Chlorophyll bleaching by UV-irradiation has been studied by absorbance and fluorescence spectroscopy in extracts containing mixtures of photosynthetic pigments, in acetone and n-hexane solutions, and in aqueous thylakoid suspensions. Chlorophyll undergoes destruction (bleaching) accompanied by fluorescent transient formation obeying first-order kinetics. The bleaching is governed by UV-photon energy input, as well as by different chlorophyll molecular organizations in solvents of different polarities (in vitro), and in thylakoids (in situ). UV-C-induced bleaching of chlorophylls in thylakoids is probably caused by different mechanisms compared to UV-A- and UV-B-induced bleaching.
TY - JOUR
AU - Zvezdanović, Jelena
AU - Cvetic, Tijana
AU - Veljović-Jovanović, Sonja
AU - Marković, Dejan
PY - 2009
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/310
AB - Chlorophyll bleaching by UV-irradiation has been studied by absorbance and fluorescence spectroscopy in extracts containing mixtures of photosynthetic pigments, in acetone and n-hexane solutions, and in aqueous thylakoid suspensions. Chlorophyll undergoes destruction (bleaching) accompanied by fluorescent transient formation obeying first-order kinetics. The bleaching is governed by UV-photon energy input, as well as by different chlorophyll molecular organizations in solvents of different polarities (in vitro), and in thylakoids (in situ). UV-C-induced bleaching of chlorophylls in thylakoids is probably caused by different mechanisms compared to UV-A- and UV-B-induced bleaching.
PB - Pergamon-Elsevier Science Ltd, Oxford
T2 - Radiation Physics and Chemistry
T1 - Chlorophyll bleaching by UV-irradiation in vitro and in situ: Absorption and fluorescence studies
EP - 32
IS - 1
SP - 25
VL - 78
DO - 10.1016/j.radphyschem.2008.07.006
ER -
@article{
author = "Zvezdanović, Jelena and Cvetic, Tijana and Veljović-Jovanović, Sonja and Marković, Dejan",
year = "2009",
abstract = "Chlorophyll bleaching by UV-irradiation has been studied by absorbance and fluorescence spectroscopy in extracts containing mixtures of photosynthetic pigments, in acetone and n-hexane solutions, and in aqueous thylakoid suspensions. Chlorophyll undergoes destruction (bleaching) accompanied by fluorescent transient formation obeying first-order kinetics. The bleaching is governed by UV-photon energy input, as well as by different chlorophyll molecular organizations in solvents of different polarities (in vitro), and in thylakoids (in situ). UV-C-induced bleaching of chlorophylls in thylakoids is probably caused by different mechanisms compared to UV-A- and UV-B-induced bleaching.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Radiation Physics and Chemistry",
title = "Chlorophyll bleaching by UV-irradiation in vitro and in situ: Absorption and fluorescence studies",
pages = "32-25",
number = "1",
volume = "78",
doi = "10.1016/j.radphyschem.2008.07.006"
}
Zvezdanović, J., Cvetic, T., Veljović-Jovanović, S.,& Marković, D.. (2009). Chlorophyll bleaching by UV-irradiation in vitro and in situ: Absorption and fluorescence studies. in Radiation Physics and Chemistry
Pergamon-Elsevier Science Ltd, Oxford., 78(1), 25-32.
https://doi.org/10.1016/j.radphyschem.2008.07.006
Zvezdanović J, Cvetic T, Veljović-Jovanović S, Marković D. Chlorophyll bleaching by UV-irradiation in vitro and in situ: Absorption and fluorescence studies. in Radiation Physics and Chemistry. 2009;78(1):25-32.
doi:10.1016/j.radphyschem.2008.07.006 .
Zvezdanović, Jelena, Cvetic, Tijana, Veljović-Jovanović, Sonja, Marković, Dejan, "Chlorophyll bleaching by UV-irradiation in vitro and in situ: Absorption and fluorescence studies" in Radiation Physics and Chemistry, 78, no. 1 (2009):25-32,
https://doi.org/10.1016/j.radphyschem.2008.07.006 . .
