Abstract
Effects of different concentrations of NaCl on salt tolerance of roots in poplar ‘107’ (Populus×euramericana ‘Neva’) and transgenic poplar ‘18-1’ and ‘18-4’ with NTHK1 (Nicotiana tabacum histidine kinase-1) were investigated. The results showed that dry weight and length of roots in ‘18-1’ and ‘18-4’ were significantly higher than that of ‘107’. Under the stress of 400 mmol·L-1 NaCl for 60 min, the K+ leakage amount of ‘107’ were 49.34% and 19.68% higher than those of ‘18-1’ and ‘18-4’ respectively. And the relative electrolyte leakage (REL) of ‘107’ was also significantly higher than those of ‘18-1’ and ‘18-4’ after treatments of 400 mmol·L-1 KCl or NaCl for 30 min. But isotonic 30% PEG had little effect on the REL of root segment in vitro. The NaCl solution added with 400 mmol·L-1 KCl or KNO3 significantly increased the REL of root segment in vitro, and made a greater difference between the different genotypes poplar. The results showed that the determination of K+ leakage volume and REL of root segments in vitro could quickly identify potential salt tolerance of different genotypes of poplars.
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Claims 9
Claim · model-written summary
Root dry weight and length of transgenic poplar 18-1 were significantly higher than those of poplar 107
PopulusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt tolerance of roots in poplar ‘107’”
e1“dry weight and length of roots in ‘18-1’ and ‘18-4’ were significantly higher than that of ‘107’”
Claim · model-written summary
Root dry weight and length of transgenic poplar 18-4 were significantly higher than those of poplar 107
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt tolerance of roots in poplar ‘107’”
e1“dry weight and length of roots in ‘18-1’ and ‘18-4’ were significantly higher than that of ‘107’”
Claim · model-written summary
Under 400 mmol·L-1 NaCl for 60 min, K+ leakage of poplar 107 was 49.34% higher than that of transgenic 18-1
- Material
- 107e2
- Treatment
- 400 mmol·L-1 NaCl for 60 mine2
- Outcome
- K+ leakage amounte2
- Direction
- highere2
- Value
- 49.34%e2
- Comparator
- 18-1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt tolerance of roots in poplar ‘107’”
e2“Under the stress of 400 mmol·L-1 NaCl for 60 min, the K+ leakage amount of ‘107’ were 49.34% and 19.68% higher than those of ‘18-1’ and ‘18-4’ respectively”
Claim · model-written summary
Under 400 mmol·L-1 NaCl for 60 min, K+ leakage of poplar 107 was 19.68% higher than that of transgenic 18-4
- Material
- 107e2
- Treatment
- 400 mmol·L-1 NaCl for 60 mine2
- Outcome
- K+ leakage amounte2
- Direction
- highere2
- Value
- 19.68%e2
- Comparator
- 18-4e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt tolerance of roots in poplar ‘107’”
e2“Under the stress of 400 mmol·L-1 NaCl for 60 min, the K+ leakage amount of ‘107’ were 49.34% and 19.68% higher than those of ‘18-1’ and ‘18-4’ respectively”
Claim · model-written summary
Relative electrolyte leakage of poplar 107 was significantly higher than that of 18-1 and 18-4 after 400 mmol·L-1 KCl or NaCl for 30 min
- Material
- 107e3
- Treatment
- 400 mmol·L-1 KCl or NaCl for 30 mine3
- Outcome
- relative electrolyte leakage (REL)e3
- Direction
- highere3
- Comparator
- those of ‘18-1’ and ‘18-4’e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt tolerance of roots in poplar ‘107’”
e3“the relative electrolyte leakage (REL) of ‘107’ was also significantly higher than those of ‘18-1’ and ‘18-4’ after treatments of 400 mmol·L-1 KCl or NaCl for 30 min”
Claim · model-written summary
Adding 400 mmol·L-1 KCl or KNO3 to NaCl solution significantly increased relative electrolyte leakage of root segments in vitro
- Treatment
- 400 mmol·L-1 KCl or KNO3e4
- Outcome
- REL of root segment in vitroe4
- Direction
- increasede4
- Comparator
- NaCl solutione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt tolerance of roots in poplar ‘107’”
e4“The NaCl solution added with 400 mmol·L-1 KCl or KNO3 significantly increased the REL of root segment in vitro”
Claim · model-written summary
Isotonic 30% PEG had little effect on relative electrolyte leakage of root segments in vitro
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt tolerance of roots in poplar ‘107’”
e5“But isotonic 30% PEG had little effect on the REL of root segment in vitro”
Claim · model-written summary
Different poplar genotypes differed more strongly in relative electrolyte leakage after NaCl solution with KCl or KNO3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt tolerance of roots in poplar ‘107’”
e6“made a greater difference between the different genotypes poplar”
Claim · model-written summary
K+ leakage volume and REL of root segments in vitro could quickly identify potential salt tolerance of poplar genotypes
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt tolerance of roots in poplar ‘107’”
e7“could quickly identify potential salt tolerance of different genotypes of poplars”
The same questions in other papers
drought · physiology: oxidative · Populus (poplar)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
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.