Comparative proteomics analysis of differentially expressed proteins in soybean cell wall during flooding stress.
Amino Acids
; 39(5): 1435-49, 2010 Nov.
Article
em En
| MEDLINE
| ID: mdl-20458513
ABSTRACT
Flooding is a major problem for soybean crop as it reduces the growth and grain yield. To investigate the function of the soybean cell wall in the response to flooding stress, cell wall proteins were analyzed. Cell wall proteins from roots and hypocotyls of soybeans, which were germinated for 2 days and subjected to 2 days of flooding, were purified, separated by two-dimensional polyacrylamide gel electrophoresis and stained with Coomassie brilliant blue. Sixteen out of 204 cell wall proteins showed responses to flooding stress. Of these, two lipoxygenases, four germin-like protein precursors, three stem 28/31 kDa glycoprotein precursors, and one superoxide dismutase [Cu-Zn] were downregulated. A copper amine oxidase was found to have shifted from the basic to acidic zone following flooding stress. Based on these results, it was confirmed by the lignin staining that the lignification was suppressed in the root of soybean under the flooding stress. These results suggest that the roots and hypocotyls of soybean caused the suppression of lignification through decrease of these proteins by downregulation of reactive oxygen species and jasmonate biosynthesis under flooding stress.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Glycine max
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Estresse Fisiológico
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Parede Celular
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Regulação da Expressão Gênica de Plantas
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Proteínas de Soja
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Proteômica
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Inundações
Idioma:
En
Revista:
Amino Acids
Assunto da revista:
BIOQUIMICA
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Japão