoulou; Sofia Letsiou; Claudia Maya; Nikolaos E. Labrou; Carlos Infante; Deborah M. Power; Manuel Manchado
Source:
Fish & shellfish immunology 2018 v.82 pp. 1-8
ISSN:
1050-4648
Subject:
2,2-diphenyl-1-picrylhydrazyl; Phaeodactylum tricornutum; Solea senegalensis; antimicrobial peptides; antioxidant activity; antioxidants; aquaculture; beta-glucans; bioactive compounds; coconut oil; cytotoxicity; fibroblasts; gene expression regulation; genes; humans; immunomodulation; immunostimulants; inflammation; innate immunity; intestines; juveniles; kidneys; messenger RNA; microalgae; mortality; shellfish; sole; spleen; toxicity testing
Abstract:
... The microalgae are an important source of bioactive molecules including β-glucans that can be used as immunostimulants in aquaculture. In the present study, the antioxidant capacity, cytotoxicity and immunomodulatory activity of a chrysolaminarin-enriched extract obtained from the diatom Phaeodactylum tricornutum was evaluated. The extract showed a higher total antioxidant activity as determined b ...
DOI:
10.1016/j.fsi.2018.07.052

30. Antioxidant potential of microalgae in relation to their phenolic and carotenoid content

Author:
Koen Goiris; Koenraad Muylaert; Ilse Fraeye; Imogen Foubert; Jos De Brabanter; Luc De Cooman
Source:
Journal of applied phycology 2012 v.24 no.6 pp. 1477-1486
ISSN:
0921-8971
Subject:
Botryococcus; Chlorella vulgaris; Ettlia oleoabundans; Isochrysis; Phaeodactylum tricornutum; Tetraselmis suecica; acetates; antioxidant activity; antioxidants; carotenoids; ethanol; foods; fractionation; hexane; microalgae; phenolic compounds; scientists
Abstract:
... In the past decades, food scientists have been searching for natural alternatives to replace synthetic antioxidants. In order to evaluate the potential of microalgae as new source of safe antioxidants, 32 microalgal biomass samples were screened for their antioxidant capacity using three antioxidant assays, and both total phenolic content and carotenoid content were measured. Microalgae were extra ...
DOI:
10.1007/s10811-012-9804-6

31. Antioxidant properties and lipid composition of selected microalgae

Author:
Arjun H. Banskota; Sandra Sperker; Roumiana Stefanova; Patrick J. McGinn; Stephen J. B. O’Leary
Source:
Journal of applied phycology 2019 v.31 no.1 pp. 309-318
ISSN:
0921-8971
Subject:
2,2-diphenyl-1-picrylhydrazyl; Ettlia oleoabundans; Nannochloropsis; Phaeodactylum tricornutum; Porphyridium; Scenedesmus obliquus; Tetraselmis chuii; beta-carotene; biomass; dose response; fatty acid composition; freeze drying; hydrophilicity; lipid content; lipophilicity; lutein; methanol; microalgae; oxygen radical absorbance capacity; polyunsaturated fatty acids; regression analysis; zeaxanthin
Abstract:
... Marine and freshwater microalgae were evaluated for their antioxidant properties and lipid composition. Both lipophilic (L) and hydrophilic (H) oxygen radical absorbance capacity (ORAC) values were measured. Among the tested microalgae, the marine microalga Nannochloropsis granulata showed the highest total ORAC value at 6948 μmol TE (100 g)⁻¹, followed by the freshwater species Neochloris oleoabu ...
DOI:
10.1007/s10811-018-1523-1

32. Apoptotic anticancer activity of a novel fatty alcohol ester isolated from cultured marine diatom, Phaeodactylum tricornutum

