pH-induced changes of the infrared absorption spectra of purple bacteria
Publication date
1957-10
Authors
Thomas, J.B.
Goedheer, J.C.
Komen, J.G.
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Document Type
Article
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Abstract
The pH dependence of the infrared absorption spectra of aqueous extracts from Chromatium strain D, Rhodopseudomonas spheroides, and Rhodospirillum rubrum strain 4 was studied.
Experiments on immediate as well as on long term influence of low pH on these spectra are described.
In the discussion it is concluded that an action of the bearer on the pigment is most probably an important factor in the causes which determine the location of the infrared absorption bands.