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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제26권 제7호
- 발행연도
- 2016.1
- 수록면
- 1,190 - 1,197 (8page)
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초록· 키워드
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The acid response of Bifidobacterium longum subsp. longum BBMN68 has been studied in our previous study. The fab gene, which is supposed to be involved in membrane fatty acid biosynthesis, was demonstrated to be induced in acid response. In order to investigate the relationship between acid response and cell membrane fatty acid composition, the acid adaptation of BBMN68 was assessed and the membrane fatty acid composition at different adaptation conditions was identified. Indeed, the fatty acid composition was influenced by acid adaptation. Our results showed that the effective acid adaptations were accompanied with decrease in the unsaturated to saturated fatty acids ratio (UFA/SFA) and increase in cyclopropane fatty acid (CFA) content, which corresponded to previous studies. Moreover, both effective and non-effective acid adaptation conditions resulted in decrease in the C18:1 cis- 9/C18:1 trans-9 ratio, indicating that the C18:1 cis-9/C18:1 trans-9 ratio is associated with acid tolerance response but not with acid adaptation response. Taken together, this study indicated that the UFA/SFA and CFA content of BBMN68 were involved in acid adaptation and the C18:1 cis-9/C18:1 trans-9 ratio was involved in acid tolerance response.
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참고문헌 (25)
참고문헌 신청
Beal C / 2001 / Resistance to freezing and frozen storage of Streptococcus thermophilus is related to membrane fatty acid composition / J. Dairy Sci 84:2347~2356
Bender GR / 1987 / Membrane atpases and acid tolerance of Actinomyces viscosus and Lactobacillus casei / Appl. Environ. Microbiol 53:2124~2128
Brown JL / 1997 / Acid habituation of Escherichia coli and the potential role of cyclopropane fatty acids in low pH tolerance / Int. J. Food Microbiol 37:163~173
Chang YY / 1999 / Membrance cyclopropane fatty acid content is a major factor in acid resistance of Escherichia coli / Mol. Microbiol 33:249~259
Charteris WP / 1998 / Development and application of an in vitro methodology to determine the transit tolerance of potentially probiotic Lactobacillus and Bifidobacterium species in the upper human gastrointestinal tract / J. Appl. Microbiol 84:759~768
Bender GR / 1987 / Membrane atpases and acid tolerance of Actinomyces viscosus and Lactobacillus casei / Appl. Environ. Microbiol 53:2124~2128
Brown JL / 1997 / Acid habituation of Escherichia coli and the potential role of cyclopropane fatty acids in low pH tolerance / Int. J. Food Microbiol 37:163~173
Chang YY / 1999 / Membrance cyclopropane fatty acid content is a major factor in acid resistance of Escherichia coli / Mol. Microbiol 33:249~259
Charteris WP / 1998 / Development and application of an in vitro methodology to determine the transit tolerance of potentially probiotic Lactobacillus and Bifidobacterium species in the upper human gastrointestinal tract / J. Appl. Microbiol 84:759~768
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