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Acute stress in seedlings detected by ultra-weak photon emission

Paper ID Volume ID Publish Year Pages File Format Full-Text
30722 44498 2013 3 PDF Available
Title
Acute stress in seedlings detected by ultra-weak photon emission
Abstract

The ultra-weak photon emission (biophoton) patterns of wheat germination tests under chemical stress (mercury and fluoride solutions) are presented in comparison to respective control groups run simultaneously in two similar, automatic photon-count chambers. Solutions of Hg (EC50 and EC100) and NaF (EC50) were applied at the fourth day, after the first 72 h of imbibition in water, with photon-count experiments in controlled conditions. Seedlings’ growth performance were checked by total mass increase as well as root development, and plotted against the respective angular factor of photon-count curve’s linear regression. Both Hg and NaF series presented very distinguishable patterns when compared to each respective control groups. Higher counts appear all over the 24 h test for the Hg series and just in the first 6 h for the NaF series.

► Wheat seeds germinating under chemical stress by Hg and NaF solutions were studied. ► Seedlings’ ultra-weak photon emission (UWPE) acquired at the 4th day of germination. ► Two photon detectors counting photons from control and stressed samples for 24 h. ► Germination parameters plotted against angular coefficient of linear fitting of UWPE. ► Analysis of the plots is a viable method to be applied in water and soil assurance.

Keywords
Photon-counting; Ultra-weak photon emission; Biophoton; Germination tests
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology B: Biology - Volume 118, 5 January 2013, Pages 74–76
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us