Differences in Endogenous Levels of Gibberellin-Like Substances in Nodules of Phaseolus lunatus L. Plants Inoculated with Two Rhizobium Strains 1
AUTOR(ES)
Evensen, Kathleen B.
RESUMO
Lima bean plants (Phaseolus lunatus L.) inoculated with Rhizobium sp. strain 127E14, which lacks constitutive nitrate reductase activity, were significantly taller after 4 weeks of age than plants inoculated with strain 127E15, which contains constitutive nitrate reductase activity. Plants inoculated with either strain responded to application of 5 micrograms gibberellic acid per plant with rapid internode elongation; plants inoculated with strain 127E15 became less responsive to gibberellic acid from 3 to 5 weeks of age, while plants inoculated with strain 127E14 did not. The height of plants inoculated with strain 127E14 was reduced by 20% with application of gibberellin biosynthesis inhibitors to the roots, while height of plants inoculated with strain 127E15 was unaffected.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=425914Documentos Relacionados
- Changes of Endogenous Gibberellin-like Substances with Sex Reversal of the Apical Inflorescence of Corn 1
- Acid & neutral gibberellin-like substances in potato tubers 12
- Gibberellins and Gravitropism in Maize Shoots 1: Endogenous Gibberellin-Like Substances and Movement and Metabolism of [3H]Gibberellin A20
- Isolation and Properties of Gibberellin-like Substances from Citrus Fruits 12
- Temperature Interactions with Growth Regulators and Endogenous Gibberellin-like Activity during Seedstalk Elongation in Carrots 1
