New Zealand Journal of Crop and Horticultural Science abstracts
Protein synthesis inhibitors accelerate the postharvest senescence
of asparagus and induce tiprot
PAUL L. HURST
WILHELMINA M. BORST
BEN K. SINCLAIR
New Zealand Institute for Crop & Food
Research Limited
Levin Research Centre
Private Bag 4005
Levin, New Zealand
Abstract In an attempt to delay the postharvest senescence of
asparagus (Asparagus officinalis L.), protein synthesis inhibitors were
fed to spears by immersing their butt ends in solutions of either actinomycin D
or cycloheximide. These treatments, which are known to retard the senescence of
excised flowers and leaves, accelerated the postharvest senescence of spears
rather than delaying it. Shelf-life and spear elongation were both reduced.
Spear tips had lower concentrations of hexose and asparagine, and an increased
incidence of the postharvest disorder, tiprot, than did tips of control
(water-fed) spears. The significance of these observations on the etiology of
tiprot is discussed.
Keywords actinomycin D; asparagus; Asparagus
officinalis; cycloheximide; shelf-life; tiprot
New Zealand Journal of Crop and Horticultural Science, 1996, Vol. 24:
191-197
0114-0671/96/2402-0191 $2.50/0 (c) The Royal Society of New Zealand
1996
PDF file of entire paper: medium quality (547K); (scanned from paper original: notes about this process)
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