Abstract
Experimental studies were carried out under invitro conditions to examine the effect of Callistemon viminalis essential oil (EO) against the Echinochloa crus-galli L., Amaranthus viridis and Phalaris minor. EO composition was analysed by gas chromatography/mass spectrometry, revealing that EO was rich in monoterpenes and sesquiterpenes like eucalyptol, D-limonene, α-terpineol and caryophyllene oxide. EO applied in the concentration range of 0.5, 1, 2 and 4 μl against Amaranthus viridis, Echinochloa crus-galli L. and Phalaris minor drastically affected the germination of all test plants and inhibited root and shoot development. Not only seedling growth, even the chlorophyll content also reduced appreciably. This led to the demonstration that Callistemon viminalis EO was negatively affecting the photosynthetic process. Upregulation of antioxidant enzymes activities indicated that these enzymes were providing protection against Callistemon viminalis EO induced stress. Amaranthus viridis was reported to be more sensitive in comparison to Echinochloa crus-galli L. and Phalaris minor.
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Claims 8
Claim · model-written summary
The oil contained abundant monoterpenes and sesquiterpenes.
- Taxon
- Callistemon viminalis
Callistemon viminalist0 - Outcome
- rich in monoterpenes and sesquiterpenes like eucalyptol, D-limonene, α-terpineol and caryophyllene oxidee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EO was rich in monoterpenes and sesquiterpenes like eucalyptol, D-limonene, α-terpineol and caryophyllene oxide.”
t0“Callistemon viminalis”
Claim · model-written summary
Callistemon oil impaired germination and root and shoot development of Amaranthus viridis.
- Taxon
- Amaranthus viridis
Amaranthus viridise0 - Treatment
- EO applied in the concentration range of 0.5, 1, 2 and 4 μle0
- Outcome
- germination of all test plants and inhibited root and shoot developmente0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EO applied in the concentration range of 0.5, 1, 2 and 4 μl against Amaranthus viridis, Echinochloa crus-galli L. and Phalaris minor drastically affected the germination of all test plants and inhibited root and shoot development.”
Claim · model-written summary
Callistemon oil impaired germination and root and shoot development of Echinochloa crus-galli L..
- Taxon
- Echinochloa crus-galli L.
Echinochloa crus-gallie0 - Treatment
- EO applied in the concentration range of 0.5, 1, 2 and 4 μle0
- Outcome
- germination of all test plants and inhibited root and shoot developmente0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EO applied in the concentration range of 0.5, 1, 2 and 4 μl against Amaranthus viridis, Echinochloa crus-galli L. and Phalaris minor drastically affected the germination of all test plants and inhibited root and shoot development.”
Claim · model-written summary
Callistemon oil impaired germination and root and shoot development of Phalaris minor.
- Taxon
- Phalaris minor
.jpg?width=60)
Phalaris minore0 - Treatment
- EO applied in the concentration range of 0.5, 1, 2 and 4 μle0
- Outcome
- germination of all test plants and inhibited root and shoot developmente0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“EO applied in the concentration range of 0.5, 1, 2 and 4 μl against Amaranthus viridis, Echinochloa crus-galli L. and Phalaris minor drastically affected the germination of all test plants and inhibited root and shoot development.”
Claim · model-written summary
Seedling chlorophyll content declined after oil exposure.
- Taxon
- Amaranthus viridisAmaranthus viridist0
- Treatment
- Callistemon viminalis Essential Oilt0
- Outcome
- chlorophyll contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Not only seedling growth, even the chlorophyll content also reduced appreciably.”
t0“Callistemon viminalis Essential Oil against Echinochloa crus-galli L., Amaranthus viridis and Phalaris minor”
Claim · model-written summary
Oil negatively affected photosynthesis.
- Taxon
- Callistemon viminalisCallistemon viminalise0
- Treatment
- Callistemon viminalis EOe0
- Outcome
- photosynthetic processe0
- Qualifier
- negatively affectinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Callistemon viminalis EO was negatively affecting the photosynthetic process.”
Claim · model-written summary
Antioxidant enzyme activities were upregulated and interpreted as protection from oil stress.
- Taxon
- Amaranthus viridisAmaranthus viridist0
- Treatment
- Callistemon viminalis EO induced stresse0
- Outcome
- antioxidant enzymes activitiese0
- Direction
- Upregulatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Upregulation of antioxidant enzymes activities indicated that these enzymes were providing protection against Callistemon viminalis EO induced stress.”
t0“Amaranthus viridis”
Claim · model-written summary
Amaranthus viridis was more sensitive than the other two species.
- Taxon
- Amaranthus viridisAmaranthus viridise0
- Outcome
- sensitivee0
- Direction
- more sensitivee0
- Comparator
- Echinochloa crus-galli L. and Phalaris minore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Amaranthus viridis was reported to be more sensitive in comparison to Echinochloa crus-galli L. and Phalaris minor.”
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See all 59 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.