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Effect of 1-Aminocyclopropane-1-carboxylic acid and aminoethoxyvinylglycine on ethylene emanation and somatic embryogenesis from orchardgrass leaf cultures

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Abstract

Ethylene emanation rates were assessed from leaf tissues of an embryogenic seed plant (Cycle 0) and regeneration cycle plants selected for enhanced embryogenesis (Cycles I, II and IV). In all experiments, ethylene was assessed from the basal 1 cm portion of the innermost leaf. Ethylene emanation was five-fold higher in Cycle II and Cycle IV plants than in Cycle 0 and nonembryogenic (NE) seed plants. After two days culture on Schenk and Hildebrandt medium containing 30 μM dicamba (SH-30), ethylene emanation from Cycle 0 and Cycle II leaf sections increased by 55-fold. Culture of leaf explants for 30 days on SH-30 containing 1 mM 1-aminocyclopropane-1-carboxylic acid (ACC) reduced the embryogenic response by 99%. Treatment of leaf explants with 1 mM aminoethoxyvinylglycine (AVG) reduced ethylene emanation but did not affect embryogenesis. The data indicate that ethylene mediated by ACC may hinder the embryogenic response from orchardgrass leaf cultures.

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Abbreviations

ACC:

1-aminocyclopropane-1-carboxylic acid

AVG:

aminoethoxyvinylglycine

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Authors and Affiliations

  1. Department of Plant and Soil Science, University of Tennessee, P.O. Box 1071, 37901, Knoxville, TN, USA

    D. D. Songstad, P. D. Petracek, C. E. Sams & B. V. Conger

Authors
  1. D. D. Songstad
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  2. P. D. Petracek
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  3. C. E. Sams
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  4. B. V. Conger
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Communicated by J.M. Widholm

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Songstad, D.D., Petracek, P.D., Sams, C.E. et al. Effect of 1-Aminocyclopropane-1-carboxylic acid and aminoethoxyvinylglycine on ethylene emanation and somatic embryogenesis from orchardgrass leaf cultures. Plant Cell Reports 7, 677–679 (1989). https://doi.org/10.1007/BF00272059

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  • DOI: https://doi.org/10.1007/BF00272059

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