Biliverdin-promoted lateral root formation is mediated through heme oxygenase in rice

Plant Signal Behav. 2012 Jul;7(7):885-7. doi: 10.4161/psb.20458. Epub 2012 Jul 1.

Abstract

In this study, we examined the effect of biliverdin (BV), a product of heme oxygenase (HO) catalyzed reaction, on lateral root (LR) formation in rice. Treatment with BV induced LR formation and HO activity. As well, BV, could induce OsHO1 mRNA expression. Zn protoporphyrin IX (the specific inhibitor of HO) reduced LR number, HO activity and OsHO1 mRNA level induced by BV. Our data suggest that HO is required for BV-induced LR formation in rice.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biliverdine / pharmacology*
  • Gene Expression Regulation, Enzymologic / drug effects
  • Gene Expression Regulation, Plant / drug effects
  • Heme Oxygenase (Decyclizing) / genetics
  • Heme Oxygenase (Decyclizing) / metabolism*
  • Oryza / drug effects
  • Oryza / enzymology*
  • Oryza / genetics
  • Oryza / growth & development*
  • Plant Proteins / genetics
  • Plant Proteins / metabolism*
  • Plant Roots / drug effects
  • Plant Roots / enzymology*
  • Plant Roots / genetics
  • Plant Roots / growth & development*
  • Protoporphyrins / pharmacology
  • Seedlings / drug effects
  • Seedlings / enzymology
  • Seedlings / growth & development

Substances

  • Plant Proteins
  • Protoporphyrins
  • zinc protoporphyrin
  • Heme Oxygenase (Decyclizing)
  • Biliverdine