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The genetic basis of singlet oxygen-induced stress responses of Arabidopsis thaliana.
- Source :
-
Science (New York, N.Y.) [Science] 2004 Nov 12; Vol. 306 (5699), pp. 1183-5. - Publication Year :
- 2004
-
Abstract
- 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.
- Subjects :
- Amino Acid Sequence
Arabidopsis cytology
Arabidopsis growth & development
Arabidopsis Proteins chemistry
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
Photosystem II Protein Complex metabolism
Plant Leaves cytology
Plant Leaves drug effects
Plant Leaves metabolism
Reactive Oxygen Species metabolism
Transformation, Genetic
Arabidopsis genetics
Arabidopsis physiology
Arabidopsis Proteins genetics
Arabidopsis Proteins physiology
Oxidative Stress
Singlet Oxygen metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 1095-9203
- Volume :
- 306
- Issue :
- 5699
- Database :
- MEDLINE
- Journal :
- Science (New York, N.Y.)
- Publication Type :
- Academic Journal
- Accession number :
- 15539603
- Full Text :
- https://doi.org/10.1126/science.1103178