Abstract
Sixty two chitinolytic strains were isolated from tobacco rhizosphere soil and seventeen demonstrated high chitinase activity through screening were obtained.Strain ZY-9-2 was unstable after vaccinating and inhibition several times.Strain ZY-9-1 and ZY-19-2 were therefore used in following study.Inhibition effect of the two strains to Phytophthroa parasitica Dast var.nicotianae and hence effects on tobacco black shank and consequently tobacco leaf quality were studied.Results indicated that the two stains had strong inhibition effect on parasitica Phytophthroa Dast var.nicotianae in plate.Good effect on controlling tobacco black shank was observed when fermentation fluid of strain ZY-9-1 and ZY-19-2 was applied in field with 56% and 50% controlling effect respectively.Both chemical analysis and the sensory test indicated that the fermentation fluid of strain ZY-9-1 and ZY-19-2 had no bad effect on tobacco leaf quality.
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Claims 6
Claim · model-written summary
Seventeen of 62 isolated strains had high chitinase activity.
- Taxon
- tobacco
Nicotiana tabacume0 - Outcome
- high chitinase activitye0
- Value
- seventeene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sixty two chitinolytic strains were isolated from tobacco rhizosphere soil and seventeen demonstrated high chitinase activity”
Claim · model-written summary
ZY-9-2 was unstable after repeated vaccination and inhibition.
- Taxon
- tobaccoNicotiana tabacumt0
- Material
- Strain ZY-9-2e0
- Outcome
- unstablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Strain ZY-9-2 was unstable after vaccinating and inhibition several times.”
t0“tobacco black shank”
Claim · model-written summary
ZY-9-1 and ZY-19-2 strongly inhibited the pathogen in plate assays.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- Strain ZY-9-1 and ZY-19-2e1
- Interactor
- parasitica Phytophthroa Dast var.nicotianaee0pathogen
- Outcome
- inhibition effect on parasitica Phytophthroa Dast var.nicotianaee0
- Direction
- inhibitione0
- Setting
- in platee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the two stains had strong inhibition effect on parasitica Phytophthroa Dast var.nicotianae in plate”
e1“Strain ZY-9-1 and ZY-19-2”
t0“tobacco black shank”
Claim · model-written summary
ZY-9-1 fermentation fluid controlled tobacco black shank by 56% in the field.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- fermentation fluid of strain ZY-9-1e0
- Outcome
- controlling tobacco black shanke0
- Direction
- controllinge0
- Value
- 56%e0
- Setting
- fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Good effect on controlling tobacco black shank was observed when fermentation fluid of strain ZY-9-1 and ZY-19-2 was applied in field with 56% and 50% controlling effect respectively.”
Claim · model-written summary
ZY-19-2 fermentation fluid controlled tobacco black shank by 50% in the field.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- fermentation fluid of strain ZY-9-1 and ZY-19-2e0
- Outcome
- controlling tobacco black shanke0
- Direction
- controllinge0
- Value
- 50%e0
- Setting
- fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Good effect on controlling tobacco black shank was observed when fermentation fluid of strain ZY-9-1 and ZY-19-2 was applied in field with 56% and 50% controlling effect respectively.”
Claim · model-written summary
Neither strain fermentation fluid adversely affected tobacco leaf quality.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- fermentation fluid of strain ZY-9-1 and ZY-19-2e0
- Outcome
- tobacco leaf qualitye0
- Direction
- no bad effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the fermentation fluid of strain ZY-9-1 and ZY-19-2 had no bad effect on tobacco leaf quality”
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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.