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Effect of Calcium and Calmodulin Antagonists on Ethylene Biosynthesis in Tomato Fruits by Charles K Njoroge; Eduardo L Kerbel; Donald P Briskin is a Agricultural and Biological Sciences article available to read on EtoBox.

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The aim of this work was to elucidate the mode of action of calcium in calcium-inhibited ethylene biosynthesis. In one experiment, mature green tomatoes were treated with 1É5% (w/v) N-6(aminohexyl)-1-naphthalene-CaCl 2 ] 60 lM sulphonamide (W5). 1É5% (w/v) N-6(aminohexyl)-5-chloro-1-CaCl 2 ] 60 lM naphthalenesulphonamide (W7), 1É5% (w/v) alone or distilled water CaCl 2 (control). The control and the W7 treatment had much higher ethylene production than either the treatment alone or the treatment. In CaCl 2 CaCl 2 ] W5 another experiment, similar tomatoes were treated with 1É5% (w/v) CaCl 2 ] 15 lM triÑuoperazine (TFP). 1É5% (w/v) only, or distilled water (control). CaCl 2 The treatment with 1É5% TFP gave higher ethylene production CaCl 2 ] 15 lM than 1É5% (w/v) without TFP, and nearly the same level as the control CaCl 2 towards the end of the experimental period. For enzyme and intermediate metabolite assays, mature green tomatoes were treated with 1É5% (w/v) CaCl 2 plus either W5 or W7. W5 treatment had a lower ethylene forming enzyme (EFE) activity, higher 1-aminocyclopropane-1-carboxylic acid (ACC) concentration, similar levels of ACC synthase activity and 1-(malonylamino)-cycl

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Author

Charles K Njoroge; Eduardo L Kerbel; Donald P Briskin

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0022-5142)

Published

1998

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)