Journal of Experimental Botany, Vol. 51, No. 349, pp. 1471-1473,
August 2000
© 2000 Oxford University Press
Short Communications |
Non-invasive photoacoustic spectroscopic determination of relative endogenous nitric oxide and ethylene content stoichiometry during the ripening of strawberries Fragaria anannasa (Duch.) and avocados Persea americana (Mill.)1
Faculty of Life Sciences, Jacob Vainstein Chair of Biblical Botany, Bar-Ilan University, Ramat Gan 52900, Israel
Abstract
Employing non-invasive photoacoustic spectrometry, emissions of nitric oxide (NO) and ethylene in post-harvest strawberries and avocados were monitored. A clear-cut stoichiometric relationship was found between the two gases: unripe fruit manifesting high NO and low ethylene levelsthe converse in ripe fruit. Findings are discussed in the light of putative control of ethylene-promoted fruit senescence by endogenous NO.
Key words: Strawberries, avocados, photoacoustic spectroscopy, nitric oxide, ethylene.
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