EIN2, a Bifunctional Transducer of Ethylene and Stress Responses in Arabidopsis-Reference-Cited by-同舟云学术

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

Published:1999-06-25 Issue:5423 Volume:284 Page:2148-2152
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Alonso Jose M.¹,Hirayama Takashi¹,Roman Gregg¹,Nourizadeh Saeid¹,Ecker Joseph R.¹

Affiliation:

1. Plant Science Institute, Department of Biology, University of Pennsylvania, Philadelphia, PA 19104–6018, USA.

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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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