Abstract
In recent years,the elevated ozone has become a serious problem which has some significant effects on plant.The response of morphological characteristics and reactive oxygen species metabolism in roots of soybean to elevated ozone concentrations was investigated in this paper.Soybean grown in open top chambers(OTCs)exposed to ambient air(O3=40 nL·L-1)and elevated ozone(O3=110±10 nL·L-1).Root volume,nodule number,root and nodule dry weight,relative electrical conductivity and malonaldehyde(MDA),hydrogen peroxide(H2O2)and superoxide anion(O-·2)production rate,activities of superoxide dismutase(SOD),catalase(CAT)and peroxidase(POD)were determined.The results showed that the root volume and root dry weight per plant decreased,then the nodule number and nodule dry weight per plant also declined with ozone concentration rising.Compared to CK,elevated ozone treatment significantly increased MDA and H2O2 content(P0.05),relative electrical conductivity and O-·2 production rate(P0.05).SOD activity was higher than CK at branching stage but lower than CK at the other stages under elevated ozone stress.Activity of CAT was lower than CK at flowering stage but higher at the other stages.Activity of POD increased in the early period and decreased in the late period,which was higher than CK at all growing stages.It can be concluded that the ozone stress has negative effects on soybean roots on account of oxidative damage,which restrains the growth and development of soybean roots.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 12
Claim · model-written summary
Root volume and root dry weight per plant decreased as ozone concentration rose.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- ozone concentration risinge1
- Outcome
- root volume and root dry weight per plante1
- Direction
- decreasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Roots”
e1“The results showed that the root volume and root dry weight per plant decreased,then the nodule number and nodule dry weight per plant also declined with ozone concentration rising”
Claim · model-written summary
Nodule number and nodule dry weight per plant declined as ozone concentration rose.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- ozone concentration risinge1
- Outcome
- nodule number and nodule dry weight per plante1
- Direction
- declinede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Roots”
e1“The results showed that the root volume and root dry weight per plant decreased,then the nodule number and nodule dry weight per plant also declined with ozone concentration rising”
Claim · model-written summary
Elevated ozone significantly increased MDA and H2O2 content in soybean roots compared with CK.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- elevated ozone treatmente2
- Outcome
- MDA and H2O2 contente2
- Direction
- increasede2
- Comparator
- CKe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Roots”
e2“Compared to CK, elevated ozone treatment significantly increased MDA and H2O2 content”
Claim · model-written summary
Elevated ozone significantly increased relative electrical conductivity and O2- production rate compared with CK.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- elevated ozone treatmente3
- Outcome
- relative electrical conductivity and O-·2 production ratee3
- Direction
- increasede3
- Comparator
- CKe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Roots”
e3“Compared to CK, elevated ozone treatment significantly increased MDA and H2O2 content(P0.05),relative electrical conductivity and O-·2 production rate”
Claim · model-written summary
SOD activity in soybean roots was higher than CK at the branching stage under elevated ozone.
- Taxon
- SoybeanGlycine maxt0
- Organ / stage
- branching stagee4
- Treatment
- elevated ozone stresse4
- Outcome
- SOD activitye4
- Direction
- highere4
- Comparator
- CKe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Roots”
e4“SOD activity was higher than CK at branching stage but lower than CK at the other stages under elevated ozone stress”
Claim · model-written summary
SOD activity in soybean roots was lower than CK at the other growth stages under elevated ozone.
- Taxon
- SoybeanGlycine maxt0
- Organ / stage
- the other stagese4
- Treatment
- elevated ozone stresse4
- Outcome
- SOD activitye4
- Direction
- lowere4
- Comparator
- CKe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Roots”
e4“SOD activity was higher than CK at branching stage but lower than CK at the other stages under elevated ozone stress”
Claim · model-written summary
CAT activity was lower than CK at the flowering stage under elevated ozone.
- Taxon
- SoybeanGlycine maxt0
- Organ / stage
- flowering stagee5
- Treatment
- elevated ozone treatmente2
- Outcome
- Activity of CATe5
- Direction
- lowere5
- Comparator
- CKe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Roots”
e2“Compared to CK, elevated ozone treatment significantly increased MDA and H2O2 content”
e5“Activity of CAT was lower than CK at flowering stage but higher at the other stages”
Claim · model-written summary
CAT activity was higher than CK at the other stages under elevated ozone.
- Taxon
- SoybeanGlycine maxt0
- Organ / stage
- the other stagese5
- Treatment
- elevated ozone treatmente2
- Outcome
- Activity of CATe5
- Direction
- highere5
- Comparator
- CKe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Roots”
e2“Compared to CK, elevated ozone treatment significantly increased MDA and H2O2 content”
e5“Activity of CAT was lower than CK at flowering stage but higher at the other stages”
Claim · model-written summary
POD activity increased in the early growth period under elevated ozone.
- Taxon
- SoybeanGlycine maxt0
- Organ / stage
- early periode6
- Treatment
- elevated ozone treatmente2
- Outcome
- Activity of PODe6
- Direction
- increasede6
- Comparator
- CKe6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Roots”
e2“Compared to CK, elevated ozone treatment significantly increased MDA and H2O2 content”
e6“Activity of POD increased in the early period and decreased in the late period,which was higher than CK at all growing stages”
Claim · model-written summary
POD activity decreased in the late growth period under elevated ozone.
- Taxon
- SoybeanGlycine maxt0
- Organ / stage
- late periode6
- Treatment
- elevated ozone treatmente2
- Outcome
- Activity of PODe6
- Direction
- decreasede6
- Comparator
- CKe6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Roots”
e2“Compared to CK, elevated ozone treatment significantly increased MDA and H2O2 content”
e6“Activity of POD increased in the early period and decreased in the late period,which was higher than CK at all growing stages”
Claim · model-written summary
POD activity was higher than CK at all growing stages under elevated ozone.
- Taxon
- SoybeanGlycine maxt0
- Organ / stage
- all growing stagese6
- Treatment
- elevated ozone treatmente2
- Outcome
- Activity of PODe6
- Direction
- highere6
- Comparator
- CKe6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Roots”
e2“Compared to CK, elevated ozone treatment significantly increased MDA and H2O2 content”
e6“Activity of POD increased in the early period and decreased in the late period,which was higher than CK at all growing stages”
Claim · model-written summary
The authors conclude that ozone stress harms soybean roots through oxidative damage, which restrains root growth and development.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- growth and development of soybean rootse7
- Qualifier
- oxidative damagee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Roots”
e7“It can be concluded that the ozone stress has negative effects on soybean roots on account of oxidative damage,which restrains the growth and development of soybean roots”
The same questions in other papers
ozone · yield · Glycine max (soybean)Positive and negative results
31 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
32 papers more in this group
See all 36 papers →ozone · physiology: oxidative · Glycine max (soybean)Results agree
9 papers in the same direction as this paper
- negative
- negative
- negative
6 papers more in this group
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.