| RRC ID |
21732
|
| Author |
Mizuno Y, Sato A, Watanabe K, Hirata A, Takeshita T, Ota S, Sato N, Zachleder V, Tsuzuki M, Kawano S.
|
| Title |
Sequential accumulation of starch and lipid induced by sulfur deficiency in Chlorella and Parachlorella species.
|
| Journal |
Bioresour Technol
|
| Abstract |
The influence of sulfur deficiency on biomass production was analyzed in the four Chlorellaceae species, Chlorella vulgaris, Chlorella sorokiniana, Chlorella lobophora, and Parachlorella kessleri. Culturing under sulfur-deficient conditions promoted transient accumulation of starch followed by a steady increase in lipid storage. Transmission electron microscopy indicated an increase and decrease in starch granules and subsequent enlargement of lipid droplets under sulfur-deficient conditions. Chlorellaceae spp. accumulated 1.5-2.7-fold higher amounts of starch and 1.5-2.4-fold higher amounts of lipid under sulfur-deficient conditions than under sulfur-sufficient conditions. More than 75% of the fatty acids that accumulated in Chlorellaceae spp. under the sulfur-sufficient condition were unsaturated and culturing under sulfur-deficient conditions increased the saturated fatty acid content from 24.3% to 59.7% only in P. kessleri. These results indicate that the sequential accumulation of starch and lipid is a response to the sulfur depletion that commonly occurs in Chlorellaceae spp.
|
| Volume |
129
|
| Pages |
150-5
|
| Published |
2013-2-1
|
| DOI |
10.1016/j.biortech.2012.11.030
|
| PII |
S0960-8524(12)01704-X
|
| PMID |
23238344
|
| MeSH |
Bioreactors / microbiology*
Chlorella / classification*
Chlorella / metabolism*
Lipid Metabolism / physiology*
Species Specificity
Starch / isolation & purification
Starch / metabolism*
Sulfur / metabolism*
|
| IF |
7.539
|
| Times Cited |
53
|
|
WOS Category
|
BIOTECHNOLOGY & APPLIED MICROBIOLOGY
AGRICULTURAL ENGINEERING
ENERGY & FUELS
|
| Resource |
| Algae |
NIES-2169
NIES-2173 |