Author:
Kalpa W. Samarakoon; Ju-Young Ko; Ji-Hyeok Lee; O-Nam Kwon; Sung-Woo Kim; You-Jin Jeon
Source:
Journal of functional foods 2014 v.6 pp. 231-240
ISSN:
1756-4646
Subject:
DNA; Phaeodactylum tricornutum; antineoplastic activity; apoptosis; caspase-3; cell growth; dose response; fatty alcohols; humans; inhibitory concentration 50; leukemia; lung neoplasms; melanoma; mice; neoplasm cells; pro-apoptotic proteins; protein synthesis; screening
Abstract:
... A novel fatty alcohol ester; nonyl 8-acetoxy-6-methyloctanoate (NAMO) was identified among the five isolated compounds from cultured marine diatom, Phaeodactylum tricornutum Bohlin. The anticancer effects of NAMO were examined through screening of three different cancer cell lines including a human promyelocytic leukemia (HL-60), a human lung carcinoma (A549) and a mouse melanoma (B16F10). A stron ...
DOI:
10.1016/j.jff.2013.10.011

33. Apparent nutrient and fatty acid digestibilities of microbial raw materials for rainbow trout (Oncorhynchus mykiss) with comparison to conventional ingredients

Author:
Hüseyin Sevgili; Soner Sezen; Adil Yılayaz; Özgür Aktaş; Faruk Pak; Inga M. Aasen; Kjell Inge Reitan; Michael Sandmann; Sascha Rohn; Gamze Turan; Mahir Kanyılmaz
Source:
Algal research 2019 v.42 pp. 101592
ISSN:
2211-9264
Subject:
Nannochloropsis; Oncorhynchus mykiss; Phaeodactylum tricornutum; aquaculture; cell walls; corn gluten meal; diet; digestibility; docosahexaenoic acid; eicosapentaenoic acid; fish meal; fish oils; ingredients; microalgae; omega-3 fatty acids; organic matter; raw materials; soybean meal; tanks; wheat gluten; whole wheat flour
Abstract:
... Determination of apparent digestibility coefficients (ADC) of ingredients has a central importance in formulation of aquaculture diets. Heterotrophic and phototrophic grown microalgae are considered as one of the best eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA) as well as protein alternatives for fish oil and fish meal (FM) to sustain further growth in aquaculture production. This ...
DOI:
10.1016/j.algal.2019.101592

34. Architecture of modified silica resin coatings with various micro/nano patterns for fouling resistance: microstructure and antifouling performance

Author:
Zifei Chen; Wenjie Zhao; Mengting Mo; Chengxu Zhou; Gang Liu; Zhixiang Zeng; Xuedong Wu; Qunji Xue
Source:
RSC advances 2015 v.5 no.118 pp. 97862-97873
ISSN:
2046-2069
Subject:
Chlorella; Fourier transform infrared spectroscopy; Nitzschia closterium; Phaeodactylum tricornutum; abrasives; coatings; contact angle; fouling; microalgae; microstructure; silica; silicone; wettability
Abstract:
... As an environmentally friendly antifouling strategy, a series of textured modified silicone surfaces with different textures, shapes and surface roughnesses were fabricated by mimicking the microstructures of abrasive paper via a simple replication method. The physical and chemical properties of the as-prepared coatings were systematically characterized by FT-IR spectroscopy, SEM and contact angle ...
DOI:
10.1039/c5ra17179b

35. Architecture of the light-harvesting apparatus of the eustigmatophyte alga Nannochloropsis oceanica

Author:
Radek Litvín; David Bína; Miroslava Herbstová; Zdenko Gardian
Source:
Photosynthesis research 2016 v.130 no.1-3 pp. 137-150
ISSN:
0166-8595
Subject:
Chlorophyta; Nannochloropsis; Phaeodactylum tricornutum; Rhodophyta; algae; light harvesting complex; phylogeny; proteomics; spectroscopy
Abstract:
... We present proteomic, spectroscopic, and phylogenetic analysis of light-harvesting protein (Lhc) function in oleaginous Nannochloropsis oceanica (Eustigmatophyta, Stramenopila). N. oceanica utilizes Lhcs of multiple classes: Lhcr-type proteins (related to red algae LHCI), Lhcv (VCP) proteins (violaxanthin-containing Lhcs related to Lhcf/FCP proteins of diatoms), Lhcx proteins (related to Lhcx/LhcS ...
DOI:
10.1007/s11120-016-0234-1

36. Are the primary characteristics of polystyrene nanoplastics responsible for toxicity and ad/absorption in the marine diatom Phaeodactylum tricornutum?

