Abstract
This study aimed at revealing the effect of transferring SOD gene on drought resistance of pot-cultured tobacco near-isogenic lines(i.e.non-transgenic line,Mn-SOD gene transgenic line and Fe-SOD gene transgenic line). The results showed that the transferred Mn-SOD gene in tobacco could actually improve the drought resistance of this crop. On the contrary,the transferred Fe-SOD gene could evidently increase SOD activity in tobacco leaves,but did not improve its drought resistance. So we deduce that Mn-SOD may have closer relation to drought resistance of tobacco. The two transferred SOD genes possibly affected the normal physiological metabolism of some physiological and biochemical matters such as malondiadehyde,protein,photosynthesis and proline under water stress. The changes of physiological parameters such as proline,MDA and protein did not show distinct relations with drought resistance of the tested tobacco lines,more experiments are needed to identify the importance of these parameters in selection of drought tolerant tobacco cultivars and assessment of drought resistance of tobacco.
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Claims 6
Claim · model-written summary
Transferred Mn-SOD improved drought resistance.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- transferred Mn-SOD genee0
- Gene
- Mn-SODe0
- Outcome
- drought resistancee0
- Direction
- improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the transferred Mn-SOD gene in tobacco could actually improve the drought resistance of this crop.”
Claim · model-written summary
Transferred Fe-SOD increased leaf SOD activity.
- Taxon
- tobaccoNicotiana tabacume0
- Organ / stage
- leavese0
- Treatment
- transferred Fe-SOD genee0
- Gene
- Fe-SODe0
- Outcome
- SOD activitye0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the transferred Fe-SOD gene could evidently increase SOD activity in tobacco leaves”
Claim · model-written summary
Transferred Fe-SOD did not improve drought resistance.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- transferred Fe-SOD genee0
- Gene
- Fe-SODe0
- Outcome
- drought resistancee0
- Direction
- did not improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the transferred Fe-SOD gene could evidently increase SOD activity in tobacco leaves,but did not improve its drought resistance.”
Claim · model-written summary
Mn-SOD was inferred to have a closer relationship to drought resistance.
- Taxon
- tobaccoNicotiana tabacume0
- Gene
- Mn-SODe0
- Outcome
- drought resistancee0
- Direction
- closer relatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mn-SOD may have closer relation to drought resistance of tobacco.”
Claim · model-written summary
Both transferred genes possibly affected physiological metabolism under water stress.
- Taxon
- tobaccoNicotiana tabacumt0
- Gene
- SOD genese0
- Outcome
- normal physiological metabolisme0
- Qualifier
- under water stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The two transferred SOD genes possibly affected the normal physiological metabolism of some physiological and biochemical matters such as malondiadehyde,protein,photosynthesis and proline under water stress.”
t0“tobacco”
Claim · model-written summary
Proline, MDA and protein changes had no distinct relation to drought resistance.
- Taxon
- tobaccoNicotiana tabacume0
- Compound
- prolinee0
- Outcome
- drought resistancee0
- Direction
- did not show distinct relationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The changes of physiological parameters such as proline,MDA and protein did not show distinct relations with drought resistance of the tested tobacco lines”
The same questions in other papers
iron atom · physiology: antioxidant enzymes · Nicotiana tabacum (tobacco)Results agree
1 paper in the same direction as this paper
- positive
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.