PHOTOINHIBITION AND RECOVERY AFTER HIGH LIGHT STRESS IN DIFFERENT DEVELOPMENTAL AND LIFE-HISTORY STAGES OF LAMINARIA SACCHARINA (PHAEOPHYTA)1,2

1997 ◽  
Vol 33 (3) ◽  
pp. 387-395 ◽  
Author(s):  
Dieter Hanelt ◽  
Christian Wiencke ◽  
Ulf Karsten ◽  
Wilhelm Nultsch
Keyword(s):  
Life History ◽  
Light Stress ◽  
High Light ◽  
Laminaria Saccharina ◽  
Life History Stages ◽  
High Light Stress

Nitric oxide mediates abscisic acid induced light-tolerance in leaves of tall fescue under high-light stress

2013 ◽  
Vol 162 ◽  
pp. 1-10 ◽  
Author(s):  
Yuefei Xu ◽  
Juanjuan Fu ◽  
Xitong Chu ◽  
Yongfang Sun ◽  
He Zhou ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Abscisic Acid ◽  
Tall Fescue ◽  
Light Stress ◽  
High Light ◽  
High Light Stress

scholarly journals Glutathione and zeaxanthin formation during high light stress in foliose lichens

2008 ◽  
Vol 53 (No. 8) ◽  
pp. 340-344 ◽  
Author(s):  
J. Štepigová ◽  
H. Vráblíková ◽  
J. Lang ◽  
K. Večeřová ◽  
M. Barták
Keyword(s):  
Xanthophyll Cycle ◽  
Light Exposure ◽  
Light Stress ◽  
High Light ◽  
Short Term ◽  
Xanthophyll Cycle Pigments ◽  
High Light Stress ◽  
Fluorescence Label ◽  
Thiol Binding ◽  
Pure Acetone

In the presented study, we describe techniques for glutathione and pigment determination in lichens used in our laboratory. Glutathione and xanthophyll cycle pigments, especially zeaxanthin, are important antioxidants protecting plants against various stresses. In our laboratory, the high light stress in lichens has been intensively studied for several years. We extract glutathione in HCl and determine it by thiol-binding fluorescence label monobromobimane. For pigment determination, homogenized lichen thalli are extracted with pure acetone. According to our results, the total amount of glutathione decreases after a short-term high light exposure, while the amount of zeaxanthin increases.

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