Author:
Marta Sendra; Eleonora Staffieri; María Pilar Yeste; Ignacio Moreno-Garrido; José Manuel Gatica; Ilaria Corsi; Julián Blasco
Source:
Environmental pollution 2019 v.249 pp. 610-619
ISSN:
0269-7491
Subject:
DNA damage; Phaeodactylum tricornutum; absorption; adsorption; biomarkers; cell membranes; chlorophyll; coasts; culture media; fluorescence; microalgae; mitochondria; nanoplastics; oxidative stress; photosynthesis; polystyrenes; population growth; stress response; surface area; toxicity; washing
Abstract:
... Nowadays, the occurrence of a large volume of plastic litter in oceanic and coastal zones has increased concern about its impacts on marine organisms. The degradation of plastic polymers leads to the formation of smaller fragments at both micro and nano scale (<5 mm and <1 μm respectively). Nanoplastics (NPs), due to their smaller size and high specific surface area can establish colloidal interac ...
DOI:
10.1016/j.envpol.2019.03.047

37. Arginine-fed cultures generates triacylglycerol by triggering nitrogen starvation responses during robust growth in Chlamydomonas

Author:
Jacob Munz; Yuan Xiong; Jaoon Young Hwan Kim; Young Joon Sung; Seungbeom Seo; Ran Ha Hong; Thamali Kariyawasam; Nolan Shelley; Jenny Lee; Sang Jun Sim; EonSeon Jin; Jae-Hyeok Lee
Source:
Algal research 2020 v.46 pp. 101782
ISSN:
2211-9264
Subject:
Chlamydomonas reinhardtii; Phaeodactylum tricornutum; arginine; biodiesel; carbon sequestration; droplets; fatty acid composition; gametogenesis; genes; microalgae; monounsaturated fatty acids; nitrogen; photosynthesis; starvation; triacylglycerols
Abstract:
... Under nitrogen (N) starvation, certain microalgae increase carbon storage in the form of lipid droplets while also downregulating photosynthesis and eventually terminating growth. To improve lipid yield, we asked whether lipid droplets and N starvation responses can be induced without limiting growth or photosynthesis. In the chlorophyte Chlamydomonas reinhardtii, N starvation induces gametogenesi ...
DOI:
10.1016/j.algal.2019.101782

38. Artemia nauplii enriched with archaea Halorubrum increased survival and challenge tolerance of Litopenaeus vannamei postlarvae

Author:
Wei Xie; Yingchao Ma; Beini Ren; Meirong Gao; Liying Sui
Source:
Aquaculture 2021 v.533 pp. 736087
ISSN:
0044-8486
Subject:
Archaea; Artemia; Litopenaeus vannamei; Phaeodactylum tricornutum; ammonia; antioxidant activity; beta-carotene; bioactive compounds; cell membranes; culture media; dietary supplements; feed additives; food industry; hepatopancreas; larviculture; lycopene; malondialdehyde; microalgae; nauplii; osmotic stress; polyunsaturated fatty acids; postlarvae; salinity; salt tolerance; shrimp; stress tolerance
Abstract:
... The red archaea contain carotenoids in their cell membrane, including lycopene, β-carotene and bacterioruberin, etc. Bacterioruberin is a novel bioactive compound, and is considered potential feed additives in food industry and aquaculture. In this study, the carotenoids containing archaea were applied in aquaculture for the first time. Halorubrum (Hrm) strain isolated from brine water was ferment ...
DOI:
10.1016/j.aquaculture.2020.736087

39. Artificial Intelligence Meets Marine Ecotoxicology: Applying Deep Learning to Bio-Optical Data from Marine Diatoms Exposed to Legacy and Emerging Contaminants

