Abstract
The effects of NiSO4, calcium, and L-histidine (His) on the components of ascorbate-glutathione cycle, antioxidant enzymes and lipid peroxidation in a tomato cultivar Early Urbana Y was investigated. The activities of enzymes including catalase (CAT), guaiacol peroxidase (GPX), ascorbate peroxidase (APX), superoxide dismutase (SOD), glutathione reductase (GR), lipoxygenase (LOX), and phenylalanine ammonia lyase (PAL) were measured. In addition, the content of H2O2, ascorbate (ASC), dehydroascorbate (DHA), reduced glutathione (GSH), chlorophyll (Chl) a+b, carotenoids, proteins, malondialdehyde (MDA), membrane aldehydes, and electrolyte leakage (EL) were determined. Results suggest that the excess of Ni increased the content of H2O2, MDA, membrane aldehydes and proteins in roots as well as GPX, LOX, APX activities, and EL in leaves, whereas Ca and His ameliorated these effects. Moreover, decreasing leaf GSH and DHA content and GR activity were observed under the Ni stress, but these parameters were raised by Ca plus His treatment. However, no improvement in leaf protein, ASC, root GSH content, and activities of PAL and CAT were observed by using Ca or His under Ni stress.
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 10
Claim · model-written summary
Excess nickel increased root H2O2, MDA and membrane aldehydes.
- Taxon
- tomato
Solanum lycopersicumt0 - Organ / stage
- rootse0
- Treatment
- Nie0
- Outcome
- content of H2O2, MDA, membrane aldehydese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excess of Ni increased the content of H2O2, MDA, membrane aldehydes and proteins in roots”
t0“tomato plants”
Claim · model-written summary
Excess nickel increased root protein content.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Nie0
- Outcome
- proteins in rootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excess of Ni increased the content of H2O2, MDA, membrane aldehydes and proteins in roots”
t0“tomato plants”
Claim · model-written summary
Excess nickel increased leaf GPX, LOX and APX activities.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- leavese0
- Treatment
- Nie0
- Outcome
- GPX, LOX, APX activitiese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ni increased the content of H2O2, MDA, membrane aldehydes and proteins in roots as well as GPX, LOX, APX activities, and EL in leaves”
t0“tomato plants”
Claim · model-written summary
Excess nickel increased leaf electrolyte leakage.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Nie0
- Outcome
- EL in leavese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ni increased the content of H2O2, MDA, membrane aldehydes and proteins in roots as well as GPX, LOX, APX activities, and EL in leaves”
t0“tomato plants”
Claim · model-written summary
Calcium ameliorated the nickel induced effects.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Cae0
- Outcome
- these effectse0
- Direction
- amelioratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“whereas Ca and His ameliorated these effects”
t0“tomato plants”
Claim · model-written summary
L-histidine ameliorated the nickel induced effects.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Hise0
- Outcome
- these effectse0
- Direction
- amelioratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“whereas Ca and His ameliorated these effects”
t0“tomato plants”
Claim · model-written summary
Nickel stress decreased leaf GSH and DHA content and GR activity.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Ni stresse0
- Outcome
- leaf GSH and DHA content and GR activitye0
- Direction
- decreasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreasing leaf GSH and DHA content and GR activity were observed under the Ni stress”
t0“tomato plants”
Claim · model-written summary
Calcium plus histidine increased leaf GSH and DHA content and GR activity.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Ca plus His treatmente0
- Outcome
- these parameterse0
- Direction
- raisede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these parameters were raised by Ca plus His treatment”
t0“tomato plants”
Claim · model-written summary
Calcium did not improve listed leaf and root biochemical measures under nickel stress.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Cae0
- Outcome
- leaf protein, ASC, root GSH contente0
- Direction
- no improvemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no improvement in leaf protein, ASC, root GSH content, and activities of PAL and CAT were observed by using Ca or His under Ni stress”
t0“tomato plants”
Claim · model-written summary
Histidine did not improve listed leaf and root biochemical measures under nickel stress.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Hise0
- Outcome
- activities of PAL and CATe0
- Direction
- no improvemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no improvement in leaf protein, ASC, root GSH content, and activities of PAL and CAT were observed by using Ca or His under Ni stress”
t0“tomato plants”
The same questions in other papers
nickel atom · physiology: antioxidant enzymes · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- positive
calcium atom · quality: protein · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
nickel atom · physiology: oxidative · Solanum lycopersicum (tomato)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
1 paper more in this group
See all 5 papers →heavy metal · physiology: antioxidant enzymes · Solanum lycopersicum (tomato)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
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.