Heme oxygenase - independent endogenous production of carbon monoxide by soybean plants subjected to salt stress

The exogenous application of carbon monoxide [CO] is a valuable strategy which enables study of the effects under different stress conditions. However, in this experimental model a true endogenous CO production by plants cannot be measured. In this work, so as to achieve an elevated sensitivity and...

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Detalles Bibliográficos
Autor principal: Zilli, Carla G.
Otros Autores: Santa Cruz, Diego Mario, Balestrasse, Karina Beatriz
Formato: Artículo
Lenguaje:Español
Materias:
CARBON MONOXIDE
CORRELATION
ENVIRONMENTAL STRESS
EXOBIOLOGY
GAS CHROMATOGRAPHY
HEME OXYGENASE
LIPID
METABOLISM
PLANT COMMUNITY
SALT STRESS
SOYBEAN
Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2014zilli.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
Biblioteca Central (FAUBA) de Universidad de Buenos Aires
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024 |a 10.1016/j.envexpbot.2014.01.012 
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100 1 |9 48328  |a Zilli, Carla G. 
245 0 0 |a Heme oxygenase - independent endogenous production of carbon monoxide by soybean plants subjected to salt stress 
520 |a The exogenous application of carbon monoxide [CO] is a valuable strategy which enables study of the effects under different stress conditions. However, in this experimental model a true endogenous CO production by plants cannot be measured. In this work, so as to achieve an elevated sensitivity and to avoid invasive techniques, we quantify the endogenous CO production by tissues in salt-treated soybean plants through gas chromatography coupled to a reduction gas detector. This technique allows short and room temperature incubation of intact tissues and homogenates. We found that a 200. mM NaCl treatment induces total CO production in leaves and roots. The sensitivity of the technique offers no correlation between this increment and heme oxygenase [HO] activity measured as a function of CO production. We also found that untreated soybean plants continue to produce significant CO levels up to 7 days post planting, after which CO content decreases to a third and remains constant in the next days. However, HO activity does not change throughout these days. The data here reported shows that HO activity is not the main source of CO in soybean plants. We discuss alternative sources that could be implicated in this production. Taking our own results and data reported by other colleagues, we propose lipid peroxidation and ureide metabolism as potential sources of CO. 
653 0 |a CARBON MONOXIDE 
653 0 |a CORRELATION 
653 0 |a ENVIRONMENTAL STRESS 
653 0 |a EXOBIOLOGY 
653 0 |a GAS CHROMATOGRAPHY 
653 0 |a HEME OXYGENASE 
653 0 |a LIPID 
653 0 |a METABOLISM 
653 0 |a PLANT COMMUNITY 
653 0 |a SALT STRESS 
653 0 |a SOYBEAN 
700 1 |9 48329  |a Santa Cruz, Diego Mario 
700 1 |a Balestrasse, Karina Beatriz  |9 37343 
773 |t Environmental and Experimental Botany  |g vol.102 (2014), p.11-16 
856 |u http://ri.agro.uba.ar/files/intranet/articulo/2014zilli.pdf  |i En reservorio  |q application/pdf  |f 2014zilli  |x MIGRADOS2018 
856 |u http://www.elsevier.com/  |x MIGRADOS2018  |z LINK AL EDITOR 
942 0 0 |c ARTICULO 
942 0 0 |c ENLINEA 
976 |a AAG 

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