Photoacoustic detection of ethylene released by biological samples under stress conditions

Simona M. Cristescu; Dan C. Dumitras; Doru C. A. Dutu

doi:10.1117/12.312819

2 July 1998 Photoacoustic detection of ethylene released by biological samples under stress conditions

Simona M. Cristescu, Dan C. Dumitras, Doru C. A. Dutu

Proceedings Volume 3405, ROMOPTO '97: Fifth Conference on Optics; (1998) https://doi.org/10.1117/12.312819
Event: ROMOPTO '97: Fifth Conference on Optics, 1997, Bucharest, Romania

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.

Citation Download Citation

Simona M. Cristescu, Dan C. Dumitras, and Doru C. A. Dutu "Photoacoustic detection of ethylene released by biological samples under stress conditions", Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); https://doi.org/10.1117/12.312819

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