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Shedding light on flower development: phytochrome B regulates gynoecium formation in association with the transcription factor SPATULA
- Source :
- Plant signalingbehavior. 6(4)
- Publication Year :
- 2011
-
Abstract
- Accurate development of the gynoecium, the female reproductive organ, is necessary to achieve efficient fertilization. In Arabidopsis, the correct patterning of the apical-basal axis of the gynoecium requires the establishment of a morphogenic gradient of auxin. This allows the production of specialized tissues, whose roles consist of attracting pollen, allowing pollen tube growth and protecting the ovules within the ovaries. Mutations in the bHLH transcription factor SPATULA (SPT) are known to impair the development of the apical tissues of the gynoecium. Here, we show that the spt phenotype is rescued by the removal of phytochrome B, and discuss how light signaling may control flower development.
- Subjects :
- Gynoecium
Short Communication
Arabidopsis
Plant Science
Flowers
medicine.disease_cause
Auxin
Gene Expression Regulation, Plant
Phytochrome B
Pollen
Botany
medicine
Basic Helix-Loop-Helix Transcription Factors
Ovule
Transcription factor
chemistry.chemical_classification
biology
Arabidopsis Proteins
food and beverages
biology.organism_classification
Plants, Genetically Modified
Phenotype
Cell biology
chemistry
Pollen tube
Subjects
Details
- ISSN :
- 15592324
- Volume :
- 6
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- Plant signalingbehavior
- Accession number :
- edsair.doi.dedup.....de094f5b3884f3967d495ff4c5eb8588