Stress‐induced ripening of the non‐ripening tomato mutant nor

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Abstract

Tomato (Lycopersicon esculentum Mill.) plants of the non‐ripening mutant nor (3rd backcross to the normal cultivar Rutgers) were grown under water stress induced in two different ways: a) reduction of water supply and b) increase in transpiration rate by adding kinetin to the nutrient solution. Both drought treatments induced fruits of the non‐ripening mutant nor to ripen, that is, the parameters characteristic of ripening – red pigment, taste, pectolytic activity, softening, and the evolution rates of CO2 and ethylene – all increased, although not to the normal level. Such an increase does not normally take place in the nor mutant under control conditions. It is suggested that fruits of the nor mutant can be induced to ripen by any kind of water stress. The induction mechanism is still to be explored.

Original languageEnglish
Pages (from-to)213-217
Number of pages5
JournalPhysiologia Plantarum
Volume59
Issue number2
DOIs
StatePublished - 1 Jan 1983

Keywords

  • CO evolution
  • drought
  • ethylene evolution
  • kinetin
  • polymethylgalacturonase

ASJC Scopus subject areas

  • Physiology
  • Genetics
  • Plant Science
  • Cell Biology

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