Abstract
2 Abstract: The toxic effects of zinc (Zn) at increasing concentrations were studied with special attention being given to the morphological and biochemical response of Cicer arietinum. Seeds were grown in different concentration of ZnSO (0, 10, 25, 50, 75 and 100µM) for 15 days. In respective to their controls, low 4 concentration (10 and 25µM) of Zn greatly stimulated the seed germination, while it was inhibited at maximum concentration (100µM). Radical, hypocotyls length and root length (TI) and plant height (TI) were also augmented up to 25 µM of Zn addition and after that a significant reduction were noticed at 75 and 100µM. The effects of toxicity of Zn on chlorophyll content and antioxidant enzymes activity include CAT, APX and GPX were also investigated. The data showed that the low concentration of Zn (25µM) addition induced chlorophyll content and high doses of Zn reduced the chlorophyll synthesis. Maximum and minimum chlorophyll content were observed at 25 and 100 µM of Zn addition respectively. Activities of antioxidant enzymes were indicated close relationship with increase in Zn concentration and shoots showed higher activity of antioxidant enzymes than roots. The activity of APX in shoot and root were higher than CAT and GPX.
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Claims 9
Claim · model-written summary
10 and 25µM Zn stimulated seed germination relative to controls.
- Taxon
- Cicer arietinum
Cicer arietinumt0 - Treatment
- 10 and 25µMe0
- Outcome
- seed germinatione0
- Direction
- stimulatede0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cicer arietinum”
e0“In respective to their controls, low 4 concentration (10 and 25µM) of Zn greatly stimulated the seed germination”
Claim · model-written summary
100µM Zn inhibited seed germination relative to controls.
- Taxon
- Cicer arietinumCicer arietinumt0
- Treatment
- 100µMe0
- Outcome
- seed germinatione0
- Direction
- inhibitede0
- Comparator
- controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cicer arietinum”
e0“In respective to their controls, low 4 concentration (10 and 25µM) of Zn greatly stimulated the seed germination, while it was inhibited at maximum concentration (100µM)”
Claim · model-written summary
Radical, hypocotyl and root length and plant height increased up to 25 µM Zn.
- Taxon
- Cicer arietinumCicer arietinumt0
- Treatment
- 25 µM of Zn additione0
- Outcome
- Radical, hypocotyls length and root length (TI) and plant height (TI)e0
- Direction
- augmentede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cicer arietinum”
e0“Radical, hypocotyls length and root length (TI) and plant height (TI) were also augmented up to 25 µM of Zn addition”
Claim · model-written summary
Growth measures fell significantly at 75 and 100µM Zn.
- Taxon
- Cicer arietinumCicer arietinumt0
- Treatment
- 75 and 100µMe0
- Outcome
- Radical, hypocotyls length and root length (TI) and plant height (TI)e0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cicer arietinum”
e0“Radical, hypocotyls length and root length (TI) and plant height (TI) were also augmented up to 25 µM of Zn addition and after that a significant reduction were noticed at 75 and 100µM”
Claim · model-written summary
25µM Zn increased chlorophyll content.
- Taxon
- Cicer arietinumCicer arietinumt0
- Treatment
- 25µMe0
- Outcome
- chlorophyll contente0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cicer arietinum”
e0“the low concentration of Zn (25µM) addition induced chlorophyll content”
Claim · model-written summary
High Zn doses reduced chlorophyll synthesis.
- Taxon
- Cicer arietinumCicer arietinumt0
- Treatment
- high doses of Zne0
- Outcome
- chlorophyll synthesise0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cicer arietinum”
e0“high doses of Zn reduced the chlorophyll synthesis”
Claim · model-written summary
Antioxidant enzyme activity increased with Zn concentration.
- Taxon
- Cicer arietinumCicer arietinumt0
- Treatment
- increase in Zn concentratione0
- Outcome
- Activities of antioxidant enzymese0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cicer arietinum”
e0“Activities of antioxidant enzymes were indicated close relationship with increase in Zn concentration”
Claim · model-written summary
Shoot antioxidant enzyme activity exceeded root activity.
- Taxon
- Cicer arietinumCicer arietinumt0
- Organ / stage
- shootse0
- Outcome
- activity of antioxidant enzymese0
- Direction
- highere0
- Comparator
- rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cicer arietinum”
e0“shoots showed higher activity of antioxidant enzymes than roots”
Claim · model-written summary
APX activity in shoots and roots exceeded CAT and GPX.
- Taxon
- Cicer arietinumCicer arietinumt0
- Organ / stage
- shoot and roote0
- Gene
- APXe0
- Outcome
- activity of APXe0
- Direction
- highere0
- Comparator
- CAT and GPXe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cicer arietinum”
e0“The activity of APX in shoot and root were higher than CAT and GPX.”
The same questions in other papers
zinc atom · growth · Cicer arietinum (chickpea)Results differ
34 papers in the same direction as this paper · 3 in the opposite direction
- negative
- no effect
- no effect
34 papers more in this group
See all 38 papers →zinc atom · physiology: pigments · Cicer arietinum (chickpea)Positive and negative results
8 in the opposite direction
- positive
- positive
- positive
5 papers more in this group
See all 9 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.