Abstract
Root -knot nematode is a challenge of most vegetable production and there is a critical need to an alternative, effective, safe technique for control. The main objective of this study was to detect the effect of five doses of gamma irradiation on Meloidogyne incognita (Mi) infectivity, host growth, and DNA damage. Three-week-old- seedlings of: tomato, (Solanum lycopersicum), and pepper (Capsicum annum), were irradiated with five doses i.e. 100, 250,500,750, and 1000 Gy and transplanted in 20cm diameter pots in the screen-house. Halves of the replicates/ dose were inoculated with 1000 2IJs, while others were kept as controls. DNA damage was measured by comet assay which performed on the host leaves. Data demonstrated that, all nematode parameters were decreased beginning from the lowest does (100Gy), while, the plant growth parameters were enhanced significantly at 100 and 250Gy even when infected with nematodes and so did the chlorophyll a,b, carotenoids, and total phenols, antioxidative enzymes; Polyphenol oxidase (PPO), peroxidase (POX), Catalase (CAT) and Superoxide dismutase (SOD). Likewise, quantity of DNA damage was represented as mean of % DNA in tail, tail moment, tail length, and olive tail moment which were more pronounced than the control. As a conclusion, gamma irradiation at 100 and 250 Gy could protect host plants of nematode infection and increase the plant growth. Therefore, this approach introduces a promising technique in the integrated pest programs without any suppressive effects on the growth of plant hosts.
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Claims 6
Claim · model-written summary
Gamma irradiation lowered nematode parameters beginning at 100 Gy.
- Taxon
- tomato
Solanum lycopersicume1 - Treatment
- gamma irradiatione2
- Interactor
- Meloidogyne incognita
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogyne incognitae2pest - Outcome
- nematode parameterse0
- Direction
- decreasede0
- Value
- 100Gye0
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“all nematode parameters were decreased beginning from the lowest does (100Gy)”
e1“tomato, (Solanum lycopersicum), and pepper (Capsicum annum)”
e2“gamma irradiation on Meloidogyne incognita (Mi) infectivity”
Claim · model-written summary
Gamma irradiation at 100 and 250 Gy significantly enhanced host growth, even with nematodes.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- 100 and 250Gye0
- Outcome
- plant growth parameterse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant growth parameters were enhanced significantly at 100 and 250Gy even when infected with nematodes”
e1“tomato, (Solanum lycopersicum), and pepper (Capsicum annum)”
e2“gamma irradiation on Meloidogyne incognita (Mi) infectivity”
Claim · model-written summary
Irradiation increased chlorophyll and carotenoids.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- gamma irradiatione2
- Outcome
- chlorophyll a,b, carotenoidse0
- Direction
- increaseinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“so did the chlorophyll a,b, carotenoids, and total phenols”
e1“tomato, (Solanum lycopersicum), and pepper (Capsicum annum)”
e2“gamma irradiation on Meloidogyne incognita (Mi) infectivity”
Claim · model-written summary
Irradiation increased total phenols.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- gamma irradiatione2
- Outcome
- total phenolse0
- Direction
- increaseinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“so did the chlorophyll a,b, carotenoids, and total phenols”
e1“tomato, (Solanum lycopersicum), and pepper (Capsicum annum)”
e2“gamma irradiation on Meloidogyne incognita (Mi) infectivity”
Claim · model-written summary
Irradiation increased antioxidative enzyme measures.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- gamma irradiatione2
- Outcome
- antioxidative enzymese0
- Direction
- increaseinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“antioxidative enzymes; Polyphenol oxidase (PPO), peroxidase (POX), Catalase (CAT) and Superoxide dismutase (SOD).”
e1“tomato, (Solanum lycopersicum), and pepper (Capsicum annum)”
e2“gamma irradiation on Meloidogyne incognita (Mi) infectivity”
Claim · model-written summary
Irradiation increased DNA damage measures relative to control.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- gamma irradiatione2
- Outcome
- quantity of DNA damagee0
- Direction
- more pronouncede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quantity of DNA damage was represented as mean of % DNA in tail, tail moment, tail length, and olive tail moment which were more pronounced than the control.”
e1“tomato, (Solanum lycopersicum), and pepper (Capsicum annum)”
e2“gamma irradiation on Meloidogyne incognita (Mi) infectivity”
The same questions in other papers
radiation · quality: phytochemicals · Solanum lycopersicum (tomato)Results differ
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- negative
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1 in the opposite direction
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radiation · cytology · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- positive
radiation · Meloidogyne incognita · Solanum lycopersicum (tomato)Positive and negative results
2 in the opposite direction
- negative
- negative
radiation · physiology: pigments · Solanum lycopersicum (tomato)Positive and negative results
6 papers in the same direction as this paper · 4 in the opposite direction
- no effect
- negative
- negative
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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.