Abstract
Phytotoxic effects of Pb as Pb(NO3)2 and silver nanoparticles on Mung bean (Vigna radiata) planted on contaminated soil was assessed in terms of growth, yield, chlorophyll pigments, phenol and flavonoid content at 120 ppm concentration. Experiments were carried out with 4 treatments in 10 days. Treatments were including (T1) control, (T2) silver nanoparticles (50 ppm), (T3) Pb as Pb (NO3)2 (120 ppm) and (T4) silver nanoparticles (50 ppm) plus Pb as Pb(NO3)2 (120 ppm). Regarding the pigment content, silver nanoparticles-treated plants showed a remarkable increase of chlorophyll. The loss of chlorophyll content was associated with disturbance in photosynthetic capacity which ultimately results in the reduction of Vigna radiate growth. Pb caused a fall in the total content of phenols, while the content of flavonoid not significantly changed. The minimum decrease in root length, weight of root fresh and stem fresh was observed in T4 group, but this factors increased in the other treatments. Also, length of stem and seedling height decreased in control group. Increase length and fresh weight of stem in Pb-treated plants suggest that compatible solutes may contribute to osmotic adjustment at the cellular level and enzyme protection stabilizing the structure of macromolecules and organelles.
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Claims 10
Claim · model-written summary
Silver nanoparticles increased chlorophyll.
- Taxon
- Mung bean
.jpg?width=60)
Vigna radiatat0 - Treatment
- silver nanoparticlese0
- Outcome
- chlorophylle0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“silver nanoparticles-treated plants showed a remarkable increase of chlorophyll”
t0“Mung bean (Vigna radiata)”
Claim · model-written summary
Chlorophyll loss was associated with disturbed photosynthetic capacity.
- Taxon
- Mung beanVigna radiatat0
- Compound
- chlorophylle0
- Outcome
- photosynthetic capacitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The loss of chlorophyll content was associated with disturbance in photosynthetic capacity”
t0“Mung bean (Vigna radiata)”
Claim · model-written summary
Disturbed photosynthetic capacity was linked to reduced growth.
Verbatim
e0“disturbance in photosynthetic capacity which ultimately results in the reduction of Vigna radiate growth”
Claim · model-written summary
Pb lowered total phenol content.
- Taxon
- Mung beanVigna radiatat0
- Treatment
- Pbe0
- Outcome
- total content of phenolse0
- Direction
- falle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pb caused a fall in the total content of phenols”
t0“Mung bean (Vigna radiata)”
Claim · model-written summary
Flavonoid content did not change significantly under Pb.
- Taxon
- Mung beanVigna radiatat0
- Treatment
- Pbe0
- Outcome
- content of flavonoide0
- Direction
- not significantly changede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pb caused a fall in the total content of phenols, while the content of flavonoid not significantly changed”
t0“Mung bean (Vigna radiata)”
Claim · model-written summary
The combined treatment had the minimum decrease in root length, root fresh weight, and stem fresh weight.
- Taxon
- Mung beanVigna radiatat0
- Treatment
- T4e0
- Outcome
- root length, weight of root fresh and stem freshe0
- Direction
- minimum decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The minimum decrease in root length, weight of root fresh and stem fresh was observed in T4 group”
t0“Mung bean (Vigna radiata)”
Claim · model-written summary
These growth factors increased in other treatments.
- Taxon
- Mung beanVigna radiatat0
- Treatment
- other treatmentse0
- Outcome
- this factorse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but this factors increased in the other treatments”
t0“Mung bean (Vigna radiata)”
Claim · model-written summary
Stem length and seedling height decreased in the control group.
- Taxon
- Mung beanVigna radiatat0
- Treatment
- control groupe0
- Outcome
- length of stem and seedling heighte0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“length of stem and seedling height decreased in control group”
t0“Mung bean (Vigna radiata)”
Claim · model-written summary
Pb-treated plants had greater stem length and fresh weight.
- Taxon
- Mung beanVigna radiatat0
- Treatment
- Pb-treatede0
- Outcome
- length and fresh weight of steme0
- Direction
- Increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increase length and fresh weight of stem in Pb-treated plants”
t0“Mung bean (Vigna radiata)”
Claim · model-written summary
The authors suggest compatible solutes contribute to osmotic adjustment and enzyme protection.
- Taxon
- Mung beanVigna radiatat0
- Outcome
- osmotic adjustment at the cellular level and enzyme protectione0
- Qualifier
- compatible solutese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“suggest that compatible solutes may contribute to osmotic adjustment at the cellular level and enzyme protection stabilizing the structure of macromolecules and organelles”
t0“Mung bean (Vigna radiata)”
The same questions in other papers
lead atom · growth · Vigna radiata (mung bean)Results differ
9 in the opposite direction
- negative
- negative
- negative
6 papers more in this group
See all 10 papers →silver nanoparticle · physiology: pigments · Vigna radiata (mung bean)Results agree
1 paper in the same direction as this paper
- 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.