Abstract
Abstract Purpose: Drought stress is an important challenge to global food security and agricultural output. Dramatic and quick climate change has made the problem worse. It caused unexpected impacts on the growth, development, and yield of different plants. Hence, the ultimate yield does not fulfill the required demand. Understanding the biochemical, ecological, and physiological reactions to these pressures is essential for improved management. Chitosan applications have a wide prospect of addressing abiotic issues. Moreover, chitosan and chitosan nanoparticles have a positive impact on increasing plant tolerance to abiotic stress, like drought stress. The current research investigated the consequences of drought stress on the morpho-physiological and biochemical parameters of Vicia faba plants, a comparison of chitosan and chitosan nanoparticles, and their ameliorating capacity towards drought stress. Methods: A pot experiment was conducted to evaluate the beneficial role of either chitosan (0.5, 1.0, and 2.0 gL − 1 ) or chitosan NPs (10, 20, and 30 mgL − 1 ) in inducing the Vicia faba tolerance to drought stress (60% water field capacity). Results: Drought stress significantly affected vegetative growth parameters of the shoot system, photosynthetic pigments, and indole acetic acid, accompanied by significant increases in vegetative growth parameters of the root system, some chemical composition of dry leaf tissues (total soluble sugar, soluble protein, proline, phenolic compound, glutathione, α tocopherol), hydrogen peroxide, malonialdehyde, lipoxygenase, and antioxidant enzyme activities (catalase, peroxidase, superoxide dismutase, ascorbate peroxidase, glutathione reductase). All applied treatments. chitosan and chitosan nanoparticles, at all concentrations, improved plant tolerance to drought stress via increasing vegetative growth parameters, photosynthetic pigments, indole acetic acid, total soluble sugar, soluble protein, proline, phenolic compound, glutathione, α tocopherol, and antioxidant enzyme activities, accompanied by decreases in hydrogen peroxide, malondialdehyde, and lipoxygenase enzyme. It is worthy to mention that 20 mgL − 1 chitosan nanoparticles was the most optimal treatment either under well water conditions (90% water field capacity) or drought stress conditions (60% water field capacity). Moreover, it is obvious from these results that the response of bean plants grown under well watered conditions was more pronounced than that of those plants grown under drought stress conditions to 20 mgL − 1 chitosan nanoparticles. Conclusions: Hence, it can be concluded that chitosan and chitosan nanoparticles can mitigate the negative impacts of drought stress by improving the photosybthetic pigments, endogenous indole acetic acid, and osmolyte contents, as well as the non-enzymatic and enzymatic antioxidant compounds of the Vicia faba plant.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 20
Claim · model-written summary
Drought significantly affected shoot vegetative growth.
- Taxon
- Vicia faba
Vicia fabat0 - Treatment
- Drought stresse0
- Outcome
- vegetative growth parameters of the shoot systeme0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress significantly affected vegetative growth parameters of the shoot system”
t0“Vicia faba”
Claim · model-written summary
Drought significantly affected photosynthetic pigments.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- Drought stresse0
- Outcome
- photosynthetic pigmentse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress significantly affected vegetative growth parameters of the shoot system, photosynthetic pigments, and indole acetic acid”
t0“Vicia faba”
Claim · model-written summary
Drought significantly affected indole acetic acid.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- Drought stresse0
- Outcome
- indole acetic acide0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress significantly affected vegetative growth parameters of the shoot system, photosynthetic pigments, and indole acetic acid”
t0“Vicia faba”
Claim · model-written summary
Drought increased root vegetative growth parameters.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- Drought stresse1
- Outcome
- vegetative growth parameters of the root systeme0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant increases in vegetative growth parameters of the root system”
t0“Vicia faba”
e1“Drought stress significantly affected vegetative growth parameters of the shoot system”
Claim · model-written summary
Drought increased total soluble sugar, soluble protein and proline in dry leaves.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- Drought stresse1
- Outcome
- total soluble sugar, soluble protein, prolinee0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant increases in vegetative growth parameters of the root system, some chemical composition of dry leaf tissues (total soluble sugar, soluble protein, proline, phenolic compound, glutathione, α tocopherol)”
