, Volume 51, Issue 9–10, pp 990–993 | Cite as

Plant growth regulators from ash strains ofPseudomonas syringae subsp.savastanoi

  • A. Evidente
  • E. Di Maio
  • A. Caponero
  • N. S. Iacobellis
Research Articles


Indole-3-acetic acid and its methyl ester have been isolated from cultures ofPseudomonas syringae subsp.savastanoi isolated from ash. However, typical strains produced only small amounts of the auxins, whereas relatively high amounts of the above phytohormones accumulated in the culture of an atypical strain. No cytokinins were isolated from cultures of the typical ash strains. Conversely, four cytokinins, namely dihydrozeatin and its 9-β-riboside,trans-zeatin riboside and its 1″-methyl derivative, were found in an atypical strain culture.

Key words

Pseudomonas syringae subsp.savastanoi ash ash bacterial canker phytohormones auxins cytokinins indole-3-acetic acid methyl ester dihydrozeatin riboside 


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Copyright information

© Birkhäuser Verlag Basel 1995

Authors and Affiliations

  • A. Evidente
    • 1
  • E. Di Maio
    • 1
  • A. Caponero
    • 2
  • N. S. Iacobellis
    • 3
  1. 1.Dipartimento di Scienze Chimico-AgrarieUniversità di Napoli ‘Federico II’Portici
  2. 2.Dipartimento di Patologia VegetaleUniversità di BariBari
  3. 3.Dipartimento di Biologia, Difesa e Biotecnologie Agro ForestaliUniversità degli Studi della BasilicataPotenza(Italy)

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