Accumulation of Airborne Toxic Elements and Photosynthetic Performance of Lolium multiflorum L. Leaves

In this study, we aimed to investigate the accumulation of airborne trace elements in Lolium multiflorum leaves concerning photosynthetic activity parameters. Five sites for four 28-day series of plant exposition were selected. The concentration of trace elements in leaves was measured after each se...

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Bibliographic Details
Published in:Processes 2020-09, Vol.8 (9), p.1013
Main Authors: Borowiak, Klaudia, Budka, Anna, Lisiak-Zielińska, Marta, Hanć, Anetta, Zbierska, Janina, Barałkiewicz, Danuta, Kayzer, Dariusz, Gaj, Renata, Szymczak-Graczyk, Anna, Kanclerz, Jolanta
Format: Article
Language:English
Subjects:
Accumulation
Air pollution
Arsenic
Cadmium
Carbon dioxide
Chloroplasts
Conductance
Ethanol
Heavy metals
Investigations
Lead
Leaves
Lolium multiflorum
Nickel
Parameters
Photosynthesis
Physiology
Resistance
Spectrum analysis
Stomata
Trace elements
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Summary:In this study, we aimed to investigate the accumulation of airborne trace elements in Lolium multiflorum leaves concerning photosynthetic activity parameters. Five sites for four 28-day series of plant exposition were selected. The concentration of trace elements in leaves was measured after each series, while photosynthetic activity parameters were measured three times during each series. Net photosynthesis rate (PN) and stomatal conductance (gs) were mostly negatively associated with all analyzed trace elements, unlike to CO2 concentrations (Ci). Arsenic was found with opposite trend in two exposure series. The high accumulation of Cd and Pb in plants recorded at two sites was mostly related to lowest PN and gs. Similar tendency for PN was found at sites and series with the highest Cr and Ni content in plants. L. multiflorum revealed a medium-level accumulation of trace elements and a low tolerance of the photosynthetic process to the presence of trace elements in ambient air.
ISSN:2227-9717
2227-9717
DOI:10.3390/pr8091013