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Photophysiology of turion germination inSpirodela polyrhiza (L.)Schleiden. The cause of germination inhibition by overcrowding

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Biologia Plantarum

Abstract

Red-light-induced (via phytochrome) germination decreased with increasing numbers of turions per germination flask (overcrowding). Three hypotheses concerning the mechanism of this germination inhibition were tested, related to abscisic acid, ethylene, and oxygen deficiency: (i) Although abscisic acid is a powerful inhibitor of turion germination it had to be excluded as a cause, because abscisic acid was not secreted from turions into the nutrient solution, (ii) Ethylene (ethrel) strongly inhibited growth of newly formed sprouts, but germination response itself was not inhibited, (iii) Germination inhibition did not appear if short light pulses were substituted by continuous irradiation. It reappeared in the presence of the photosynthesis inhibitor 3-(3, 4-dichlorophenyl)-l, 1-dimethylurea, but it was not observed in aerated nutrient solutions, or when Petri dishes instead of Erlenmeyer flasks were used. Decreased oxygen concentrations in the nutrient solution were produced by turion respiration. Consequently, anaerobiosis within the nutrient solution caused by turion respiration was the reason for germination inhibition by overcrowding.

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References

  • Appenroth, K.-J.,Hertel, W.,Augsten, H.: Phytochrome control of turion formation inSpirodela polyrhiza (L.)Schleiden. -Ann. Bot. (in press) 1989a.

  • Appenroth, K.-J., Hertel, W., Jungnickel, F., Augsten, H.: Influence of nutrient deficiency and light on turion formation inSpirodela polyrhiza (L.)Schleiden. - Biochem. Physiol. Pflanzen184:395–403, 1989b.

    CAS  Google Scholar 

  • Appenroth, K.-J., Opfermann, J., Hertel, W., Augsten, H.: Photophysiology of turion germination inSpirodela polyrhiza (L.)Schleiden. II. Influence of after-ripening on germination kinetics. - J. Plant Physiol.135: 274–279, 1989c.

    Google Scholar 

  • Augsten, H., Kunz, E., Appenroth, K.-J.: Photophysiology of turion germination inSpirodela polyrrhiza (L.)Schleiden. I. Phytochrome-mediated responses of light- and dark-grown turions. - J. Plant Physiol.132: 90–93, 1988.

    Google Scholar 

  • Beer, S.: Effects of CO2 and O2 on the photosynthetic O2 evolution ofSpirodela polyrrhiza turions. - Plant Physiol.79:199–201, 1985.

    Article  PubMed  Google Scholar 

  • Bewley, J. D., Black, M.: Physiology and Biochemistry of Seeds in Relation to Germination, Vol. 2. -Springer-Verlag, Berlin - Heidelberg - New York 1982.

    Google Scholar 

  • Czopek, M.: Studies on the external factors inducing the formation of turions inSpirodela polyrrhiza (L.)Schleiden. -Acta Soc. Bot. Pol.32: 199–211, 1963.

    Google Scholar 

  • Czopek, M.: The course of photosynthesis and respiration in germinating turions ofSpirodela polyrrhiza. - Bull. Acad. pol. Sci., Sér. Sci. biol.12: 463–469, 1964.

    CAS  Google Scholar 

  • Färber, E., Königshofer, H., Kandeler, R.: Ethylene production and overcrowding inLemnaceae. - J. Plant Physiol.124: 379–384, 1986.

    Google Scholar 

  • Landolt, E.,Kandeler, R.: The Family ofLemnaceae - a Monographic Study, Vol. 2. Veröff. geobot. Inst. ETH, Stiftung Rübel, Zürich,95. Heft, 1987.

  • Liebert, H.-P.: Zur Kontrolle des lichtinduzierten Wurzelwachstums bei Heterotrophkulturen von Lemna gibba L. durch Phytohormone. - Biol. Rundschau18: 169–171, 1980.

    CAS  Google Scholar 

  • Saks, Y., Negbi, M, Ilan, I.: Involvement of native abscisic acid in the regulation of onset of dormancy inSpirodela polyrrhiza. - Aust. J. Plant Physiol. 7: 73–79, 1980.

    CAS  Google Scholar 

  • Scharfetter, E., Lesemann, G, Kandeler, R.: Ethylene as a flower-promoting agent inLemna.-Phyton (Austria)27: 31–37, 1987.

    CAS  Google Scholar 

  • Sibasaki, T., Oda, Y.: Heterogeneity of dormancy in the turions ofSpirodela polyrrhiza. - Plant Cell Physiol.20: 563–571, 1979.

    CAS  Google Scholar 

  • Sinska, I., Gladon, R. J.: Ethylene and the removal of embryonal apple seed dormancy. - HortScience19: 73–75, 1984.

    CAS  Google Scholar 

  • Smart, C. C., Trewavas, A. J.: Abscisic-acid-induced turion formation inSpirodela polyrrhiza L. I. Production and development of the turion. - Plant Cell Environ.6: 507–514, 1983.

    CAS  Google Scholar 

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Authors and Affiliations

  1. Department of Biology-Plant Physiology, Friedrich Schiller University, von-Hase-Weg 3, DDR-6900, Jenan, German Democratic Republic

    K. -J. Appenroth, Waltraud Hertel & H. Augsten

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  1. K. -J. Appenroth
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  2. Waltraud Hertel
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  3. H. Augsten
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Appenroth, K.J., Hertel, W. & Augsten, H. Photophysiology of turion germination inSpirodela polyrhiza (L.)Schleiden. The cause of germination inhibition by overcrowding. Biol Plant 32, 420–428 (1990). https://doi.org/10.1007/BF02890887

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  • DOI: https://doi.org/10.1007/BF02890887

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