Author:
Nuno M. Rodrigues; João E. Batista; Pedro Mariano; Vanessa Fonseca; Bernardo Duarte; Sara Silva
Source:
Biology 2021 v.10 no.9 pp. -
ISSN:
2079-7737
Subject:
Phaeodactylum tricornutum; artificial intelligence; cosmetics; data collection; drugs; ecotoxicology; humans; mechanism of action; phytoplankton
Abstract:
... Over recent decades, the world has experienced the adverse consequences of uncontrolled development of multiple human activities. In recent years, the total production of chemicals has been composed of environmentally harmful compounds, the majority of which have significant environmental impacts. These emerging contaminants (ECs) include a wide range of man-made chemicals (such as pesticides, cos ...
DOI:
10.3390/biology10090932

40. Aspects of phosphorus physiology associated with phosphate-induced polar lipid remodelling in marine microalgae.

Author:
José Pedro Cañavate; Isabel Armada; Ismael Hachero-Cruzado
Source:
Journal of plant physiology 2017 v.214 pp. 28-38
ISSN:
0176-1617
Subject:
Chaetoceros gracilis; Chroomonas; Isochrysis galbana; Nannochloropsis; Phaeodactylum tricornutum; Rhodomonas; Tetraselmis suecica; alkaline phosphatase; betaine; lipid metabolism; microalgae; phosphates; phospholipids; phosphorus; physiological response; phytoplankton; taxonomy
Abstract:
... Marine microalgae exhibit a diversified phosphorus physiology and have also been recently found to show high inter-taxa variability in their phosphate induced-polar lipids’ remodelling. Identification of phosphorus physiology aspects that are more related to lipid remodelling can contribute to better understanding of such intricate phytoplankton lipid metabolism. Therefore, some aspects of phospho ...
DOI:
10.1016/j.jplph.2017.03.019

41. Assessing the toxicity of chemical compounds associated with marine land-based fish farms: The use of mini-scale microalgal toxicity tests

Author:
M. R. de Orte; C. Carballeira; I. G. Viana; A. Carballeira
Source:
Chemistry in ecology 2013 v.29 no.6 pp. 554-563
ISSN:
1029-0370
Subject:
Isochrysis galbana; Phaeodactylum tricornutum; amoxicillin; aquatic environment; cost effectiveness; disinfectants; environmental monitoring; fish culture; fish farms; flumequine; formaldehyde; marine fish; microalgae; oxytetracycline; risk assessment; streptomycin; sulfadiazine; toxicity; toxicity testing
Abstract:
... Many chemicals that are currently used in aquaculture have not been evaluated with regard to their specific effects on the aquatic environment. In the present study, the toxic effects of several chemicals associated with land-based marine fish farming activities were assessed using two species of marine microalgae (Phaeodactylum tricornutum and Isochrysis galbana). Mini-scale toxicity tests were p ...
DOI:
10.1080/02757540.2013.790381

42. Assessment and comparison of the properties of biodiesel synthesized from three different types of wet microalgal biomass

Author:
Katkam N. Gangadhar; Hugo Pereira; Hermínio P. Diogo; Rui M. Borges dos Santos; B. L. A. Prabhavathi Devi; R. B. N. Prasad; Luísa Custódio; F. Xavier Malcata; João Varela; Luísa Barreira
Source:
Journal of applied phycology 2016 v.28 no.3 pp. 1571-1578
ISSN:
0921-8971
Subject:
Nannochloropsis; Phaeodactylum tricornutum; Tetraselmis; biodiesel; biomass production; calorimetry; combustion; diesel fuel; fatty acid methyl esters; feedstocks; glycerol; heat; lipid composition; microalgae; polyunsaturated fatty acids; pour point; viscosity
Abstract:
... In recent years, microalgae-based carbon-neutral biofuels (i.e., biodiesel) have gained considerable interest due to high growth rate and higher lipid productivity of microalgae during the whole year, delivering continuous biomass production as compared to vegetable-based feedstocks. Therefore, biodiesel was synthesized from three different microalgal species, namely Tetraselmis sp. (Chlorophyta) ...
DOI:
10.1007/s10811-015-0683-5

