Abstract
Oxidative damage and antioxidant properties have been studied in shoot and root cells of hydroponically grown Glycine max L. subjected to short term exposure of Zn (0, 500, 1000 and 2000 µM) as ZnSO .7H O along with different pH (3.0, 6.0 and 8.0). An increased level of superoxide anion radical (O ) and 42 2 .- H O evidenced oxidative stress conditions in seedlings. Zn-treated seedlings showed elevated levels of lipid 22 peroxides with a concomitant increase in the activities of the antioxidative enzymes viz. ascorbate peroxidase (APX), guaiacol peroxidase (GPOD), catalase (CAT), superoxide dismutase (SOD) and glutathione reductase (GR) at different given pH values. Though Zn was readily absorbed by growing seedlings, its localization was greater in roots than shoots. Seedlings grown for 3-14 days in presence of 2000 µM ZnSO .7H O showed 42 65.94% to 84.52% increase in the level of malondialdehyde (MDA) in shoots and roots, respectively indicating enhanced lipid peroxidation compared to control at maximum pH. Under controls as well as Zn treated experimental tissues maintained higher activities of enzymes at pH 8.0. Results suggest that Zn induced oxidative stress in seedlings and peroxidases, SOD, CAT and GR could serve as important components of antioxidative defense mechanism were highly influenced by different pH levels.
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 8
Claim · model-written summary
Seedlings had increased superoxide radical and hydrogen peroxide levels under zinc stress.
- Taxon
- Glycine max L.
Glycine maxe1 - Treatment
- Zn (0, 500, 1000 and 2000 µM)e1
- Outcome
- level of superoxide anion radical (O ) and 42 2 .- H Oe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An increased level of superoxide anion radical (O ) and 42 2 .- H O evidenced oxidative stress conditions in seedlings”
e1“hydroponically grown Glycine max L. subjected to short term exposure of Zn (0, 500, 1000 and 2000 µM)”
Claim · model-written summary
Zinc raised lipid peroxide levels in soybean seedlings.
- Taxon
- Glycine max L.Glycine maxe1
- Treatment
- Zn-treatede0
- Outcome
- levels of lipid 22 peroxidese0
- Direction
- elevatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn-treated seedlings showed elevated levels of lipid 22 peroxides with a concomitant increase in the activities of the antioxidative enzymes”
e1“hydroponically grown Glycine max L.”
Claim · model-written summary
Zinc increased APX, GPOD and CAT activities across the tested pH values.
- Taxon
- Glycine max L.Glycine maxe1
- Treatment
- Zn-treatede2
- Outcome
- activities of the antioxidative enzymes viz. ascorbate peroxidase (APX), guaiacol peroxidase (GPOD), catalase (CAT)e0
- Direction
- increasee0
- Qualifier
- different given pH valuese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in the activities of the antioxidative enzymes viz. ascorbate peroxidase (APX), guaiacol peroxidase (GPOD), catalase (CAT), superoxide dismutase (SOD) and glutathione reductase (GR) at different given pH values”
e1“hydroponically grown Glycine max L.”
e2“Zn-treated seedlings showed elevated levels”
Claim · model-written summary
Zinc increased SOD and GR activities across tested pH values.
- Taxon
- Glycine max L.Glycine maxe1
- Treatment
- Zn-treatede2
- Outcome
- superoxide dismutase (SOD) and glutathione reductase (GR)e0
- Direction
- increasee0
- Qualifier
- different given pH valuese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in the activities of the antioxidative enzymes viz. ascorbate peroxidase (APX), guaiacol peroxidase (GPOD), catalase (CAT), superoxide dismutase (SOD) and glutathione reductase (GR) at different given pH values”
e1“hydroponically grown Glycine max L.”
e2“Zn-treated seedlings showed elevated levels”
Claim · model-written summary
Absorbed zinc localized more in roots than shoots.
- Taxon
- Glycine max L.Glycine maxe1
- Organ / stage
- rootse0
- Outcome
- localizatione0
- Direction
- greatere0
- Comparator
- shootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn was readily absorbed by growing seedlings, its localization was greater in roots than shoots”
e1“hydroponically grown Glycine max L.”
Claim · model-written summary
At 2000 µM zinc, shoot MDA increased by 65.94% versus control at maximum pH.
- Taxon
- Glycine max L.Glycine maxe1
- Organ / stage
- shootse0
- Treatment
- 2000 µM ZnSO .7H Oe0
- Outcome
- level of malondialdehyde (MDA)e0
- Direction
- increasee0
- Value
- 65.94%e0
- Qualifier
- maximum pHe0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seedlings grown for 3-14 days in presence of 2000 µM ZnSO .7H O showed 42 65.94% to 84.52% increase in the level of malondialdehyde (MDA) in shoots and roots, respectively indicating enhanced lipid peroxidation compared to control at maximum pH”
e1“hydroponically grown Glycine max L.”
Claim · model-written summary
At 2000 µM zinc, root MDA increased by 84.52% versus control at maximum pH.
- Taxon
- Glycine max L.Glycine maxe1
- Organ / stage
- rootse0
- Treatment
- 2000 µM ZnSO .7H Oe0
- Outcome
- level of malondialdehyde (MDA)e0
- Direction
- increasee0
- Value
- 84.52%e0
- Qualifier
- maximum pHe0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seedlings grown for 3-14 days in presence of 2000 µM ZnSO .7H O showed 42 65.94% to 84.52% increase in the level of malondialdehyde (MDA) in shoots and roots, respectively indicating enhanced lipid peroxidation compared to control at maximum pH”
e1“hydroponically grown Glycine max L.”
Claim · model-written summary
Enzyme activities were higher at pH 8.0 in control and zinc-treated tissues.
- Taxon
- Glycine max L.Glycine maxe1
- Treatment
- pH 8.0e0
- Outcome
- activities of enzymese0
- Direction
- highere0
- Qualifier
- controls as well as Zn treated experimental tissuese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under controls as well as Zn treated experimental tissues maintained higher activities of enzymes at pH 8.0”
e1“hydroponically grown Glycine max L.”
The same questions in other papers
zinc atom · physiology: oxidative · Glycine max (soybean)Positive and negative results
5 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →zinc atom · molecular: metabolites · Glycine max (soybean)Positive and negative results
3 papers in the same direction as this paper · 11 in the opposite direction
- positive
- positive
- positive
11 papers more in this group
See all 15 papers →zinc atom · physiology: antioxidant enzymes · Glycine max (soybean)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.