Abstract
With nematicides progressively being banned due to their environmental impact, an urgent need for novel and sustainable control strategies has arisen. Stimulation of plant immunity, a phenomenon referred to as “induced resistance” (IR), is a promising option. In this study, Cucurbitaceae COld Peeling Extracts (CCOPEs) were shown to protect rice ( Oryza sativa ) and tomato ( Solanum lycopersicum ) against the root-knot nematodes Meloidogyne graminicola and Meloidogyne incognita , respectively. Focusing on CCOPE derived from peels of melon ( Cucumis melo var. cantalupensis ; mCOPE), we unveiled that this extract combines an IR-triggering capacity with direct nematicidal effects. Under lab conditions, the observed resistance was comparable to the protection obtained by commercially available IR stimuli or nematicides. Via mRNA sequencing and confirmatory biochemical assays, it was proven that mCOPE-IR in rice is associated with systemic effects on ethylene accumulation, reactive oxygen species (ROS) metabolism and cell wall-related modifications. While no negative trade-offs were detected with respect to plant growth or plant susceptibility to necrotrophic pests or pathogens, additional infection experiments indicated that mCOPE may have a predominant activity toward biotrophs. In summary, the presented data illustrate a propitious potential for these extracts, which can be derived from agro-industrial waste streams.
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Claims 10
Claim · model-written summary
CCOPE protected rice against M. graminicola.
- Taxon
- rice
Oryza sativae0 - Treatment
- Cucurbitaceae COld Peeling Extracts (CCOPEs)e0
- Interactor
- Meloidogyne graminicolaMeloidogyne graminicolae0pathogen
- Outcome
- protect ricee0
- Direction
- protecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cucurbitaceae COld Peeling Extracts (CCOPEs) were shown to protect rice ( Oryza sativa ) and tomato ( Solanum lycopersicum ) against the root-knot nematodes Meloidogyne graminicola and Meloidogyne incognita , respectively”
Claim · model-written summary
CCOPE protected tomato against M. incognita.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- Cucurbitaceae COld Peeling Extracts (CCOPEs)e0
- Interactor
- Meloidogyne incognita
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogyne incognitae0pathogen - Outcome
- protect rice ( Oryza sativa ) and tomatoe0
- Direction
- protecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“Cucurbitaceae COld Peeling Extracts (CCOPEs) were shown to protect rice ( Oryza sativa ) and tomato ( Solanum lycopersicum ) against the root-knot nematodes Meloidogyne graminicola and Meloidogyne incognita , respectively”
Claim · model-written summary
Melon peel extract triggered induced resistance.
- Taxon
- riceOryza sativae1
- Treatment
- mCOPEe0
- Outcome
- IR-triggering capacitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CCOPE derived from peels of melon ( Cucumis melo var. cantalupensis ; mCOPE), we unveiled that this extract combines an IR-triggering capacity with direct nematicidal effects”
e1“mCOPE-IR in rice”
Claim · model-written summary
Melon peel extract had direct nematicidal effects.
- Taxon
- riceOryza sativae2
- Treatment
- mCOPEe1
- Interactor
- Meloidogyne graminicolaMeloidogyne graminicolae3pathogen
- Outcome
- direct nematicidal effectse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this extract combines an IR-triggering capacity with direct nematicidal effects”
e1“CCOPE derived from peels of melon ( Cucumis melo var. cantalupensis ; mCOPE)”
e2“mCOPE-IR in rice”
e3“root-knot nematodes Meloidogyne graminicola and Meloidogyne incognita”
Claim · model-written summary
Under laboratory conditions, mCOPE protection was comparable to commercial resistance stimuli or nematicides.
- Taxon
- riceOryza sativae1
- Treatment
- mCOPEe2
- Outcome
- observed resistancee0
- Direction
- comparablee0
- Comparator
- commercially available IR stimuli or nematicidese0
- Setting
- lab conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under lab conditions, the observed resistance was comparable to the protection obtained by commercially available IR stimuli or nematicides”
e1“mCOPE-IR in rice”
e2“peels of melon ( Cucumis melo var. cantalupensis ; mCOPE)”
Claim · model-written summary
Rice mCOPE-induced resistance was associated with systemic ethylene accumulation.
- Taxon
- riceOryza sativae0
- Treatment
- mCOPE-IRe0
- Outcome
- ethylene accumulatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mCOPE-IR in rice is associated with systemic effects on ethylene accumulation, reactive oxygen species (ROS) metabolism and cell wall-related modifications”
Claim · model-written summary
Rice mCOPE-induced resistance was associated with systemic ROS metabolism effects and cell wall changes.
- Taxon
- riceOryza sativae0
- Treatment
- mCOPE-IRe0
- Outcome
- reactive oxygen species (ROS) metabolism and cell wall-related modificationse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mCOPE-IR in rice is associated with systemic effects on ethylene accumulation, reactive oxygen species (ROS) metabolism and cell wall-related modifications”
Claim · model-written summary
No negative plant growth trade-off was detected with mCOPE.
- Taxon
- riceOryza sativae1
- Outcome
- plant growthe0
- Direction
- no negative trade-offse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no negative trade-offs were detected with respect to plant growth”
e1“mCOPE-IR in rice”
Claim · model-written summary
No negative susceptibility trade-off to necrotrophic pests or pathogens was detected.
- Taxon
- riceOryza sativae1
- Interactor
- necrotrophic pests or pathogense0pathogen
- Outcome
- plant susceptibility to necrotrophic pests or pathogense0
- Direction
- no negative trade-offse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no negative trade-offs were detected with respect to plant growth or plant susceptibility to necrotrophic pests or pathogens”
e1“mCOPE-IR in rice”
Claim · model-written summary
Additional infections indicated mCOPE may act predominantly against biotrophs.
- Taxon
- riceOryza sativae1
- Treatment
- mCOPEe0
- Interactor
- biotrophse0pathogen
- Outcome
- predominant activity toward biotrophse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“additional infection experiments indicated that mCOPE may have a predominant activity toward biotrophs”
e1“mCOPE-IR in rice”
The same questions in other papers
botanical · Meloidogyne incognita · Solanum lycopersicum (tomato)Positive and negative results
114 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
113 papers more in this group
See all 117 papers →cold · Meloidogyne incognita · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
botanical · Meloidogyne graminicola · Oryza sativa (rice)Results agree
10 papers in the same direction as this paper
- positive
- positive
- positive
7 papers more in this group
See all 11 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.