Abstract
Studies were performed on young bean plants, grown in water culture. The effect of salt stress, X-flays and flooding on growth, photosynthesis and translocation of assimilates was investigated. Salt stress (NaCl and Na2SO4), especially at - 4.5 atm. of water potential, depressed all the mentioned processes, but most dramatically - photosynthesis. Export of photosynthetes from the blades decreased. Salt stress not only reduced the rate of translocation, but also influenced the pattern of 14C-distoibution, especially inhibited transport to apical part, with growth seriously retarded. Gibberellin (GA3, 100 ppm sprayed on leaves) counteracted the negative effects caused by salinization, but did not affected either photosynthesis, or translocation in plants from normal nutrient solution. The conclusion may be advanced, that salt stress disturbed the balance of plant hormones especially gibberellins, which probably participate in. regulation of assimilate translocation.
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Claims 10
Claim · model-written summary
Salt stress depressed bean growth.
- Taxon
- bean plantt0
- Treatment
- Salt stress (NaCl and Na2SO4)e0
- Outcome
- growtht0
- Direction
- depressede0
- Qualifier
- - 4.5 atm. of water potentiale0
Not reportedComparator
Verbatim
e0“Salt stress (NaCl and Na2SO4), especially at - 4.5 atm. of water potential, depressed all the mentioned processes”
t0“The effect of several stress conditions and growth regulators on photosynthesis and translocation of assimilates in the bean plant”
Claim · model-written summary
Salt stress depressed bean photosynthesis most dramatically.
- Taxon
- bean plantt0
- Treatment
- Salt stress (NaCl and Na2SO4)e0
- Outcome
- photosynthesise0
- Direction
- depressede0
- Qualifier
- - 4.5 atm. of water potentiale0
Not reportedComparator
Verbatim
e0“Salt stress (NaCl and Na2SO4), especially at - 4.5 atm. of water potential, depressed all the mentioned processes, but most dramatically - photosynthesis”
t0“The effect of several stress conditions and growth regulators on photosynthesis and translocation of assimilates in the bean plant”
Claim · model-written summary
Salt stress decreased photosynthate export from leaf blades.
- Taxon
- bean plantt0
- Treatment
- Salt stresse1
- Outcome
- Export of photosynthetes from the bladese0
- Direction
- decreasede0
Not reportedComparator
Verbatim
e0“Export of photosynthetes from the blades decreased”
t0“The effect of several stress conditions and growth regulators on photosynthesis and translocation of assimilates in the bean plant”
e1“Salt stress (NaCl and Na2SO4), especially at - 4.5 atm. of water potential, depressed all the mentioned processes”
Claim · model-written summary
Salt stress reduced assimilate translocation rate.
Not reportedComparator
Verbatim
e0“Salt stress not only reduced the rate of translocation”
t0“The effect of several stress conditions and growth regulators on photosynthesis and translocation of assimilates in the bean plant”
Claim · model-written summary
Salt stress changed the pattern of 14C distribution.
Not reportedComparatorDirection
Verbatim
e0“Salt stress not only reduced the rate of translocation, but also influenced the pattern of 14C-distoibution”
t0“The effect of several stress conditions and growth regulators on photosynthesis and translocation of assimilates in the bean plant”
Claim · model-written summary
Salt stress inhibited assimilate transport to the apical part.
Not reportedComparator
Verbatim
e0“especially inhibited transport to apical part”
t0“The effect of several stress conditions and growth regulators on photosynthesis and translocation of assimilates in the bean plant”
e1“Salt stress (NaCl and Na2SO4), especially at - 4.5 atm. of water potential, depressed all the mentioned processes”
Claim · model-written summary
GA3 counteracted adverse salinity effects.
- Taxon
- bean plantt0
- Treatment
- GA3, 100 ppm sprayed on leavese0
- Outcome
- negative effects caused by salinizatione0
- Direction
- counteractede0
Not reportedComparator
Verbatim
e0“Gibberellin (GA3, 100 ppm sprayed on leaves) counteracted the negative effects caused by salinization”
t0“The effect of several stress conditions and growth regulators on photosynthesis and translocation of assimilates in the bean plant”
Claim · model-written summary
GA3 did not affect photosynthesis in normal nutrient solution.
- Taxon
- bean plantt0
- Treatment
- Gibberelline1
- Outcome
- photosynthesise0
- Direction
- did not affectede0
- Qualifier
- normal nutrient solutione0
Not reportedComparator
Verbatim
e0“did not affected either photosynthesis, or translocation in plants from normal nutrient solution”
t0“The effect of several stress conditions and growth regulators on photosynthesis and translocation of assimilates in the bean plant”
e1“Gibberellin (GA3, 100 ppm sprayed on leaves) counteracted the negative effects caused by salinization”
Claim · model-written summary
GA3 did not affect translocation in normal nutrient solution.
- Taxon
- bean plantt0
- Treatment
- Gibberelline1
- Outcome
- translocatione0
- Direction
- did not affectede0
- Qualifier
- normal nutrient solutione0
Not reportedComparator
Verbatim
e0“did not affected either photosynthesis, or translocation in plants from normal nutrient solution”
t0“The effect of several stress conditions and growth regulators on photosynthesis and translocation of assimilates in the bean plant”
e1“Gibberellin (GA3, 100 ppm sprayed on leaves) counteracted the negative effects caused by salinization”
Claim · model-written summary
The authors inferred that salt stress disturbed hormone balance, especially gibberellins.
Verbatim
e0“salt stress disturbed the balance of plant hormones especially gibberellins, which probably participate in. regulation of assimilate translocation”
t0“The effect of several stress conditions and growth regulators on photosynthesis and translocation of assimilates in the bean plant”
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