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Effect of salt on the growth and metabolism of Glycine max
Queiroz, Helena Müller; Sodek, Ladaslav; Haddad, Claudia Regina Baptista.
Afiliação
  • Queiroz, Helena Müller; Universidade Estadual de Campinas. Instituto de Biologia. Departamento de Biologia Vegetal. Campinas. BR
  • Sodek, Ladaslav; Universidade Estadual de Campinas. Instituto de Biologia. Departamento de Biologia Vegetal. Campinas. BR
  • Haddad, Claudia Regina Baptista; Universidade Estadual de Campinas. Instituto de Biologia. Departamento de Biologia Vegetal. Campinas. BR
Braz. arch. biol. technol ; Braz. arch. biol. technol;55(6): 809-817, Nov.-Dec. 2012. ilus, tab
Article em En | LILACS | ID: lil-660327
Biblioteca responsável: BR1.1
ABSTRACT
Soybean plants cultivated with 50, 100 and 200 mM of NaCl, revealed that root growth was less affected by salinity than shoots. Salinity led to a reduction in leaf area and an increase in water content of the roots. These factors could contribute to the adaptation of the plant, improving its hydration. Although nitrate and free amino acid levels were reduced by salt treatment in roots, protein content of leaves was not altered. Salinity led to alterations in xylem amino acid composition, with increases in Ser, Ala, Gaba and Pro and a decrease in Asn. Similar changes were seen for Asn and Ser in roots together with a much stronger increase in Gaba. It is suggested that the decline in Asn reflects its conversion to Ala and Gaba (via Glu) in the roots while the increase in Pro and Gaba could be related to the adaptation of the plant to salinity.
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Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Idioma: En Revista: Braz. arch. biol. technol Assunto da revista: BIOLOGIA Ano de publicação: 2012 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil
Texto completo
Adicionar na Minha BVS
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Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Idioma: En Revista: Braz. arch. biol. technol Assunto da revista: BIOLOGIA Ano de publicação: 2012 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil