Photobiochemical changes in Chlorellag120 culture during trophic conversion (metabolic pathway shift) from heterotrophic to phototrophic growth regime
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F20%3A43901429" target="_blank" >RIV/60076658:12220/20:43901429 - isvavai.cz</a>
Alternative codes found
RIV/61388971:_____/20:00533409 RIV/60076658:12310/20:43901429
Result on the web
<a href="https://link.springer.com/article/10.1007/s10811-020-02137-w" target="_blank" >https://link.springer.com/article/10.1007/s10811-020-02137-w</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10811-020-02137-w" target="_blank" >10.1007/s10811-020-02137-w</a>
Alternative languages
Result language
angličtina
Original language name
Photobiochemical changes in Chlorellag120 culture during trophic conversion (metabolic pathway shift) from heterotrophic to phototrophic growth regime
Original language description
Physiological and photobiochemical changes and growth in the heterotrophic strainChlorella vulgarisg120 were studied during trophic conversion from heterotrophic to phototrophic growth regime. After the exposure of theChlorellag120 culture to light, it revealed a significant activity of the electron transport (450-700 mu mol e(-) m(-2) s(-1)as measured by chlorophyll fluorescence) and high PSII photochemical yieldF(v)/F(m)between 0.7 and 0.8. Fast fluorescence induction kinetics showed that PSII electron acceptors in the plastoquinone pool remained partly oxidized, indicating no downregulation of PSII electron transport. The data further revealed that high photobiochemical activity is lost in futile (protective) processes of non-photochemical quenching and respiration which indicate that surplus energy is dissipated in these processes. Pigment analysis showed low chlorophyll content - 0.35-1.15% as compared with exclusively phototrophic strainChlorella vulgarisR-117. Nevertheless, the carotenoid content in g120 was relatively high - 0.20-0.33% of dry weight which resulted in a considerably high ratio of carotenoid/chlorophyll - 0.31-0.44. This strain probably does not possess the fully competent photosynthetic apparatus and can only partially adapt to phototrophy. We show that the heterotrophically grown g120 strain can undergo metabolic shift from heterotrophic to phototrophic growth regime. It might be an interesting strain from biotechnological point of view as a source of carotenoids, especially lutein.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10617 - Marine biology, freshwater biology, limnology
Result continuities
Project
<a href="/en/project/LO1416" target="_blank" >LO1416: Algatech plus</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Applied Phycology
ISSN
0921-8971
e-ISSN
—
Volume of the periodical
32
Issue of the periodical within the volume
5
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
12
Pages from-to
2807-2818
UT code for WoS article
000539524100001
EID of the result in the Scopus database
2-s2.0-85086317714