Abstract
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
-
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
-
Solanum lycopersicum / drug effects
-
Solanum lycopersicum / physiology
Substances
-
DNA, Complementary
-
Ethylenes
-
Plant Proteins
-
Receptors, Cell Surface
-
ethylene receptors, plant
-
ethylene