Chlorophyll fluorescence quenching analysis of Solanum nigrum in relation to water deficit

Chlorophyll fluorescence quenching was studied in intact attached leaves of atrazine-susceptible (AS) and atrazine resistant (AR) biotypes of Solanum nigrum in relation to water deficit. Comparative studies on light response changes of chlorophyll fluorescence showed that AR plants have a lower elec...

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Bibliographic Details
Main Authors: Bajkán Szilvia
Váradi Gyula
Lehoczki Endre
Format: Article
Published: 2005
Series:Acta biologica Szegediensis 49 No. 1-2
Kulcsszavak:Természettudomány, Biológia
Online Access:http://acta.bibl.u-szeged.hu/22727
Description
Summary:Chlorophyll fluorescence quenching was studied in intact attached leaves of atrazine-susceptible (AS) and atrazine resistant (AR) biotypes of Solanum nigrum in relation to water deficit. Comparative studies on light response changes of chlorophyll fluorescence showed that AR plants have a lower electrontransport rate (ETR) and photochemical quenching (qP), and a less effective non-photochemical quenching (NPQ). We observed that photosystem II (PSII) function of both biotypes of S. nigrum is tolerant to drought stress.
Physical Description:207-209
ISSN:1588-385X