Biologia Plantarum

, 28:168 | Cite as

Turion formation and behaviour inSpirodela polyrhiza at two levels of phosphate supply

  • F. Jungnickel
Original Papers


The clone SJ ofSpirodela polyrhiza (L.) Schleiden forms turions under various nutritive conditions. As compared to 1500 μmol 1−1 phosphate (P+), growth and frond yield of mixotropic cultures decreased, when 60 μol 1−1 phosphate (P-) were available. By contrast, P-conditions increased the number, individual size, dry matter content, and total turion yield (mg turions per ml of the nutrient medium) of P-turions as compared to P+ ones. Germination behaviour of P-turions is characterized by fairly low zero levels in the controls, and by low heterogeneity in individual size as well as in the response patterns concerning the influence of light and/or phytoactive substances. P-turions from youngSpirodela cultures are extremely dormant. However, they undergo an after-ripening process if kept inside ageing cultures.


  1. Augsten, H.: Zur Eignung derLemnaceae als Testsystem für Herbizide. - Wiss. Schriftenreihe pädagog. Hochschule Potsdam, Reihe B, Heft35: 86–91, Potsdam 1983.Google Scholar
  2. Augsten, H., Jungnickel, F.: Verfahren zur Ausleseprüfung und Bestimmung phytoäktiver Substanzen. - Patent DD 133595, Int. Cl. G 01 N 33/16, 1979.Google Scholar
  3. Augsten, H., Jungnickel, F.: Zur Steuerung der Turionenausbildung beiSpirodela polyrhiza (L.) Schleiden durch Licht, Phosphat und Zucker. - Wiss. Z. Ernst-Moritz-Arndt-Universität, Greifswald, Math.-nat. Reihe32: 64–66, 1983.Google Scholar
  4. Bornkamm, R.: Die Rolle des Oxalats im Stoffwechsel höherer grüner Pflanzen. - Flora A156: 139–172, 1965.Google Scholar
  5. Czopek, M.: The oligodynamic action of light on the germination of turions ofSpirodela polyrhiza (L.) Schleiden. - Acta Soc. Bot. Pol.31: 703–722, 1962.Google Scholar
  6. Ibrahim, A. R., Jungnickel, F.: Utilization of nitrate inLemna minor (L.) under autotrophic and mixotrophic conditions. - Acta biol. Med. exp.5: 11–17, 1980.Google Scholar
  7. Jungnickel, F.: Phosphatbedarf und Mangelsymptome bei einigen axenisch kultivierten Lemnaceen. - Limnologica (Berlin)11: 469–478, 1978.Google Scholar
  8. Kandeler, R.: Förderung der Blütenbildung vonLemna gibba durch DCMU und ADP. - Z. Pflanzenphysiol.61: 20–28, 1969.Google Scholar
  9. Landolt, E.: Physiologische und ökologische Untersuchungen an Lemnaceen. - Ber. Schweiz. bot. Ges.67: 271–410, 1957.Google Scholar
  10. Malek, L., Cossins, E. A.: Senescence, turion development, and turion germination in nitrate- and sulfate-deficientSpirodela polyrhiza. Relationship between nutrient availability and exogenous cytokinins. - Can. J. Bot.61: 1887–1897, 1983.Google Scholar
  11. Malek, L., Oda, Y.: The effect of red and blue light on turion production. - Plant Physiol. (Suppl.)63: 156, 1979.Google Scholar
  12. Malek, L., Oda, Y.: Germination ofSpirodela polyrhiza turions: the role of culture conditions during turion development. - Plant Cell Physiol.21: 357–361, 1980.Google Scholar
  13. Newton, R. J., Shelton, D. R., Disharoon, S., Duffey, J. E.: Turion formation and germination inSpirodela polyrhiza. - Amer. J. Bot.65: 421–428, 1978.CrossRefGoogle Scholar
  14. Perry, Th. O.: Dormancy, turion formation and germination by different clones ofSpirodela polyrrhiza. - Plant Physiol.43: 1866–1869, 1968.PubMedCrossRefGoogle Scholar
  15. Perry, Th. O., Byrne, O. R.: Turion induction inSpirodela polyrrhiza by abscisic acid. - Plant Physiol.44: 784–785, 1969.PubMedGoogle Scholar
  16. Pieterse, A. H., Bhalla, P. R., Sabharwal, P. S.: Endogenous gibberellins in floating plants and turions ofWolfiella floridana. - Physiol. Plant.24: 512–516, 1971.CrossRefGoogle Scholar
  17. Pirson, A., Seidel, F.: Zell- und Stoffwechselphysiologische Untersuchungen an der Wurzel vonLemna minor L. unter besonderer Berücksichtigung von Kalium- und Kalziummangel. - Planta38: 431–473, 1950.CrossRefGoogle Scholar
  18. Reid, M. S., Bieleski, R. L.: Response ofSpirodela oligorrhiza to phosphorus deficiency. - Plant Physiol.46: 609–613, 1970.PubMedGoogle Scholar
  19. Sibasaki, T., Oda, Y.: Heterogeneity of dormancy in the turions ofSpirodela polyrrhiza. - Plant Cell Physiol.20: 563–571, 1979.Google Scholar
  20. Smart, C. C., Trewavas, A. J.: Abscisic-acid-induced turion formation inSpirodela polyrrhiza L. IV. Comparative ion flux characteristics of the turion and the vegetative frond and the effect of ABA during early turion development. - Plant Cell Environment7: 521–530, 1984.Google Scholar
  21. Steward, G. R.: Abscisic acid and morphogenesis inLemna polyrrhiza L. - Nature221: 61–62, 1969.CrossRefGoogle Scholar

Copyright information

© Academia 1986

Authors and Affiliations

  • F. Jungnickel
    • 1
  1. 1.Sektion Biologie, Wissenschaftsbereich PflanzenphysiologieFriedrich-Schiller-Universität JenaJenaGDR

Personalised recommendations