Cadmium modulates NADPH oxidase activity and expression in sunflower leaves

The production of reactive oxygen species (ROS) and the ways by which ROS are generated are very important facts related to heavy metal toxicity in plants. In this work, superoxide anion (O2·-) generation diminished in cadmium treated sunflower (Helianthus annuus L.) leaf discs, and this reduction w...

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Autores principales: Groppa, M.D., Ianuzzo, M.P., Rosales, E.P., Vázquez, S.C., Benavides, M.P.
Formato: JOUR
Materias:
Helianthus annuus
reactive oxygen species
superoxide anion
Helianthus
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00063134_v56_n1_p167_Groppa
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00063134_v56_n1_p167_Groppa
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spelling todo:paper_00063134_v56_n1_p167_Groppa2023-10-03T14:04:42Z Cadmium modulates NADPH oxidase activity and expression in sunflower leaves Groppa, M.D. Ianuzzo, M.P. Rosales, E.P. Vázquez, S.C. Benavides, M.P. Helianthus annuus reactive oxygen species superoxide anion Helianthus Helianthus annuus The production of reactive oxygen species (ROS) and the ways by which ROS are generated are very important facts related to heavy metal toxicity in plants. In this work, superoxide anion (O2·-) generation diminished in cadmium treated sunflower (Helianthus annuus L.) leaf discs, and this reduction was time and Cd-concentration dependent. In line with these findings, we observed that NADPH-dependent oxidase activity was significantly inhibited by 0. 1 and 0. 5 mM Cd2+ treatments and the expression of the NADPH oxidase putative gene related to O2·- synthesis in sunflower leaves was 83 % inhibited by 0. 1 mM CdCl2 and almost completely depleted by 0. 5 mM CdCl2. © 2012 Springer Science+Business Media B.V. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00063134_v56_n1_p167_Groppa
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Helianthus annuus
reactive oxygen species
superoxide anion
Helianthus
Helianthus annuus
spellingShingle Helianthus annuus
reactive oxygen species
superoxide anion
Helianthus
Helianthus annuus
Groppa, M.D.
Ianuzzo, M.P.
Rosales, E.P.
Vázquez, S.C.
Benavides, M.P.
Cadmium modulates NADPH oxidase activity and expression in sunflower leaves
topic_facet Helianthus annuus
reactive oxygen species
superoxide anion
Helianthus
Helianthus annuus
description The production of reactive oxygen species (ROS) and the ways by which ROS are generated are very important facts related to heavy metal toxicity in plants. In this work, superoxide anion (O2·-) generation diminished in cadmium treated sunflower (Helianthus annuus L.) leaf discs, and this reduction was time and Cd-concentration dependent. In line with these findings, we observed that NADPH-dependent oxidase activity was significantly inhibited by 0. 1 and 0. 5 mM Cd2+ treatments and the expression of the NADPH oxidase putative gene related to O2·- synthesis in sunflower leaves was 83 % inhibited by 0. 1 mM CdCl2 and almost completely depleted by 0. 5 mM CdCl2. © 2012 Springer Science+Business Media B.V.
format JOUR
author Groppa, M.D.
Ianuzzo, M.P.
Rosales, E.P.
Vázquez, S.C.
Benavides, M.P.
author_facet Groppa, M.D.
Ianuzzo, M.P.
Rosales, E.P.
Vázquez, S.C.
Benavides, M.P.
author_sort Groppa, M.D.
title Cadmium modulates NADPH oxidase activity and expression in sunflower leaves
title_short Cadmium modulates NADPH oxidase activity and expression in sunflower leaves
title_full Cadmium modulates NADPH oxidase activity and expression in sunflower leaves
title_fullStr Cadmium modulates NADPH oxidase activity and expression in sunflower leaves
title_full_unstemmed Cadmium modulates NADPH oxidase activity and expression in sunflower leaves
title_sort cadmium modulates nadph oxidase activity and expression in sunflower leaves
url http://hdl.handle.net/20.500.12110/paper_00063134_v56_n1_p167_Groppa
work_keys_str_mv AT groppamd cadmiummodulatesnadphoxidaseactivityandexpressioninsunflowerleaves
AT ianuzzomp cadmiummodulatesnadphoxidaseactivityandexpressioninsunflowerleaves
AT rosalesep cadmiummodulatesnadphoxidaseactivityandexpressioninsunflowerleaves
AT vazquezsc cadmiummodulatesnadphoxidaseactivityandexpressioninsunflowerleaves
AT benavidesmp cadmiummodulatesnadphoxidaseactivityandexpressioninsunflowerleaves
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