Sensitivity of Allium cepa and Vicia faba towards cadmium toxicity

Sensitivity of common onion (Allium cepa L.) and faba bean (Viciafaba L.) to cadmium (Cd) stress was investigated using genotoxicity endpoints. Simultaneously, the antioxidative stress enzymes (guaiacol peroxidise and catalase) and lipid peroxidation [malonaldehyde MDA) conten] were investigated in...

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Autores principales:	Arya,S.K, Mukherjee,A
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2014
Materias:	Antioxidant enzymes cadmium chromosomal aberrations comet assay lipid peroxidation micronucleus mitotic frequency
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000200015
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spelling	oai:scielo:S0718-951620140002000152014-07-30Sensitivity of Allium cepa and Vicia faba towards cadmium toxicityArya,S.KMukherjee,A Antioxidant enzymes cadmium chromosomal aberrations comet assay lipid peroxidation micronucleus mitotic frequency Sensitivity of common onion (Allium cepa L.) and faba bean (Viciafaba L.) to cadmium (Cd) stress was investigated using genotoxicity endpoints. Simultaneously, the antioxidative stress enzymes (guaiacol peroxidise and catalase) and lipid peroxidation [malonaldehyde MDA) conten] were investigated in the plants exposed to Cd in solution. The endpoints screened for genotoxicity included chromosomal aberrations, micronuclei frequency and mitotic frequency. Additionally comet assay was performed for DNA fragmentation. Evan's blue uptake by the root meristems as a cell death parameter served as indicator of cytotoxicity. The results indicated that exposure to Cd induced dose-dependent increase in chromosomal aberrations, DNA fragmentation and micronucleus frequency in both A.cepa and V. faba. The enzymes guaiacol peroxidase (GPX) and catalase (CAT) activities increased in both the plants and were higher in V. faba. A positive correlation between the activity of GPX and CAT and MDA content was recorded at all concentrations of Cd. Regarding sensitivity, our results showed that V. faba is more sensitive plant than A. cepa towards Cd -induced toxicity. Higher genotoxicity level correlated to the increased level of oxidative stress in root tissues. This was likely to be an important cause of Vicia plant to be less tolerant than Allium.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.14 n.2 20142014-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000200015en10.4067/S0718-95162014005000035
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Antioxidant enzymes cadmium chromosomal aberrations comet assay lipid peroxidation micronucleus mitotic frequency
spellingShingle	Antioxidant enzymes cadmium chromosomal aberrations comet assay lipid peroxidation micronucleus mitotic frequency Arya,S.K Mukherjee,A Sensitivity of Allium cepa and Vicia faba towards cadmium toxicity
description	Sensitivity of common onion (Allium cepa L.) and faba bean (Viciafaba L.) to cadmium (Cd) stress was investigated using genotoxicity endpoints. Simultaneously, the antioxidative stress enzymes (guaiacol peroxidise and catalase) and lipid peroxidation [malonaldehyde MDA) conten] were investigated in the plants exposed to Cd in solution. The endpoints screened for genotoxicity included chromosomal aberrations, micronuclei frequency and mitotic frequency. Additionally comet assay was performed for DNA fragmentation. Evan's blue uptake by the root meristems as a cell death parameter served as indicator of cytotoxicity. The results indicated that exposure to Cd induced dose-dependent increase in chromosomal aberrations, DNA fragmentation and micronucleus frequency in both A.cepa and V. faba. The enzymes guaiacol peroxidase (GPX) and catalase (CAT) activities increased in both the plants and were higher in V. faba. A positive correlation between the activity of GPX and CAT and MDA content was recorded at all concentrations of Cd. Regarding sensitivity, our results showed that V. faba is more sensitive plant than A. cepa towards Cd -induced toxicity. Higher genotoxicity level correlated to the increased level of oxidative stress in root tissues. This was likely to be an important cause of Vicia plant to be less tolerant than Allium.
author	Arya,S.K Mukherjee,A
author_facet	Arya,S.K Mukherjee,A
author_sort	Arya,S.K
title	Sensitivity of Allium cepa and Vicia faba towards cadmium toxicity
title_short	Sensitivity of Allium cepa and Vicia faba towards cadmium toxicity
title_full	Sensitivity of Allium cepa and Vicia faba towards cadmium toxicity
title_fullStr	Sensitivity of Allium cepa and Vicia faba towards cadmium toxicity
title_full_unstemmed	Sensitivity of Allium cepa and Vicia faba towards cadmium toxicity
title_sort	sensitivity of allium cepa and vicia faba towards cadmium toxicity
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000200015
work_keys_str_mv	AT aryask sensitivityofalliumcepaandviciafabatowardscadmiumtoxicity AT mukherjeea sensitivityofalliumcepaandviciafabatowardscadmiumtoxicity
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Sensitivity of Allium cepa and Vicia faba towards cadmium toxicity

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