Time- and media-dependent secondary carotenoid accumulation inHaematococcus pluvialis

2008 ◽  
Vol 3 (9-10) ◽  
pp. 1232-1244 ◽  
Author(s):  
Claudia Grewe ◽  
Carola Griehl
Keyword(s):  
Carotenoid Accumulation ◽  
Secondary Carotenoid

scholarly journals Secondary carotenoid accumulation in flagellates of the green algaHaematococcus lacustris

1997 ◽  
Vol 32 (4) ◽  
pp. 387-392 ◽  
Author(s):  
Kay Grünewald ◽  
Christoph Hagen ◽  
Wolfram Braune
Keyword(s):  
Carotenoid Accumulation ◽  
Secondary Carotenoid

scholarly journals Tetraedron minimum, First Reported Member of Hydrodictyaceae to Accumulate Secondary Carotenoids

Life ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 107
Author(s):  
Philipp Doppler ◽  
Christoph Kornpointner ◽  
Heidi Halbwirth ◽  
Daniel Remias ◽  
Oliver Spadiut
Keyword(s):  
Unsaturated Fatty Acids ◽  
Nitrogen Starvation ◽  
Pigment Composition ◽  
Terrestrial Habitat ◽  
Carotenoid Accumulation ◽  
The Family ◽  
Carotenoid Composition ◽  
Secondary Carotenoids ◽  
Secondary Carotenoid

We isolated a novel strain of the microalga Tetraedron minimum in Iceland from a terrestrial habitat. During long-term cultivation, a dish culture turned orange, indicating the presence of secondary pigments. Thus, we characterized T. minimum for growth and possible carotenoid production in different inorganic media. In a lab-scale photobioreactor, we confirmed that nitrogen starvation in combination with salt stress triggered a secondary carotenoid accumulation. The development of the pigment composition and the antioxidant capacity of the extracts was analyzed throughout the cultivations. The final secondary carotenoid composition was, on average, 61.1% astaxanthin and 38.9% adonixanthin. Moreover, the cells accumulated approx. 83.1% unsaturated fatty acids. This work presents the first report of the formation of secondary carotenoids within the family Hydrodictyaceae (Sphaeropleales, Chlorophyta).

ВПЛИВ ДЖЕРЕЛ АЗОТНОГО ЖИВЛЕННЯ НА СИНТЕЗ КАРОТИНОЇДІВ ДЕЯКИМИ ШТАМАМИ БАЗИДІОМІЦЕТІВ

2014 ◽  
Vol 4 (01) ◽  
pp. 22
Author(s):  
A. K. Veligodska ◽  
O. V. Fedotov ◽  
A. S. Petreeva
Keyword(s):  
Culture Filtrate ◽  
Nutrient Medium ◽  
Culture Fluid ◽  
Carotenoid Content ◽  
Nitrogen Compounds ◽  
Total Carotenoid ◽  
Carotenoid Accumulation ◽  
Total Carotenoid Content ◽  
Peptone Medium ◽  
Acetone Extracts

<p>The influence of certain nitrogen compounds - components of glucose-peptone medium (GPM) on the accumulation of carotenoids by some strains was investigated by surface cultivating basidiomycetes. The total carotenoid content was set in acetone extracts of mycological material spectrophotometrically and calculated using the Vetshteyn formula.</p> <p>As the nitrogen-containing components used GPM with 9 compounds, such as peptone, DL-valine, L-asparagine, DL-serine, DL-tyrosine, L-proline, L-alanine, urea, NaNO<sub>3</sub>. The effect on the accumulation of specific compounds both in the mycelium and in the culture fluid of carotenoids by culturing certain strains of Basidiomycetes was identified.</p> <p>Adding to standard glucose-peptone medium peptone at 5 g/l causes an increase of carotenoid accumulation by strain <em>L. sulphureus</em> Ls-08, and in a concentration of 4 g/l by strains of <em>F. hepatica </em>Fh-18 and <em>F. fomentarius</em> Ff-1201.</p> <p>In order to increase the accumulation of carotenoids in the mycelium  we suggested to make a standard glucose-peptone medium with proline or valine for cultivating of <em>L. sulphureus</em> Ls- 08 strain; alanine for <em>F. fomentarius</em> Ff-1201 strain; proline, asparagine and serine - for strain Fh-18 of <em>F. hepatica</em>. The results can be implemented in further optimization of the composition of the nutrient medium for culturing strains of Basidiomycetes wich producing carotenoids.</p> <p><em>Keywords: nitrogen-containing substances, Basidiomycetes, mycelium</em><em>,</em><em> culture filtrate, carotenoids</em></p>

