Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/1605
Title: Chlorophyll a fluorescence imaging of ozone-stressed Brassica napus L. plants differing in glucosinolate concentrations
Authors: Gielen, B.
Vandermeiren, K.
Horemans, N.
D'Haese, D.
SERNEELS, Roger 
VALCKE, Roland 
Issue Date: 2006
Publisher: Thieme
Source: PLANT BIOLOGY, 8(5). p. 698-705
Abstract: Brassicaceae are characterised by glucosinolates (GS), which appear to be involved not only in biotic but also in abiotic stress responses of plants. We investigated the effect of O3 stress on leaf GS concentrations in two lines of Brassica napus L., differing in GS content. Ozone fumigation decreased GS concentrations in leaves of B. napus of one line. In control conditions, chlorophyll content, rates of saturating photosynthesis, and quantum yield of photosystem 2 differed between the two Brassica lines, but differences were smaller in O3‐stress conditions, suggesting that the relationship between leaf GS concentration and sensitivity to abiotic stress merits further research. In agreement with other ecophysiological measurements, chlorophyll fluorescence imaging clearly distinguished both lines and in some cases also treatments. A method for analysis of fluorescence images accounting for the two-dimensional leaf heterogeneity is presented.
Keywords: Image processing - gas exchange - quantum yield of photosystem 2.
Document URI: http://hdl.handle.net/1942/1605
ISSN: 1435-8603
e-ISSN: 1438-8677
DOI: 10.1055/s-2006-924150
ISI #: 000240608100018
Category: A1
Type: Journal Contribution
Validations: ecoom 2007
Appears in Collections:Research publications

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