正构烷烃链长改变了狄氏剂放线菌 DQ12-45-1b 生物表面活性剂的产生和细胞表面活性。
n-Alkane chain length alters Dietzia sp. strain DQ12-45-1b biosurfactant production and cell surface activity.
机构信息
Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing, People's Republic of China.
出版信息
Appl Environ Microbiol. 2013 Jan;79(1):400-2. doi: 10.1128/AEM.02497-12. Epub 2012 Oct 26.
Abstract
Upon growth on n-hexadecane (C(16)), n-tetracosane (C(24)), and n-hexatriacontane (C(36)), Dietzia sp. strain DQ12-45-1b could produce different glycolipids, phospholipids, and lipopeptides. Interestingly, cultivation with C(36) increased cell surface hydrophobic activity, which attenuated the negative effect of the decline of the emulsification activity. These results suggest that the mechanisms of biosurfactant production and cell surface hydrophobicity are dependent upon the chain lengths of the n-alkanes used as carbon sources.
摘要
在正十六烷（C(16)）、正二十四烷（C(24)）和正三十六烷（C(36)）上生长时，狄氏副球菌菌株 DQ12-45-1b 可以产生不同的糖脂、磷脂和脂肽。有趣的是，用 C(36)培养会增加细胞表面疏水性活性，从而减弱乳化活性下降的负面影响。这些结果表明，生物表面活性剂产生和细胞表面疏水性的机制取决于用作碳源的正烷烃的链长。
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