Abstract
THIS STUDY was to specify the potential antiviral action of Serratia marcescens subsp. marcescens and its extracellular products against watermelon mosaic virus (WMV). The highest level of protection observed occurred in experiments, where bacteria were mixed with the virus in vitro before inoculation, resulting in gave 100% viral inhibition. S. marcescens significantly improved (p< 0.05) several growth parameters in all experiments compared to viral control. The highest level of virus inhibition obtained when a mixture of all compounds extracted and purified from S. marcescens subsp. marcescens was applied to cucumber plants reducing infection by 95% . The results of RT-PCR showed that in vitro liquid bacterial culture treatment and applied 24 hr after virus inoculation treatment highly reduced the accumulation of WMV in treated plant leaves . The usage of S. marcescens in vitro and in vivo led to increasing in total protein, polyphenoloxidase, and phenolic compounds compared to viral-infected and healthy controls, while reducing glutathione oxidase. S. marcescens and its metabolic products found in culture filtrates show promise as an effective biocontrol agent for WMV infection in plants and appear to promote plant growth even in the absence of virus
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Claims 8
Claim · model-written summary
Mixing Serratia with virus before inoculation gave 100% viral inhibition.
- Taxon
- cucumber plants
Cucumis sativuse1
- Treatment
- bacteria were mixed with the virus in vitro before inoculatione0
- Interactor
- Watermelon Mosaic Virus
Watermelon mosaic virust0pathogen - Outcome
- viral inhibitione0
- Value
- 100%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_-_Hinrichs-Berger.jpg?width=500)
Verbatim
t0“Watermelon Mosaic Virus (WMV)”
e0“bacteria were mixed with the virus in vitro before inoculation, resulting in gave 100% viral inhibition”
e1“cucumber plants”
Claim · model-written summary
Serratia significantly improved several growth parameters relative to viral controls.
- Taxon
- cucumber plants
Cucumis sativuse1
- Treatment
- S. marcescense0
- Interactor
- S. marcescens
Serratia marcescense0biocontrol_agent - Outcome
- several growth parameterse0
- Direction
- improvede0
- Comparator
- viral controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Serratia marcescens subsp. marcescens”
e1“cucumber plants”
e0“S. marcescens significantly improved (p< 0.05) several growth parameters in all experiments compared to viral control”
Claim · model-written summary
A mixture of purified Serratia compounds reduced infection in cucumber by 95%.
- Taxon
- cucumber plants
Cucumis sativuse0
- Treatment
- a mixture of all compounds extracted and purified from S. marcescens subsp. marcescense0
- Interactor
- Watermelon Mosaic Virus
Watermelon mosaic virust0pathogen - Second interactor
- S. marcescens subsp. marcescens
Serratia marcescense0biocontrol_agent - Outcome
- infectione0
- Direction
- reducinge0
- Value
- 95%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_-_Hinrichs-Berger.jpg?width=500)

Verbatim
t0“Watermelon Mosaic Virus (WMV)”
e0“a mixture of all compounds extracted and purified from S. marcescens subsp. marcescens was applied to cucumber plants reducing infection by 95%”
e1“cucumber plants”
Claim · model-written summary
Liquid bacterial culture treatment reduced WMV accumulation in leaves.
- Taxon
- cucumber plants
Cucumis sativuse1
- Treatment
- in vitro liquid bacterial culture treatmente0
- Interactor
- WMVe0pathogen
- Outcome
- accumulation of WMV in treated plant leavese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“cucumber plants”
e0“in vitro liquid bacterial culture treatment and applied 24 hr after virus inoculation treatment highly reduced the accumulation of WMV in treated plant leaves”
Claim · model-written summary
Treatment 24 hours after virus inoculation reduced WMV accumulation in leaves.
- Taxon
- cucumber plants
Cucumis sativuse1
- Treatment
- applied 24 hr after virus inoculation treatmente0
- Interactor
- WMVe0pathogen
- Outcome
- accumulation of WMV in treated plant leavese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“cucumber plants”
e0“in vitro liquid bacterial culture treatment and applied 24 hr after virus inoculation treatment highly reduced the accumulation of WMV in treated plant leaves”
Claim · model-written summary
Serratia use increased total protein, polyphenoloxidase and phenolic compounds versus infected and healthy controls.
- Taxon
- cucumber plants
Cucumis sativuse1
- Treatment
- S. marcescens in vitro and in vivoe0
- Interactor
- S. marcescens
Serratia marcescense0biocontrol_agent - Outcome
- total protein, polyphenoloxidase, and phenolic compoundse0
- Direction
- increasinge0
- Comparator
- viral-infected and healthy controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“cucumber plants”
e0“S. marcescens in vitro and in vivo led to increasing in total protein, polyphenoloxidase, and phenolic compounds compared to viral-infected and healthy controls, while reducing glutathione oxidase”
Claim · model-written summary
Serratia use reduced glutathione oxidase compared with infected and healthy controls.
- Taxon
- cucumber plants
Cucumis sativuse1
- Treatment
- S. marcescens in vitro and in vivoe0
- Interactor
- S. marcescens
Serratia marcescense0biocontrol_agent - Outcome
- glutathione oxidasee0
- Direction
- reducinge0
- Comparator
- viral-infected and healthy controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“cucumber plants”
e0“S. marcescens in vitro and in vivo led to increasing in total protein, polyphenoloxidase, and phenolic compounds compared to viral-infected and healthy controls, while reducing glutathione oxidase”
Claim · model-written summary
The authors consider Serratia and its metabolites promising for WMV control and plant growth promotion.
- Taxon
- cucumber plants
Cucumis sativuse1
- Interactor
- WMVe0pathogen
- Second interactor
- S. marcescens
Serratia marcescense0biocontrol_agent - Outcome
- effective biocontrol agent for WMV infection in plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“cucumber plants”
e0“S. marcescens and its metabolic products found in culture filtrates show promise as an effective biocontrol agent for WMV infection in plants and appear to promote plant growth even in the absence of virus”
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inoculation · disease · Cucumis sativus (cucumber)Positive and negative results
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See all 83 papers →in vitro · disease · Cucumis sativus (cucumber)Results agree
6 papers in the same direction as this paper
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See all 7 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.