A gene encoding a protein modified by the phytohormone indoleacetic acid
AUTOR(ES)
Walz, Alexander
FONTE
The National Academy of Sciences
RESUMO
We show that the expression of an indole-3-acetic acid (IAA)-modified protein from bean seed, IAP1, is correlated to the developmental period of rapid growth during seed development. Moreover, this protein undergoes rapid degradation during germination. The gene for IAP1, the most abundant protein covalently modified by IAA (iap1, GenBank accession no. AF293023) was isolated and cloned from bush bean (Phaseolus vulgaris) seeds. The 957-bp sequence encodes a 35-kDa polypeptide. IAA-modified proteins represent a distinct class of conjugated phytohormones and appear in bean to be the major form of auxin in seeds. IAA proteins also are found at other stages of development in bean plants. Our immunological and analytical data suggest that auxin modification of a small class of proteins may be a feature common to many plants.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=122257Documentos Relacionados
- Studies on the Mechanism of Phytohormone Damage by Ionizing Radiation. I. The Radiosensitivity of Indoleacetic Acid. 1
- Presence of abscisic acid, a phytohormone, in the mammalian brain.
- Promotion of Indoleacetic Acid Oxidase Isoenzymes in Tobacco Callus Cultures by Indoleacetic Acid 1
- Cotranscription of genes encoding indoleacetic acid production in Pseudomonas syringae subsp. savastanoi.
- A Further Investigation of the Replacement of Boron by Indoleacetic Acid 1
