Abstract
Bacterialspeck caused by Pseudomonas syringae pv. tomato is an economically important disease of tomato. The aim of this study was to evaluate theeffectiveness of some medicinal andaromatic plant extracts on tomato seeds (cv. H-2274) and plants against P. s. pv. tomatoin vitro and in vivo. The extracts obtained from leaves, stems, seeds andfruits of Juglans regia, Lavandulaofficinalis, Eucalyptus globulus, Rosmarinus officinalis, Oleaeuropaea, Tilia tomentosa,Jatropha curcas, Humulus lupulus, Nigella sativa, Trigonellafoenum-graecum, Cuminum cyminum,Rhus coriaria, Daucus carota, Rosa canina and Moringa oleifera. Amongs the 15 different plants, three plant extractsinhibited the growth of the pathogen with inhibition zone diameter ranging from13 to 22 mm at 20% (w/v) in absolute methanol. Bacterial population on tomato seedsafter applications of the plant extracts at 5 doses was also determined.Rhus coriaria and Eucalyptusglobulus extracts at 20% concentration completely inhibited the P. s. pv. tomato on tomato seeds. Inspite of the highest antibacterial effects of sumac and eucalyptus to the pathogen, there was no a negative effect on tomatoseed germination. The effects of E. globules,R. coriaria and R. officinalis extractsagainst the pathogen were examined in greenhose conditions and, the highest efficiency was achieved by E. globulus(65.86%) on tomato. The peroxidase enzyme and total protein values haveshown an increase in the leaves following application of sumac, rosemary andeucalyptus extracts before the inoculation with P. s. pv. tomato. This study indicated that some plant extractsmay be used in prevention programs to combat the bacterial speck disease on tomato.
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Claims 7
Claim · model-written summary
Three extracts inhibited pathogen growth with zones of 13 to 22 mm.
- Taxon
- tomato
Solanum lycopersicume1 - Outcome
- growth of the pathogene0
- Direction
- inhibitede0
- Value
- 13 to 22 mme0
- Qualifier
- 20% (w/v) in absolute methanole0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three plant extractsinhibited the growth of the pathogen with inhibition zone diameter ranging from13 to 22 mm at 20% (w/v) in absolute methanol”
e1“disease of tomato”
Claim · model-written summary
Rhus coriaria extract completely inhibited the pathogen on tomato seeds.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- Rhus coriariae0
- Interactor
- P. s. pv. tomatoe0pathogen
- Outcome
- P. s. pv. tomato on tomato seedse0
- Direction
- inhibitede0
- Qualifier
- 20% concentratione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhus coriaria and Eucalyptusglobulus extracts at 20% concentration completely inhibited the P. s. pv. tomato on tomato seeds”
e1“disease of tomato”
Claim · model-written summary
Eucalyptusglobulus extract completely inhibited the pathogen on tomato seeds.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- Eucalyptusglobuluse0
- Interactor
- P. s. pv. tomatoe0pathogen
- Outcome
- P. s. pv. tomato on tomato seedse0
- Direction
- inhibitede0
- Qualifier
- 20% concentratione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhus coriaria and Eucalyptusglobulus extracts at 20% concentration completely inhibited the P. s. pv. tomato on tomato seeds”
e1“disease of tomato”
Claim · model-written summary
Sumac and eucalyptus extracts did not harm tomato seed germination.
- Taxon
- tomatoSolanum lycopersicume2
- Treatment
- sumac and eucalyptuse1
- Outcome
- tomatoseed germinatione0
- Direction
- no a negative effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no a negative effect on tomatoseed germination”
e1“highest antibacterial effects of sumac and eucalyptus to the pathogen”
e2“disease of tomato”
Claim · model-written summary
E. globulus had the highest greenhouse efficacy on tomato at 65.86%.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- E. globuluse0
- Outcome
- efficiencye0
- Direction
- higheste0
- Value
- 65.86%e0
- Setting
- greenhose conditionse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest efficiency was achieved by E. globulus(65.86%) on tomato”
e1“greenhose conditions”
Claim · model-written summary
Sumac, rosemary, and eucalyptus extracts increased leaf peroxidase and total protein before pathogen inoculation.
- Taxon
- tomatoSolanum lycopersicume1
- Organ / stage
- leavese0
- Treatment
- sumac, rosemary andeucalyptus extractse0
- Interactor
- P. s. pv. tomatoe0pathogen
- Outcome
- peroxidase enzyme and total protein valuese0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The peroxidase enzyme and total protein values haveshown an increase in the leaves following application of sumac, rosemary andeucalyptus extracts before the inoculation with P. s. pv. tomato”
e1“disease of tomato”
Claim · model-written summary
The authors suggest some extracts for bacterial speck prevention.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- prevention programs to combat the bacterial speck diseasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“some plant extractsmay be used in prevention programs to combat the bacterial speck disease on tomato”
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See all 28 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.