Abstract
An endophytic actinomycete strain St24 with acaricidal activity was isolated from the root-stem junction of tomato plants, with the taxonomic position of the strain and its control effect against gray mold disease investigated. The St24 was identified as Streptomyces vinaceus, and its broth's petroleum ether extracts could inhibit a variety of pathogens. The inhibitory effect of the extracts on Botrytis cinerea was the strongest, with the EC50 of inhibiting B. cinerea mycelia growth being 11.78 mg x L(-1). After treated with the extracts, the amount of the mycelia decreased, and the mycelia became crenate or broken, with the protoplast extravasated and the tuberculate malformation appeared. The B. cinerea culture treated with the extracts showed the maximum absorption at 260 nm, which was absent in the control, indicating that the St24 extracts increased the pathogens cell membrane permeability. Pot experiment showed that the extracts could protect tomato plants against B. cinerea. Foliar spraying the extracts at 100 mg x L(-1) had the best protective effect, with the controlling effect reached 94.3% after 24 h and 85.4% after 120 h.
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Claims 11
Claim · model-written summary
St24 was isolated from the tomato root-stem junction.
- Taxon
- tomato plants
Solanum lycopersicume0 - Organ / stage
- root-stem junctione0
- Interactor
- actinomycete strain St24e0symbiont
- Outcome
- was isolatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An endophytic actinomycete strain St24 with acaricidal activity was isolated from the root-stem junction of tomato plants”
Claim · model-written summary
The tomato endophyte St24 was identified as Streptomyces vinaceus.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Interactor
- Streptomyces vinaceusStreptomyces vinaceuse0symbiont
- Outcome
- identified as Streptomyces vinaceuse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The St24 was identified as Streptomyces vinaceus, and its broth's petroleum ether extracts could inhibit a variety of pathogens.”
t0“tomato plants”
Claim · model-written summary
St24 extracts inhibited a variety of pathogens.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- broth's petroleum ether extractse0
- Interactor
- pathogense0pathogen
- Outcome
- inhibit a variety of pathogense0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The St24 was identified as Streptomyces vinaceus, and its broth's petroleum ether extracts could inhibit a variety of pathogens.”
t0“tomato plants”
Claim · model-written summary
Extract inhibition of B. cinerea mycelial growth was strongest, with EC50 11.78 mg x L(-1).
- Taxon
- tomato plantsSolanum lycopersicumt0
- Interactor
- Botrytis cinerea
Botrytis cinereae0pathogen - Outcome
- B. cinerea mycelia growthe0
- Direction
- strongeste0
- Value
- 11.78 mg x L(-1)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inhibitory effect of the extracts on Botrytis cinerea was the strongest, with the EC50 of inhibiting B. cinerea mycelia growth being 11.78 mg x L(-1).”
t0“tomato plants”
Claim · model-written summary
Extract treatment decreased pathogen mycelia amount.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- extractse0
- Interactor
- Botrytis cinereaBotrytis cinereat1pathogen
- Outcome
- amount of the myceliae0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After treated with the extracts, the amount of the mycelia decreased, and the mycelia became crenate or broken, with the protoplast extravasated and the tuberculate malformation appeared.”
t0“tomato plants”
t1“The inhibitory effect of the extracts on Botrytis cinerea was the strongest”
Claim · model-written summary
Extract treatment caused crenate or broken mycelia, protoplast extravasation and tuberculate malformation.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- extractse0
- Outcome
- mycelia became crenate or broken, with the protoplast extravasated and the tuberculate malformation appearede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After treated with the extracts, the amount of the mycelia decreased, and the mycelia became crenate or broken, with the protoplast extravasated and the tuberculate malformation appeared.”
t0“tomato plants”
Claim · model-written summary
Treated B. cinerea culture showed maximum absorption at 260 nm, absent in control.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Interactor
- B. cinereaBotrytis cinereae0pathogen
- Outcome
- maximum absorptione0
- Value
- 260 nme0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The B. cinerea culture treated with the extracts showed the maximum absorption at 260 nm, which was absent in the control, indicating that the St24 extracts increased the pathogens cell membrane permeability.”
t0“tomato plants”
Claim · model-written summary
St24 extracts increased pathogen cell membrane permeability.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- St24 extractse0
- Interactor
- B. cinereaBotrytis cinereae0pathogen
- Outcome
- pathogens cell membrane permeabilitye0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The B. cinerea culture treated with the extracts showed the maximum absorption at 260 nm, which was absent in the control, indicating that the St24 extracts increased the pathogens cell membrane permeability.”
t0“tomato plants”
Claim · model-written summary
St24 extracts protected tomato plants against B. cinerea in pots.
- Taxon
- tomato plantsSolanum lycopersicume0
- Treatment
- extractse0
- Interactor
- B. cinereaBotrytis cinereae0pathogen
- Outcome
- protect tomato plants against B. cinereae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pot experiment showed that the extracts could protect tomato plants against B. cinerea.”
Claim · model-written summary
Foliar extract spray at 100 mg x L(-1) gave 94.3% control after 24 h.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- Foliar spraying the extracts at 100 mg x L(-1)e0
- Interactor
- B. cinereaBotrytis cinereat1pathogen
- Outcome
- controlling effecte0
- Direction
- beste0
- Value
- 94.3%e0
- Qualifier
- after 24 he0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar spraying the extracts at 100 mg x L(-1) had the best protective effect, with the controlling effect reached 94.3% after 24 h and 85.4% after 120 h.”
t0“tomato plants”
t1“Pot experiment showed that the extracts could protect tomato plants against B. cinerea”
Claim · model-written summary
Foliar extract spray at 100 mg x L(-1) gave 85.4% control after 120 h.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- Foliar spraying the extracts at 100 mg x L(-1)e0
- Interactor
- B. cinereaBotrytis cinereat1pathogen
- Outcome
- controlling effecte0
- Direction
- beste0
- Value
- 85.4%e0
- Qualifier
- after 120 he0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar spraying the extracts at 100 mg x L(-1) had the best protective effect, with the controlling effect reached 94.3% after 24 h and 85.4% after 120 h.”
t0“tomato plants”
t1“Pot experiment showed that the extracts could protect tomato plants against B. cinerea”
The same questions in other papers
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- no effect
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See all 40 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.