Abstract
The morphological performance and physiological mechanism of Brassica napus under water stress were studied by waterlogging(submergence) treatment of the seedlings of waterlogging-resistant line WR-4 and waterlogging-susceptible line WR-24. The contents of soluble sugar and proline, and activities of SOD and MDA content in the seedlings were measured. Results showed that after submergence treatment, WR-4 performed a well-developed root system with more branch hair on the main root. The root length of WR-4 increased by 9.4% compared to control. The dry weight of WR-4 from 6 d submergence+3 d recovery treatment increased more than WR-24. The soluble sugar and proline content in leaf of WR-4 from 6 d submergence+1 d recovery treatment increased more than WR-24. Content of MDA in leaves of WR-4 decreased after 6 d submergence+1 d recovery, while that in WR-24 was increasing. Through histochemical staining, WR-4 accumulated less hydrogen peroxide(H 2 O 2) and superoxide anion(O 2 ˉ·) in leaves comparing to WR-24. And its SOD activity was significantly higher than WR-24. It indicated that WR-4, the waterlogging-resistant line showed a strong ability to restore damage resulting from water stress by increasing the content of soluble sugar and proline, and timely starting antioxidant enzyme system to defend against oxidative damage.
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Claims 9
Claim · model-written summary
Submerged WR-4 developed a well-developed root system with more branch hair.
- Taxon
- Brassica napus
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napust0 - Material
- WR-4e0
- Organ / stage
- main roote0
- Treatment
- submergence treatmente0
- Outcome
- well-developed root system with more branch hair on the main roote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“after submergence treatment, WR-4 performed a well-developed root system with more branch hair on the main root”
t0“Brassica napus”
Claim · model-written summary
Submergence increased WR-4 root length by 9.4% versus control.
- Taxon
- Brassica napusBrassica napust0
- Material
- WR-4e0
- Treatment
- submergence treatmente1
- Outcome
- root lengthe0
- Direction
- increasede0
- Value
- 9.4%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The root length of WR-4 increased by 9.4% compared to control”
t0“Brassica napus”
e1“after submergence treatment, WR-4 performed a well-developed root system with more branch hair on the main root”
Claim · model-written summary
After 6 d submergence and 3 d recovery, WR-4 dry weight rose more than WR-24.
- Taxon
- Brassica napusBrassica napust0
- Material
- WR-4e0
- Treatment
- 6 d submergence+3 d recovery treatmente0
- Outcome
- dry weighte0
- Direction
- increased moree0
- Comparator
- WR-24e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The dry weight of WR-4 from 6 d submergence+3 d recovery treatment increased more than WR-24”
t0“Brassica napus”
Claim · model-written summary
After 6 d submergence and 1 d recovery, leaf soluble sugar and proline rose more in WR-4 than WR-24.
- Taxon
- Brassica napusBrassica napust0
- Material
- WR-4e0
- Organ / stage
- leafe0
- Treatment
- 6 d submergence+1 d recovery treatmente0
- Outcome
- soluble sugar and proline contente0
- Direction
- increased moree0
- Comparator
- WR-24e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The soluble sugar and proline content in leaf of WR-4 from 6 d submergence+1 d recovery treatment increased more than WR-24”
t0“Brassica napus”
Claim · model-written summary
Leaf MDA in WR-4 decreased after 6 d submergence and 1 d recovery.
- Taxon
- Brassica napusBrassica napust0
- Material
- WR-4e0
- Organ / stage
- leavese0
- Treatment
- 6 d submergence+1 d recoverye0
- Outcome
- Content of MDAe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Content of MDA in leaves of WR-4 decreased after 6 d submergence+1 d recovery”
t0“Brassica napus”
Claim · model-written summary
Leaf MDA in WR-24 increased after submergence and recovery.
- Taxon
- Brassica napusBrassica napust0
- Material
- WR-24e0
- Treatment
- submergencee1
- Outcome
- Content of MDAe2
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while that in WR-24 was increasing”
t0“Brassica napus”
e1“after submergence treatment, WR-4 performed a well-developed root system with more branch hair on the main root”
e2“Content of MDA in leaves of WR-4 decreased after 6 d submergence+1 d recovery”
Claim · model-written summary
WR-4 leaves accumulated less hydrogen peroxide and superoxide anion than WR-24.
- Taxon
- Brassica napusBrassica napust0
- Material
- WR-4e0
- Organ / stage
- leavese0
- Outcome
- hydrogen peroxide(H 2 O 2) and superoxide anion(O 2 ˉ·)e0
- Direction
- lesse0
- Comparator
- WR-24e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“WR-4 accumulated less hydrogen peroxide(H 2 O 2) and superoxide anion(O 2 ˉ·) in leaves comparing to WR-24”
t0“Brassica napus”
Claim · model-written summary
WR-4 SOD activity was significantly higher than WR-24.
- Taxon
- Brassica napusBrassica napust0
- Material
- WR-4e1
- Outcome
- SOD activitye0
- Direction
- highere0
- Comparator
- WR-24e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“its SOD activity was significantly higher than WR-24”
t0“Brassica napus”
e1“after submergence treatment, WR-4 performed a well-developed root system with more branch hair on the main root”
Claim · model-written summary
Authors attribute WR-4 recovery from water stress to soluble sugar, proline, and antioxidant defenses.
- Taxon
- Brassica napusBrassica napust0
- Material
- WR-4e0
- Outcome
- restore damage resulting from water stresse0
- Qualifier
- increasing the content of soluble sugar and proline, and timely starting antioxidant enzyme systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“WR-4, the waterlogging-resistant line showed a strong ability to restore damage resulting from water stress by increasing the content of soluble sugar and proline, and timely starting antioxidant enzyme system to defend against oxidative damage”
t0“Brassica napus”
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5 papers in the same direction as this paper · 24 in the opposite direction
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See all 30 papers →rewatering · growth · Brassica napus (oilseed rape)Results agree
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- 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.