Abstract
Conventional agrochemicals are underutilized due to their large particle sizes, poor foliar retention rates, and difficult translocation in plants, and the development of functional nanodelivery carriers with high adhesion to the plant body surface and efficient uptake and translocation in plants remains challenging. In this study, a nanodelivery system based on a pectin-encapsulated iron-based MOF (TF@Fe-MOF-PT NPs) was constructed to enhance the utilization of thifluzamide (TF) in rice plants by taking advantage of the pectin affinity for plant cell walls. The prepared TF@Fe-MOF-PT NPs exhibited an average particle size of 126.55 nm, a loading capacity of 27.41%, and excellent dual-stimulus responses to reactive oxygen species and pectinase. Foliar washing experiments showed that the TF@Fe-MOF-PT NPs were efficiently adhered to the surfaces of rice leaves and stems. Confocal laser scanning microscopy showed that fluorescently labeled TF@Fe-MOF-PT NPs were bidirectionally delivered through vascular bundles in rice plants. The in vitro bactericidal activity of the TF@Fe-MOF-PT NPs showed better inhibitory activity than that of a TF suspension (TF SC), with an EC 50 of 0.021 mg/L. A greenhouse test showed that the TF@Fe-MOF-PT NPs were more effective than TF SC at 7 and 14 d, with control effects of 85.88 and 78.59%, respectively. It also reduced the inhibition of seed stem length and root length by TF SC and promoted seedling growth. These results demonstrated that TF@Fe-MOF-PT NPs can be used as a pesticide nanodelivery system for efficient delivery and intelligent release in plants and applied for sustainable control of pests and diseases.
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Claims 10
Claim · model-written summary
The TF@Fe-MOF-PT NPs had an average particle size of 126.55 nm.
Verbatim
e1“The prepared TF@Fe-MOF-PT NPs exhibited an average particle size of 126.55 nm, a loading capacity of 27.41%, and excellent dual-stimulus responses to reactive oxygen species and pectinase”
Claim · model-written summary
The TF@Fe-MOF-PT NPs had a loading capacity of 27.41%.
Verbatim
e1“The prepared TF@Fe-MOF-PT NPs exhibited an average particle size of 126.55 nm, a loading capacity of 27.41%, and excellent dual-stimulus responses to reactive oxygen species and pectinase”
Claim · model-written summary
The TF@Fe-MOF-PT NPs showed excellent dual-stimulus responses to reactive oxygen species and pectinase.
- Outcome
- dual-stimulus responses to reactive oxygen species and pectinasee1
Not reportedTaxon
Verbatim
e1“The prepared TF@Fe-MOF-PT NPs exhibited an average particle size of 126.55 nm, a loading capacity of 27.41%, and excellent dual-stimulus responses to reactive oxygen species and pectinase”
Claim · model-written summary
TF@Fe-MOF-PT NPs were efficiently adhered to the surfaces of rice leaves and stems.
- Taxon
- rice
Oryza sativae3 - Organ / stage
- leaves and stemse3
- Treatment
- TF@Fe-MOF-PT NPse3
- Outcome
- efficiently adhered to the surfacese3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Foliar washing experiments showed that the TF@Fe-MOF-PT NPs were efficiently adhered to the surfaces of rice leaves and stems”
Claim · model-written summary
Fluorescently labeled TF@Fe-MOF-PT NPs were bidirectionally delivered through vascular bundles in rice plants.
- Taxon
- riceOryza sativae4
- Organ / stage
- vascular bundlese4
- Treatment
- fluorescently labeled TF@Fe-MOF-PT NPse4
- Outcome
- bidirectionally deliverede4
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Confocal laser scanning microscopy showed that fluorescently labeled TF@Fe-MOF-PT NPs were bidirectionally delivered through vascular bundles in rice plants”
Claim · model-written summary
In vitro, TF@Fe-MOF-PT NPs showed better bactericidal inhibitory activity than the TF suspension (TF SC) in rice-associated tests.
- Taxon
- riceOryza sativae2
- Treatment
- TF@Fe-MOF-PT NPse5
- Outcome
- in vitro bactericidal activitye5
- Direction
- bettere5
- Comparator
- TF suspension (TF SC)e5
- Setting
- in vitroe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The in vitro bactericidal activity of the TF@Fe-MOF-PT NPs showed better inhibitory activity than that of a TF suspension (TF SC), with an EC 50 of 0.021 mg/L”
e2“enhance the utilization of thifluzamide (TF) in rice plants”
Claim · model-written summary
The in vitro EC50 of TF@Fe-MOF-PT NPs was 0.021 mg/L.
Verbatim
e5“The in vitro bactericidal activity of the TF@Fe-MOF-PT NPs showed better inhibitory activity than that of a TF suspension (TF SC), with an EC 50 of 0.021 mg/L”
Claim · model-written summary
In a greenhouse test, TF@Fe-MOF-PT NPs were more effective than TF SC at 7 and 14 d, with control effects of 85.88 and 78.59%.
- Taxon
- riceOryza sativae2
- Treatment
- TF@Fe-MOF-PT NPse6
- Outcome
- control effectse6
- Direction
- more effectivee6
- Value
- 85.88 and 78.59%e6
- Qualifier
- at 7 and 14 de6
- Comparator
- TF SCe6
- Setting
- greenhouse teste6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“A greenhouse test showed that the TF@Fe-MOF-PT NPs were more effective than TF SC at 7 and 14 d, with control effects of 85.88 and 78.59%, respectively”
e2“enhance the utilization of thifluzamide (TF) in rice plants”
Claim · model-written summary
TF@Fe-MOF-PT NPs reduced the inhibition of seed stem length and root length caused by TF SC in rice.
- Taxon
- riceOryza sativae2
- Treatment
- TF@Fe-MOF-PT NPse6
- Outcome
- inhibition of seed stem length and root lengthe7
- Direction
- reducede7
- Comparator
- TF SCe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“It also reduced the inhibition of seed stem length and root length by TF SC and promoted seedling growth”
e2“enhance the utilization of thifluzamide (TF) in rice plants”
e6“A greenhouse test showed that the TF@Fe-MOF-PT NPs were more effective than TF SC at 7 and 14 d, with control effects of 85.88 and 78.59%, respectively”
Claim · model-written summary
TF@Fe-MOF-PT NPs promoted seedling growth in rice.
- Taxon
- riceOryza sativae2
- Treatment
- TF@Fe-MOF-PT NPse6
- Outcome
- seedling growthe7
- Direction
- promotede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“It also reduced the inhibition of seed stem length and root length by TF SC and promoted seedling growth”
e2“enhance the utilization of thifluzamide (TF) in rice plants”
e6“A greenhouse test showed that the TF@Fe-MOF-PT NPs were more effective than TF SC at 7 and 14 d, with control effects of 85.88 and 78.59%, respectively”
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