t0“Vicia faba”
e1“Drought stress significantly affected vegetative growth parameters of the shoot system”
Claim · model-written summary
Drought increased phenolic compounds, glutathione and α tocopherol in dry leaves.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- Drought stresse1
- Outcome
- phenolic compound, glutathione, α tocopherole0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant increases in vegetative growth parameters of the root system, some chemical composition of dry leaf tissues (total soluble sugar, soluble protein, proline, phenolic compound, glutathione, α tocopherol)”
t0“Vicia faba”
e1“Drought stress significantly affected vegetative growth parameters of the shoot system”
Claim · model-written summary
Drought increased hydrogen peroxide and malonialdehyde.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- Drought stresse1
- Outcome
- hydrogen peroxide, malonialdehydee0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant increases in vegetative growth parameters of the root system, some chemical composition of dry leaf tissues (total soluble sugar, soluble protein, proline, phenolic compound, glutathione, α tocopherol), hydrogen peroxide, malonialdehyde”
t0“Vicia faba”
e1“Drought stress significantly affected vegetative growth parameters of the shoot system”
Claim · model-written summary
Drought increased lipoxygenase and antioxidant enzyme activities.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- Drought stresse1
- Outcome
- lipoxygenase, and antioxidant enzyme activitiese0
- Direction
- increaseinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lipoxygenase, and antioxidant enzyme activities (catalase, peroxidase, superoxide dismutase, ascorbate peroxidase, glutathione reductase)”
t0“Vicia faba”
e1“Drought stress significantly affected vegetative growth parameters of the shoot system”
Claim · model-written summary
Chitosan increased vegetative growth and photosynthetic pigments under drought.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- chitosane0
- Outcome
- vegetative growth parameters, photosynthetic pigmentse0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chitosan and chitosan nanoparticles, at all concentrations, improved plant tolerance to drought stress via increasing vegetative growth parameters, photosynthetic pigments”
t0“Vicia faba”
Claim · model-written summary
Chitosan nanoparticles increased vegetative growth and photosynthetic pigments under drought.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- chitosan nanoparticlese0
- Outcome
- vegetative growth parameters, photosynthetic pigmentse0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chitosan and chitosan nanoparticles, at all concentrations, improved plant tolerance to drought stress via increasing vegetative growth parameters, photosynthetic pigments”
t0“Vicia faba”
Claim · model-written summary
Chitosan increased indole acetic acid and osmolytes under drought.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- chitosane1
- Outcome
- indole acetic acid, total soluble sugar, soluble proteine0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing vegetative growth parameters, photosynthetic pigments, indole acetic acid, total soluble sugar, soluble protein, proline, phenolic compound, glutathione, α tocopherol, and antioxidant enzyme activities”
t0“Vicia faba”
e1“chitosan and chitosan nanoparticles, at all concentrations, improved plant tolerance to drought stress via increasing vegetative growth parameters, photosynthetic pigments”
Claim · model-written summary
Chitosan nanoparticles increased indole acetic acid and osmolytes under drought.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- chitosan nanoparticlese0
- Outcome
- indole acetic acid, total soluble sugar, soluble proteine0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chitosan and chitosan nanoparticles, at all concentrations, improved plant tolerance to drought stress via increasing vegetative growth parameters, photosynthetic pigments, indole acetic acid, total soluble sugar, soluble protein, proline, phenolic compound, glutathione, α tocopherol, and antioxidant enzyme activities”
t0“Vicia faba”
Claim · model-written summary
Chitosan increased proline, phenolic compounds and glutathione.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- chitosane1
- Outcome
- proline, phenolic compound, glutathionee0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing vegetative growth parameters, photosynthetic pigments, indole acetic acid, total soluble sugar, soluble protein, proline, phenolic compound, glutathione, α tocopherol, and antioxidant enzyme activities”
t0“Vicia faba”
e1“chitosan and chitosan nanoparticles, at all concentrations, improved plant tolerance to drought stress via increasing vegetative growth parameters, photosynthetic pigments”
Claim · model-written summary
