Abstract
The chemical profile and allelopathic action of the volatiles produced by Artemisia selengensis were studied. Artemisia selengensis was found to release volatile chemicals to the environment to influence other plants' growth, which suppressed the root length of Amaranthus retroflexus and Poa annua by 50.46 % and 87.83 % under 80 g/1.5 L treatment, respectively. GC/MS analysis led to the identification of 41 compounds (by hydrodistillation, HD) and 48 compounds (by headspace solid-phase microextraction, HS-SPME), with eucalyptol (15.45 % by HD and 28.09 % by HS-SPME) being detected as the most abundant constituent. The essential oil (EO) of A. selengensis completely inhibited the seed germination of A. retroflexus and P. annua at 1 mg/mL and 0.5 mg/mL, respectively. However, eucalyptol displayed much weaker activity compared with the EO, indicating that other less abundant constituents might contribute significantly to the EO's activity. Our study is the first report on the phytotoxicity of A. selengensis EO, suggesting that A. selengensis might release allelopathic volatile agents into the environment that negatively affect other plants' development so as to facilitate its own dominance; the potential value of utilizing A. selengensis EO as an environmentally friendly herbicide is also discussed.
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Claims 11
Claim · model-written summary
Artemisia volatiles suppressed Amaranthus retroflexus root length by 50.46% at the stated treatment.
- Taxon
- Amaranthus retroflexus
Amaranthus retroflexuse0 - Treatment
- 80 g/1.5 L treatmente0
- Outcome
- root lengthe0
- Direction
- suppressede0
- Value
- 50.46 %e0
Not reportedInteractorComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“suppressed the root length of Amaranthus retroflexus and Poa annua by 50.46 % and 87.83 % under 80 g/1.5 L treatment, respectively”
Claim · model-written summary
Artemisia volatiles suppressed Poa annua root length by 87.83% at the stated treatment.
Poa annuaNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“suppressed the root length of Amaranthus retroflexus and Poa annua by 50.46 % and 87.83 % under 80 g/1.5 L treatment, respectively”
Claim · model-written summary
Hydrodistillation identified 41 compounds in Artemisia volatiles.
Not reportedTaxon
Verbatim
e0“identification of 41 compounds (by hydrodistillation, HD)”
Claim · model-written summary
Headspace solid-phase microextraction identified 48 compounds in Artemisia volatiles.
Not reportedTaxon
Verbatim
e0“48 compounds (by headspace solid-phase microextraction, HS-SPME)”
Claim · model-written summary
Eucalyptol was the most abundant constituent, at 15.45% by hydrodistillation.
Not reportedTaxon
Verbatim
e0“eucalyptol (15.45 % by HD and 28.09 % by HS-SPME) being detected as the most abundant constituent”
Claim · model-written summary
Eucalyptol was the most abundant constituent, at 28.09% by HS-SPME.
Not reportedTaxon
Verbatim
e0“eucalyptol (15.45 % by HD and 28.09 % by HS-SPME) being detected as the most abundant constituent”
Claim · model-written summary
Artemisia essential oil completely inhibited Amaranthus retroflexus germination at 1 mg/mL.
- Taxon
- A. retroflexusAmaranthus retroflexuse0
- Treatment
- essential oil (EO) of A. selengensise0
- Outcome
- seed germinatione0
- Direction
- completely inhibitede0
- Value
- 1 mg/mLe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“essential oil (EO) of A. selengensis completely inhibited the seed germination of A. retroflexus and P. annua at 1 mg/mL and 0.5 mg/mL, respectively”
Claim · model-written summary
Artemisia essential oil completely inhibited Poa annua germination at 0.5 mg/mL.
- Treatment
- essential oil (EO) of A. selengensise0
- Outcome
- seed germinatione0
- Direction
- completely inhibitede0
- Value
- 0.5 mg/mLe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“essential oil (EO) of A. selengensis completely inhibited the seed germination of A. retroflexus and P. annua at 1 mg/mL and 0.5 mg/mL, respectively”
Claim · model-written summary
Eucalyptol had weaker phytotoxic activity than the complete essential oil.
Not reportedTaxon
Verbatim
e0“eucalyptol displayed much weaker activity compared with the EO”
Claim · model-written summary
The authors suggest that less abundant oil constituents may contribute substantially to phytotoxicity.
Not reportedTaxon
Verbatim
e0“other less abundant constituents might contribute significantly to the EO's activity”
Claim · model-written summary
The authors suggest that allelopathic volatiles may help Artemisia selengensis dominate other plants.
- Taxon
- A. selengensis
.jpg?width=60)
Artemisia selengensise0 - Compound
- allelopathic volatile agentse0
- Outcome
- its own dominancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“A. selengensis might release allelopathic volatile agents into the environment that negatively affect other plants' development so as to facilitate its own dominance”
The same questions in other papers
botanical · growth · Poa annuaPositive and negative results
4 in the opposite direction
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See all 5 papers →botanical · growth · Amaranthus retroflexus (redroot amaranth)Positive and negative results
6 papers in the same direction as this paper · 32 in the opposite direction
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See all 39 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.