Different responses of young and expanded lettuce leaves to fungicide Mancozeb: chlorophyll fluorescence, lipid peroxidation, pigments and proline content
authors Dias, MC; Figueiredo, P; Duarte, IF; Gil, AM; Santos, C
nationality International
journal PHOTOSYNTHETICA
author keywords anthocyanins; dithiocarbamates; photosynthetic efficiency; toxicity
keywords ELECTROLYTE LEAKAGE; ANTIOXIDANT ENZYMES; PHOTOSYNTHESIS; FLUDIOXONIL; PESTICIDES; PHYSIOLOGY; STRESS; PLANTS; OZONE; YIELD
abstract This work aimed to study the effects of commercial doses of the fungicide, Mancozeb, on the photosynthetic apparatus of lettuce young leaves (YL) and expanded leaves (EL). Seven days after Mancozeb application, chlorophyll a fluorescence, pigment contents, lipid peroxidation, and proline content were evaluated. Independently of leaf age, Mancozeb treatment reduced the efficiency of photosystem II photochemistry, increased the nonphotochemical quenching and proline content, decreased pigment contents, and induced lipid peroxidation. Moreover, EL showed a more stable photosynthetic apparatus, less prone to oxidative damages compared with YL. The parameters measured proved to be good markers for the rapid and preliminary diagnosis of fungicide toxicity.
publisher SPRINGER
issn 0300-3604
year published 2014
volume 52
issue 1
beginning page 148
ending page 151
digital object identifier (doi) 10.1007/s11099-014-0016-y
web of science category Plant Sciences
subject category Plant Sciences
unique article identifier WOS:000332451900016
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journal analysis (jcr 2017):
journal impact factor 1.740
5 year journal impact factor 2.137
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