fulltext.study @t Gmail

LIF technique offers the potential for the detection of cadmium-induced alteration in photosynthetic activities of Zea Mays L.

Paper ID Volume ID Publish Year Pages File Format Full-Text
31464 44792 2008 7 PDF Available
Title
LIF technique offers the potential for the detection of cadmium-induced alteration in photosynthetic activities of Zea Mays L.
Abstract

The laser-induced fluorescence spectra of leaves of Zea mays L. plants treated with different concentrations (0.01, 0.10 and 1.00 mM) of cadmium were recorded in region 650–800 nm using 488 nm line of Argon Ion laser as excitation source and PMT as detector. Besides this, blue-green fluorescence and Chl fluorescence were also measured using third harmonic (355 nm) of Nd:YAG laser as excitation source and 320 M monochromator with intensified charge coupled device as a detector in the region 400–800 nm. These spectra have been used to analyse the effect of several doses of cadmium on the photosynthetic activities of Z. mays L. plants. The fluorescence intensity ratios (FIR) of control as well as treated Z. mays L. were calculated by evaluating curve-fitted parameters using Gaussian spectral function. In addition, growth parameters like photosynthetic pigments content were also estimated. The chlorophyll fluorescence intensity ratio F685/F735 excited by both 488 and 355 nm lines are strongly correlated with photosynthetic pigments content (total chlorophyll and carotenoids) and their ratios. Consequently, there also existed a correlation between the blue-green fluorescence intensity ratio F470/F540 and photosynthetic pigments content.

Keywords
LIF, laser-induced fluorescence; Chl, chlorophyll; FIR, fluorescence intensity ratio; Cd, cadmium; PS I, photosystem I; PS II, photosystem II; a + b, total chlorophyll; x + c, carotenoids; ICCD, intensified charge coupled device; F470/F540, ratio; PAR, ph
First Page Preview
LIF technique offers the potential for the detection of cadmium-induced alteration in photosynthetic activities of Zea Mays L.
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
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology C: Photochemistry Reviews - Volume 9, Issue 1, March 2008, Pages 29–35
Authors
, , ,
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