Back to Search
Start Over
Inflorescence deficient in abscission controls floral organ abscission in Arabidopsis and identifies a novel family of putative ligands in plants
- Source :
- The Plant cell. 15(10)
- Publication Year :
- 2003
-
Abstract
- Abscission is an active process that enables plants to shed unwanted organs. Because the purpose of the flower is to facilitate pollination, it often is abscised after fertilization. We have identified an Arabidopsis ethylene-sensitive mutant, inflorescence deficient in abscission (ida), in which floral organs remain attached to the plant body after the shedding of mature seeds, even though a floral abscission zone develops. The IDA gene, positioned in the genomic DNA flanking the single T-DNA present in the ida line, was identified by complementation. The gene encodes a small protein with an N-terminal signal peptide, suggesting that the IDA protein is the ligand of an unknown receptor involved in the developmental control of floral abscission. We have identified Arabidopsis genes, and cDNAs from a variety of plant species, that encode similar proteins, which are distinct from known ligands. IDA and the IDA-like proteins may represent a new class of ligands in plants.
- Subjects :
- Signal peptide
DNA, Plant
Mutant
Molecular Sequence Data
Arabidopsis
Plant Science
Flowers
Biology
Ligands
Polymerase Chain Reaction
Abscission
Gene Expression Regulation, Plant
hemic and lymphatic diseases
Botany
Amino Acid Sequence
Gene
DNA Primers
Base Sequence
Sequence Homology, Amino Acid
Arabidopsis Proteins
fungi
nutritional and metabolic diseases
food and beverages
Cell Biology
Floral organ abscission
biology.organism_classification
Cell biology
Complementation
Phenotype
Inflorescence
Mutagenesis
Sequence Alignment
Gene Deletion
Research Article
Subjects
Details
- ISSN :
- 10404651
- Volume :
- 15
- Issue :
- 10
- Database :
- OpenAIRE
- Journal :
- The Plant cell
- Accession number :
- edsair.doi.dedup.....b102665167bf22fc3af675495ba54c80