Research Article

EIN2, a Bifunctional Transducer of Ethylene and Stress Responses in Arabidopsis

Science  25 Jun 1999:
Vol. 284, Issue 5423, pp. 2148-2152
DOI: 10.1126/science.284.5423.2148

You are currently viewing the abstract.

View Full Text

Via your Institution

Log in through your institution

Log in through your institution


Abstract

Ethylene regulates plant growth, development, and responsiveness to a variety of stresses. Cloning of the Arabidopsis EIN2 gene identifies a central component of the ethylene signaling pathway. The amino-terminal integral membrane domain of EIN2 shows similarity to the disease-related Nramp family of metal-ion transporters. Expression of the EIN2 CEND is sufficient to constitutively activate ethylene responses and restores responsiveness to jasmonic acid and paraquat-induced oxygen radicals to mutant plants. EIN2 is thus recognized as a molecular link between previously distinct hormone response pathways. Plants may use a combinatorial mechanism for assessing various stresses by enlisting a common set of signaling molecules.

  • * These authors contributed equally to this work and are listed alphabetically.

  • To whom correspondence should be addressed. E-mail: jecker{at}atgenome.bio.upenn.edu

View Full Text

Cited By...