嗜盐古菌对有机溶剂的耐受性

Organic solvent tolerance of halophilic archaea.

作者信息

Usami Ron, Fukushima Tadamasa, Mizuki Toru, Inoue Akira, Yoshida Yasuhiko, Horikoshi Koki

机构信息

Department of Applied Chemistry, Faculty of Engineering, Toyo University, 2100 Kujirai, Kawagoe-shi, Saitama 350-8585, Japan.

出版信息

Biosci Biotechnol Biochem. 2003 Aug;67(8):1809-12. doi: 10.1271/bbb.67.1809.

DOI:10.1271/bbb.67.1809

PMID:12951519

Abstract

Organic solvent tolerance was tested in type strains of type species of the sixteen genera of Halobacteriaceae, the halophilic archaea. Most of the strains were observed to grow in the presence of hexylether (log Pow=5.1), but none grew in the presence of n-octane (log Pow=4.9) except Halogeometricum borinquense JCM 10706T and Halorubrum saccharovorum JCM 8865T. On the other hand, two strains, Haloarcula spp. OHF-1 and 2 isolated from a French solar salt were found to show stronger tolerance even to isooctane (log Pow=4.8). Growth of some strains was retarded by the presence of n-decane but reached to the same cell densities at late stationary phase. Final cell densities of some strains were greatly repressed by the presence of the solvent.

摘要

对嗜盐古菌盐杆菌科16个属模式种的模式菌株进行了有机溶剂耐受性测试。观察到大多数菌株能在己醚（log Pow = 5.1）存在的情况下生长，但除了波多黎各盐几何菌JCM 10706T和糖盐嗜盐碱红菌JCM 8865T外，没有菌株能在正辛烷（log Pow = 4.9）存在的情况下生长。另一方面，从法国日晒盐中分离出的两株盐弧菌属菌株OHF-1和2，甚至对异辛烷（log Pow = 4.8）表现出更强的耐受性。正癸烷的存在会使一些菌株的生长受到抑制，但在稳定期末期达到相同的细胞密度。某些菌株的最终细胞密度会因溶剂的存在而受到极大抑制。