Počet záznamů: 1  

Sequential accumulation of starch and lipid induced by sulfur deficiency in Chlorella and Parachlorella species

  1. 1.
    0422914 - MBÚ 2014 RIV NL eng J - Článek v odborném periodiku
    Mizuno, Y. - Sato, A. - Watanabe, K. - Hirata, A. - Takeshita, T. - Shuhei, O. - Sato, N. - Zachleder, Vilém - Tsuzuki, M. - Kawano, S.
    Sequential accumulation of starch and lipid induced by sulfur deficiency in Chlorella and Parachlorella species.
    Bioresource Technology. Roč. 129, FEB 2013 (2013), s. 150-155. ISSN 0960-8524. E-ISSN 1873-2976
    Institucionální podpora: RVO:61388971
    Klíčová slova: Sulfur deficiency * Chlorella spp * Parachlorella kessleri
    Kód oboru RIV: EE - Mikrobiologie, virologie
    Impakt faktor: 5.039, rok: 2013

    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
    Trvalý link: http://hdl.handle.net/11104/0229035

     
     
Počet záznamů: 1  

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