Abstract
Essential oils constitute an important group of plant products and include a mixture of volatile low-molecular-weight terpenes. The present study aimed to determine the phyto- and cytotoxicity of essential oils from leaves of Schinus molle and Schinus terebinthifolius on lettuce and onion. These essential oils affected germination, initial growth, and mitotic and metaphasic indexes of the target species. Compared to negative controls, essential oils of S. molle and S. terebinthifolius reduced the mitotic index of onion by 21.05% and 82.03%, respectively. Similar results were observed for lettuce. The volatiles also induced chromosomal abnormalities such as spindle disturbance at late prophase, sticky metaphase, c-mitosis, micronucleus, and nuclear buds. Although the essential oils of both species shared the same major compound (α-pinene), more pronounced effects were observed in S. terebinthifolius treatments. The results suggest that major and minor compounds of these essential oils act in synergy, causing the inhibitory effects observed on onion and lettuce.
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Claims 8
Claim · model-written summary
Schinus oils affected germination and initial growth of lettuce and onion.
- Taxon
- lettuce and onion
Lactuca sativa
Allium cepae1 - Treatment
- essential oils from leaves of Schinus molle and Schinus terebinthifoliuse1
- Outcome
- germination, initial growthe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These essential oils affected germination, initial growth, and mitotic and metaphasic indexes of the target species.”
e1“essential oils from leaves of Schinus molle and Schinus terebinthifolius on lettuce and onion”
Claim · model-written summary
S. molle oil reduced onion mitotic index by 21.05% versus negative controls.
- Taxon
- onionAllium cepae0
- Treatment
- essential oils of S. mollee0
- Outcome
- mitotic index of onione0
- Direction
- reducede0
- Value
- 21.05%e0
- Comparator
- negative controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to negative controls, essential oils of S. molle and S. terebinthifolius reduced the mitotic index of onion by 21.05% and 82.03%, respectively.”
Claim · model-written summary
S. terebinthifolius oil reduced onion mitotic index by 82.03% versus negative controls.
- Taxon
- onionAllium cepae0
- Treatment
- essential oils of S. molle and S. terebinthifoliuse0
- Outcome
- mitotic index of onione0
- Direction
- reducede0
- Value
- 82.03%e0
- Comparator
- negative controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to negative controls, essential oils of S. molle and S. terebinthifolius reduced the mitotic index of onion by 21.05% and 82.03%, respectively.”
Claim · model-written summary
Lettuce showed similar mitotic-index reductions.
- Taxon
- lettuceLactuca sativae0
- Treatment
- essential oils of S. molle and S. terebinthifoliuse1
- Outcome
- Similar resultse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Similar results were observed for lettuce.”
e1“essential oils of S. molle and S. terebinthifolius reduced the mitotic index of onion”
Claim · model-written summary
The oils induced several chromosomal abnormalities in target plants.
- Taxon
- lettuce and onionLactuca sativaAllium cepae1
- Treatment
- volatilese0
- Outcome
- chromosomal abnormalities such as spindle disturbance at late prophase, sticky metaphase, c-mitosis, micronucleus, and nuclear budse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The volatiles also induced chromosomal abnormalities such as spindle disturbance at late prophase, sticky metaphase, c-mitosis, micronucleus, and nuclear buds.”
e1“on lettuce and onion”
Claim · model-written summary
Both oils shared α-pinene as their major compound.
Verbatim
e0“the essential oils of both species shared the same major compound (α-pinene)”
t0“Schinus terebinthifolius and S. molle”
Claim · model-written summary
S. terebinthifolius treatments had more pronounced effects.
- Taxon
- lettuce and onionLactuca sativaAllium cepae1
- Treatment
- S. terebinthifolius treatmentse0
- Outcome
- more pronounced effectse0
- Direction
- more pronouncede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“more pronounced effects were observed in S. terebinthifolius treatments”
e1“on lettuce and onion”
Claim · model-written summary
The authors suggest major and minor oil compounds act synergistically to inhibit onion and lettuce.
- Taxon
- onion and lettuceLactuca sativaAllium cepae0
- Outcome
- inhibitory effects observed on onion and lettucee0
- Qualifier
- major and minor compounds of these essential oils act in synergye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“major and minor compounds of these essential oils act in synergy, causing the inhibitory effects observed on onion and lettuce”
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See all 271 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.