A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Inhibitory effects of polycyclic aromatic hydrocarbons (PAHs) on photosynthetic performance are not related to their aromaticity
Tekijät: Anjana Jajoo, Nageswara Rao Mekala, Rupal Singh Tomar, Michele Grieco, Mikko Tikkanen, Eva-Mari Aro
Kustantaja: ELSEVIER SCIENCE SA
Kustannuspaikka: LAUSANNE; PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Julkaisuvuosi: 2014
Journal: Journal of Photochemistry and Photobiology B: Biology
Tietokannassa oleva lehden nimi: JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
Lehden akronyymi: J PHOTOCH PHOTOBIO B
Vuosikerta: 137
Aloitussivu: 151
Lopetussivu: 155
Sivujen määrä: 5
ISSN: 1011-1344
DOI: https://doi.org/10.1016/j.jphotobiol.2014.03.011
Polycyclic aromatic hydrocarbons (PAHs) are very toxic and highly persistent environmental pollutants which accumulate in soil and affect growth of the plants adversely. This study aims to investigate inhibitory effects of 3 major PAH particularly on photosynthetic processes in Arabidopsis thaliana grown in soil treated with PAH. The 3 PAH chosen differ from each other in aromaticity (number of rings) comprising their structure (2 rings: naphthalene, 3 rings: anthracene and 4 rings: pyrene). Several growth parameters and Chlorophyll a fluorescence was monitored in PAH treated plants. BN-PAGe analysis was done in order to get information about change in the protein conformation. PAH treatment led to increased value of Fo which collaborated with increase in the amount of free LHC as seen through EN-Page analysis. Thus PAH were found to inhibit PS II photochemistry and caused distinct change in pigment composition. However the results led us to infer that 3-ring anthracence is more inhibitory as compared to 2-ring naphthalene and 4-ring pyrene. This indicates that aromaticity of PAH is unrelated to their response on photosynthetic processes. (C) 2014 Elsevier B.V. All rights reserved.