THE INFLUENCE OF GAMMA-RADIATION ON THE KINETIC OF CHANGES IN VIOLAXANTHIN CONTENT AND ON THE XANTHOPHYLL CYCLE

Authors
SAAKOV VS
Citation
Vs. Saakov, THE INFLUENCE OF GAMMA-RADIATION ON THE KINETIC OF CHANGES IN VIOLAXANTHIN CONTENT AND ON THE XANTHOPHYLL CYCLE, Photosynthetica, 28(3), 1993, pp. 439-445
Citations number
26
Categorie Soggetti
Plant Sciences
Journal title
Photosynthetica → ACNP
ISSN journal
03003604
Volume
28
Issue
3
Year of publication
1993
Pages
439 - 445
Database
ISI
SICI code
0300-3604(1993)28:3<439:TIOGOT>2.0.ZU;2-J
Abstract
In Phaseolus and Robinia leaves, direct light reaction (de-epoxidation of violaxanthin) was inhibited during 7-9 h as an aftereffect of gamm a-radiation (167 mGy s-1). Complete suppression of the light reaction by the de-epoxidation was reached after 12-14 h. The suppression of xa nthophyll de-epoxidation reflects the inhibition of photosynthetic ele ctron transport chain and may be used for testing deleterious effects on plants.