Interaction of sea salt and atmospheric pollution alters the OJIP fluorescence transient in the lichen Pseudevernia furfuracea (L.) Zopf. (March 2015)

• Record Type: Journal Article
• Authors: Malaspina, Paola; Giordani, Paolo; Pastorino, Giulia; Modenesi, Paolo; Mariotti, Mauro Giorgio
• Is Part Of: Ecological indicators. Volume 50(2015)
• Page Start: 251
• Page End: 257
• Publication Date: 2015-03
• Subjects: HU hinterland unpolluted -- HP hinterland polluted -- CU coastal unpolluted -- CP coastal polluted -- Chl a chlorophyll a -- F0 minimum fluorescence intensity -- FM maximal fluorescence intensity -- J and I intermediate steps in the Chl a fluorescence rise (OJIP) appearing between F0 and FM at about 2 and 30 ms, respectively -- FV/FM maximum quantum yield of primary photochemistry -- PSII Photosystem II -- PSI Photosystem I -- QA and QB primary and secondary quinone electron acceptor in PSII, the second quinone electron acceptor in PSII -- ABS/RC absorbed photon flux per PSII reaction centres -- DI/RC total energy dissipation per RC -- RC/CS0 density of reaction centers -- Ψ0 = ET0/TR0 the efficiency/probability with which a PSII trapped electron is transferred to QA to QB; Biomonitoring -- Pseudevernia furfuracea v. furfuracea -- OJIP transient -- Sea salt -- Atmospheric pollution; Environmental monitoring -- Periodicals; Environmental management -- Periodicals; Environmental impact analysis -- Periodicals; Environmental risk assessment -- Periodicals; Sustainable development -- Periodicals; 333.71405
• DOI: 10.1016/j.ecolind.2014.11.015
• Languages: English
• ISSNs: 1470-160X

Abstract

Highlights: Interaction of sea salt and air pollution alters the photosynthesis in P. furfuracea . P. furfuracea is more sensitive to air pollution than to the proximity to the sea. P. furfuracea may be used in biomonitoring survey of coastal areas. JIP-test parameters are good biomarkers of environment stresses in lichens. Abstract: This study investigated the effects of the interaction of sea salt and atmospheric pollution on the photosynthetic system of the lichen Pseudevernia furfuracea (L.) Zopf. v. furfuracea . Thalli of P. furfuracea were transplanted from remote area to different sites subjected to contrasting levels of atmospheric pollution and distance from the coast. Lichen chlorophyll a fluorescence was analysed weekly for one month by means of Handy PEA fluorometer. The effects of sea salt and atmospheric pollution were assessed by OJIP fluorescence transient and its derived fluorescence parameters. We showed that the response of the lichen to the single considered stressing factors was different and it could be detected in terms of variation of the electron flow at different steps of the OJIP fluorescence transient. Our data confirmed that the derived JIP-test parameters are good biomarkers to analyse different conditions of stress in lichens. In particular, we demonstrated that P. furfuracea is more sensitive to atmospheric pollution than to the proximity to the sea and to the interaction of these two factors.