Nitrogen and sulfur deprivation differentiate lipid accumulation targets of chlamydomonas reinhardtii
Author
Cakmak, T.
Angun P.
Ozkan, A.D.
Cakmak, Z.
Olmez, T.T.
Tekinay, T.
Date
2012Source Title
Bioengineered
Print ISSN
19491018
Volume
3
Issue
6
Pages
343 - 346
Language
English
Type
ArticleItem Usage Stats
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Abstract
Nitrogen (N) and sulfur (S) have inter-related and distinct impacts on microalgal metabolism; with N starvation having previously been reported to induce elevated levels of the biodiesel feedstock material triacylglycerol (TAG), while S deprivation is extensively studied for its effects on biohydrogen production in microalgae.1,2 We have previously demonstrated that N- and S-starved cells of Chlamydomonas reinhardtii display different metabolic trends, suggesting that different response mechanisms exist to compensate for the absence of those two elements.3 We used C. reinhardtii CC-124 mt(-) and CC-125 mt(+) strains to test possible metabolic changes related to TAG accumulation in response to N and S deprivation, considering that gamete differentiation in this organism is mainly regulated by N.4 Our findings contribute to the understanding of microalgal response to element deprivation and potential use of element deprivation for biodiesel feedstock production using microalgae, but much remains to be elucidated on the precise contribution of both N and S starvation on microalgal metabolism. © 2012 Landes Bioscience.
Keywords
BiodieselChlamydomonas reinhardtii
Nitrogen
Sulfur
Triacylglycerol
biodiesel
nitrogen
sulfur
triacylglycerol
article
Chlamydomonas reinhardtii
lipid storage
microalga
nonhuman
starvation
Biofuels
Carotenoids
Chlamydomonas reinhardtii
Chlorophyll
Lipid Metabolism
Microalgae
Microscopy, Electron, Transmission
Microscopy, Fluorescence
Mutation
Nitrogen
Photosynthesis
Plant Proteins
Starch
Sulfur
Triglycerides
Chlamydomonas reinhardtii