Kowalczyk, Mariusz
- Institutionen för skoglig genetik och växtfysiologi, Sveriges lantbruksuniversitet
Genetic screens have been performed to identify mutants with altered auxin homeostasis in Arabidopsis. A tagged allele of the auxin-overproducing mutant sur2 was identified within a transposon mutagenized population. The SUR2 gene was cloned and shown to encode the CYP83B1 protein, which belongs to the targe family of the P450-dependent monooxygenases. SUR2 expression is up-regulated in sur1 mutants and induced by exogenous auxin in the wild type. Analysis of indole3-acetic acid (IAA) synthesis and metabolism in sur2 plants indicates that the mutation causes a conditional increase in the pool size of IAA through up-regulation of IAA synthesis.
metabolism
Proceedings of the National Academy of Sciences
2000, volym: 97, nummer: 26, sidor: 14819-14824
Utgivare: NATL ACAD SCIENCES
Biokemi
Molekylärbiologi
https://res.slu.se/id/publ/41662