Chitosan nanoparticles increased proline, phenolic compounds and glutathione.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- chitosan nanoparticlese0
- Outcome
- proline, phenolic compound, glutathionee0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chitosan and chitosan nanoparticles, at all concentrations, improved plant tolerance to drought stress via increasing vegetative growth parameters, photosynthetic pigments, indole acetic acid, total soluble sugar, soluble protein, proline, phenolic compound, glutathione, α tocopherol, and antioxidant enzyme activities”
t0“Vicia faba”
Claim · model-written summary
Chitosan increased α tocopherol and antioxidant enzyme activities.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- chitosane1
- Outcome
- α tocopherol, and antioxidant enzyme activitiese0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing vegetative growth parameters, photosynthetic pigments, indole acetic acid, total soluble sugar, soluble protein, proline, phenolic compound, glutathione, α tocopherol, and antioxidant enzyme activities”
t0“Vicia faba”
e1“chitosan and chitosan nanoparticles, at all concentrations, improved plant tolerance to drought stress via increasing vegetative growth parameters, photosynthetic pigments”
Claim · model-written summary
Chitosan nanoparticles increased α tocopherol and antioxidant enzyme activities.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- chitosan nanoparticlese0
- Outcome
- α tocopherol, and antioxidant enzyme activitiese0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chitosan and chitosan nanoparticles, at all concentrations, improved plant tolerance to drought stress via increasing vegetative growth parameters, photosynthetic pigments, indole acetic acid, total soluble sugar, soluble protein, proline, phenolic compound, glutathione, α tocopherol, and antioxidant enzyme activities”
t0“Vicia faba”
Claim · model-written summary
Chitosan reduced hydrogen peroxide, malondialdehyde and lipoxygenase.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- chitosane0
- Outcome
- hydrogen peroxide, malondialdehyde, and lipoxygenase enzymee0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chitosan and chitosan nanoparticles, at all concentrations, improved plant tolerance to drought stress via increasing vegetative growth parameters, photosynthetic pigments, indole acetic acid, total soluble sugar, soluble protein, proline, phenolic compound, glutathione, α tocopherol, and antioxidant enzyme activities, accompanied by decreases in hydrogen peroxide, malondialdehyde, and lipoxygenase enzyme”
t0“Vicia faba”
Claim · model-written summary
Chitosan nanoparticles reduced hydrogen peroxide, malondialdehyde and lipoxygenase.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- chitosan nanoparticlese0
- Outcome
- hydrogen peroxide, malondialdehyde, and lipoxygenase enzymee0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chitosan and chitosan nanoparticles, at all concentrations, improved plant tolerance to drought stress via increasing vegetative growth parameters, photosynthetic pigments, indole acetic acid, total soluble sugar, soluble protein, proline, phenolic compound, glutathione, α tocopherol, and antioxidant enzyme activities, accompanied by decreases in hydrogen peroxide, malondialdehyde, and lipoxygenase enzyme”
t0“Vicia faba”
Claim · model-written summary
The 20 mgL − 1 nanoparticle dose was optimal under both well-watered and drought conditions.
- Taxon
- Vicia fabaVicia fabat0
- Treatment
- 20 mgL − 1 chitosan nanoparticlese0
- Outcome
- most optimal treatmente0
- Direction
- most optimale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“20 mgL − 1 chitosan nanoparticles was the most optimal treatment either under well water conditions (90% water field capacity) or drought stress conditions (60% water field capacity)”
t0“Vicia faba”
Claim · model-written summary
The response to 20 mgL − 1 nanoparticles was greater under well-watered than drought conditions.
Verbatim
e0“the response of bean plants grown under well watered conditions was more pronounced than that of those plants grown under drought stress conditions to 20 mgL − 1 chitosan nanoparticles”
The same questions in other papers
drought · physiology: oxidative · Vicia faba (faba bean)Results differ
12 papers in the same direction as this paper
- negative
- negative
- negative
9 papers more in this group
See all 13 papers →nanoparticle · soil: biology · Vicia faba (faba bean)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
nanoparticle · physiology: oxidative · Vicia faba (faba bean)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
nanoparticle · physiology: osmolytes · Vicia faba (faba bean)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →nanoparticle · physiology: photosynthesis · Vicia faba (faba bean)Results agree
7 papers in the same direction as this paper
- positive
- positive
- positive
4 papers more in this group
See all 8 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.