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Proceedings Paper

Photoacoustic detection of ethylene released by biological samples under stress conditions
Author(s): Simona M. Cristescu; Dan C. Dumitras; Doru C. A. Dutu
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Paper Abstract

A high sensitive photoacoustic system has been developed to monitor the ethylene released by mature tomatoes and wheat seeds during germination as a response of fast effects of mechanical and thermal stress. Under normal conditions of temperature and pressure, the coronet removal yielded a significant increase of ethylene emission as compared to the local wounding of tomato tissues. To determine the temperature influence on ethylene emission rates, both tomatoes and germinating wheat seeds were investigated at cold treatment (4 degree(s)C) and at room temperature (22 degree(s)C). Early changes in ethylene released after imbibition in connection with the physiological results of germination were also monitored.

Paper Details

Date Published: 2 July 1998
PDF: 5 pages
Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); doi: 10.1117/12.312819
Show Author Affiliations
Simona M. Cristescu, National Institute for Laser, Plasma, and Radiation Physics (Netherlands)
Dan C. Dumitras, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Doru C. A. Dutu, National Institute for Laser, Plasma, and Radiation Physics (Romania)


Published in SPIE Proceedings Vol. 3405:
ROMOPTO '97: Fifth Conference on Optics
Valentin I. Vlad; Dan C. Dumitras, Editor(s)

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