• Keine Ergebnisse gefunden

Effects of Heavy Metals on the Fast Chlorophyll Fluorescence Induction Kinetics of Photosystem II: a Comparative Study

N/A
N/A
Info
Herunterladen
Protected

Academic year: 2022

Aktie "Effects of Heavy Metals on the Fast Chlorophyll Fluorescence Induction Kinetics of Photosystem II: a Comparative Study"

Copied!
1
0
0

Wird geladen.... (Jetzt Volltext ansehen)

Jetzt herunterladen ( 1 Seite )

Volltext

(1)

Effects of Heavy Metals on the Fast Chlorophyll Fluorescence Induction Kinetics of Photosystem II: a Comparative Study

M. Ciscato

a,

*, J. Vangronsveld

b

and R. Valcke

a

a Limburgs Universitair Centrum, Laboratory of Botany

b Laboratory of Environmental Biology, Universitaire Campus Building D, B-3590 Diepenbeek, Belgium. Fax: +32 11 268301. E-mail: mciscato@luc.ac.be

* Author for correspondence and reprint requests

Z. Naturforsch.54c,735Ð739 (1999); received November 8, 1998/March 10, 1999 Cadmium, Chlorophyll Fluorescence, Copper, Heavy Metals, Zinc

The effects of toxic concentrations of Cu, Zn and Cd on the fast induction kinetics of fluorescence from photosystem(PS)II were investigated in a comparative way. The fast fluo- rescence transient from primary leaves of metal-treated bean plants was studied. During several days after metal application, the time course of the changes induced by the different metals was monitored. The results evidenced not only a different time course of the changes in fluorescence related parameters for the three metals, but also different effects on the fluorescence induction kinetics, which could possibly be linked to different mechanisms of action of the metals.

Referenzen

Jetzt herunterladen ( PDF - 1 Seite - 17.04 KB )

ÄHNLICHE DOKUMENTE

Multiple Effects of Cadmium on the Photosynthetic Apparatus of Avicennia germinans L. as Probed by OJIP Chlorophyll Fluorescence Measurements

This perform- ance index is the combination of the indexes of three independent parameters: (1) total number of active reaction centers per absorption (RC/ABS), (2) yield of

Multiple Effects of Cadmium on the Photosynthetic Apparatus of Avicennia germinans L. as Probed by OJIP Chlorophyll Fluorescence Measurements

Additionally, the method of chlorophyll fluorescence and OJIP-test may be used as a tool to understand the primary mode of action of heavy metals on the photosynthetic apparatus

Thermostability and Photostability of Photosystem II of the Resurrection Plant Haberlea rhodopensis Studied by Chlorophyll Fluorescence

The stability of PSII in leaves of the resurrection plant Haberlea rhodopensis to high tem- perature and high light intensities was studied by means of chlorophyll fluorescence

Thermostability and Photostability of Photosystem II of the Resurrection Plant Haberlea rhodopensis Studied by Chlorophyll Fluorescence

Effect of increasing light intensity on (A) the quantum yield of PSII electron transport in the light- adapted state, Φ PSII, (B) the photochemical qP and non-photochemical

of the Magnetic Induction

However, mainly in astrophysics [2 – 4], space physics [5, 6], and plasma physics [7,8], there arises very often the problem of the motion of a charged particle when the intensity

Influence of Molecular Oxygen on the Chlorophyll Fluorescence Decay of Green Algae

Chlorella vulgaris, Chlorophyll Fluorescence Quenching, Green Algae, Molecular Oxygen Molecular oxygen can act as a collisional quencher of the singlet excited state of chloro-

The Effects of the Brexit on the Lugano Convention – A Matter of Time 156

In its decision of 22 March 2021 5A_697/2020, which was published online on 28 July 2021, the Swiss Federal Supreme Court confirms that, under certain conditions, the

: The Role of the Photosystem I Contribution to the 735 nm Fluorescence Band

F685, red chlorophyll fluorescence intensity; F735, far-red chlo- rophyll fluorescence intensity; FR, fluorescence ratio between red and far-red chlorophyll emission; FWHM, full