scholarly journals Transcriptome Analysis Reveals a Promotion of Carotenoid Production by Copper Ions in Recombinant Saccharomyces cerevisiae

2021 ◽  
Vol 9 (2) ◽  
pp. 233
Author(s):  
Buli Su ◽  
Anzhang Li ◽  
Ming-Rong Deng ◽  
Honghui Zhu
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Transcriptome Analysis ◽  
Gene Expression Analysis ◽  
Target Genes ◽  
Copper Ions ◽  
Carotenoid Production ◽  
Carotenoid Accumulation ◽  
Nutritional Components ◽  
Differential Gene ◽  
First Time

We previously constructed a Saccharomyces cerevisiae carotenoid producer BL03-D-4 which produced much more carotenoid in YPM (modified YPD) media than YPD media. In this study, the impacts of nutritional components on carotenoid accumulation of BL03-D-4 were investigated. When using YPM media, the carotenoid yield was increased 10-fold compared to using the YPD media. To elucidate the hidden mechanism, a transcriptome analysis was performed and showed that 464 genes changed significantly in YPM media. Furthermore, inspired by the differential gene expression analysis which indicated that ADY2, HES1, and CUP1 showed the most remarkable changes, we found that the improvement of carotenoid accumulation in YPM media was mainly due to the copper ions, since supplementation of 0.08 mM CuSO4 in YPD media could increase carotenoid yield 9.2-fold. Reverse engineering of target genes was performed and carotenoid yield could be increased 6.4-fold in YPD media through overexpression of ACE1. The present study revealed for the first time the prominent promotion of carotenoid yield by copper ions in engineered S. cerevisiae and provided a new target ACE1 for genetic engineering of S. cerevisiae for the bioproduction of carotenoids.

scholarly journals Solar UV−B Radiation Influences Carotenoid Accumulation of Tomato Fruit through Both Ethylene-Dependent and -Independent Mechanisms

2009 ◽  
Vol 57 (22) ◽  
pp. 10979-10989 ◽  
Author(s):  
Elisa Becatti ◽  
Katia Petroni ◽  
Deborah Giuntini ◽  
Antonella Castagna ◽  
Valentina Calvenzani ◽  
...  
Keyword(s):  
Tomato Fruit ◽  
Carotenoid Accumulation ◽  
Solar Uv

Effects of exogenous glucose on carotenoid accumulation in tomato leaves

2008 ◽  
Vol 134 (2) ◽  
pp. 246-256 ◽  
Author(s):  
Anne Mortain-Bertrand ◽  
Linda Stammitti ◽  
Nadège Telef ◽  
Patrice Colardelle ◽  
Renaud Brouquisse ◽  
...  
Keyword(s):  
Carotenoid Accumulation ◽  
Exogenous Glucose

105 Astacene is a Major Secondary Carotenoid In The Green ALGA Palmellococcus Miniatus

2003 ◽  
Vol 39 (s1) ◽  
pp. 36-36 ◽  
Author(s):  
G. X. Liu ◽  
Q. Hu ◽  
M. Sommerfeld ◽  
Z. Y. Hu
Keyword(s):  
Green Alga ◽  
Secondary Carotenoid
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