Abstract
The Effect of Selected Plant Materials and Extracts on the Development of Bacterial Diseases on Onion The effects of Brassicaceae and Solanaceae plant residues and water extracts from these residues on the growth of onion ( Allium cepa L.) pathogenic bacteria Pectobacterium carotovorum subsp. carotovorum, Burkholderia cepacia and Burkholderia gladioli pv. alliicola were examined. The influence of these materials on the development of bacterial diseases on onion bulbs was also investigated. The toxic effect depended on the kind and amount of the agent used and also on the species of examined bacteria. The water extract from Brassica napus cv. Kana and water extract from Lycopersicon esculentum cv. Remiz decreased a density of three examined bacteria in nutrient broth medium. Also milled seeds of Brassica juncea cv. Małopolska expressed an inhibitory effect towards B. cepacia and B. gladioli pv. alliicola. However, milled seeds of B. napus cv. Kana used as an addition to liquid medium did not decrease the density of these bacteria. In the experiment on onion bulbs the most promising results were obtained for milled seeds of B. juncea cv. Małopolska. This material used both as a source of volatile compounds and also in direct contact with the inoculated place on the onion bulb, inhibited diseases development caused by all three examined bacteria. B. juncea contains very high concentration of 2-propenyl ITC and probably this compound caused decrease in density of bacteria and the reduction of disease development. Purified, commercially obtained 2-propenyl ITC proved a very strong antibacterial activity and also inhibited disease development on onion. The commercial products Funguran Easy 50 WP and Biosept 33SL were also used but they showed very weak activity in protection of onion against the tested bacteria.
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Claims 11
Claim · model-written summary
Water extract of Brassica napus Kana reduced three bacterial densities in broth.
- Taxon
- onion
Allium cepat0 - Treatment
- water extract from Brassica napus cv. Kanae0
- Outcome
- density of three examined bacteriae0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The water extract from Brassica napus cv. Kana and water extract from Lycopersicon esculentum cv. Remiz decreased a density of three examined bacteria in nutrient broth medium.”
t0“onion”
Claim · model-written summary
Water extract of Lycopersicon esculentum Remiz reduced three bacterial densities in broth.
- Taxon
- onionAllium cepat0
- Treatment
- water extract from Lycopersicon esculentum cv. Remize0
- Outcome
- density of three examined bacteriae0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The water extract from Brassica napus cv. Kana and water extract from Lycopersicon esculentum cv. Remiz decreased a density of three examined bacteria in nutrient broth medium.”
t0“onion”
Claim · model-written summary
Milled Brassica juncea seeds inhibited B. cepacia in broth.
- Taxon
- onionAllium cepat0
- Treatment
- milled seeds of Brassica juncea cv. Małopolskae0
- Interactor
- B. cepacia
Burkholderia cepaciae0pathogen - Outcome
- inhibitory effect towards B. cepaciae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“milled seeds of Brassica juncea cv. Małopolska expressed an inhibitory effect towards B. cepacia and B. gladioli pv. alliicola”
t0“onion”
Claim · model-written summary
Milled Brassica juncea seeds inhibited B. gladioli in broth.
- Taxon
- onionAllium cepat0
- Treatment
- milled seeds of Brassica juncea cv. Małopolskae0
- Interactor
- B. gladioli pv. alliicolaBurkholderia gladioli pv. alliicolae0pathogen
- Outcome
- inhibitory effecte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“milled seeds of Brassica juncea cv. Małopolska expressed an inhibitory effect towards B. cepacia and B. gladioli pv. alliicola”
t0“onion”
Claim · model-written summary
Milled Brassica napus seeds did not decrease densities of these bacteria in broth.
- Taxon
- onionAllium cepat0
- Treatment
- milled seeds of B. napus cv. Kanae0
- Outcome
- density of these bacteriae0
- Direction
- did not decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“milled seeds of B. napus cv. Kana used as an addition to liquid medium did not decrease the density of these bacteria”
t0“onion”
Claim · model-written summary
Milled Brassica juncea seeds applied as volatiles inhibited disease caused by all three bacteria on onion bulbs.
- Taxon
- onionAllium cepae0
- Treatment
- source of volatile compoundse0
- Outcome
- diseases development caused by all three examined bacteriae0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This material used both as a source of volatile compounds and also in direct contact with the inoculated place on the onion bulb, inhibited diseases development caused by all three examined bacteria.”
t0“milled seeds of B. juncea cv. Małopolska”
Claim · model-written summary
Milled Brassica juncea seeds in direct contact inhibited disease caused by all three bacteria on onion bulbs.
- Taxon
- onionAllium cepae0
- Treatment
- direct contact with the inoculated place on the onion bulbe0
- Outcome
- diseases development caused by all three examined bacteriae0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This material used both as a source of volatile compounds and also in direct contact with the inoculated place on the onion bulb, inhibited diseases development caused by all three examined bacteria.”
Claim · model-written summary
The authors attribute bacterial density and disease reduction to 2-propenyl ITC in B. juncea.
- Taxon
- onionAllium cepat0
- Compound
- 2-propenyl ITCe0
- Outcome
- decrease in density of bacteria and the reduction of disease developmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. juncea contains very high concentration of 2-propenyl ITC and probably this compound caused decrease in density of bacteria and the reduction of disease development”
t0“onion”
Claim · model-written summary
Purified 2-propenyl ITC showed strong antibacterial activity and inhibited onion disease.
- Taxon
- onionAllium cepae0
- Treatment
- 2-propenyl ITCe0
- Outcome
- antibacterial activity and also inhibited disease developmente0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Purified, commercially obtained 2-propenyl ITC proved a very strong antibacterial activity and also inhibited disease development on onion.”
Claim · model-written summary
Funguran Easy 50 WP showed weak protection of onion against tested bacteria.
- Taxon
- onionAllium cepae0
- Treatment
- Funguran Easy 50 WPe0
- Outcome
- activity in protection of onion against the tested bacteriae0
- Direction
- very weake0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The commercial products Funguran Easy 50 WP and Biosept 33SL were also used but they showed very weak activity in protection of onion against the tested bacteria.”
Claim · model-written summary
Biosept 33SL showed weak protection of onion against tested bacteria.
- Taxon
- onionAllium cepae0
- Treatment
- Biosept 33SLe0
- Outcome
- activity in protection of onion against the tested bacteriae0
- Direction
- very weake0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The commercial products Funguran Easy 50 WP and Biosept 33SL were also used but they showed very weak activity in protection of onion against the tested bacteria.”
The same questions in other papers
inoculation · growth · Allium cepa (onion)Results differ
88 papers in the same direction as this paper · 10 in the opposite direction
- no effect
- negative
- negative
95 papers more in this group
See all 99 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.