当前位置： SCI文献检索 > FEMS MICROBIOLOGY LETTERS期刊下所有文献 > The adaptation and resistance of Clostridium aminophilum F to the butyrivibriocin-like substance of Butyrivibrio fibrisolvens JL5 and monensin.

The adaptation and resistance of Clostridium aminophilum F to the butyrivibriocin-like substance of Butyrivibrio fibrisolvens JL5 and monensin.

Abstract：

:When the amino acid-fermenting bacterium Clostridium aminophilum F was inoculated into media containing 1 microM monensin or a bacteriocin-like inhibitory substance (BLIS) from Butyrivibrio fibrisolvens JL5, the cultures lagged and growth was not observed for more than 12 h. The monensin- and BLIS-treated cultures eventually grew rapidly and did not lag a second time. Because cross-resistance could not be demonstrated, it appeared that the adaptation was specific. Non-adapted cells that were incubated with monensin lost their ability to produce ammonia from amino acids, and ATP, intracellular potassium, and electrical potential (DeltaPsi) were lower than untreated cells. Monensin-adapted cells regained their ability to produce ammonia, and intracellular potassium and DeltaPsi increased, but ATP was still 40% lower than untreated cells. When non-adapted cells were treated with the BLIS, ammonia production did not decline. Non-adapted cells were agglutinated by lysozyme, but in each case, adapted cells were not agglutinated. Adapted cells had more cellular polysaccharide and bound less of either inhibitor. Based on these results, it appears that the adapted cells had altered cell wall characteristics that prevented the binding of either monensin or the B. fibrisolvens JL5 BLIS.

journal_name

FEMS Microbiol Lett

journal_title

FEMS microbiology letters

authors

Rychlik JL,Russell JB

doi

10.1111/j.1574-6968.2002.tb11115.x

keywords:

subject

Has Abstract

pub_date

2002-03-19 00:00:00

pages

93-8

issue

1

eissn

0378-1097

issn

1574-6968

pii

S0378109702005104

journal_volume

209

pub_type

杂志文章

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