In vitro regeneration and Agrobacterium-mediated genetic transformation of Euonymus alatus

Plant Cell Rep. 2006 Oct;25(10):1043-51. doi: 10.1007/s00299-006-0168-8. Epub 2006 May 30.

Abstract

An in vitro plant regeneration method and an Agrobacterium tumefaciens-mediated genetic transformation protocol were developed for Euonymus alatus. More than 60% of cotyledon and 70% of hypocotyl sections from 10-day-old seedlings of E. alatus produced 2-4 shoots on woody plant medium (WPM) supplemented with 5.0 mg/l 6-benzylaminopurine (BA) plus 0.2 mg/l alpha-naphthalene acetic acid (NAA), and 77% of shoots produced roots on WPM medium with 0.3 mg/l NAA and 0.5 mg/l Indole-3-butyricacid (IBA). On infection with Agrobacterium tumefaciens strain EHA105 harboring a gusplus gene that contained a plant recognizable intron from the castor bean catalase gene to ensure plant-specific beta-glucuronidase (GUS) expression, 16% of cotyledon and 15% of hypocotyl explants produced transgenic shoots using kanamycin as a selection agent, and 67% of these shoots rooted. Stable insertion of T-DNA into the host genome was determined with organ- and tissue-specific expression of the gusplus gene and further confirmed with a PCR-based molecular analysis.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Agrobacterium tumefaciens / metabolism*
  • Cotyledon / physiology
  • DNA, Bacterial / metabolism
  • Euonymus / genetics
  • Euonymus / physiology*
  • Genome, Plant / genetics
  • Hypocotyl / physiology
  • Plant Leaves / cytology
  • Plant Roots / cytology
  • Plants, Genetically Modified
  • Regeneration*
  • Transformation, Genetic*

Substances

  • DNA, Bacterial
  • T-DNA