43. Assessment of metal pollution in the Lambro Creek (Italy)

Author:
Bijay Gurung; Marco Race; Massimiliano Fabbricino; Dana Komínková; Giovanni Libralato; Antonietta Siciliano; Marco Guida
Source:
Ecotoxicology and environmental safety 2018 v.148 pp. 754-762
ISSN:
0147-6513
Subject:
Daphnia magna; Phaeodactylum tricornutum; Selenastrum capricornutum; Vibrio fischeri; biogeochemical cycles; bioluminescence; chromium; copper; growth retardation; leaching; lead; nickel; pH; risk; saline water; sediment contamination; sediments; streams; toxicity; toxicity testing; zinc; Italy
Abstract:
... This study assessed the effect of metal pollution in the Lambro Creek (Southern Italy). Water, sediment and biota were collected at six sampling sites (June) for metal concentration assessment (Cr, Cu, Ni, Pb and Zn). Sequential extraction was performed to determine the distribution of metals in different geochemical sediment fractions. The influence of pH and leaching time on the release of metal ...
DOI:
10.1016/j.ecoenv.2017.11.041

44. Association of triacylglyceride content and transcript abundance of genes involving in lipid synthesis of nitrogen deficient Phaeodactylum tricornutum

Author:
Lin Zhang; Jichang Han; Guanpin Yang; Baohua Zhu; Kehou Pan
Source:
Chinese journal of oceanology and limnology 2014 v.32 no.2 pp. 397-402
ISSN:
0254-4059
Subject:
Phaeodactylum tricornutum; biodiesel; correlation; feedstocks; genes; genetic improvement; messenger RNA; microalgae; nitrogen; quantitative polymerase chain reaction; triacylglycerols
Abstract:
... Phaeodactylum tricornutum is a diatom that is rich in lipids. Recently, it has received much attention as a feedstock for biodiesel production. Nitrogen deficiency is widely known to increase the content of neutral lipids (mainly triacylglycerides, or TAGs) of microalgae, including P. tricornutum, but the mechanism is unclear. In this study, we deciphered the correlations between TAG content and n ...
DOI:
10.1007/s00343-014-3173-8

45. Attachment between heterotrophic bacteria and microalgae influences symbiotic microscale interactions

Author:
Ty J. Samo; Jeffrey A. Kimbrel; Daniel J. Nilson; Jennifer Pett‐Ridge; Peter K. Weber; Xavier Mayali
Source:
Environmental microbiology 2018 v.20 no.12 pp. 4385-4400
ISSN:
1462-2912
Subject:
Haliscomenobacter; Nannochloropsis salina; Phaeodactylum tricornutum; autotrophs; bacteria; bacterial adhesion; carbon; carbon dioxide fixation; engineering; heterotrophs; image analysis; isotope labeling; mass spectrometry; microalgae; mutualism; phylogeny; stable isotopes
Abstract:
... The surface and surroundings of microalgal cells (phycosphere) are critical interaction zones but have been difficult to functionally interrogate due to methodological limitations. We examined effects of phycosphere‐associated bacteria for two biofuel‐relevant microalgal species (Phaeodactylum tricornutum and Nannochloropsis salina) using stable isotope tracing and high spatial resolution mass spe ...
DOI:
10.1111/1462-2920.14357

46. Bacteria may induce the secretion of mucin‐like proteins by the diatom Phaeodactylum tricornutum

Author:
Matthias T. Buhmann; Birgit Schulze; Alexander Förderer; David Schleheck; Peter G. Kroth
Source:
Journal of phycology 2016 v.52 no.3 pp. 463-474
ISSN:
0022-3646
Subject:
Phaeodactylum tricornutum; Roseobacter; algae; bacteria; biofilm; bioinformatics; carbon; cell communication; gene expression; mucins; plankton; prediction; proteome; secretion
Abstract:
... Benthic diatoms live in photoautotrophic/heterotrophic biofilm communities embedded in a matrix of secreted extracellular polymeric substances. Closely associated bacteria influence their growth, aggregation, and secretion of exopolymers. We have studied a diatom/bacteria model community, in which a marine Roseobacter strain is able to grow with secreted diatom exopolymers as a sole source of carb ...
DOI:
10.1111/jpy.12409

