Abstract
Abstract Plants at various stages of growth are differentiated in their susceptibility to environmental stresses and possibility of regeneration during recovery period after cessation of stress. The role of antioxidative enzymes in the stabilisation of the physiological state of field bean plants was studied. Catalase, peroxidises activity, and hydrogen peroxide accumulation were determined after 1 and 7 days of flooding and after 1 and 7 days of recovery from flooding. The influence of flooding on plants growth was analysed on the basis of leaf area index ( LAI ), relative growth rate ( RGR ) and net assimilation rate ( NAR ). Changes in antioxidative enzymes caused by flooding applied at vegetative stage were reversible. In generative plants, antioxidative enzymes were activated to a greater extent during recovery period and in contrast to vegetative plants did not attain the control level after that period. The reduction in growth was greater when flooding stress was applied at vegetative stage. Vegetative plants regardless of the stabilisation of antioxidant system were not able to restore the physiological function to attain the optimal growth level after flooding. Probably other injuries caused by flooding had a dominant effect on enzymatic antioxidant changes during stress period.
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Claims 5
Claim · model-written summary
Flooding-induced enzyme changes at vegetative stage were reversible.
Verbatim
e0“Changes in antioxidative enzymes caused by flooding applied at vegetative stage were reversible”
t0“Field Bean Plants”
Claim · model-written summary
Generative plants had greater enzyme activation during recovery than vegetative plants.
Verbatim
e0“In generative plants, antioxidative enzymes were activated to a greater extent during recovery period and in contrast to vegetative plants did not attain the control level after that period”
t0“Field Bean Plants”
Claim · model-written summary
Generative plants did not return antioxidant enzyme activity to control level after recovery.
Verbatim
e0“did not attain the control level after that period”
e1“In generative plants, antioxidative enzymes were activated to a greater extent during recovery period”
t0“Field Bean Plants”
Claim · model-written summary
Flooding caused greater growth reduction at vegetative stage.
- Taxon
- Field Beant0
- Organ / stage
- vegetative stagee0
- Treatment
- flooding stresse0
- Outcome
- growthe0
- Direction
- reductione0
Not reportedComparator
Verbatim
e0“The reduction in growth was greater when flooding stress was applied at vegetative stage”
t0“Field Bean Plants”
Claim · model-written summary
Vegetative plants did not regain optimal growth after flooding despite antioxidant stabilization.
Verbatim
e0“Vegetative plants regardless of the stabilisation of antioxidant system were not able to restore the physiological function to attain the optimal growth level after flooding”
t0“Field Bean Plants”
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