Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

A tomato homeobox gene (HD‐Zip) is involved in limiting the spread of programmed cell death

A tomato homeobox gene (HD‐Zip) is involved in limiting the spread of programmed cell death Antisense suppression in transgenic tomato plants of H52, a gene encoding a new homeodomain protein of the HD‐Zip class, produces a conditional lethal phenotype. The transgenic lines that survive exhibit spontaneous misregulation of cell death control in leaves, which, once initiated, propagates and engulfs the entire leaf. Activation of defence genes, over‐accumulation of ethylene and conjugated salicylic acid, and growth reduction of virulent pathogens also occurs in these plants. In wild‐type plants, H52 is up‐regulated upon infection, mirroring the generation of the oxidative burst which normally precedes the hypersensitive response (HR). Thus, H52 appears to be a transcription factor involved in cellular protection by limiting spread of programmed cell death in plants. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Plant Journal Wiley

A tomato homeobox gene (HD‐Zip) is involved in limiting the spread of programmed cell death

Loading next page...
 
/lp/wiley/a-tomato-homeobox-gene-hd-zip-is-involved-in-limiting-the-spread-of-846qWnEzGj

References (53)

Publisher
Wiley
Copyright
Copyright © 1999 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0960-7412
eISSN
1365-313X
DOI
10.1046/j.1365-313X.1999.00633.x
Publisher site
See Article on Publisher Site

Abstract

Antisense suppression in transgenic tomato plants of H52, a gene encoding a new homeodomain protein of the HD‐Zip class, produces a conditional lethal phenotype. The transgenic lines that survive exhibit spontaneous misregulation of cell death control in leaves, which, once initiated, propagates and engulfs the entire leaf. Activation of defence genes, over‐accumulation of ethylene and conjugated salicylic acid, and growth reduction of virulent pathogens also occurs in these plants. In wild‐type plants, H52 is up‐regulated upon infection, mirroring the generation of the oxidative burst which normally precedes the hypersensitive response (HR). Thus, H52 appears to be a transcription factor involved in cellular protection by limiting spread of programmed cell death in plants.

Journal

The Plant JournalWiley

Published: Dec 1, 1999

There are no references for this article.