» Articles » PMID: 16666898

Interruption of Somatic Embryogenesis in Daucus Carota L. by 5-Bromodeoxyuridine

Overview
Journal Plant Physiol
Specialty Physiology
Date 1989 Jul 1
PMID 16666898
Citations 2
Authors
Affiliations
Soon will be listed here.
Abstract

Embryogenic Daucus carota L. cells grown in 9 micromolar 2.4-dichlorophenoxyacetic acid are resistant to greater than 5 micromolar 5-bromodeoxyuridine (BrdU). In contrast, 5 micromolar BrdU strongly inhibits somatic embryogenesis within 24 hours after transfer of cells to an auxin-free medium. DNA synthesis rates in control and BrdU-treated cultures are rapid and similar; however, the DNA content does not reach levels as great in the presence of BrdU as in control cultures. BrdU substitutes for thymidine in the DNA in 28% of the available sites 48 hours after auxin removal. Following DNA repair, somatic embryogenesis resumes. BrdU DNA incorporation leads to somatic embryogenesis inhibition and provides an alternative to auxin treatment for the interruption of carrot cell culture differentiation.

Citing Articles

Carrot (Daucus carota) hypocotyl transformation usingAgrobacterium tumefaciens.

Thomas J, Guiltinan M, Bustos S, Thomas T, Nessler C Plant Cell Rep. 2013; 8(6):354-7.

PMID: 24233274 DOI: 10.1007/BF00716672.


Influence of NaCl on Growth, Proline, and Phosphoenolpyruvate Carboxylase Levels in Mesembryanthemum crystallinum Suspension Cultures.

Thomas J, De Armond R, Bohnert H Plant Physiol. 1992; 98(2):626-31.

PMID: 16668687 PMC: 1080236. DOI: 10.1104/pp.98.2.626.

References
1.
Sung Z, Okimoto R . Coordinate gene expression during somatic embryogenesis in carrots. Proc Natl Acad Sci U S A. 1983; 80(9):2661-5. PMC: 393887. DOI: 10.1073/pnas.80.9.2661. View

2.
Choi J, Liu L, Borkird C, Sung Z . Cloning of genes developmentally regulated during plant embryogenesis. Proc Natl Acad Sci U S A. 1987; 84(7):1906-10. PMC: 304550. DOI: 10.1073/pnas.84.7.1906. View

3.
Kornberg A . DNA replication. J Biol Chem. 1988; 263(1):1-4. View

4.
Gorman C, Moffat L, Howard B . Recombinant genomes which express chloramphenicol acetyltransferase in mammalian cells. Mol Cell Biol. 1982; 2(9):1044-51. PMC: 369897. DOI: 10.1128/mcb.2.9.1044-1051.1982. View

5.
Hernandez P, Lamm S, Bjerknes C, Hof J . Replication termini in the rDNA of synchronized pea root cells (Pisum sativum). EMBO J. 1988; 7(2):303-8. PMC: 454311. DOI: 10.1002/j.1460-2075.1988.tb02813.x. View