Abstract
Microalgae offer great potential for the production of biofuel, but high photosynthetic activity is demanded for the practical realisation of microalgal biofuels. To this end, it is essential to evaluate the photosynthetic activity of single microalgal cells in a heterogeneous population. In this study, we present a method to monitor the photosynthetic activity of microalgae (in particular Euglena gracilis, a microalgal species of unicellular, photosynthetic, flagellate protists as our model organism) at single-cell resolution by Raman spectroscopy with deuterium from deuterium oxide (D2O) as a tracking probe. Specifically, we replaced H2O in culture media with D2O up to a concentration of 20 % without disturbing the growth rate of E. gracilis cells and evaluated C−D bond formation as a consequence of photosynthetic reactions by Raman spectroscopy. We used the probe to monitor the kinetics of the C−D bond formation in E. gracilis cells by incubating them in D2O media under light irradiation. Furthermore, we demonstrated Raman microscopy imaging of each single E. gracilis cell to discriminate deuterated cells from normal cells. Our results hold great promise for Raman-based screening of E. gracilis and potentially other microalgae with high photosynthetic activity by using D2O as a tracking probe.
| Original language | English |
|---|---|
| Pages (from-to) | 2063-2068 |
| Number of pages | 6 |
| Journal | ChemBioChem |
| Volume | 18 |
| Issue number | 20 |
| DOIs | |
| Publication status | Published - Oct 18 2017 |
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All Science Journal Classification (ASJC) codes
- Biochemistry
- Molecular Medicine
- Molecular Biology
- Organic Chemistry
Cite this
Monitoring Photosynthetic Activity in Microalgal Cells by Raman Spectroscopy with Deuterium Oxide as a Tracking Probe. / Yonamine, Yusuke; Suzuki, Yuta; Ito, Takuro; Miura, Yoshiko; Goda, Keisuke; Ozeki, Yasuyuki; Hoshino, Yu.
In: ChemBioChem, Vol. 18, No. 20, 18.10.2017, p. 2063-2068.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Monitoring Photosynthetic Activity in Microalgal Cells by Raman Spectroscopy with Deuterium Oxide as a Tracking Probe
AU - Yonamine, Yusuke
AU - Suzuki, Yuta
AU - Ito, Takuro
AU - Miura, Yoshiko
AU - Goda, Keisuke
AU - Ozeki, Yasuyuki
AU - Hoshino, Yu
PY - 2017/10/18
Y1 - 2017/10/18
N2 - Microalgae offer great potential for the production of biofuel, but high photosynthetic activity is demanded for the practical realisation of microalgal biofuels. To this end, it is essential to evaluate the photosynthetic activity of single microalgal cells in a heterogeneous population. In this study, we present a method to monitor the photosynthetic activity of microalgae (in particular Euglena gracilis, a microalgal species of unicellular, photosynthetic, flagellate protists as our model organism) at single-cell resolution by Raman spectroscopy with deuterium from deuterium oxide (D2O) as a tracking probe. Specifically, we replaced H2O in culture media with D2O up to a concentration of 20 % without disturbing the growth rate of E. gracilis cells and evaluated C−D bond formation as a consequence of photosynthetic reactions by Raman spectroscopy. We used the probe to monitor the kinetics of the C−D bond formation in E. gracilis cells by incubating them in D2O media under light irradiation. Furthermore, we demonstrated Raman microscopy imaging of each single E. gracilis cell to discriminate deuterated cells from normal cells. Our results hold great promise for Raman-based screening of E. gracilis and potentially other microalgae with high photosynthetic activity by using D2O as a tracking probe.
AB - Microalgae offer great potential for the production of biofuel, but high photosynthetic activity is demanded for the practical realisation of microalgal biofuels. To this end, it is essential to evaluate the photosynthetic activity of single microalgal cells in a heterogeneous population. In this study, we present a method to monitor the photosynthetic activity of microalgae (in particular Euglena gracilis, a microalgal species of unicellular, photosynthetic, flagellate protists as our model organism) at single-cell resolution by Raman spectroscopy with deuterium from deuterium oxide (D2O) as a tracking probe. Specifically, we replaced H2O in culture media with D2O up to a concentration of 20 % without disturbing the growth rate of E. gracilis cells and evaluated C−D bond formation as a consequence of photosynthetic reactions by Raman spectroscopy. We used the probe to monitor the kinetics of the C−D bond formation in E. gracilis cells by incubating them in D2O media under light irradiation. Furthermore, we demonstrated Raman microscopy imaging of each single E. gracilis cell to discriminate deuterated cells from normal cells. Our results hold great promise for Raman-based screening of E. gracilis and potentially other microalgae with high photosynthetic activity by using D2O as a tracking probe.
UR - http://www.scopus.com/inward/record.url?scp=85029748484&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85029748484&partnerID=8YFLogxK
U2 - 10.1002/cbic.201700314
DO - 10.1002/cbic.201700314
M3 - Article
C2 - 28805994
AN - SCOPUS:85029748484
VL - 18
SP - 2063
EP - 2068
JO - ChemBioChem
JF - ChemBioChem
SN - 1439-4227
IS - 20
ER -