The Role of KN1 in Plant Development

  • Sarah Hake

Abstract

Cell communication is an ubiquitous feature of plant development; plant cells divide, expand, and differentiate in concerted action. Genetically distinct cells adopt alternate fates depending on their neighbors, in fact, the fates of all cells are most decisively determined by their neighbors. The question remains, not whether cell communication signals play a role, but what are these signals and how do they function? I will discuss areas of development that high-light the role of cell communication, and then suggest that KN1 may be one of the mediators.

Keywords

Maize Polypeptide Gibberellin Alan eDNA 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Akam, M., 1987, The molecular basis for metameric pattern in the Drosophila embryo, Development 101:1–22.PubMedGoogle Scholar
  2. Becraft, P. W., Bongard-Pierce, D. K., Sylvester, A. W., Poethig, R. S., and Freeling, M., 1990, The liguleless-1 gene acts tissue specifically in maize leaf development, Dev. Biol 141:220–232.PubMedCrossRefGoogle Scholar
  3. Bryan, A. A., and Sass, J. E., 1941, Heritable characters in maize, J. Hered. 32:343–346.Google Scholar
  4. Freeling, M., and Hake, S., 1985, Developmental genetics of mutants that specify Knotted leaves in maize, Genetics 111:617–634.PubMedGoogle Scholar
  5. Gelinas, D., Postlethwait, S. N., and Nelson, O. E., 1969, Characterization of development in maize through the use of mutants. II. The abnormal growth conditioned by the Knotted mutant, Am. J. Bot. 56:671–678.CrossRefGoogle Scholar
  6. Green, P. B., 1989, Shoot morphogenesis, vegetative through floral, from a biophysical perspective, in: “Plant Reproduction: Green, P. B., eds., pp. 58–75, Amer. Soc. Plant Physiol., Rockville, MD.Google Scholar
  7. Hake, S., 1992, Unraveling the knots in plant development, Trends Genet. 8:109–114.PubMedGoogle Scholar
  8. Hake, S., Bird, R. M., Neuffer, M. G., and Freeling, M., 1985, Development of the maize ligule and mutants that affect it, in: “Plant Genetics,” M. Hake, S., Bird, R. M., Neuffer, M. G., and Freeling, M., ed., pp. 61–71, Alan R. Liss, Inc, New York.Google Scholar
  9. Hake, S., and Freeling, M., 1986, Analysis of genetic mosaics shows that the extra epidermal cell divisions in Knotted mutant maize plants are induced by adjacent mesophyll cells, Nature 320:621–623.CrossRefGoogle Scholar
  10. Hake, S., and Sinha, N., 1991, Genetic analysis of leaf development, Ox. Surv. Plant Mol Cell Biol 7:in press.Google Scholar
  11. Harberd, N. P., and Freeling, M., 1989, Genetics of dominant gibberellin-insensitive dwarfism in maize, Genetics 121:827–838.PubMedGoogle Scholar
  12. Ingham, P. W., 1988, The molecular genetics of embryonic pattern formation in Drosophila, Nature 335:25–34.CrossRefGoogle Scholar
  13. Jesuthasan, S., and Green, P. B., 1989, On the mechanism of decussate phyllotaxis: biophysical studies on the tunica layer of Vinca major, Amer. J. Bot. 76:1152–1166.CrossRefGoogle Scholar
  14. Langdale, J. A., Lane, B., Freeling, M, and Nelson, T., 1989, Cell lineage analysis of maize bundle sheath and mesophyll cells, Dev. Biol. 133:128–139.PubMedCrossRefGoogle Scholar
  15. POETHIG, R. S., COE JR., E. H., and JOHRI, M. M., 1986, Cell lineage patterns in maize embryogenesis: a clonal analysis, Dev. Biol. 117:392–404.CrossRefGoogle Scholar
  16. SINHA, N., and HAKE, S., 1990, Mutant characters of Knotted maize leaves are determined in the innermost tissue layers, Dev. Biol 141:203–210.PubMedCrossRefGoogle Scholar
  17. SMITH, L., GREENE, B., VEIT, B. and HAKE, S., 1992, A dominant mutation in the maize homeobox gene, Knotted-1 causes its ectopic expression in leaf cells with altered fates, Development in press.Google Scholar
  18. SYLVESTER, A. W., CANDE, W. Z., and FREELING, M, 1990, Division and differentiation durng normal and liguleless-1 maize leaf development, Development 110:985–1000.PubMedGoogle Scholar
  19. VOLLBRECHT, E., VEIT, B., SINHA, N., and HAKE, S., 1991, The developmental gene Knotted-1 is a member of a maize homeobox gene family, Nature 350:241–243.PubMedCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1993

Authors and Affiliations

  • Sarah Hake
    • 1
  1. 1.USDA/U.C. Berkeley Plant Gene Expression CenterAlbanyUSA

Personalised recommendations