47. Balancing the energy flow from captured light to biomass under fluctuating light conditions

Author:
H. Wagner; T. Jakob; C. Wilhelm
Source:
new phytologist 2006 v.169 no.1 pp. 95-108
ISSN:
0028-646X
Subject:
algae; energy transfer; plant adaptation; photosynthesis; Phaeodactylum tricornutum; Chlorella vulgaris; biomass; electron transport chain; light
Abstract:
... • The balance of energy flow from light absorption into biomass was investigated under simulated natural light conditions in the diatom Phaeodactylum tricornutum and the green alga Chlorella vulgaris. • The energy balance was quantified by comparative analysis of carbon accumulation in the new biomass with photosynthetic electron transport rates per absorbed quantum, measured both by fluorescence ...
DOI:
10.1111/j.1469-8137.2005.01550.x
PubMed:
16390422

48. Biochemical composition of three algal species proposed as food for captive freshwater mussels

Author:
Catherine M. Gatenby; David M. Orcutt; Daniel A. Kreeger; Bruce C. Parker; Vannessa A. Jones; Richard J. Neves
Source:
Journal of applied phycology 2003 v.15 no.1 pp. 1-11
ISSN:
0921-8971
Subject:
Bracteacoccus; Ettlia oleoabundans; Phaeodactylum tricornutum; developmental stages; diet; fatty acid composition; freshwater; lipid content; monounsaturated fatty acids; mussels; polyunsaturated fatty acids; rearing; sterols
Abstract:
... To identify potential diets for rearing captive freshwater mussels, the protein, carbohydrate (CHO), and lipid contents of two green algae, Neochloris oleoabundans, Bracteacoccus grandis, and one diatom, Phaeodactylum tricornutum, were compared at different growth stages. The fatty acid and sterol composition were also identified. Protein was greatest (55–70%) for all species at late log growth st ...
DOI:
10.1023/A:1022929423011

49. Biofuels from microalgae: Photoconversion efficiency during lipid accumulation

Author:
Robert Dillschneider; Christian Steinweg; Rosa Rosello-Sastre; Clemens Posten
Source:
Bioresource technology 2013 v.142 pp. 647-654
ISSN:
0960-8524
Subject:
Phaeodactylum tricornutum; biofuels; combustion; culture media; energy; enthalpy; lipids; microalgae; nitrates; nitrogen
Abstract:
... The accumulation of storage lipids in oleaginous microalgae can be induced by a targeted nutrient limitation. Experiments with varying concentrations of nitrate in the culture medium showed differing volumetric productivities of Phaeodactylum tricornutum in batch experiments. This was partially attributable to the differentiated ability of cultures to absorb light. Apart from that, it was demonstr ...
DOI:
10.1016/j.biortech.2013.05.088
PubMed:
23777817

50. Biological effects of TiO2 and CeO2 nanoparticles on the growth, photosynthetic activity, and cellular components of a marine diatom Phaeodactylum tricornutum

Author:
Xiang-Yuan Deng; Jie Cheng; Xiao-Li Hu; Ling Wang; Da Li; Kun Gao
Source:
Science of the total environment 2017 v.575 pp. 87-96
ISSN:
0048-9697
Subject:
Phaeodactylum tricornutum; aquatic organisms; bioactive properties; ceric oxide; chlorophyll; growth retardation; malondialdehyde; nanoparticles; peroxidase; photosynthesis; protein content; sugar content; superoxide dismutase; titanium dioxide
Abstract:
... It is very important to have a good understanding of the biological effects of nanoparticles (NPs) on marine diatoms. In this study, the physiological and biochemical responses of a marine diatom Phaeodactylum tricornutum to titanium dioxide NPs (nano-TiO2) and cerium oxide NPs (nano-CeO2) were compared and evaluated using 96h growth tests in a batch-culture system. At 96h of exposure, the growth ...
DOI:
10.1016/j.scitotenv.2016.10.003