Please use this identifier to cite or link to this item: https://biore.bio.bg.ac.rs/handle/123456789/1939
Title: Zinc accumulation, photosynthetic gas exchange, and chlorophyll a fluorescence in Zn-stressed Miscanthus × giganteus plants
Authors: Andrejić, Gordana
Gajić, Gajić
Prica, Milijana 
Dželetović, Željko
Rakić, Tamara 
Keywords: photosynthesis;phytoremediation;pigments;Zn tolerance
Issue Date: 1-Dec-2018
Rank: M21
Journal: Photosynthetica
Abstract: 
Accumulation and distribution of zinc within Miscanthus × giganteus plants grown on elevated Zn concentrations and their photosynthetic performance were investigated. High concentrations of Zn in soils caused an increase of its concentrations in all plant organs. The bioconcentration factor, bioaccumulation factor, and translocation factor were lower than one indicating that M. × giganteus is an excluder plant species. Excessive Zn induced visible leaf damage, i.e. chlorosis and necrosis, only in the oldest leaves, pointing to Zn accumulation. Elevated amounts of Zn in leaves significantly lowered the photosynthetic rate, transpiration rate, stomatal conductance, intercellular CO2 concentrations, parameters of chlorophyll a fluorescence, and chlorophyll b content. Despite Zn excess in leaves, there was no severe reduction in the maximal quantum yield of PSII photochemistry, indicating a high photosynthetic capacity, high tolerance to elevated Zn concetrations, and ability of M. × giganteus to grow on Zn-contaminated soils.
URI: https://biore.bio.bg.ac.rs/handle/123456789/1939
ISSN: 0300-3604
DOI: 10.1007/s11099-018-0827-3
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