A highly CO2-tolerant diatom, Thalassiosira weissflogii H1, enriched from coastal sea, and its fatty acid composition

Ishida, Yūzaburō; Hiragushi, Norihiro; Kitaguchi, Hirotaka; Mitsutani, Atsushi; Nagai, Satoshi; Yoshimura, Minoru

doi:10.1046/j.1444-2906.2000.00105.x

Cited by 35 publications

(19 citation statements)

References 15 publications

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“…The percentage of EPA in T. weissflogii found by this study was about twice that reported by Ishida et al (2000), while that of DHA was comparable. In their study, EPA and DHA were in the range of 10-14% and 2-5%, respectively, compared to *23 and *5% in this study.…”

Section: Nutritional Values Of Diatomssupporting

confidence: 50%

“…In their study, EPA and DHA were in the range of 10-14% and 2-5%, respectively, compared to *23 and *5% in this study. The levels of EPA and DHA per cell were, however, comparable to those of Ishida et al (2000). Total fatty acids in T. weissflogii in the present study (45.7 pg cell -1 ) were also much higher than those of their study (1.2 pg cell -1 ).…”

Section: Nutritional Values Of Diatomssupporting

confidence: 48%

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Enhancement of survival and metamorphosis rates of Penaeus monodon larvae by feeding with the diatom Thalassiosira weissflogii

et al. 2010

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The purpose of this study was to compare the performance of two species of diatoms, Thalassiosira weissflogii and Chaetoceros gracilis, in the larviculture of the black tiger shrimp Penaeus monodon. Shrimp larvae were fed with either C. gracilis, T. weissflogii, or a combination of the two species of diatoms. The larvae fed solely with T. weissflogii or a combination of the two types of diatom had significantly higher survival rates and faster metamorphosis than those fed solely with C. gracilis. The numbers of diatom cells consumed by larvae during 3-h periods were determined, revealing that larvae consumed significantly higher numbers of C. gracilis than T. weissflogii. However, when the protein, total fatty acid, and polyunsaturated fatty acid content of the two species of diatom are compared, significantly higher amounts of each are found in T. weissflogii. Converting the number of diatom cells consumed into equivalent protein, total fatty acid, eicosopentaenoic acid, and decosahexaenoic acid reveals that larvae fed with T. weissflogii received significantly higher amounts of all the nutrients, compared to those consuming C. gracilis. The results showed an advantage of feeding T. weissflogii to C. gracilis in enhancing survival and metamorphosis in P. monodon larvae.

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Section: Nutritional Values Of Diatomssupporting

confidence: 50%

Section: Nutritional Values Of Diatomssupporting

confidence: 48%

Enhancement of survival and metamorphosis rates of Penaeus monodon larvae by feeding with the diatom Thalassiosira weissflogii

et al. 2010

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“…T. weissflogii grows successfully in culture, and has been used extensively in a wide variety of controlled laboratory experiments (e.g. , Costello & Chisholm 1981, Murphy & Cowles 1997, Vrieling et al 1999, Ishida et al 2000, Strzepek & Price 2000, Montagnes & Franklin 2001, Parker et al 2004, Laney et al 2005, Roberts et al 2007, Halac et al 2010, Katayama et al 2012. Primarily, these studies investigated the response of T. weissflogii to one environmental stressor under otherwise optimal growth conditions.…”

Section: Introductionmentioning

confidence: 99%

Ocean acidification as one of multiple stressors: growth response of Thalassiosira weissflogii (diatom) under temperature and light stress

Passow¹

2015

Mar. Ecol. Prog. Ser.

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Future shifts in phytoplankton composition and productivity are anticipated given that continuing changes are expected in environmental conditions such as temperature, the partial pressure of CO 2 (pCO 2 ) and light climate, all of which regulate phytoplankton communities and their physiology through bottom-up control. Culture experiments revealed that future (elevated) pCO 2 had no effect on Thalassiosira weissflogii in the absence of environmental stressors, whereas growth rates drastically decreased under future pCO 2 when cells were grown under light and temperature stress. Reduction in growth rates and a smaller decline in cellular photosynthesis under high pCO 2 were associated with 2-to 3-fold increases in the production of transparent exopolymer particles (TEP) and in the cell quotas of organic carbon, as well as a similar decrease in the C:chl a ratios. Results suggest that under light-and temperature-stressed growth, elevated pCO 2 led to increased energy requirements, which were fulfilled by increased light harvesting capabilities that permitted photosynthesis of acclimatized cells to remain relatively high. This was combined with the inability of these cells to acclimatize their growth rate to sub-optimal temperatures. Consequently, growth rate was low and decoupled from photosynthesis, and this decoupling led to large cell sizes and high excretion rates in future pCO 2 treatments compared to ambient treatments when growth temperature and light were sub-optimal. Under optimal growth conditions, the increased energy demands required to re-equilibrate the disturbed acid-base balance in future pCO 2 treatments were likely mediated by a variety of physiological acclimatization mechanisms, individually too small to show a statistically detectable response in terms of growth rate, photosynthesis, pigment concentration, or excretion.

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“…Green algae and diatoms dominate the natural microalgal community in the Baltic Sea during spring and early summer [50,51]. Both in marine and freshwater, these two algal groups have a broad CO 2 tolerance (14-40%) while optimal CO 2 for growth is 10-15% [52,53].…”

Section: Potential For Using Flue Gas For Algal Cultivationmentioning

confidence: 99%

Baltic Sea microalgae transform cement flue gas into valuable biomass

et al. 2015

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We show high feasibility of using cement industrial flue gas as CO 2 source for microalgal cultivation. The toxicity of cement flue gas (12-15% CO 2 ) on algal biomass production and composition (lipids, proteins, carbohydrates) was tested using monocultures (Tetraselmis sp., green algae, Skeletonema marinoi, diatom) and natural brackish communities. The performance of a natural microalgal community dominated by spring diatoms was compared to a highly productive diatom monoculture S. marinoi fed with flue gas or air-CO 2 mixture. Flue gas was not toxic to any of the microalgae tested. Instead we show high quality of microalgal biomass (lipids 20-30% DW, proteins 20-28% DW, carbohydrates 15-30% DW) and high production when cultivated with flue gas addition compared to CO 2 -air. Brackish Baltic Sea microalgal communities performed equally or better in terms of biomass quality and production than documented monocultures of diatom and green algae, often used in algal research and development. Hence, we conclude that microalgae should be included in biological solutions to transform waste into renewable resources in coastal waters.

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A highly CO2-tolerant diatom, Thalassiosira weissflogii H1, enriched from coastal sea, and its fatty acid composition

Cited by 35 publications

References 15 publications

Enhancement of survival and metamorphosis rates of Penaeus monodon larvae by feeding with the diatom Thalassiosira weissflogii

Enhancement of survival and metamorphosis rates of Penaeus monodon larvae by feeding with the diatom Thalassiosira weissflogii

Ocean acidification as one of multiple stressors: growth response of Thalassiosira weissflogii (diatom) under temperature and light stress

Baltic Sea microalgae transform cement flue gas into valuable biomass

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