Plant Growth Regulation

, Volume 43, Issue 1, pp 57–62

Insulin Accelerates Seedling Growth of Canavalia ensiformis (Jack bean)

  • Antônia E.A. Oliveira
  • Elane S. Ribeiro
  • Maura da Cunha
  • Valdirene M. Gomes
  • Kátia V.S. Fernandes
  • José Xavier-Filho
Article

DOI: 10.1023/B:GROW.0000038259.34384.0c

Cite this article as:
Oliveira, A.E., Ribeiro, E.S., Cunha, M.. et al. Plant Growth Regulation (2004) 43: 57. doi:10.1023/B:GROW.0000038259.34384.0c

Abstract

Insulin is a 6 kDa peptide hormone that activates several metabolic processes and cellular growth. Germination studies showed that insulin, vanadyl sulphate (an insulin mimetic compound), tyrphostin (an inhibitor of insulin receptor kinase activity), pinitol (a chiro inositol analogue) and glucose were able to accelerate Canavalia ensiformis (Jack bean) seedling radicle and epicotyl development. Immunofluorescence microscopy analysis showed that proteins binding to insulin, insulin receptor and phosphoserine antibodies are localized in an internal layer of the C. ensiformis seed coat. These results and others previously reported from our laboratory suggest that insulin, insulin receptor and phosphoserine proteins could be components of signalling pathways akin to those present in animals.

Canavalia ensiformisGerminationInsulinInsulin-like growth factorsSeed coat

Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • Antônia E.A. Oliveira
    • 1
  • Elane S. Ribeiro
    • 1
  • Maura da Cunha
    • 2
  • Valdirene M. Gomes
    • 3
  • Kátia V.S. Fernandes
    • 1
  • José Xavier-Filho
    • 1
  1. 1.Laboratório de Química e Função de Proteínas e Peptídeos, Centro de Biociências e BiotecnologiaUniversidade Estadual do Norte FluminenseCampos dos Goytacazes, RJBrazil
  2. 2.Laboratório de Biologia Celular e Tecidual, Centro de Biociências e BiotecnologiaUniversidade Estadual do Norte FluminenseCampos dos Goytacazes, RJBrazil
  3. 3.Laboratório de Fisiologia e Bioquímica de Microorganismos, Centro de Biociências e BiotecnologiaUniversidade Estadual do Norte FluminenseCampos dos Goytacazes, RJBrazil