Abstract
Objective To isolate the pathogenic Ralstonia solanacearum from the infected Pogostemon cablin plants and to study the bacteria characteristics,so as to lay a foundation for the control of bacterial wilt.Methods Pathogenic strains of R.solanacearum were isolated from the infected P.cablin plants by being streaked on a tetrazolium chloride(TZC) medium.These strains were used for the classification based on oxidative utilization of three kinds of disaccharide(lactose,maltose,and cellobiose) and three kinds of hexy I alcohol(mannitol,dulcitol,and sorbitol).The pathogenicity was tested by the methods of cutting and soaking roots.Results Seven strains of pathogenic R.solanacearum were isolated from the infected P.cablin plants which contain four biotypes.Strains of HX5 and HX7 belong to biotype I,HX1 and HX6 belong to biotype II,HX2 and HX4 belong to biotype III,and HX3 belongs to biotype V.The result of pathogenicity test indicated that the most strains had strong pathogenicity.HX4 and HX5 have more serious virulence and can cause higher plant death rate.Conclusion Strains of R.solanacearum with different biotypes from the P.cablin plants have different pathogenicity.
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Claims 8
Claim · model-written summary
Seven pathogenic Ralstonia solanacearum strains, comprising four biotypes, were isolated from infected Pogostemon cablin plants.
- Taxon
- P.cablin
Pogostemon cabline0 - Interactor
- R.solanacearum
Ralstonia solanacearume0pathogen - Outcome
- four biotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seven strains of pathogenic R.solanacearum were isolated from the infected P.cablin plants which contain four biotypes”
Claim · model-written summary
Strains HX5 and HX7 belong to biotype I.
- Taxon
- Pogostemon cablinPogostemon cablint0
- Material
- HX5 and HX7e0
- Interactor
- Ralstonia solanacearumRalstonia solanacearumt0pathogen
- Outcome
- biotype Ie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Strains of HX5 and HX7 belong to biotype I”
t0“Ralstonia solanacearum from Pogostemon cablin”
Claim · model-written summary
Strains HX1 and HX6 belong to biotype II.
- Taxon
- Pogostemon cablinPogostemon cablint0
- Material
- HX1 and HX6e0
- Interactor
- Ralstonia solanacearumRalstonia solanacearumt0pathogen
- Outcome
- biotype IIe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HX1 and HX6 belong to biotype II”
t0“Ralstonia solanacearum from Pogostemon cablin”
Claim · model-written summary
Strains HX2 and HX4 belong to biotype III.
- Taxon
- Pogostemon cablinPogostemon cablint0
- Material
- HX2 and HX4e0
- Interactor
- Ralstonia solanacearumRalstonia solanacearumt0pathogen
- Outcome
- biotype IIIe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HX2 and HX4 belong to biotype III”
t0“Ralstonia solanacearum from Pogostemon cablin”
Claim · model-written summary
Strain HX3 belongs to biotype V.
- Taxon
- Pogostemon cablinPogostemon cablint0
- Material
- HX3e0
- Interactor
- Ralstonia solanacearumRalstonia solanacearumt0pathogen
- Outcome
- biotype Ve0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HX3 belongs to biotype V”
t0“Ralstonia solanacearum from Pogostemon cablin”
Claim · model-written summary
Most of the R. solanacearum strains showed strong pathogenicity on Pogostemon cablin in the pathogenicity test.
- Taxon
- Pogostemon cablinPogostemon cablint0
- Interactor
- Ralstonia solanacearumRalstonia solanacearumt0pathogen
- Outcome
- strong pathogenicitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most strains had strong pathogenicity”
t0“Ralstonia solanacearum from Pogostemon cablin”
Claim · model-written summary
Strains HX4 and HX5 had more serious virulence and caused a higher plant death rate.
- Taxon
- Pogostemon cablinPogostemon cablint0
- Material
- HX4 and HX5e0
- Interactor
- Ralstonia solanacearumRalstonia solanacearumt0pathogen
- Outcome
- plant death ratee0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HX4 and HX5 have more serious virulence and can cause higher plant death rate”
t0“Ralstonia solanacearum from Pogostemon cablin”
Claim · model-written summary
R. solanacearum strains of different biotypes from P. cablin plants differ in pathogenicity.
- Taxon
- P.cablinPogostemon cabline0
- Interactor
- R.solanacearumRalstonia solanacearume0pathogen
- Outcome
- pathogenicitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Strains of R.solanacearum with different biotypes from the P.cablin plants have different pathogenicity”