Share Email Print

Proceedings Paper

Ultraweak chemiluminescence of rice seeds during accelerated aging
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Ultraweak Chemiluminescence (UCL) studies of different aging degree of rice (Oryza sativa L.) seeds stored in a high temperature 40 degree(s)C and high relative humidity 90% environment (0 day, 8 days, 15 days, and 22 days) were carried out. We firstly observed that aging degree of rice seeds was positive correlation with ultraweak chemiluminescence during the early imbibition (0-1h). Addition of water to rice seeds stimulates ultraweak chemiluminescence, the intensity of which depends upon aging degree of seeds. The shorter the seed accelerated aging time was, the higher the intensity of the UCL in the early imbibition period, the lower hydrogen peroxide (H2O2) concentration of rice seeds, the higher percentage seed germination. The germination and superoxide dismutase (SOD) activity of dry rice seeds was obvious positive correlation with the intensity of UCL. While catalase (CAT) activity of rice seeds was determined. Mechanism of ultraweak chemiluminescence was discussed. It was concluded that the store time of rice seeds could be judged from their UCL characters during the early imbibition period, which might be a way to examine vigor of seeds.

Paper Details

Date Published: 12 April 2002
PDF: 7 pages
Proc. SPIE 4536, International Workshop on Photonics and Imaging in Biology and Medicine, (12 April 2002); doi: 10.1117/12.462545
Show Author Affiliations
Wenli Chen, South China Normal Univ. (China)
Da Xing, South China Normal Univ. (China)
Yonghong He, South China Normal Univ. (China)

Published in SPIE Proceedings Vol. 4536:
International Workshop on Photonics and Imaging in Biology and Medicine
Qingming Luo; Britton Chance; Valery V. Tuchin, Editor(s)

© SPIE. Terms of Use
Back to Top