Abstract
Abstract. Osman AOA, Mohamed IS. 2017. Antifungal evaluation of leaf extracts and fungicide against Fusarium oxysporum f.sp. lycopersici causal agent wilt of tomato. Bioteknologi 14: 1-8. Fusarium-wilt can attack tomato plants, and it is considered a crop threatening disease of the worldwide. Research was conducted to study the anti-fungal activity of various aqueous leaf extracts, i.e., peppermint, sweet basil plants and river red gum, beside fungicide Revus Top® on the growth of the fungi Fusarium oxysporum f.sp. lycopersici, a causal agent of wilt in tomato. In addition to an untreated-control, the experiment took three levels concentration for each aqueous plant extracts, i.e., 25, 50 and 100% and fungicide and applied to tomato plants. Their inhibitory effects were investigated in terms of retarding the fungal growth percentage. The results revealed that despite the inhibitory effect of fungicide against the fungal growth was more dominant, which range from 83.2% to 100% (no growth was recorded), all levels of concentration of aqueous leaf extracts of the three test plants significantly inhibited the growth of Fusarium test compared to the control treatment. Over the course of the experiment, aqueous extracts of river red gum exposed relatively high inhibition zone (44.1, 53.1 and 53.1%) followed by sweet basil (36.8, 51.5, and 54.4%) and peppermint aqueous extract as well (35.5, 39.6 and 39.6%), respectively. There is a common preference that the highest concentration of the plant extracts (peppermint, sweet basil, and river red gum 100%) and fungicide (100%) gave the significantly highest inhibition zones percent (41.9%, 48.5%, 39.3%, and 99.3%) respectively compared to the untreated control. The results showed that the increase of the dosage of aqueous leaf extracts would consistently increase their antifungal activity. Apparently, the test fungus differs in its response to the different concentrations; but overall, growth inhibition increased with the concentration. The study results may be considered promising and serve to encourage others to carry out a phytochemicals analysis of different parts of river red gum plant using different solvents so to determine the bioactive ingredient in each of these parts.
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Claims 5
Claim · model-written summary
Revus Top inhibited Fusarium growth by 83.2% to 100%.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- fungicidee1
- Interactor
- Fusarium oxysporum f.sp. lycopersici
Fusarium oxysporum f. sp. lycopersicit0pathogen - Outcome
- fungal growthe0
- Direction
- inhibitorye0
- Value
- 83.2% to 100%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inhibitory effect of fungicide against the fungal growth was more dominant, which range from 83.2% to 100% (no growth was recorded)”
t0“Fusarium oxysporum f.sp. lycopersici causal agent wilt of tomato”
e1“fungicide Revus Top®”
Claim · model-written summary
The peppermint extract inhibited Fusarium growth at all concentrations relative to control.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- pepperminte1
- Interactor
- Fusarium oxysporum f.sp. lycopersiciFusarium oxysporum f. sp. lycopersicit0pathogen
- Outcome
- growth of Fusariume0
- Direction
- inhibitede0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all levels of concentration of aqueous leaf extracts of the three test plants significantly inhibited the growth of Fusarium test compared to the control treatment”
t0“Fusarium oxysporum f.sp. lycopersici causal agent wilt of tomato”
e1“i.e., peppermint, sweet basil plants and river red gum”
Claim · model-written summary
The sweet basil extract inhibited Fusarium growth at all concentrations relative to control.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- sweet basile1
- Interactor
- Fusarium oxysporum f.sp. lycopersiciFusarium oxysporum f. sp. lycopersicit0pathogen
- Outcome
- growth of Fusariume0
- Direction
- inhibitede0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all levels of concentration of aqueous leaf extracts of the three test plants significantly inhibited the growth of Fusarium test compared to the control treatment”
t0“Fusarium oxysporum f.sp. lycopersici causal agent wilt of tomato”
e1“i.e., peppermint, sweet basil plants and river red gum”
Claim · model-written summary
The river red gum extract inhibited Fusarium growth at all concentrations relative to control.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- river red gume1
- Interactor
- Fusarium oxysporum f.sp. lycopersiciFusarium oxysporum f. sp. lycopersicit0pathogen
- Outcome
- growth of Fusariume0
- Direction
- inhibitede0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all levels of concentration of aqueous leaf extracts of the three test plants significantly inhibited the growth of Fusarium test compared to the control treatment”
t0“Fusarium oxysporum f.sp. lycopersici causal agent wilt of tomato”
e1“i.e., peppermint, sweet basil plants and river red gum”
Claim · model-written summary
Higher extract dosage increased antifungal activity.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- aqueous leaf extractse0
- Interactor
- Fusarium oxysporum f.sp. lycopersiciFusarium oxysporum f. sp. lycopersicit0pathogen
- Outcome
- antifungal activitye0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase of the dosage of aqueous leaf extracts would consistently increase their antifungal activity”
t0“Fusarium oxysporum f.sp. lycopersici causal agent wilt of tomato”
The same questions in other papers
Ocimum basilicum · Fusarium oxysporum f. sp. lycopersici · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
Mentha x piperita · Fusarium oxysporum f. sp. lycopersici · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
fungicide · Fusarium oxysporum f. sp. lycopersici · Solanum lycopersicum (tomato)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.