Abstract
In this study, the allelopathic properties of Medicago sativa on different weeds were investigated under in vitro conditions. The compounds involved in the autotoxicity of M. sativa were analyzed using high-performance liquid chromatography. The extracts of all concentrations inhibited the growth of the calluses of Digitaria ciliaris, Chenopodium album, Amaranthus lividus, Portulaca oleracea, and Commelina communis. Six allelopathic compounds in alfalfa were identified and quantified, and the most predominant phenolic compounds were salicylic acid and p-hydroxybenzoic acid. Various concentrations (10−2, 10−3, and 10−5 M) of all the tested phenolic compounds exerted inhibitory effects on callus fresh weight. Rutin, salicylic acid, scopoletin, and quercetin significantly inhibited alfalfa seed germination. Of the seven identified saponins, medicagenic acid saponins exhibited the highest autotoxic effect and significantly lowered seed germination rate. Principal component analysis showed that the phenolic compounds and saponin composition significantly contributed to the different variables. The highly phytotoxic properties of the alfalfa-derived phenolic compounds and saponins indicate that these phytochemicals can be a potential source of bioherbicides.
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Claims 15
Claim · model-written summary
Alfalfa extracts inhibited Digitaria ciliaris callus growth at all concentrations.
- Taxon
- Medicago sativa
Medicago sativat0 - Treatment
- extracts of all concentrationse0
- Interactor
- Digitaria ciliaris
Digitaria ciliarise0weed - Outcome
- growth of the calluses of Digitaria ciliarise0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The extracts of all concentrations inhibited the growth of the calluses of Digitaria ciliaris, Chenopodium album, Amaranthus lividus, Portulaca oleracea, and Commelina communis”
t0“Medicago sativa”
Claim · model-written summary
Alfalfa extracts inhibited Chenopodium album callus growth at all concentrations.
- Taxon
- Medicago sativaMedicago sativat0
- Treatment
- extracts of all concentrationse0
- Interactor
- Chenopodium album
Chenopodium albume0weed - Outcome
- growth of the calluses of Digitaria ciliaris, Chenopodium albume0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The extracts of all concentrations inhibited the growth of the calluses of Digitaria ciliaris, Chenopodium album, Amaranthus lividus, Portulaca oleracea, and Commelina communis”
t0“Medicago sativa”
Claim · model-written summary
Alfalfa extracts inhibited Amaranthus lividus callus growth at all concentrations.
- Taxon
- Medicago sativaMedicago sativat0
- Treatment
- extracts of all concentrationse0
- Interactor
- Amaranthus lividus
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Amaranthus blitum subsp. oleraceuse0weed - Outcome
- growth of the callusese0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The extracts of all concentrations inhibited the growth of the calluses of Digitaria ciliaris, Chenopodium album, Amaranthus lividus, Portulaca oleracea, and Commelina communis”
t0“Medicago sativa”
Claim · model-written summary
Alfalfa extracts inhibited Portulaca oleracea callus growth at all concentrations.
- Taxon
- Medicago sativaMedicago sativat0
- Treatment
- extracts of all concentrationse0
- Interactor
- Portulaca oleracea
Portulaca oleraceae0weed - Outcome
- growth of the callusese0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The extracts of all concentrations inhibited the growth of the calluses of Digitaria ciliaris, Chenopodium album, Amaranthus lividus, Portulaca oleracea, and Commelina communis”
t0“Medicago sativa”
Claim · model-written summary
Alfalfa extracts inhibited Commelina communis callus growth at all concentrations.
- Taxon
- Medicago sativaMedicago sativat0
- Treatment
- extracts of all concentrationse0
- Interactor
- Commelina communis
Commelina communise0weed - Outcome
- growth of the callusese0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The extracts of all concentrations inhibited the growth of the calluses of Digitaria ciliaris, Chenopodium album, Amaranthus lividus, Portulaca oleracea, and Commelina communis”
t0“Medicago sativa”
Claim · model-written summary
Six allelopathic compounds were identified and quantified in alfalfa.
- Taxon
- alfalfaMedicago sativae0
- Outcome
- Six allelopathic compoundse0
- Value
- Sixe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Six allelopathic compounds in alfalfa were identified and quantified”
Claim · model-written summary
Salicylic acid and p-hydroxybenzoic acid predominated among phenolic compounds.
- Taxon
- Medicago sativaMedicago sativat0
- Outcome
- most predominant phenolic compounds were salicylic acid and p-hydroxybenzoic acide0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most predominant phenolic compounds were salicylic acid and p-hydroxybenzoic acid”
t0“Medicago sativa”
Claim · model-written summary
Tested phenolic compounds at three concentrations inhibited callus fresh weight.
- Taxon
- Medicago sativaMedicago sativat0
- Treatment
- Various concentrations (10−2, 10−3, and 10−5 M) of all the tested phenolic compoundse0
- Outcome
- callus fresh weighte0
- Direction
- inhibitory effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Various concentrations (10−2, 10−3, and 10−5 M) of all the tested phenolic compounds exerted inhibitory effects on callus fresh weight”
t0“Medicago sativa”
Claim · model-written summary
Rutin significantly inhibited alfalfa seed germination.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- Rutine0
- Outcome
- alfalfa seed germinatione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rutin, salicylic acid, scopoletin, and quercetin significantly inhibited alfalfa seed germination”
Claim · model-written summary
Salicylic acid significantly inhibited alfalfa seed germination.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- salicylic acide0
- Outcome
- alfalfa seed germinatione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rutin, salicylic acid, scopoletin, and quercetin significantly inhibited alfalfa seed germination”
Claim · model-written summary
Scopoletin significantly inhibited alfalfa seed germination.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- scopoletine0
- Outcome
- alfalfa seed germinatione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rutin, salicylic acid, scopoletin, and quercetin significantly inhibited alfalfa seed germination”
Claim · model-written summary
Quercetin significantly inhibited alfalfa seed germination.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- quercetine0
- Outcome
- alfalfa seed germinatione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rutin, salicylic acid, scopoletin, and quercetin significantly inhibited alfalfa seed germination”
Claim · model-written summary
Medicagenic acid saponins had the highest autotoxic effect and significantly reduced seed germination.
- Taxon
- Medicago sativaMedicago sativat0
- Treatment
- medicagenic acid saponinse0
- Outcome
- seed germination ratee0
- Direction
- lowerede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“medicagenic acid saponins exhibited the highest autotoxic effect and significantly lowered seed germination rate”
t0“Medicago sativa”
Claim · model-written summary
Phenolic compound and saponin composition significantly contributed to the measured variables in principal component analysis.
- Taxon
- Medicago sativaMedicago sativat0
- Compound
- phenolic compounds and saponin compositione0
- Outcome
- different variablese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Principal component analysis showed that the phenolic compounds and saponin composition significantly contributed to the different variables”
t0“Medicago sativa”
Claim · model-written summary
The authors suggest alfalfa phenolics and saponins as potential bioherbicides.
- Taxon
- Medicago sativaMedicago sativat0
- Outcome
- potential source of bioherbicidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these phytochemicals can be a potential source of bioherbicides”
t0“Medicago sativa”
The same questions in other papers
saponin · growth · Medicago sativa (alfalfa)Positive and negative results
1 in the opposite direction
- positive
salicylic acid · growth · Medicago sativa (alfalfa)Positive and negative results
1 paper in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →quercetin · growth · Medicago sativa (alfalfa)Results agree
1 paper in the same direction as this paper
- negative
botanical · Portulaca oleracea · Medicago sativa (alfalfa)Results agree
1 paper in the same direction as this paper
- 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.