Details

Title

Relations between photosynthetic pigments, macro-element contents and selected trace elements accumulated in Lolium Multiflorum L. exposed to ambient air conditions

Journal title

Acta Biologica Cracoviensia s. Botanica

Yearbook

2018

Numer

No 1

Publication authors

Keywords

air pollution ; elements ; bioindicators ; Italian ryegrass ; chlorophylls ; PCA ; correlations

Divisions of PAS

Nauki Biologiczne i Rolnicze

Abstract

The major aim of the study was to identify the relationships of photosynthetic pigments with elemental contents of plants exposed to various ambient air conditions. Lolium multiflorum L. plants were exposed at five sites varying in environmental characteristics, including potential air pollution levels. The effect of air pollution by trace elements on plants was examined. Selected trace elements (Pb, Cd, As, Ni, Cr), some macro-elements as well as chlorophyll content were measured after each of four series. The graphical visualization revealed groups of sites with similar response of elements and chlorophyll contents. Sites located outside the city were grouped into one, and two urban sites were grouped into another. The trace element contents were relatively low and, excluding Ni and As, did not reach toxic levels in dry mass of leaves. However, some relations could be noted, which indicates the sensitivity of the photosynthetic process even at low levels of trace elements in ambient air. Chlorophyll b was found to be more sensitive to most of the analyzed trace elements than chlorophyll a. The results revealed chlorophylls, K and Na as indicators of plant stress caused by trace elements present in ambient air, even at relatively low levels.

Publisher

Biological Commission of the Polish Academy of Sciences – Cracow Branch

Date

2018.07.05

Type

Artykuł

Identifier

eISSN 1898-0295 ; ISSN 0001-5296

DOI

10.24425/118043

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