Stay-green regulates chlorophyll and chlorophyll-binding protein degradation during senescence.
- Hörtensteiner S Zurich-Basel Plant Science Center, Institute of Plant Biology, University of Zurich, CH-8008 Zurich, Switzerland. shorten@botinst.uzh.ch
- 2009-02-25
Published in:
- Trends in plant science. - 2009
Amino Acid Sequence
Cellular Senescence
Chlorophyll
Light-Harvesting Protein Complexes
Molecular Sequence Data
Mutation
Plant Proteins
Protein Processing, Post-Translational
English
Stay-green mutants are delayed in leaf senescence and have been identified from different plant species, including many crops. Functional stay-greens have the potential to increase plant productivity. In cosmetic stay-greens, however, retention of chlorophyll during senescence is uncoupled from a decline of photosynthetic capacity in these mutants. For many cosmetic stay-green mutants, including Gregor Mendel's famous green cotyledon pea variety, molecular defects were recently identified in orthologous stay-green genes. Stay-green genes encode members of a new family of chloroplast-located proteins, which are likely to function in dismantling of photosynthetic chlorophyll-apoprotein complexes. Their activity is considered as a prerequisite for both chlorophyll and apoprotein degradation during senescence.
- Language
-
- English
- Open access status
- green
- Identifiers
-
- DOI 10.1016/j.tplants.2009.01.002
- PMID 19237309
- Persistent URL
- https://sonar.ch/global/documents/253176
Statistics
Document views: 80
File downloads:
- Full-text: 0