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Gibberellin-like activity in suspensors of Tropaeolum majus L. and Cytisus laburnum L.

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Abstract

Gibberellins in the embryo-suspensor system have been considered so far only in Phaseolus coccineus. We present in this report the localization of gibberellin-like substances in the suspensors of Tropaeolum majus L. and Cytisus laburnum L. The total gibberellin activity (expressed as gibberellic-acid equivalent in the α-amylase bioassay) in 2000 suspensors (106 mg fresh weight; FW) of C. laburnum and in 600 suspensors (236 mg FW) of T. majus were 50.9 μg g-1 FW and 8.9 μg g-1 FW respectively.

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Abbreviations

GA:

gibberellin

References

  • Alpi, A., Lorenzi, R., Cionini, P.G., Bennici, A., D'Amato, F. (1979) Identification of gibberellin A1 in the embryo suspensor of Phaseolus coccineus. Planta 147, 225–228

    Google Scholar 

  • Alpi, A., Tognoni, F., D'Amato, F. (1975) Growth regulator levels in embryo and suspensor of Phaseolus coccineus at two stages of development. Planta 127, 153–162

    Google Scholar 

  • Ceccarelli, N., Lorenzi, R., Alpi, A. (1981) Gibberellin biosynthesis in Phaseolus coccineus suspensor. Z. Pflanzenphysiol. 102, 37–44

    Google Scholar 

  • Cionini, P.G., Bennici, A., Alpi, A., D'Amato, F. (1976) Suspensor, gibberellin and in vitro development of Phaseolus coccineus embryos. Planta 131, 115–117

    Google Scholar 

  • Corsi, G. (1972) The suspensor of Eruca sativa Miller (Cruciferae) during embryogenesis in vitro. G. Bot. Ital. 106, 41–54

    Google Scholar 

  • Jones, R.L., Varner, J.E. (1967) The bioassay of gibberellins. Planta 72, 155–161

    Google Scholar 

  • Koshioka, M., Takeno, K., Beall, F.D., Pharis, R.P. (1983) Purification and separation of plant gibberellins from their precursors and glucosyl conjugates. Plant Physiol. 73, 398–406

    Google Scholar 

  • Lorenzi, R., Bennici, A., Cionini, P.G., Alpi, A., D'Amato, F. (1978) Embryo-suspensor relations in Phaseolus coccineus: cytokinins during seed development. Planta 143, 59–62

    Google Scholar 

  • Maheswari, P. (1950) An introduction to the embryology of Angiosperms. McGraw-Hill, New York

    Google Scholar 

  • Nagl, W. (1974) The Phaseolus suspensor and its polytene chromosomes. Z. Pflanzenphysiol 73, 1–44

    Google Scholar 

  • Ponzi, R., Pizzolongo, P. (1972) The ultrastructure of suspensor cells in Ipomea purpurea Roth. J. Submicrosc. Cytol. 4, 199–204

    Google Scholar 

  • Przybyllok, T., Nagl, W. (1977) Auxin concentration in the embryo and suspensor of Tropaeolum majus, as determined by mass fragmentation (single ion detection). Z. Pflanzenphysiol. 84, 463–465

    Google Scholar 

  • Yeung, E.C. (1980) Embryogeny of Phaseolus: the role of the suspensor. Z. Pflanzenphysiol. 96, 17–28

    Google Scholar 

  • Yeung, E.C., Sussex, I.M. (1979) Embryogeny of Phaseolus coccineus: the suspensor and the growth of the embryoproper in vitro. Z. Pflanzenphysiol. 91, 423–433

    Google Scholar 

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Picciarelli, P., Alpi, A., Pistelli, L. et al. Gibberellin-like activity in suspensors of Tropaeolum majus L. and Cytisus laburnum L.. Planta 162, 566–568 (1984). https://doi.org/10.1007/BF00399924

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  • DOI: https://doi.org/10.1007/BF00399924

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