Polyamine catabolism is involved in response to salt stress in soybean hypocotyls

The possible relationship between polyamine catabolism mediated by copper-containing amine oxidase and the elongation of soybean hypocotyls from plants exposed to NaCl has been studied. Salt treatment reduced values of all hypocotyl growth parameters. In vitro, copper-containing amine oxidase activi...

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Detalles Bibliográficos
Autores principales:	Menéndez, Ana Bernardina, Rodríguez, Andrés Alberto
Publicado:	2011
Materias:	Copper-containing amine oxidase Growth Hydrogen peroxide Saline stress Soybean Glycine max
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01761617_v168_n11_p1234_Campestre http://hdl.handle.net/20.500.12110/paper_01761617_v168_n11_p1234_Campestre
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_01761617_v168_n11_p1234_Campestre
record_format	dspace
spelling	paper:paper_01761617_v168_n11_p1234_Campestre2023-06-08T15:19:04Z Polyamine catabolism is involved in response to salt stress in soybean hypocotyls Menéndez, Ana Bernardina Rodríguez, Andrés Alberto Copper-containing amine oxidase Growth Hydrogen peroxide Saline stress Soybean Glycine max The possible relationship between polyamine catabolism mediated by copper-containing amine oxidase and the elongation of soybean hypocotyls from plants exposed to NaCl has been studied. Salt treatment reduced values of all hypocotyl growth parameters. In vitro, copper-containing amine oxidase activity was up to 77-fold higher than that of polyamine oxidase. This enzyme preferred cadaverine over putrescine and it was active even under the saline condition. On the other hand, saline stress increased spermine and cadaverine levels, and the in vivo copper-containing amine oxidase activity in the elongation zone of hypocotyls. The last effect was negatively modulated by the addition of the copper-containing amine oxidase inhibitor N,N'-diaminoguanidine. In turn, plants treated with the inhibitor showed a significant reduction of reactive oxygen species in the elongation zone, even in the saline situation. In addition, plants grown in cadaverine-amended culture medium showed increased hypocotyl length either in saline or control conditions and this effect was also abolished by N,N'-diaminoguanidine. Taken together, our results suggest that the activity of the copper-containing amine oxidase may be partially contributing to hypocotyl growth under saline stress, through the production of hydrogen peroxide by polyamine catabolism and reinforce the importance of polyamine catabolism and hydrogen peroxide production in the induction of salt tolerance in plants. © 2011 Elsevier GmbH. Fil:Menéndez, A.B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Rodríguez, A.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01761617_v168_n11_p1234_Campestre http://hdl.handle.net/20.500.12110/paper_01761617_v168_n11_p1234_Campestre
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Copper-containing amine oxidase Growth Hydrogen peroxide Saline stress Soybean Glycine max
spellingShingle	Copper-containing amine oxidase Growth Hydrogen peroxide Saline stress Soybean Glycine max Menéndez, Ana Bernardina Rodríguez, Andrés Alberto Polyamine catabolism is involved in response to salt stress in soybean hypocotyls
topic_facet	Copper-containing amine oxidase Growth Hydrogen peroxide Saline stress Soybean Glycine max
description	The possible relationship between polyamine catabolism mediated by copper-containing amine oxidase and the elongation of soybean hypocotyls from plants exposed to NaCl has been studied. Salt treatment reduced values of all hypocotyl growth parameters. In vitro, copper-containing amine oxidase activity was up to 77-fold higher than that of polyamine oxidase. This enzyme preferred cadaverine over putrescine and it was active even under the saline condition. On the other hand, saline stress increased spermine and cadaverine levels, and the in vivo copper-containing amine oxidase activity in the elongation zone of hypocotyls. The last effect was negatively modulated by the addition of the copper-containing amine oxidase inhibitor N,N'-diaminoguanidine. In turn, plants treated with the inhibitor showed a significant reduction of reactive oxygen species in the elongation zone, even in the saline situation. In addition, plants grown in cadaverine-amended culture medium showed increased hypocotyl length either in saline or control conditions and this effect was also abolished by N,N'-diaminoguanidine. Taken together, our results suggest that the activity of the copper-containing amine oxidase may be partially contributing to hypocotyl growth under saline stress, through the production of hydrogen peroxide by polyamine catabolism and reinforce the importance of polyamine catabolism and hydrogen peroxide production in the induction of salt tolerance in plants. © 2011 Elsevier GmbH.
author	Menéndez, Ana Bernardina Rodríguez, Andrés Alberto
author_facet	Menéndez, Ana Bernardina Rodríguez, Andrés Alberto
author_sort	Menéndez, Ana Bernardina
title	Polyamine catabolism is involved in response to salt stress in soybean hypocotyls
title_short	Polyamine catabolism is involved in response to salt stress in soybean hypocotyls
title_full	Polyamine catabolism is involved in response to salt stress in soybean hypocotyls
title_fullStr	Polyamine catabolism is involved in response to salt stress in soybean hypocotyls
title_full_unstemmed	Polyamine catabolism is involved in response to salt stress in soybean hypocotyls
title_sort	polyamine catabolism is involved in response to salt stress in soybean hypocotyls
publishDate	2011
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01761617_v168_n11_p1234_Campestre http://hdl.handle.net/20.500.12110/paper_01761617_v168_n11_p1234_Campestre
work_keys_str_mv	AT menendezanabernardina polyaminecatabolismisinvolvedinresponsetosaltstressinsoybeanhypocotyls AT rodriguezandresalberto polyaminecatabolismisinvolvedinresponsetosaltstressinsoybeanhypocotyls
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Polyamine catabolism is involved in response to salt stress in soybean hypocotyls

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