Gene for a protein capable of enhancing lateral root formation.
Analysis of genes preferentially expressed in hairy roots caused by infection with Agrobacterium rhizogenes has provided insights into the regulation of lateral root formation. A hairy root preferential cDNA, HR7, has been cloned from hairy roots of Hyoscyamus niger. HR7 encodes a novel protein partially homologous to a metallocarboxypeptidase inhibitor and is expressed exclusively in the primordium and base of lateral roots in hairy roots. Overexpression of HR7 in transgenic roots of H. niger dramatically enhances the frequency of lateral root formation. The results of this study indicate that expression of HR7 plays a critical role in initiating lateral root formation.
Mikami
Y
Y
Laboratory of Pharmacognosy, School of Pharmaceutical Sciences, University of Shizuoka, Japan.
Horiike
G
G
Kuroyanagi
M
M
Noguchi
H
H
Shimizu
M
M
Niwa
Y
Y
Kobayashi
H
H
D000595:Amino Acid Sequence; D001483:Base Sequence; D018744:DNA, Plant; D015870:Gene Expression; D017343:Genes, Plant; D018551:Solanum lycopersicum; D008969:Molecular Sequence Data; D010937:Plant Growth Regulators; D010940:Plant Proteins / Q000235:genetics* / Q000502:physiology*; D018517:Plant Roots / Q000502:physiology*; D017422:Sequence Analysis, DNA; D017386:Sequence Homology, Amino Acid; D011198:Solanum tuberosum
D018744:DNA, Plant; C119672:HR7 protein, Hyoscyamus niger; D010937:Plant Growth Regulators; D010940:Plant Proteins