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Evidence that the long-lifetime photointermediate of s-rhodopsin is a receptor for negative phototaxis in Halobacterium halobium.

Abstract：

:The effect of blue background light on behavioral response of Halobacterium halobium to step-like stimulation with green-orange attractant light was examined. The results strongly support the previously proposed hypothesis that a long-lifetime photointermediate of s-rhodopsin is the photoreceptor for repellent light: the step-like increase in green-orange light was convertible from attractant stimulus to repellent one, when the cells were constantly illuminated with blue light. No difference of the threshold intensity of the blue background light was observed between the mutant strain that lacks both bacteriorhodopsin and halorhodopsin and the wild type strain, suggesting that the two light-driven ion pumps are not participant in sensing attractant light.

journal_name

Biochem Biophys Res Commun

journal_title

Biochemical and biophysical research communications

authors

Takahashi T,Mochizuki Y,Kamo N,Kobatake Y

doi

10.1016/s0006-291x(85)80131-5

subject

Has Abstract

pub_date

1985-02-28 00:00:00

pages

99-105

issue

1

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(85)80131-5

journal_volume

127

pub_type

杂志文章

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