Abstract
In the proceeding of screening new bioactive natural products, the ethyl acetate extract of the fermentation broth of Fusarium proliferatum ZS07, a fungus residing in the gut of long-horned grasshoppers (Tettigonia chinensis), was found possessing selective phytotoxic activity against the radicle growth of Amaranthus retroflexus L. Bioactivity-guided fractionation lead to the isolation of six fungal metabolites 1-6, including a new polyketide derivate O-methylated SMA93 (2) and five known compounds SMA93 (1), rhodolamprometrin (3), radicinin (4), dehydroallogibberic acid (5), and 3-methyl-6,8-dihydroxyisocoumarin (6). Their structures were identified on the basis of spectroscopic analysis and by comparison of the corresponding data to those reported in the literature previously. Phytotoxic effects of the four isolated compounds 1-4 on the radicle growth of A. retroflexus L. seeds were investigated under laboratory conditions, and compounds 2 and 4 showed good phytotoxic activity in the concentration of 100 μg/mL, with the inhibition rates of 83.0 and 65.2%, respectively. Furthermore, the antibacterial activity of compounds 1-5 were evaluated against selected bacteria. Compounds 1-3 were found to possess potent antibacterial activity against Bacillus subtilis (ATCC 6633), with the minimum inhibitory concentration (MIC) values of 3.13-12.50 μg/mL, while Escherichia coli (ATCC 8739) and Salmonella typhimurium [CMCC(B) 50115] were not susceptible. These results suggest that the new polyketide derivate 2 and known compounds 1, 3, and 4 have potential to be used as biocontrol agents in agriculture.
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Claims 5
Claim · model-written summary
The ethyl acetate extract of Fusarium proliferatum ZS07 broth showed selective phytotoxic activity against radicle growth of Amaranthus retroflexus.
- Taxon
- Amaranthus retroflexus
Amaranthus retroflexuse0 - Treatment
- ethyl acetate extract of the fermentation broth of Fusarium proliferatum ZS07e0
- Interactor
- Fusarium proliferatum ZS07Fusarium proliferatume0biocontrol_agent
- Outcome
- radicle growthe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the ethyl acetate extract of the fermentation broth of Fusarium proliferatum ZS07, a fungus residing in the gut of long-horned grasshoppers (Tettigonia chinensis), was found possessing selective phytotoxic activity against the radicle growth of Amaranthus retroflexus L”
Claim · model-written summary
Compound 2 (O-methylated SMA93) at 100 μg/mL inhibited radicle growth of Amaranthus retroflexus, with an inhibition rate of 83.0%.
- Taxon
- Amaranthus retroflexusAmaranthus retroflexuse0
- Treatment
- concentration of 100 μg/mLe1
- Compound
- O-methylated SMA93e2
- Outcome
- inhibition ratese1
- Direction
- inhibitione1
- Value
- 83.0e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the ethyl acetate extract of the fermentation broth of Fusarium proliferatum ZS07, a fungus residing in the gut of long-horned grasshoppers (Tettigonia chinensis), was found possessing selective phytotoxic activity against the radicle growth of Amaranthus retroflexus L”
e1“compounds 2 and 4 showed good phytotoxic activity in the concentration of 100 μg/mL, with the inhibition rates of 83.0 and 65.2%”
e2“a new polyketide derivate O-methylated SMA93 (2)”
Claim · model-written summary
Compound 4 (radicinin) at 100 μg/mL inhibited radicle growth of Amaranthus retroflexus, with an inhibition rate of 65.2%.
- Taxon
- Amaranthus retroflexusAmaranthus retroflexuse0
- Treatment
- concentration of 100 μg/mLe1
- Compound
- radicinine2
- Outcome
- inhibition ratese1
- Direction
- inhibitione1
- Value
- 65.2e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the ethyl acetate extract of the fermentation broth of Fusarium proliferatum ZS07, a fungus residing in the gut of long-horned grasshoppers (Tettigonia chinensis), was found possessing selective phytotoxic activity against the radicle growth of Amaranthus retroflexus L”
e1“compounds 2 and 4 showed good phytotoxic activity in the concentration of 100 μg/mL, with the inhibition rates of 83.0 and 65.2%”
e2“radicinin (4)”
Claim · model-written summary
Compounds 1-3 had potent antibacterial activity against Bacillus subtilis, with MIC values of 3.13-12.50 μg/mL.
- Taxon
- Amaranthus retroflexusAmaranthus retroflexuse0
- Treatment
- Compounds 1-3e1
- Interactor
- Bacillus subtilis (ATCC 6633)
Bacillus subtilise1other - Outcome
- minimum inhibitory concentration (MIC) valuese1
- Value
- 3.13-12.50 μg/mLe1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the ethyl acetate extract of the fermentation broth of Fusarium proliferatum ZS07, a fungus residing in the gut of long-horned grasshoppers (Tettigonia chinensis), was found possessing selective phytotoxic activity against the radicle growth of Amaranthus retroflexus L”
e1“Compounds 1-3 were found to possess potent antibacterial activity against Bacillus subtilis (ATCC 6633), with the minimum inhibitory concentration (MIC) values of 3.13-12.50 μg/mL”
Claim · model-written summary
Escherichia coli and Salmonella typhimurium were not susceptible to the tested compounds.
- Taxon
- Amaranthus retroflexusAmaranthus retroflexuse0
- Interactor
- Escherichia coli (ATCC 8739)
.jpg?width=60)
Escherichia colie1other - Outcome
- susceptiblee1
- Qualifier
- Salmonella typhimurium [CMCC(B) 50115]e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“the ethyl acetate extract of the fermentation broth of Fusarium proliferatum ZS07, a fungus residing in the gut of long-horned grasshoppers (Tettigonia chinensis), was found possessing selective phytotoxic activity against the radicle growth of Amaranthus retroflexus L”
e1“while Escherichia coli (ATCC 8739) and Salmonella typhimurium [CMCC(B) 50115] were not susceptible”
The same questions in other papers
ethyl acetate · growth · Amaranthus retroflexus (redroot amaranth)Results agree
1 paper in the same direction as this paper
- positive
botanical · growth · Amaranthus retroflexus (redroot amaranth)Positive and negative results
31 papers in the same direction as this paper · 7 in the opposite direction
- negative
- negative
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35 papers more in this group
See all 39 papers →processing · growth · Amaranthus retroflexus (redroot amaranth)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.