Abstract
Previously, the best ways of inducing oil production by algae was to remove the nitrogen source in the medium or to provide a fixed, small amount of N and allowing cells to enter a state of N depletion. These conventional methods for achieving N starvation are time consuming and expensive; therefore an alternative method is needed. Here we show that the chemical inhibitor of nitrogen assimilation, methionine sulfoximine (MSX), can be successfully used to rapidly induce conditions similar to nitrogen starvation in Chlamydomonas reinhardtii. This resulted in a twofold increase in lipid content. In addition, the MSX-treated cells are photosynthetically more competent compared with the conventional method for inducing N starvation. Although MSX is not the ideal inhibitor to use in commercial algal lipid production because of its toxicity to animals, this work serves as a proof of the concept that inhibitors might be used to provide a simpler, cost- and time-effective chemical approach to induce conditions leading to enhanced lipid production.
| Original language | English |
|---|---|
| Pages (from-to) | 159-166 |
| Number of pages | 8 |
| Journal | Phycologia |
| Volume | 56 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2017 |
Keywords
- Algae
- Biofuels
- Lipids
- Methionine sulfoximine
- Nitrogen starvation
Cite this
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Use of a chemical inhibitor as an alternative approach to enhance lipid production in Chlamydomonas reinhardtii (Chlorophyceae). / Kamalanathan, Manoj; Gleadow, Roslyn; Beardall, John.
In: Phycologia, Vol. 56, No. 2, 2017, p. 159-166.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Use of a chemical inhibitor as an alternative approach to enhance lipid production in Chlamydomonas reinhardtii (Chlorophyceae)
AU - Kamalanathan, Manoj
AU - Gleadow, Roslyn
AU - Beardall, John
PY - 2017
Y1 - 2017
N2 - Previously, the best ways of inducing oil production by algae was to remove the nitrogen source in the medium or to provide a fixed, small amount of N and allowing cells to enter a state of N depletion. These conventional methods for achieving N starvation are time consuming and expensive; therefore an alternative method is needed. Here we show that the chemical inhibitor of nitrogen assimilation, methionine sulfoximine (MSX), can be successfully used to rapidly induce conditions similar to nitrogen starvation in Chlamydomonas reinhardtii. This resulted in a twofold increase in lipid content. In addition, the MSX-treated cells are photosynthetically more competent compared with the conventional method for inducing N starvation. Although MSX is not the ideal inhibitor to use in commercial algal lipid production because of its toxicity to animals, this work serves as a proof of the concept that inhibitors might be used to provide a simpler, cost- and time-effective chemical approach to induce conditions leading to enhanced lipid production.
AB - Previously, the best ways of inducing oil production by algae was to remove the nitrogen source in the medium or to provide a fixed, small amount of N and allowing cells to enter a state of N depletion. These conventional methods for achieving N starvation are time consuming and expensive; therefore an alternative method is needed. Here we show that the chemical inhibitor of nitrogen assimilation, methionine sulfoximine (MSX), can be successfully used to rapidly induce conditions similar to nitrogen starvation in Chlamydomonas reinhardtii. This resulted in a twofold increase in lipid content. In addition, the MSX-treated cells are photosynthetically more competent compared with the conventional method for inducing N starvation. Although MSX is not the ideal inhibitor to use in commercial algal lipid production because of its toxicity to animals, this work serves as a proof of the concept that inhibitors might be used to provide a simpler, cost- and time-effective chemical approach to induce conditions leading to enhanced lipid production.
KW - Algae
KW - Biofuels
KW - Lipids
KW - Methionine sulfoximine
KW - Nitrogen starvation
UR - http://www.scopus.com/inward/record.url?scp=85010618922&partnerID=8YFLogxK
U2 - 10.2216/16-49.1
DO - 10.2216/16-49.1
M3 - Article
AN - SCOPUS:85010618922
VL - 56
SP - 159
EP - 166
JO - Phycologia
JF - Phycologia
SN - 0031-8884
IS - 2
ER -