Abstract
LMM15, an actinomycete with broad spectrum antifungal activity, was isolated from a diseased tomato leaf using the baiting technique. A phylogenetic tree analysis based on similarity percentage of 16S rDNA sequences showed that the bacterium was 97.0% affiliated with the species Streptomyces pratensis . This strain was therefore coded as S. pratensis LMM15. The ferment filtrate of LMM15 had ability to inhibit mycelia growth of Botrytis cinerea and reduce lesion expansion of gray mold on detached leaves and fruits. In greenhouse experiments, both the fresh and dry weights of tomato seedlings were significantly increased with the increased concentrations of total chlorophyll. The incidence of tomato gray mold decreased by 46.35%; this was associated with the increase of proline content and malondialdehyde (MDA) and the changes in defense-related enzymes on tomato leaves when the strain was sprayed on the tomato leaves 24 h prior to inoculation with pathogens. This study showed that the strain S. pratensis LMM15 could be a potential agent for controlling tomato gray mold.
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Claims 7
Claim · model-written summary
The LMM15 isolate was assigned to Streptomyces pratensis with 97.0% sequence affiliation.
- Taxon
- Tomato
Solanum lycopersicumt0 - Interactor
- Streptomyces pratensisStreptomyces pratensise0biocontrol_agent
- Outcome
- affiliated with the species Streptomyces pratensise0
- Value
- 97.0%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the bacterium was 97.0% affiliated with the species Streptomyces pratensis”
t0“Tomato”
Claim · model-written summary
LMM15 filtrate inhibited Botrytis cinerea mycelial growth.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- ferment filtrate of LMM15e0
- Interactor
- Botrytis cinerea
Botrytis cinereae0pathogen - Outcome
- mycelia growth of Botrytis cinereae0
- Direction
- inhibite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ferment filtrate of LMM15 had ability to inhibit mycelia growth of Botrytis cinerea”
t0“Tomato”
Claim · model-written summary
LMM15 filtrate reduced gray mold lesion expansion on detached tomato leaves and fruits.
- Taxon
- TomatoSolanum lycopersicumt0
- Organ / stage
- detached leaves and fruitse0
- Treatment
- ferment filtrate of LMM15e0
- Interactor
- Botrytis cinereaBotrytis cinereae0pathogen
- Outcome
- lesion expansion of gray molde0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ferment filtrate of LMM15 had ability to inhibit mycelia growth of Botrytis cinerea and reduce lesion expansion of gray mold on detached leaves and fruits”
t0“Tomato”
Claim · model-written summary
Tomato seedling fresh and dry weights significantly increased in greenhouse experiments.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- seedlingse0
- Outcome
- fresh and dry weightse0
- Direction
- increasede0
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In greenhouse experiments, both the fresh and dry weights of tomato seedlings were significantly increased”
t0“Streptomyces pratensis LMM15”
Claim · model-written summary
Tomato chlorophyll concentration increased in greenhouse experiments.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- concentrations of total chlorophylle0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the increased concentrations of total chlorophyll”
t0“Tomato”
Claim · model-written summary
Spraying LMM15 before pathogen inoculation decreased tomato gray mold incidence by 46.35%.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- strain was sprayed on the tomato leaves 24 h prior to inoculation with pathogense1
- Interactor
- Botrytis cinereaBotrytis cinereat1pathogen
- Second interactor
- Streptomyces pratensis LMM15Streptomyces pratensist0biocontrol_agent
- Outcome
- incidence of tomato gray molde0
- Direction
- decreasede0
- Value
- 46.35%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The incidence of tomato gray mold decreased by 46.35%”
e1“when the strain was sprayed on the tomato leaves 24 h prior to inoculation with pathogens”
t0“Streptomyces pratensis LMM15”
t1“Botrytis cinerea”
Claim · model-written summary
LMM15 associated disease reduction with higher proline and malondialdehyde and altered leaf defense enzymes.
- Taxon
- TomatoSolanum lycopersicumt0
- Organ / stage
- tomato leavese0
- Outcome
- proline content and malondialdehyde (MDA)e0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this was associated with the increase of proline content and malondialdehyde (MDA) and the changes in defense-related enzymes on tomato leaves”
t0“Tomato”
The same questions in other papers
application · Botrytis cinerea · Solanum lycopersicum (tomato)Positive and negative results
20 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
19 papers more in this group
See all 23 papers →inoculation · Botrytis cinerea · Solanum lycopersicum (tomato)Positive and negative results
20 papers in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- no effect
21 papers more in this group
See all 25 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.