Abstract
Plants are sessile and mostly exposed to various environmental stresses which hamper plant growth, development, and significantly decline its production. Drought stress is considered to be one of the most significant limiting factors for crop plants, notably in arid and semi-arid parts the world. Therefore, the present study aimed to evaluate the potential impact of different concentrations (10, 100, and 200 µg/mL) of kinetin capped zinc oxide nanoparticles (Kn-ZnONPs) on Vigna radiata (L.) R. Wilczek under varying levels (5%, 10%, 15%) of PEG-induced drought stress. ZnONPs were synthesized by a co-precipitation method using Zinc acetate as a precursor at pH-12, incinerated to 500 °C, and kinetin was used as a surface functionalizing agent. The resulting Kn-ZnONPs were characterized by various contemporary analytical techniques, including SEM, SEM-EDS, XRD, DLS, and Zeta potential and IR spectroscopy. Crystalline Kn-ZnONPs, with a zeta potential of 27.8 mV and a size of 67.78 nm, of hexagonal wurtzite structure and vibrational stretches associated with N-H, C-O, C-N, etc., were confirmed. PEG-induced drought stress significantly reduced the growth of V. radiata by declining the chlorophyll and carotenoid contents. Moreover, a significant decrease in the levels of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), ascorbate peroxidase (APX), soluble sugar contents, proline, protein contents, phenol, and tannin were observed compared to the control. However, the exogenous application of Kn-ZnONPs ameliorated all photosynthetic parameters by up-regulating the antioxidant defense system through the promotion of SOD, POD, CAT, and lipid peroxidation levels. The biochemical parameters, such as proteins, soluble sugars, and proline, were observed to be maximum in plants treated with 200 µg/mL Kn-ZnONPs under 5% drought stress. The application of Kn-ZnONPs also enhanced the total phenol contents, flavonoid, and tannin contents. In conclusion, the findings of this study demonstrate that the exogenous application of Kn-ZnONPs provides beneficial effects to V. radiata by attenuating the damaging effects of drought stress through the up-regulation of the antioxidant defense system and osmolytes. These results suggest that Kn-ZnONPs have potential as a novel approach to improve crop productivity under drought stress conditions.
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Claims 6
Claim · model-written summary
PEG drought reduced growth, chlorophyll and carotenoids.
- Taxon
- V. radiata
.jpg?width=60)
Vigna radiatae0 - Treatment
- PEG-induced drought stresse0
- Outcome
- growth of V. radiatae0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“PEG-induced drought stress significantly reduced the growth of V. radiata by declining the chlorophyll and carotenoid contents”
Claim · model-written summary
PEG drought reduced antioxidant enzymes.
- Taxon
- Vigna radiataVigna radiatat0
- Treatment
- PEG-induced drought stresse1
- Outcome
- superoxide dismutase (SOD), peroxidase (POD), catalase (CAT)e0
- Direction
- decreasee0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant decrease in the levels of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), ascorbate peroxidase (APX), soluble sugar contents, proline, protein contents, phenol, and tannin were observed compared to the control”
t0“Vigna radiata (L.) R. Wilczek”
t1“Vigna radiata (L.) R. Wilczek”
e1“PEG-induced drought stress significantly reduced the growth of V. radiata by declining the chlorophyll and carotenoid contents”
Claim · model-written summary
PEG drought reduced sugars, proline and protein.
- Taxon
- Vigna radiataVigna radiatat0
- Treatment
- PEG-induced drought stresse1
- Outcome
- soluble sugar contents, proline, protein contentse0
- Direction
- decreasee0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a significant decrease in the levels of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), ascorbate peroxidase (APX), soluble sugar contents, proline, protein contents, phenol, and tannin were observed compared to the control”
t0“Vigna radiata (L.) R. Wilczek (Mung Bean)”
t1“Vigna radiata (L.) R. Wilczek (Mung Bean)”
e1“PEG-induced drought stress significantly reduced the growth of V. radiata by declining the chlorophyll and carotenoid contents”
Claim · model-written summary
Kn-ZnONPs improved photosynthetic parameters and antioxidant activity.
- Taxon
- Vigna radiataVigna radiatat0
- Treatment
- Kn-ZnONPse0
- Outcome
- photosynthetic parameterse0
- Direction
- amelioratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the exogenous application of Kn-ZnONPs ameliorated all photosynthetic parameters by up-regulating the antioxidant defense system through the promotion of SOD, POD, CAT, and lipid peroxidation levels”
t0“Vigna radiata (L.) R. Wilczek”
t1“Vigna radiata (L.) R. Wilczek”
e1“PEG-induced drought stress significantly reduced the growth of V. radiata by declining the chlorophyll and carotenoid contents”
Claim · model-written summary
Proteins, sugars and proline were maximal under 200 µg/mL Kn-ZnONPs and 5% drought.
- Taxon
- Vigna radiataVigna radiatat0
- Treatment
- 200 µg/mL Kn-ZnONPse0
- Outcome
- proteins, soluble sugars, and prolinee0
- Direction
- maximume0
- Qualifier
- 5% drought stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“proteins, soluble sugars, and proline, were observed to be maximum in plants treated with 200 µg/mL Kn-ZnONPs under 5% drought stress”
t0“Vigna radiata (L.) R. Wilczek”
t1“Vigna radiata (L.) R. Wilczek”
e1“PEG-induced drought stress significantly reduced the growth of V. radiata by declining the chlorophyll and carotenoid contents”
Claim · model-written summary
Kn-ZnONPs increased phenol, flavonoid and tannin contents.
- Taxon
- Vigna radiataVigna radiatat0
- Treatment
- Kn-ZnONPse0
- Outcome
- total phenol contents, flavonoid, and tannin contentse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of Kn-ZnONPs also enhanced the total phenol contents, flavonoid, and tannin contents”
t0“Vigna radiata (L.) R. Wilczek”
t1“Vigna radiata (L.) R. Wilczek”
e1“PEG-induced drought stress significantly reduced the growth of V. radiata by declining the chlorophyll and carotenoid contents”
The same questions in other papers
kinetin · physiology: photosynthesis · Vigna radiata (mung bean)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
drought · physiology: antioxidant enzymes · Vigna radiata (mung bean)Results differ
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
drought · physiology: osmolytes · Vigna radiata (mung bean)Results differ
3 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
4 papers more in this group
See all 8 papers →drought · growth · Vigna radiata (mung bean)Positive and negative results
35 papers in the same direction as this paper · 9 in the opposite direction
- negative
- positive
- positive
41 papers more in this group
See all 45 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.