Cloning of genes whose expression is correlated with mitosis and localized in dividing cells in root caps of Pisum sativum L.

Ho Hyung Woo, Martha C Hawes

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

Removal of border cells from pea roots synchronizes and induces root cap cell division, wall biogenesis and differentiation. Three messages which are expressed differentially in such induced root caps have been cloned. Sequence analyses showed that the PsHRGP1-encoded protein has high homology with a hydroxyproline-rich glycoprotein. The PsCaP23-encoded protein has high homology with an alfalfa callus protein or translationally controlled human or mouse tumor protein P23. The PsRbL41-encoded protein has high homology with a highly basic 60S ribosomal protein L41. In situ hybridization showed that PsHRGP1, PsCaP23 and PsRbL41 messages are localized within dividing cells of the root cap. PsHRGP1 is highly expressed in uninduced root caps, but its message is repressed by 10-11 times as soon as cell division and differentiation begin. Expression of PsHRGP1 recovers to higher than (180%) its initial level in 30 min. PsHRGP1 is root-specific. PsCaP23 and PsRbL41 messages increase ca. 3-fold within 15 min after root cap induction. All three genes represent small families of 3-5 closely related genes in the pea genome.

Original languageEnglish (US)
Pages (from-to)1045-1051
Number of pages7
JournalPlant Molecular Biology
Volume35
Issue number6
DOIs
StatePublished - Dec 1997

Fingerprint

root cap
Cloning
Peas
Mitosis
Gene expression
mitosis
Pisum sativum
Organism Cloning
molecular cloning
Gene Expression
gene expression
Genes
Cell Division
Proteins
proteins
Cells
cells
cell division
peas
Medicago sativa

Keywords

  • Callus protein P23
  • Hydroxyproline-rich glycoprotein
  • Ribosomal protein L41
  • Root cap cell differentiation
  • Whole mount in situ hybridization

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry

Cite this

Cloning of genes whose expression is correlated with mitosis and localized in dividing cells in root caps of Pisum sativum L. / Woo, Ho Hyung; Hawes, Martha C.

In: Plant Molecular Biology, Vol. 35, No. 6, 12.1997, p. 1045-1051.

Research output: Contribution to journalArticle

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