Abstract
The enhancement of pesticide utilization efficiency for improved biological activity, while promoting crop growth to enhance disease resistance, holds significant importance in agricultural production. In this study, we developed an enzyme-responsive azoxystrobin (AZOX) delivery system using iron-based mesoporous materials as porous carriers and pectin (Pec) as an encapsulation agent to manage rice sheath blight. The resultant AZOX-AFS-Pec nanoparticles (NPs) exhibit high loading capacity and could intelligently release AZOX in acidic conditions in the presence of pectinase. Notably, AZOX-AFS-Pec NPs demonstrated improved wetting and adhesion properties on rice blades, thereby augmenting AZOX utilization. Furthermore, AZOX-AFS-Pec NPs enhanced fungicidal activity against rice sheath blight, with pot experiments revealing comparable control efficacy on rice sheath blight to AZOX suspension concentration (SC). Specifically, AZOX-AFS-Pec NPs exhibited superior prevention and prolonged protection against rice sheath blight compared to AZOX SC. Additionally, continuous release of Fe 2+ and Fe 3+ by AZOX-AFS-Pec NPs increased chlorophyll content and promoted rice growth. Moreover, these NPs increased salicylic acid (SA) levels in rice plants, fortifying disease resistance. Importantly, AZOX-AFS-Pec NPs demonstrated over a 2-fold reduction in acute toxicity to earthworms compared to AZOX SC. Therefore, stimuli-responsive AZOX-AFS-Pec NPs show great promise for enhancing pesticide effectiveness against pathogens, improving crop traits, and fortifying disease resistance.
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Claims 9
Claim · model-written summary
Nanoparticles had high loading capacity and released azoxystrobin under acidic pectinase conditions.
- Taxon
- rice
Oryza sativat0 - Outcome
- high loading capacitye0
- Qualifier
- acidic conditions in the presence of pectinasee0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The resultant AZOX-AFS-Pec nanoparticles (NPs) exhibit high loading capacity and could intelligently release AZOX in acidic conditions in the presence of pectinase.”
t0“Rice”
Claim · model-written summary
Nanoparticles improved wetting and adhesion on rice blades.
- Taxon
- riceOryza sativae0
- Organ / stage
- rice bladese0
- Treatment
- AZOX-AFS-Pec NPse0
- Outcome
- wetting and adhesion propertiese0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AZOX-AFS-Pec NPs demonstrated improved wetting and adhesion properties on rice blades”
Claim · model-written summary
Nanoparticles improved fungicidal activity against rice sheath blight.
- Taxon
- riceOryza sativae0
- Treatment
- AZOX-AFS-Pec NPse0
- Outcome
- fungicidal activity against rice sheath blighte0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AZOX-AFS-Pec NPs enhanced fungicidal activity against rice sheath blight”
Claim · model-written summary
In pots, nanoparticle control efficacy was comparable with suspension concentrate.
- Taxon
- riceOryza sativae0
- Treatment
- AZOX-AFS-Pec NPse1
- Outcome
- control efficacy on rice sheath blighte0
- Direction
- comparablee0
- Comparator
- AZOX suspension concentration (SC)e0
- Setting
- pot experimentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pot experiments revealing comparable control efficacy on rice sheath blight to AZOX suspension concentration (SC)”
t0“Rice”
e1“AZOX-AFS-Pec NPs enhanced fungicidal activity against rice sheath blight”
Claim · model-written summary
Nanoparticles offered superior prevention and longer protection than suspension concentrate.
- Taxon
- riceOryza sativat0
- Treatment
- AZOX-AFS-Pec NPse0
- Outcome
- prevention and prolonged protection against rice sheath blighte0
- Direction
- superiore0
- Comparator
- AZOX SCe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AZOX-AFS-Pec NPs exhibited superior prevention and prolonged protection against rice sheath blight compared to AZOX SC”
t0“Rice”
Claim · model-written summary
Nanoparticles increased chlorophyll content.
- Taxon
- riceOryza sativae0
- Treatment
- AZOX-AFS-Pec NPse0
- Compound
- Fe 2+ and Fe 3+e0
- Outcome
- chlorophyll contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“continuous release of Fe 2+ and Fe 3+ by AZOX-AFS-Pec NPs increased chlorophyll content and promoted rice growth”
Claim · model-written summary
Nanoparticles promoted rice growth.
- Taxon
- riceOryza sativae0
- Treatment
- AZOX-AFS-Pec NPse0
- Outcome
- rice growthe0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“continuous release of Fe 2+ and Fe 3+ by AZOX-AFS-Pec NPs increased chlorophyll content and promoted rice growth”
Claim · model-written summary
Nanoparticles increased rice salicylic acid levels.
- Taxon
- riceOryza sativae0
- Treatment
- NPse0
- Outcome
- salicylic acid (SA) levelse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these NPs increased salicylic acid (SA) levels in rice plants”
Claim · model-written summary
Nanoparticles reduced acute earthworm toxicity by more than twofold compared with suspension concentrate.
- Taxon
- riceOryza sativat0
- Treatment
- AZOX-AFS-Pec NPse0
- Outcome
- acute toxicity to earthwormse0
- Direction
- reductione0
- Value
- over a 2-folde0
- Comparator
- AZOX SCe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AZOX-AFS-Pec NPs demonstrated over a 2-fold reduction in acute toxicity to earthworms compared to AZOX SC”
t0“Rice”
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