Abstract
The effects of mint ( Mentha haplocalyx ) allelochemicals were studied on three crops: wheat ( Triticum aestivum ),Chinese cabbage ( Brassica chinensis ) and radish ( Raphanus sativus ).The exudates of mint root showed obvious effects on seedling and root growth of the three crops: stimulating the growth of wheat,inhibiting that of Chinese cabbage,and stimulating the growth of seedling but inhibiting that of root of radish. The aqueous extract from aerial part of mint significantly inhibited both the germination of seed and growth of seedling and root of Chinese cabbage and radish. Radish was more sensitive to the allelopathic effect than Chinese cabbage,and the root more sensitive than seedling. The suppression gradually decreased,disappeared and even changed into stimulative effect when the concentration of extract declined. By successively extracting with chloroform and petroleum ether,the aqueous extract was separated into three parts (phases). The inhibitory effect of the remaining aqueous phase significantly increased. Since the concentration decreased and water potential increased in the remaining aqueous phase,it was revealed that the extremely strong inhibitory effect was caused by the allelochemicals rather than the low water potential. It was also revealed that the inhibitory effect of the aqueous phase was weakened by the components in the phases of chloroform and petroleum aether,which had the same inhibitory effect,i.e.,there was an antagonism present between the components in the separated phases. With the amberlyst,the aqueous phase was further separated into three components all of which significantly stimulated the seedling growth of Chinese cabbage. It was shown that the extremely strong inhibition of aqueous phase was caused by the mixture of the three components with strongly stimulating effect,excluding the decreasing effect of water potential. However,component II obviously inhabited the seed germination and root growth of Chinese cabbage and radish. Fig 2,Tab 4,Ref 26
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Claims 16
Claim · model-written summary
Mint root exudates stimulated wheat growth.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- exudates of mint roote0
- Interactor
- minte0other
- Outcome
- growth of wheate0
- Direction
- stimulatinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The exudates of mint root showed obvious effects on seedling and root growth of the three crops: stimulating the growth of wheat”
Claim · model-written summary
Mint root exudates inhibited Chinese cabbage growth.
- Taxon
- Chinese cabbage
Brassica rapa subsp. pekinensise0 - Treatment
- exudates of mint roote0
- Interactor
- minte0other
- Outcome
- growthe0
- Direction
- inhibitinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The exudates of mint root showed obvious effects on seedling and root growth of the three crops: stimulating the growth of wheat,inhibiting that of Chinese cabbage”
Claim · model-written summary
Mint root exudates stimulated radish seedling growth.
- Taxon
- radish
Raphanus sativuse0 - Outcome
- growth of seedlinge0
- Direction
- stimulatinge0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stimulating the growth of seedling but inhibiting that of root of radish.”
Claim · model-written summary
Mint root exudates inhibited radish root growth.
- Taxon
- radishRaphanus sativuse0
- Outcome
- root of radishe0
- Direction
- inhibitinge0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stimulating the growth of seedling but inhibiting that of root of radish.”
Claim · model-written summary
Mint aerial-part aqueous extract significantly inhibited Chinese cabbage germination, seedling growth and root growth.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensise0
- Treatment
- aqueous extract from aerial part of minte0
- Interactor
- minte0other
- Outcome
- germination of seed and growth of seedling and roote0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The aqueous extract from aerial part of mint significantly inhibited both the germination of seed and growth of seedling and root of Chinese cabbage and radish.”
Claim · model-written summary
Mint aerial-part aqueous extract significantly inhibited radish germination, seedling growth and root growth.
- Taxon
- radishRaphanus sativuse0
- Treatment
- aqueous extract from aerial part of minte0
- Interactor
- minte0other
- Outcome
- germination of seed and growth of seedling and roote0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The aqueous extract from aerial part of mint significantly inhibited both the germination of seed and growth of seedling and root of Chinese cabbage and radish.”
Claim · model-written summary
Radish was more sensitive to allelopathy than Chinese cabbage.
- Taxon
- RadishRaphanus sativuse0
- Outcome
- sensitive to the allelopathic effecte0
- Direction
- more sensitivee0
- Comparator
- Chinese cabbagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Radish was more sensitive to the allelopathic effect than Chinese cabbage”
Claim · model-written summary
Radish roots were more sensitive than seedlings.
- Taxon
- radishRaphanus sativust0
- Organ / stage
- roote0
- Outcome
- sensitivee0
- Direction
- more sensitivee0
- Comparator
- seedlinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the root more sensitive than seedling.”
t0“radish. The aqueous extract”
Claim · model-written summary
Inhibition decreased as extract concentration declined, then disappeared or became stimulation.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensist0
- Treatment
- extracte0
- Outcome
- suppressione0
- Direction
- decreasede0
- Qualifier
- when the concentration of extract declinede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The suppression gradually decreased,disappeared and even changed into stimulative effect when the concentration of extract declined.”
t0“Chinese cabbage,and the root”
Claim · model-written summary
The remaining aqueous phase had significantly greater inhibition.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensist0
- Treatment
- remaining aqueous phasee0
- Outcome
- inhibitory effecte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inhibitory effect of the remaining aqueous phase significantly increased.”
t0“Chinese cabbage,and the root”
Claim · model-written summary
The authors attributed strong inhibition to allelochemicals instead of low water potential.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensist0
- Compound
- allelochemicalse0
- Outcome
- extremely strong inhibitory effecte0
- Qualifier
- rather than the low water potentiale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the extremely strong inhibitory effect was caused by the allelochemicals rather than the low water potential.”
t0“Chinese cabbage,and the root”
Claim · model-written summary
Components in chloroform and petroleum ether phases weakened aqueous-phase inhibition.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensist0
- Outcome
- inhibitory effect of the aqueous phasee0
- Qualifier
- components in the phases of chloroform and petroleum aethere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the inhibitory effect of the aqueous phase was weakened by the components in the phases of chloroform and petroleum aether”
t0“Chinese cabbage,and the root”
Claim · model-written summary
All three separated components significantly stimulated Chinese cabbage seedling growth.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensise0
- Treatment
- three componentse0
- Outcome
- seedling growthe0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three components all of which significantly stimulated the seedling growth of Chinese cabbage.”
Claim · model-written summary
The authors attributed aqueous-phase inhibition to a mixture of three growth-stimulating components.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensist0
- Outcome
- extremely strong inhibition of aqueous phasee0
- Qualifier
- mixture of the three components with strongly stimulating effecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the extremely strong inhibition of aqueous phase was caused by the mixture of the three components with strongly stimulating effect”
t0“Chinese cabbage,and the root”
Claim · model-written summary
Component II inhibited Chinese cabbage seed germination and root growth.
- Taxon
- Chinese cabbageBrassica rapa subsp. pekinensise0
- Treatment
- component IIe0
- Outcome
- seed germination and root growthe0
- Direction
- inhabitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“component II obviously inhabited the seed germination and root growth of Chinese cabbage and radish.”
Claim · model-written summary
Component II inhibited radish seed germination and root growth.
- Taxon
- radishRaphanus sativuse0
- Treatment
- component IIe0
- Outcome
- seed germination and root growthe0
- Direction
- inhabitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“component II obviously inhabited the seed germination and root growth of Chinese cabbage and radish.”
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