The relation of light-induced slow absorbancy and scattering changes about 520 nm and structure of chloroplast thylakoids?A theoretical investigation

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Abstract
A theoretical analysis is made on the relation between light-induced thylakoid shrinkage, slow light-induced absorbancy changes about 520 nm, and light-induced scattering changes observed at 90°, which occur in isolated chloroplasts. A simple model of the thylakoids stacks (grana) is assumed and by a mathematical formalism a correlation of these effects is shown. The light minus dark difference spectrum is shown to peak around 520 nm, a fact that confirms earlier suggestions that this difference band is due to the combined effects of the selective dispersion and optical-conformational changes in the grana.

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