Publication Date:
2004-11-13
Description:
Plants under oxidative stress suffer from damages that have been interpreted as unavoidable consequences of injuries inflicted upon plants by toxic levels of reactive oxygen species (ROS). However, this paradigm needs to be modified. Inactivation of a single gene, EXECUTER1, is sufficient to abrogate stress responses of Arabidopsis thaliana caused by the release of singlet oxygen: External conditions under which these stress responses are observed and the amounts of ROS that accumulate in plants exposed to these environmental conditions do not directly cause damages. Instead, seedling lethality and growth inhibition of mature plants result from genetic programs that are activated after the release of singlet oxygen has been perceived by the plant.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wagner, Daniela -- Przybyla, Dominika -- Op den Camp, Roel -- Kim, Chanhong -- Landgraf, Frank -- Lee, Keun Pyo -- Wursch, Marco -- Laloi, Christophe -- Nater, Mena -- Hideg, Eva -- Apel, Klaus -- New York, N.Y. -- Science. 2004 Nov 12;306(5699):1183-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Plant Sciences, Plant Genetics, Swiss Federal Institute of Technology (ETH), CH-8092 Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15539603" target="_blank"〉PubMed〈/a〉
Keywords:
Amino Acid Sequence
;
Arabidopsis/cytology/*genetics/growth & development/*physiology
;
Arabidopsis Proteins/chemistry/*genetics/*physiology
;
Cell Death/drug effects
;
Chromosome Mapping
;
Cloning, Molecular
;
Cosmids
;
Darkness
;
Diuron/pharmacology
;
Gene Expression Regulation, Plant
;
Genes, Plant
;
Genetic Complementation Test
;
Light
;
Molecular Sequence Data
;
Mutation
;
Open Reading Frames
;
*Oxidative Stress
;
Photosystem II Protein Complex/metabolism
;
Plant Leaves/cytology/drug effects/metabolism
;
Reactive Oxygen Species/metabolism
;
Singlet Oxygen/*metabolism
;
Transformation, Genetic
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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