Bacteriorhodopsin induces a light-scattering change in Halobacterium halobium.
Keyword(s):
When suspensions of Halobacterium halobium are exposed to bright light, the light-scattering properties of the bacteria change. This light-scattering response can produce a transmission decrease of about 1% throughout the red and near-infrared region. The action spectrum for the light-scattering response appropriately matches the absorption spectrum of bacteriorhodopsin. The response is eliminated by cyanide p-trifluoro-methoxyphenylhydrazone, a proton ionophore, and by triphenylmethylphosphonium, a membrane permanent cation. A mild hypertonic shock induces a similar light-scattering change, suggesting that bright light causes the bacteria to shrink about 1% in volume, thereby producing the light-scattering response.
2013 ◽
Vol 21
(5)
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pp. 359-373
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Keyword(s):
1992 ◽
Vol 47
(7-8)
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pp. 813-818
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The cavity-enhanced absorption spectrum of NH3 in the near-infrared region between 6850 and 7000cm−1
2008 ◽
Vol 109
(6)
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pp. 1004-1015
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Keyword(s):
2019 ◽
Vol 32
(5)
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pp. 536-542