link.springer.com

Developmental anatomy of the shoot apical cell, rhizophore and root ofSelaginella uncinata - Journal of Plant Research

  • ️Kato, Masahiro
  • ️Fri Sep 01 1989

Abstract

The developmental anatomy of the shoot apex, rhizophore and root ofSelaginella uncinata was examined by the semi-thin section method. The shoot apex has a single, lens-shaped apical cell with two cutting faces. Rhizophore primordia are initiated exogenously at the branching point of the second youngest lateral shoot. The rhizophore apex has a tetrahedral apical cell with three cutting faces. A pair of root primordia is initiated endogenously from inner cells of the rhizophore apex, after the rhizophore apical cell becomes unidentifiable losing its activity, and subsequently a root cap is formed from the distal face of the root apical cell. During the course of successive root branching the apical cell in an original root apical meristem becomes unidentifiable and then a new apical cell is initiated in each of the bifurcated root apical meristems. The root branching mode seems to be equivalent to the described dichotomous branching mode of fern shoots. Our results demonstrate a distinct morphogenetical difference between the rhizophore and the root, and confirm the exogenous origin of the rhizophore, as described for other species ofSelaginella. This evidence indicates that the rhizophore is not an aerial root but a leafless, root-producing axial organ.

Access this article

Log in via an institution

Subscribe and save

  • Get 10 units per month
  • Download Article/Chapter or eBook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Bierhorst, D.W. 1971. Morphology of Vascular Plants. Macmillan, New York.

    Google Scholar 

  • Bruchmann, H. 1905. Von den Wurzelträgern derSelaginella Kraussiana A. Br. Flora95: 150–166.

    Google Scholar 

  • Cusick, F. 1954. Experimental and analytical studies of pteridophytes XXV. Morphogenesis inSelaginella Willdenovii Baker II. Angle-meristems and angle-shoots. Ann. Bot. N.S.18: 171–181.

    Google Scholar 

  • Dengler, N.G. 1983. The developmental basis of anisophylly inSelaginella martensii. I. Initiation and morphology of growth. Amer. J. Bot.70: 181–192.

    Article  Google Scholar 

  • Foster, A.S. andE.M. Gifford, Jr. 1974. Comparative Morphology of Vascular Plants. 2nd ed. Freeman and Company, Fan Francisco.

    Google Scholar 

  • Grenville, D.J. andR.L. Peterson. 1981. Structure of aerial and subterranean roots ofSelaginella kraussiana A. Br. Bot. Gaz.142: 73–81.

    Article  Google Scholar 

  • Guttenberg, H. von. 1966. Histogenese der Pteridophyten. Handbuch der Pflanzenanatomie. Band 7, Teil 2. Gebrüder Borntraeger, Berlin-Nikolassee.

    Google Scholar 

  • Hagemann, W. 1980. Über den Verzweigungsorgang beiPsilotum undSelaginella mit Anmerkungen zum Begriff der Dichotomie. Pl. Syst. Evol.133: 181–197.

    Article  Google Scholar 

  • — andU. Schulz. 1978. Wedelanlegung und Rhizomverzweigung bei einigen Gleicheniaceen. Bot. Jahrb. Syst.99: 380–399.

    Google Scholar 

  • Jacobs, W.P. 1988. Development of procambium, xylem, and phloem in the shoot apex ofSelaginella. Bot Gaz.149: 64–70.

    Article  Google Scholar 

  • Jernstedt, J.A. andM.A. Mansfield. 1985. Two-dimensional gel electrophoresis of polypeptides from stems, roots, leaves, and rhizophores ofSelaginella kraussiana. Bot. Gaz.146: 460–465.

    Article  CAS  Google Scholar 

  • Kato, M. 1983. The classification of major groups of pteridophytes. J. Fac. Sci. Univ. Tokyo III,13: 263–283.

    Google Scholar 

  • Mueller, R.J. 1982. Shoot morphology of the climbing fernLygodium (Schizaeaceae): general organography, leaf initiation and branching. Bot. Gaz.143: 319–330.

    Article  Google Scholar 

  • Nägeli, C. andH. Leitgeb. 1868. Entstehung und Wachstum der Wurzeln. Beitr. Wiss. Bot.4: 124–158.

    Google Scholar 

  • Ogura, Y. 1972. Comparative Anatomy of Vegetative Organs of the Pteridophytes. Gebrüder Borntraeger, Berlin.

    Google Scholar 

  • Popham, R.A. 1951. Principal types of vegetative shoot apex organization in vascular plants. Ohio J. Sci.51: 249–270.

    Google Scholar 

  • Siegert, A. 1974. Die Verzweigung der Selaginellen unter Berücksichtigung der Keimungsgeschichte. Beitr. Biol. Pfl.50: 21–112.

    Google Scholar 

  • Webster, T.R. 1969. An investigation of angle-meristem development in excised stem segments ofSelaginella martensii. Can. J. Bot.47: 717–722.

    Google Scholar 

  • — andR. Jagels. 1977. Morphology and development of aerial roots ofSelaginella martensii grown in moist containers. Can. J. Bot.55: 2149–2158.

    Google Scholar 

  • — andT.A. Steeves. 1963. Morphology and development of the root ofSelaginella densa Rydb. Phytomorphology13: 367–376.

    Google Scholar 

  • ——. 1964. Developmental morphology of the root ofSelaginella kraussiana A. Br. andSelaginella wallacei Hieron. Can. J. Bot.42: 1665–1676.

    Google Scholar 

  • ——. 1967. Developmental morphology of the root ofSelaginella martensii Spring. Can. J. Bot.45: 395–404.

    Google Scholar 

  • Williams, S. 1931. An analysis of the vegetative organs ofSelaginella grandii Moore, together with some observations on abnormalities and experimental results. Trans. Roy. Soc. Edinburgh57: 1–21.

    Google Scholar 

  • Wochok, Z.S. andD.L. Clayton. 1978. Comparison of determined and undetermined meristems ofSelaginella willdenovii Baker. Cytobios21: 103–111.

    PubMed  CAS  Google Scholar 

  • — andI.M. Sussex. 1974. Morphogenesis inSelaginella II. Auxin transport in the root (rhizophore). Plant Physiol.53: 738–741.

    Article  PubMed  CAS  Google Scholar 

  • —. 1975. Morphogenesis inSelaginella III. Meristem determination and cell differentiation. Develop. Biol.47: 376–383.

    Article  PubMed  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Faculty of Agriculture, Tamagawa University, 6-1-1 Tamagawagakuen, Machida, 194, Tokyo

    Ryoko Imaichi

  2. Botanical Gardens, Faculty of Science, University of Tokyo, 3-7-1 Hakusan, Bunkyo-ku, 112, Tokyo

    Masahiro Kato

Authors

  1. Ryoko Imaichi

    You can also search for this author in PubMed Google Scholar

  2. Masahiro Kato

    You can also search for this author in PubMed Google Scholar

About this article

Cite this article

Imaichi, R., Kato, M. Developmental anatomy of the shoot apical cell, rhizophore and root ofSelaginella uncinata . Bot. Mag. Tokyo 102, 369–380 (1989). https://doi.org/10.1007/BF02488120

Download citation

  • Received: 13 February 1989

  • Accepted: 18 May 1989

  • Issue Date: September 1989

  • DOI: https://doi.org/10.1007/BF02488120

Key words