Abstract
Root system and root system soil of Eucalyptus grandis have been ultrasonically extracted with hexane,and identified with gas chromatograph-mass spectrometer.The analysis results are as follows: root system contains 29 organic compounds of 9 different categories,including alkanes,alkenes,arenes,alcohols,aldehydes,ketones,anthraquinones,aromatic esters and naphthalene heterocycles;root system soil contains 22 components of 8 different categories,including alkanes,alkenes,arenes,alcohols,aromatic esters,alkenoic esters,lactones and cyanides.This exeperiment result proves that allelopathic substances exist in root system and its soil,so their allelopathy is worth studying.The research also indicates 17 same compounds exist both in root system and its soil,which may hint the compounds of root system soil come from root exudates of eucalyptus grandis,but the functioning mechanism should be further studied.
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Claims 4
Claim · model-written summary
Root system of Eucalyptus grandis contains 29 organic compounds of 9 categories.
- Taxon
- Eucalyptus grandis
Eucalyptus grandise0 - Organ / stage
- root systeme1
- Outcome
- organic compoundse1
- Value
- 29 organic compoundse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root system and root system soil of Eucalyptus grandis have been ultrasonically extracted with hexane,and identified with gas chromatograph-mass spectrometer”
e1“root system contains 29 organic compounds of 9 different categories,including alkanes,alkenes,arenes,alcohols,aldehydes,ketones,anthraquinones,aromatic esters and naphthalene heterocycles”
Claim · model-written summary
Root-system soil of Eucalyptus grandis contains 22 components of 8 categories.
- Taxon
- Eucalyptus grandisEucalyptus grandise0
- Organ / stage
- root system soile2
- Outcome
- componentse2
- Value
- 22 componentse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root system and root system soil of Eucalyptus grandis have been ultrasonically extracted with hexane,and identified with gas chromatograph-mass spectrometer”
e2“root system soil contains 22 components of 8 different categories,including alkanes,alkenes,arenes,alcohols,aromatic esters,alkenoic esters,lactones and cyanides”
Claim · model-written summary
17 same compounds occur in both the root system and its soil of Eucalyptus grandis.
- Taxon
- Eucalyptus grandisEucalyptus grandise0
- Organ / stage
- root system and its soile3
- Outcome
- same compoundse3
- Value
- 17 same compoundse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root system and root system soil of Eucalyptus grandis have been ultrasonically extracted with hexane,and identified with gas chromatograph-mass spectrometer”
e3“The research also indicates 17 same compounds exist both in root system and its soil”
Claim · model-written summary
Allelopathic substances exist in the root system and root-system soil of Eucalyptus grandis.
- Taxon
- Eucalyptus grandisEucalyptus grandise0
- Organ / stage
- root system and its soile4
- Outcome
- allelopathic substancese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root system and root system soil of Eucalyptus grandis have been ultrasonically extracted with hexane,and identified with gas chromatograph-mass spectrometer”
e4“This exeperiment result proves that allelopathic substances exist in root system and its soil”