Abstract
The secondary metabolites and their biobenefits of many species of the genus Nepeta have been assayed for determination of the chemical constituents. In this study, Nepeta nuda subsp. albiflora’essential oil was assayed and identified with gas chromatography/mass spectrometry (GC-MS). The oil has been principally dominated by 4aα,7α,7α,β-nepetalactone (74.27%) and 2(1H)-naphthalenone, octahydro-8a-methyl-trans-(10.09%). In the bioassay testings, direct exposure of the essential oil on five plant species (Triticum aestivum, Raphanus sativus, Lactuca sativa, Lepidium sativum and Portulaca oleracea) revealed significant herbicidal actions, inhibiting the germination, radicle and plumule elongation, fresh and dry weight. As a consequence, East Mediterranean Nepeta nuda subsp. albiflora with the essential oil bearing the crucial secondary metabolites could be suggested as a natural herbicide for further use in the agriculture.
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Claims 8
Claim · model-written summary
The essential oil was dominated by 4aα,7α,7α,β-nepetalactone at 74.27%.
Verbatim
e0“The oil has been principally dominated by 4aα,7α,7α,β-nepetalactone (74.27%)”
t0“Nepeta nudasubsp.albiflora”
Claim · model-written summary
The essential oil also contained 2(1H)-naphthalenone, octahydro-8a-methyl-trans- at 10.09%.
Verbatim
e0“2(1H)-naphthalenone, octahydro-8a-methyl-trans-(10.09%)”
t0“Nepeta nudasubsp.albiflora”
Claim · model-written summary
Direct oil exposure significantly inhibited germination, elongation, and weight of Triticum aestivum.
- Taxon
- Triticum aestivum
Triticum aestivume0 - Treatment
- direct exposure of the essential oile0
- Outcome
- germination, radicle and plumule elongation, fresh and dry weighte0
- Direction
- inhibitinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“direct exposure of the essential oil on five plant species (Triticum aestivum, Raphanus sativus, Lactuca sativa, Lepidium sativum and Portulaca oleracea) revealed significant herbicidal actions, inhibiting the germination, radicle and plumule elongation, fresh and dry weight”
Claim · model-written summary
Direct oil exposure significantly inhibited germination, elongation, and weight of Raphanus sativus.
- Taxon
- Raphanus sativus
Raphanus sativuse0 - Treatment
- direct exposure of the essential oile0
- Outcome
- germination, radicle and plumule elongation, fresh and dry weighte0
- Direction
- inhibitinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“direct exposure of the essential oil on five plant species (Triticum aestivum, Raphanus sativus, Lactuca sativa, Lepidium sativum and Portulaca oleracea) revealed significant herbicidal actions, inhibiting the germination, radicle and plumule elongation, fresh and dry weight”
Claim · model-written summary
Direct oil exposure significantly inhibited germination, elongation, and weight of Lactuca sativa.
- Taxon
- Lactuca sativa
Lactuca sativae0 - Treatment
- direct exposure of the essential oile0
- Outcome
- germination, radicle and plumule elongation, fresh and dry weighte0
- Direction
- inhibitinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“direct exposure of the essential oil on five plant species (Triticum aestivum, Raphanus sativus, Lactuca sativa, Lepidium sativum and Portulaca oleracea) revealed significant herbicidal actions, inhibiting the germination, radicle and plumule elongation, fresh and dry weight”
Claim · model-written summary
Direct oil exposure significantly inhibited germination, elongation, and weight of Lepidium sativum.
- Taxon
- Lepidium sativum
Lepidium sativume0 - Treatment
- direct exposure of the essential oile0
- Outcome
- germination, radicle and plumule elongation, fresh and dry weighte0
- Direction
- inhibitinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“direct exposure of the essential oil on five plant species (Triticum aestivum, Raphanus sativus, Lactuca sativa, Lepidium sativum and Portulaca oleracea) revealed significant herbicidal actions, inhibiting the germination, radicle and plumule elongation, fresh and dry weight”
Claim · model-written summary
Direct oil exposure significantly inhibited germination, elongation, and weight of Portulaca oleracea.
- Taxon
- Portulaca oleracea
Portulaca oleraceae0 - Treatment
- direct exposure of the essential oile0
- Outcome
- germination, radicle and plumule elongation, fresh and dry weighte0
- Direction
- inhibitinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“direct exposure of the essential oil on five plant species (Triticum aestivum, Raphanus sativus, Lactuca sativa, Lepidium sativum and Portulaca oleracea) revealed significant herbicidal actions, inhibiting the germination, radicle and plumule elongation, fresh and dry weight”
Claim · model-written summary
The authors suggest the essential oil as a natural herbicide for agriculture.
- Taxon
- Nepeta nuda subsp. albiflora
Nepeta nuda subsp. albiflorae0 - Outcome
- natural herbicide for further use in the agriculturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“East Mediterranean Nepeta nuda subsp. albiflora with the essential oil bearing the crucial secondary metabolites could be suggested as a natural herbicide for further use in the agriculture”
The same questions in other papers
botanical · growth · Portulaca oleraceaPositive and negative results
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- negative
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See all 152 papers →botanical · growth · Lactuca sativa (garden lettuce)Positive and negative results
113 papers in the same direction as this paper · 157 in the opposite direction
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See all 271 papers →botanical · growth · Triticum aestivum (wheat)Positive and negative results
205 papers in the same direction as this paper · 228 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
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See all 435 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.