Abstract
In two mung bean cultivars (Phaseolus raditus L. cv. 'Qindou-20' and 'Zhonglv-1') with different sensitivities to UV-B grown in growth chamber under supplemental or no supplemental UV-B radiation (0.4 W/m(2)) with or without 0.4% NaCl, the effects of NaCl stress on UV-B-induced DNA damage and repair were studied. The results showed that, under NaCl stress, (i) CPD accumulation was lower in the tolerant cultivar 'Zhonglv-1' but was the same in the sensitive cultivar 'Qindou-20', (ii) CPD formation in both cultivars was weakened, (iii) the photorepair and dark repair capacity were higher in the tolerant cultivar and (iv) the photorepair was weakened and dark repair capacity did not change in the sensitive cultivar. There was a negative correlation between susceptibility of CPD formation and levels of UV-absorbing compounds. These results demonstrate that NaCl stress can affect not only the susceptibility to CPD formation, but also the capacities for photorepair and dark repair of DNA, which together result in the change in UV-B-induced CPD accumulation and thereby that in sensitivity of plant to UV-B. The results also suggest that the differences in susceptibilities to CPD formation are due to the differences in levels of UV-absorbing compounds.
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Claims 8
Claim · model-written summary
Under NaCl stress, CPD accumulation was lower in tolerant Zhonglv-1.
- Taxon
- mung bean
.jpg?width=60)
Vigna radiatat0 - Material
- 'Zhonglv-1'e0
- Treatment
- NaCl stresse0
- Outcome
- CPD accumulatione0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“under NaCl stress, (i) CPD accumulation was lower in the tolerant cultivar 'Zhonglv-1'”
t0“mung bean”
Claim · model-written summary
Under NaCl stress, CPD accumulation stayed the same in sensitive Qindou-20.
- Taxon
- mung beanVigna radiatat0
- Material
- 'Qindou-20'e0
- Treatment
- NaCl stresse1
- Outcome
- CPD accumulatione0
- Direction
- the samee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CPD accumulation was lower in the tolerant cultivar 'Zhonglv-1' but was the same in the sensitive cultivar 'Qindou-20'”
e1“under NaCl stress”
t0“mung bean”
Claim · model-written summary
NaCl weakened CPD formation in both cultivars.
- Taxon
- mung beanVigna radiatat0
- Treatment
- NaCl stresse1
- Outcome
- CPD formatione0
- Direction
- weakenede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CPD formation in both cultivars was weakened”
e1“under NaCl stress”
t0“mung bean”
Claim · model-written summary
Photorepair capacity was higher in tolerant Zhonglv-1.
- Taxon
- mung beanVigna radiatat0
- Material
- 'Zhonglv-1'e1
- Outcome
- photorepaire0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the photorepair and dark repair capacity were higher in the tolerant cultivar”
e1“the tolerant cultivar 'Zhonglv-1'”
t0“mung bean”
Claim · model-written summary
Dark repair capacity was higher in tolerant Zhonglv-1.
- Taxon
- mung beanVigna radiatat0
- Material
- 'Zhonglv-1'e1
- Outcome
- dark repair capacitye0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the photorepair and dark repair capacity were higher in the tolerant cultivar”
e1“the tolerant cultivar 'Zhonglv-1'”
t0“mung bean”
Claim · model-written summary
NaCl weakened photorepair in sensitive Qindou-20.
- Taxon
- mung beanVigna radiatat0
- Material
- 'Qindou-20'e2
- Treatment
- NaCl stresse1
- Outcome
- photorepaire0
- Direction
- weakenede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the photorepair was weakened and dark repair capacity did not change in the sensitive cultivar”
e1“under NaCl stress”
e2“sensitive cultivar 'Qindou-20'”
t0“mung bean”
Claim · model-written summary
NaCl did not change dark repair capacity in sensitive Qindou-20.
- Taxon
- mung beanVigna radiatat0
- Material
- 'Qindou-20'e2
- Treatment
- NaCl stresse1
- Outcome
- dark repair capacitye0
- Direction
- did not changee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dark repair capacity did not change in the sensitive cultivar”
e1“under NaCl stress”
e2“sensitive cultivar 'Qindou-20'”
t0“mung bean”
Claim · model-written summary
Susceptibility to CPD formation was negatively correlated with UV-absorbing compound levels.
- Taxon
- mung beanVigna radiatat0
- Compound
- UV-absorbing compoundse0
- Outcome
- susceptibility of CPD formatione0
- Direction
- negative correlatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a negative correlation between susceptibility of CPD formation and levels of UV-absorbing compounds”
t0“mung bean”
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See all 10 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.