A dominant mutant receptor from Arabidopsis confers ethylene insensitivity in heterologous plants

Nat Biotechnol. 1997 May;15(5):444-7. doi: 10.1038/nbt0597-444.


Ethylene (C2H4) is a gaseous hormone that affects many aspects of plant growth and development. Ethylene perception requires specific receptors and a signal transduction pathway to coordinate downstream responses. The etr1-1 gene of Arabidopsis encodes a mutated receptor that confers dominant ethylene insensitivity. Evidence is presented here that etr1-1 also causes significant delays in fruit ripening, flower sensecence; and flower abscission when expressed in tomato and petunia plants. The ability of etr1-1 to function in heterologous plants suggests that this pathway of hormone recognition and response is highly conserved and can be manipulated.

Publication types

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

MeSH terms

  • Amino Acid Sequence
  • Arabidopsis / genetics*
  • Arabidopsis / physiology
  • Conserved Sequence
  • DNA, Complementary
  • Ethylenes / metabolism
  • Ethylenes / pharmacology*
  • Genes, Dominant
  • Genes, Plant
  • Genetic Engineering / methods
  • Lycopersicon esculentum / drug effects
  • Lycopersicon esculentum / physiology
  • Plant Proteins / biosynthesis
  • Plant Proteins / genetics
  • Plant Proteins / physiology*
  • Plants, Genetically Modified
  • Receptors, Cell Surface / biosynthesis
  • Receptors, Cell Surface / genetics
  • Receptors, Cell Surface / physiology*
  • Signal Transduction


  • DNA, Complementary
  • Ethylenes
  • Plant Proteins
  • Receptors, Cell Surface
  • ethylene receptors, plant
  • ethylene