Abstract
When beet seedlings exposed as bait plants in infested soil were placed in a nutrient solution, they released Polymyxa betae zoospores, infected with beet necrotic yellow vein furovirus. The roots produced the first zoospores 5 days after the start of soil baiting. When seedlings were inoculated with zoospore suspensions, infection occurred within 5 min and reached a maximum in 30 min. The suspensions remained infectious for at least 2 h after removal of the bait plants from which the zoospores were released. So many spores were released into the suspension that disease transmission could be obtained within half an hour from an infected plant to a healthy plant, placed together into fresh medium. Suspensions could be diluted 1/16 with nutrient solution without any loss of infectivity, whereas 1/4 dilution with tap water resulted in a complete loss of infectivity.
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Claims 7
Claim · model-written summary
Bait beet seedlings released virus-infected Polymyxa betae zoospores.
- Taxon
- beet
Beta vulgarise0 - Interactor
- Polymyxa betaePolymyxa betaee0pathogen
- Second interactor
- beet necrotic yellow vein furoviruse0pathogen
- Outcome
- Polymyxa betae zoospores, infected with beet necrotic yellow vein furoviruse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“beet seedlings exposed as bait plants in infested soil were placed in a nutrient solution, they released Polymyxa betae zoospores, infected with beet necrotic yellow vein furovirus”
Claim · model-written summary
Beet roots first produced zoospores five days after soil baiting began.
- Taxon
- beetBeta vulgarist0
- Organ / stage
- rootse0
- Outcome
- first zoosporese0
- Value
- 5 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“beet”
e0“The roots produced the first zoospores 5 days after the start of soil baiting”
Claim · model-written summary
Zoospore inoculation infected seedlings within 5 min and reached maximum infection in 30 min.
- Taxon
- beetBeta vulgarist0
- Treatment
- inoculated with zoospore suspensionse0
- Outcome
- infectione0
- Direction
- reached a maximume0
- Value
- 30 mine0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“beet”
e0“When seedlings were inoculated with zoospore suspensions, infection occurred within 5 min and reached a maximum in 30 min”
Claim · model-written summary
Zoospore suspensions remained infectious for at least two hours after bait plant removal.
- Taxon
- beetBeta vulgarist0
- Outcome
- suspensions remained infectiouse0
- Value
- at least 2 he0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“beet”
e0“The suspensions remained infectious for at least 2 h after removal of the bait plants”
Claim · model-written summary
Infected plants transmitted disease to healthy plants within half an hour in fresh medium.
- Taxon
- beetBeta vulgarist0
- Outcome
- disease transmissione0
- Value
- within half an houre0
- Qualifier
- placed together into fresh mediume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“beet”
e0“disease transmission could be obtained within half an hour from an infected plant to a healthy plant, placed together into fresh medium”
Claim · model-written summary
Dilution to 1/16 with nutrient solution did not reduce infectivity.
- Taxon
- beetBeta vulgarist0
- Treatment
- diluted 1/16 with nutrient solutione0
- Outcome
- infectivitye0
- Direction
- without any losse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“beet”
e0“Suspensions could be diluted 1/16 with nutrient solution without any loss of infectivity”
Claim · model-written summary
Dilution to 1/4 with tap water eliminated infectivity.
- Taxon
- beetBeta vulgarist0
- Treatment
- 1/4 dilution with tap watere0
- Outcome
- infectivitye0
- Direction
- complete losse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“beet”
e0“1/4 dilution with tap water resulted in a complete loss of infectivity”
The same questions in other papers
fertilization · disease · Beta vulgaris (beet)Positive and negative results
2 papers in the same direction as this paper · 8 in the opposite direction
- positive
- positive
- positive
7 papers more in this group
See all 11 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.