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Garlaschi FM, Zucchelli G, Jennings RC. Studies on light absorption and photochemical activity changes in chloroplast suspensions and leaves due to light scattering and light filtration across chloroplast and vegetation layers. Photosynth Res. 1989;20(3):207-20doi: 10.1007/BF00034065.
Garlaschi, F. M., Zucchelli, G., & Jennings, R. C. (1989). Studies on light absorption and photochemical activity changes in chloroplast suspensions and leaves due to light scattering and light filtration across chloroplast and vegetation layers. Photosynthesis research, 20(3), 207-20. https://doi.org/10.1007/BF00034065
Garlaschi, F M, et al. "Studies on light absorption and photochemical activity changes in chloroplast suspensions and leaves due to light scattering and light filtration across chloroplast and vegetation layers." Photosynthesis research vol. 20,3 (1989): 207-20. doi: https://doi.org/10.1007/BF00034065
Garlaschi FM, Zucchelli G, Jennings RC. Studies on light absorption and photochemical activity changes in chloroplast suspensions and leaves due to light scattering and light filtration across chloroplast and vegetation layers. Photosynth Res. 1989 Jun;20(3):207-20. doi: 10.1007/BF00034065. PMID: 24424434.
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Photosynth Res. 1989 Jun;20(3):207-20. doi: 10.1007/BF00034065.

Studies on light absorption and photochemical activity changes in chloroplast suspensions and leaves due to light scattering and light filtration across chloroplast and vegetation layers.

Photosynthesis research

F M Garlaschi, G Zucchelli, R C Jennings

Affiliations

  1. Centro C.N.R. Biologia Cellulare e Molecolare delle Piante, Dipartimento di Biologia, Universitá di Milano, via Celoria 26, 20133, Milano, Italy.

PMID: 24424434 DOI: 10.1007/BF00034065

Abstract

An experimental analysis is presented concerning the effect on relative light absorption by the two photosystems caused by (a) a highly light scattering environment (the "detour effect") and (b) light filtration across successive chloroplast layers (the "light attenuation effect"). Both suspensions of isolated chloroplasts and leaves were employed.It is concluded that within a single spinach leaf these phenomena are likely to lead to only rather small increases in relative photosystem I absorption and activity with respect to photosystem II and will thus not exert a significant effect on non cyclic electron transport. On the contrary when light is filtrated across successive vegetation layers (shade light) significant increases in the relative PSI absorption and activity may be encountered.It is determined that the "detour effect" in mature leaves from a variety of plants increases overall photosynthetically useful light absorption by 35-40%.

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