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Expression of auxin‐regulated genes
Author(s) -
Sitbon Folke,
PerrotRechenmann Catherine
Publication year - 1997
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1997.tb03048.x
Subject(s) - auxin , gene , biology , microbiology and biotechnology , gene expression , genetics , botany , computational biology
Auxins constitute a small class of plant hormones having profound effects on plant development. Among the fastest cellular responses to auxin addition is an alteration of gene expression, and the abundance of several mRNA species has been shown to increase, or decrease, within minutes to hours after auxin treatment. The regulation of this process appears, at least partly, to be at the transcriptional level. Using differential screening approaches, a number of auxin‐regulated cDNAs and genes have been isolated, mainly from elongating tissues and dividing cells. In addition, an influence of auxin on the regulation of genes isolated for other purposes has also been revealed. With respect to kinetic and dose‐response characteristics, as well as to cellular expression and hormonal specificity, individual auxin‐regulated genes seem to be regulated very differently. possibly reflecting different modes of auxin action. The present article gives an overview of the expression and function of genes whose mRNA levels have been demonstrated to be altered after auxin treatment, and relates altered gene expression patterns to known auxin responses at the cellular or whole plant level.