Abstract
The effect of potato spindle tuber viroid infection on pollen viability, fruit-set, botanical seed set, seed weight, and seed germination in potatoes was determined. Pollen collected from the infected cultivar 'Monona' was less viable than pollen collected from healthy plants. Pollen collected from infected plants reduced seed set significantly but did not reduce fruit development or seed set in all cultivars tested. For some cultivars, infected maternal plants increased the frequency of fruit development and seed weight compared with healthy controls. True potato seed from viroid-infected 'Katahdin' × 'Superior' crosses germinated at a higher rate than did seed from comparable uninfected parents. Progeny from viroid-infected parents that exhibited potato spindle tuber viroidlike symptoms did not always test positive for potato spindle tuber viroid by bioassay or polyacrylamide gel electrophoresis tests. Efficiency of potato spindle tuber viroid detection by bioassay was highest for seedlings 2 weeks after imbibition. Potato spindle tuber viroid was detected in 100% of the progeny tested after true potato seed was stored at 4 °C for 12 years. Tests on selfed true potato seed from the viroid-infected cultivar 'Monona' demonstrated a transmission rate of 100% after subinoculation of initial bioassay plants.
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Claims 11
Claim · model-written summary
Infected Monona pollen was less viable than healthy plant pollen.
- Taxon
- cultivar 'Monona'e0
- Treatment
- infectede0
- Interactor
- potato spindle tuber viroid
Potato spindle tuber viroidt0pathogen - Outcome
- Pollene0
- Direction
- less viablee0
- Comparator
- healthy plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pollen collected from the infected cultivar 'Monona' was less viable than pollen collected from healthy plants”
t0“potato spindle tuber viroid”
Claim · model-written summary
Pollen from infected plants significantly reduced seed set.
- Taxon
- plantsViridiplantaee0
- Treatment
- infected plantse0
- Outcome
- seed sete0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Pollen collected from infected plants reduced seed set significantly but did not reduce fruit development or seed set in all cultivars tested”
Claim · model-written summary
Infected pollen did not reduce fruit development across all cultivars.
- Taxon
- plantsViridiplantaee0
- Treatment
- infected plantse0
- Outcome
- fruit developmente0
- Direction
- did not reducee0
Not reportedComparator
Verbatim
e0“Pollen collected from infected plants reduced seed set significantly but did not reduce fruit development or seed set in all cultivars tested”
Claim · model-written summary
Infected pollen did not reduce seed set in every cultivar.
- Taxon
- plantsViridiplantaee0
- Treatment
- infected plantse0
- Outcome
- seed sete0
- Direction
- did not reducee0
Not reportedComparator
Verbatim
e0“Pollen collected from infected plants reduced seed set significantly but did not reduce fruit development or seed set in all cultivars tested”
Claim · model-written summary
Infected maternal plants increased fruit development frequency in some cultivars.
Verbatim
e0“For some cultivars, infected maternal plants increased the frequency of fruit development and seed weight compared with healthy controls”
Claim · model-written summary
Infected maternal plants increased seed weight in some cultivars.
Verbatim
e0“For some cultivars, infected maternal plants increased the frequency of fruit development and seed weight compared with healthy controls”
Claim · model-written summary
Seed from infected Katahdin × Superior crosses germinated more often than seed from uninfected parents.
- Taxon
- potato
Solanum tuberosume0 - Material
- 'Katahdin' × 'Superior'e0
- Treatment
- viroid-infectede0
- Outcome
- germinatede0
- Direction
- higher ratee0
- Comparator
- comparable uninfected parentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“True potato seed from viroid-infected 'Katahdin' × 'Superior' crosses germinated at a higher rate than did seed from comparable uninfected parents”
Claim · model-written summary
Symptomatic progeny of infected parents were not always viroid positive by either assay.
Verbatim
e0“Progeny from viroid-infected parents that exhibited potato spindle tuber viroidlike symptoms did not always test positive for potato spindle tuber viroid by bioassay or polyacrylamide gel electrophoresis tests”
Claim · model-written summary
Bioassay detection efficiency was highest in seedlings two weeks after imbibition.
Verbatim
e0“Efficiency of potato spindle tuber viroid detection by bioassay was highest for seedlings 2 weeks after imbibition”
Claim · model-written summary
Potato spindle tuber viroid was detected in every tested progeny after true seed storage at 4 °C for 12 years.
- Taxon
- potatoSolanum tuberosume0
- Outcome
- potato spindle tuber viroide0
- Value
- 100%e0
- Qualifier
- 4 °C for 12 yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potato spindle tuber viroid was detected in 100% of the progeny tested after true potato seed was stored at 4 °C for 12 years”
Claim · model-written summary
Selfed seed of infected Monona had a 100% transmission rate after subinoculation.
- Taxon
- potatoSolanum tuberosume0
- Material
- cultivar 'Monona'e0
- Outcome
- transmission ratee0
- Value
- 100%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tests on selfed true potato seed from the viroid-infected cultivar 'Monona' demonstrated a transmission rate of 100% after subinoculation of initial bioassay plants”
The same questions in other papers
infection · yield · Viridiplantae (plants)Positive and negative results
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1 paper in the same direction as this paper · 4 in the opposite direction
- negative
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See all 6 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.