FNR-mediated regulation of bioluminescence and anaerobic respiration in the light-organ symbiont Vibrio fischeri.
FNR-mediated regulation of bioluminescence and anaerobic respiration in the light-organ symbiont Vibrio fischeri.
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DOI:
10.1111/j.1574-6968.2010.01938.x
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发表时间:
2010-05
影响因子:
2.1
通讯作者:
Stabb EV
中科院分区:
文献类型:
--
作者:
Septer AN;Bose JL;Dunn AK;Stabb EV
Vibrio fischeri induces both anaerobic respiration and bioluminescence during symbiotic infection. In many bacteria, the oxygen-sensitive regulator FNR activates anaerobic respiration, and a preliminary study using the light-generating lux genes from V. fischeri MJ1 cloned in Escherichia coli suggested that FNR stimulates bioluminescence. To test for FNR-mediated regulation of bioluminescence and anaerobic respiration in V. fischeri, we generated fnr mutants of V. fischeri strains MJ1 and ES114. In both strains, FNR was required for normal fumarate- and nitrate-dependent respiration. However, contrary to the report in transgenic E. coli, FNR mediated repression of lux. ArcA represses bioluminescence, and ParcA-lacZ reporters showed reduced expression in fnr mutants, suggesting a possible indirect effect of FNR on bioluminescence via arcA. Finally, the fnr mutant of ES114 was not impaired in colonization of its host squid, Euprymna scolopes. This study extends characterization of FNR to the Vibrionaceae and underscores the importance of studying lux regulation in its native background.
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影响因子:
3.2
作者:
Adin, Dawn M.;Engle, Jacquelyn T.;Stabb, Eric V.
通讯作者:
Stabb, Eric V.
影响因子:
3.2
作者:
Blake, T;Barnard, A;Green, J
通讯作者:
Green, J
DOI:
10.1073/pnas.94.12.6087
发表时间:
1997-06-10
影响因子:
11.1
作者:
Khoroshilova, N;Popescu, C;Kiley, PJ
通讯作者:
Kiley, PJ
影响因子:
3.2
作者:
HERRERO, M;DELORENZO, V;TIMMIS, KN
通讯作者:
TIMMIS, KN
影响因子:
3.2
作者:
KILEY, PJ;REZNIKOFF, WS
通讯作者:
REZNIKOFF, WS