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Evaluation of cold stress of young industrial chicory (Cichorium intybus L.) by chlorophyll a fluorescence imaging, II: dark relaxation kinetics

Peter Lootens, Sofie Devacht UGent, Joost Baert, Johan Van Waes, Erik Van Bockstaele UGent and I Roldán-Ruiz (2011) PHOTOSYNTHETICA. 49(2). p.185-194
abstract
Industrial chicory, Cichorium intybus L., has rather poor early vigour under the typical early spring morning conditions of low temperatures and high light intensity. Screening tools are being developed to assess the cold tolerance/sensitivity of young industrial chicory plants under these conditions. Refinement of such tools requires better understanding of the plants' physiological responses. In this paper we discuss the effects of growth temperature (GT), measurement temperature (MT), and measuring light intensity (ML) on the relaxation of the Kautsky curve. We chose the chicory variety 'Hera', as it is known to possess a good average early vigour. Young plants of the variety 'Hera' were grown at three temperatures (GT): 16A degrees C (reference), 8A degrees C (intermediate), and 4A degrees C (cold stress). The dark relaxation kinetics were analyzed at different light intensities (ML) in combination with different measurement temperatures (MT). The three components of the nonphotochemical quenching process (NPQ(E), NPQ(T), and NPQ(I)) were determined. NPQ(E) was not affected by GT but was significantly affected by MT and ML. NPQ(T) and NPQ(I) were affected by all factors and their interactions. An acclimation effect for plants grown at low GT was detected. Acclimation resulted in lower NPQ(T) and NPQ(I) values. The halftime of the inhibition depending on NPQ (NPQ(I)) was not affected by any of the factors investigated. Based on the data generated, we conclude that NPQ(I) is a valuable parameter for screening the cold sensitivity of young industrial chicory plants.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
PHOTOPROTECTION, DISSIPATION, PHOTOINHIBITION, LIGHT ENERGY, SELECTION TOOL, SPINACH LEAVES, XANTHOPHYLL CYCLE, ZEA-MAYS L., PHOTOSYNTHETIC PERFORMANCE, BARLEY LEAVES, chilling, energy-dependent quenching, photoinhibition, state-transitiondependent quenching, nonphotochemical quenching
journal title
PHOTOSYNTHETICA
Photosynthetica
volume
49
issue
2
pages
185 - 194
Web of Science type
Article
Web of Science id
000292308000003
JCR category
PLANT SCIENCES
JCR impact factor
1 (2011)
JCR rank
114/189 (2011)
JCR quartile
3 (2011)
ISSN
0300-3604
DOI
10.1007/s11099-011-0025-z
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2964517
handle
http://hdl.handle.net/1854/LU-2964517
date created
2012-07-27 09:33:27
date last changed
2012-07-30 10:53:02
@article{2964517,
  abstract     = {Industrial chicory, Cichorium intybus L., has rather poor early vigour under the typical early spring morning conditions of low temperatures and high light intensity. Screening tools are being developed to assess the cold tolerance/sensitivity of young industrial chicory plants under these conditions. Refinement of such tools requires better understanding of the plants' physiological responses. In this paper we discuss the effects of growth temperature (GT), measurement temperature (MT), and measuring light intensity (ML) on the relaxation of the Kautsky curve. We chose the chicory variety 'Hera', as it is known to possess a good average early vigour. Young plants of the variety 'Hera' were grown at three temperatures (GT): 16A degrees C (reference), 8A degrees C (intermediate), and 4A degrees C (cold stress). The dark relaxation kinetics were analyzed at different light intensities (ML) in combination with different measurement temperatures (MT). The three components of the nonphotochemical quenching process (NPQ(E), NPQ(T), and NPQ(I)) were determined. NPQ(E) was not affected by GT but was significantly affected by MT and ML. NPQ(T) and NPQ(I) were affected by all factors and their interactions. An acclimation effect for plants grown at low GT was detected. Acclimation resulted in lower NPQ(T) and NPQ(I) values. The halftime of the inhibition depending on NPQ (NPQ(I)) was not affected by any of the factors investigated. Based on the data generated, we conclude that NPQ(I) is a valuable parameter for screening the cold sensitivity of young industrial chicory plants.},
  author       = {Lootens, Peter and Devacht, Sofie and Baert, Joost and Van Waes, Johan and Van Bockstaele, Erik and Rold{\'a}n-Ruiz, I},
  issn         = {0300-3604},
  journal      = {PHOTOSYNTHETICA},
  keyword      = {PHOTOPROTECTION,DISSIPATION,PHOTOINHIBITION,LIGHT ENERGY,SELECTION TOOL,SPINACH LEAVES,XANTHOPHYLL CYCLE,ZEA-MAYS L.,PHOTOSYNTHETIC PERFORMANCE,BARLEY LEAVES,chilling,energy-dependent quenching,photoinhibition,state-transitiondependent quenching,nonphotochemical quenching},
  language     = {eng},
  number       = {2},
  pages        = {185--194},
  title        = {Evaluation of cold stress of young industrial chicory (Cichorium intybus L.) by chlorophyll a fluorescence imaging, II: dark relaxation kinetics},
  url          = {http://dx.doi.org/10.1007/s11099-011-0025-z},
  volume       = {49},
  year         = {2011},
}

Chicago
Lootens, Peter, Sofie Devacht, Joost Baert, Johan Van Waes, Erik Van Bockstaele, and I Roldán-Ruiz. 2011. “Evaluation of Cold Stress of Young Industrial Chicory (Cichorium Intybus L.) by Chlorophyll a Fluorescence Imaging, II: Dark Relaxation Kinetics.” Photosynthetica 49 (2): 185–194.
APA
Lootens, P., Devacht, S., Baert, J., Van Waes, J., Van Bockstaele, E., & Roldán-Ruiz, I. (2011). Evaluation of cold stress of young industrial chicory (Cichorium intybus L.) by chlorophyll a fluorescence imaging, II: dark relaxation kinetics. PHOTOSYNTHETICA, 49(2), 185–194.
Vancouver
1.
Lootens P, Devacht S, Baert J, Van Waes J, Van Bockstaele E, Roldán-Ruiz I. Evaluation of cold stress of young industrial chicory (Cichorium intybus L.) by chlorophyll a fluorescence imaging, II: dark relaxation kinetics. PHOTOSYNTHETICA. 2011;49(2):185–94.
MLA
Lootens, Peter, Sofie Devacht, Joost Baert, et al. “Evaluation of Cold Stress of Young Industrial Chicory (Cichorium Intybus L.) by Chlorophyll a Fluorescence Imaging, II: Dark Relaxation Kinetics.” PHOTOSYNTHETICA 49.2 (2011): 185–194. Print.