Abstract
(L.) Lam.), causing substantial yield losses worldwide. We conducted a systemic investigation on the spread, transmission, and pathogenesis of SPVD. Field experiments conducted over two years on ten sweet potato varieties showed that SPVD symptoms first occurred in newly developed top leaves, and spread from adjacent to distant plants in the field. The SPVD incidence was mainly (but not only) determined by the resistance of the varieties planted, and each variety exhibited a characteristic subset of SPVD symptoms. SPVD was not robustly transmitted through friction inoculation, but friction of the main stem might contribute to a higher SPVD incidence rate compared to friction of the leaf and branch tissues. Furthermore, our results suggested that SPVD might be latent in the storage root. Therefore, using virus-free storage roots and cuttings, purposeful monitoring for SPVD according to variety-specific symptoms, and swiftly removing infected plants (especially during the later growth stages) would help control and prevent SPVD during sweet potato production. Comparative transcriptome analysis revealed that numerous genes involved in photosynthesis, starch and sucrose metabolism, flavonoid biosynthesis, and carotenoid biosynthesis were downregulated following SPVD, whereas those involved in monolignol biosynthesis, zeatin biosynthesis, trehalose metabolism, and linoleic acid metabolism were upregulated. Notably, critical genes involved in pathogenesis and plant defense were significantly induced or suppressed following SPVD. These data provide insights into the molecular changes of sweet potato in response to SPVD and elucidate potential SPVD pathogenesis and defense mechanisms in sweet potato. Our study provides important information that can be used to tailor sustainable SPVD control strategies and guide the molecular breeding of SPVD-resistant sweet potato varieties.
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Claims 11
Claim · model-written summary
SPVD symptoms first appeared in new top leaves.
- Taxon
- Sweet Potato
_Flower.jpg?width=60)
Ipomoea batatast0 - Organ / stage
- newly developed top leavese0
- Interactor
- SPVDe0pathogen
- Outcome
- SPVD symptomse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“SPVD symptoms first occurred in newly developed top leaves”
t0“Spread and Transmission of Sweet Potato”
Claim · model-written summary
SPVD spread from adjacent to distant field plants.
- Taxon
- Sweet PotatoIpomoea batatast0
- Outcome
- spread from adjacent to distant plantse0
- Setting
- fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spread from adjacent to distant plants in the field.”
t0“Spread and Transmission of Sweet Potato”
t1“Sweet Potato Virus Disease (SPVD)”
Claim · model-written summary
SPVD incidence depended mainly, though not only, on varietal resistance.
- Taxon
- Sweet PotatoIpomoea batatast0
- Material
- varieties plantede0
- Interactor
- SPVDe0pathogen
- Outcome
- SPVD incidencee0
- Qualifier
- mainly (but not only)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The SPVD incidence was mainly (but not only) determined by the resistance of the varieties planted”
t0“Spread and Transmission of Sweet Potato”
Claim · model-written summary
Each variety showed a characteristic symptom subset.
- Taxon
- Sweet PotatoIpomoea batatast0
- Material
- each varietye0
- Interactor
- SPVDe0pathogen
- Outcome
- characteristic subset of SPVD symptomse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“each variety exhibited a characteristic subset of SPVD symptoms.”
t0“Spread and Transmission of Sweet Potato”
Claim · model-written summary
Friction inoculation did not transmit SPVD robustly.
- Taxon
- Sweet PotatoIpomoea batatast0
- Treatment
- friction inoculatione0
- Interactor
- SPVDe0pathogen
- Outcome
- SPVDe0
- Direction
- not robustly transmittede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SPVD was not robustly transmitted through friction inoculation”
t0“Spread and Transmission of Sweet Potato”
Claim · model-written summary
Main-stem friction might raise SPVD incidence compared with leaf and branch friction.
- Taxon
- Sweet PotatoIpomoea batatast0
- Treatment
- friction of the main steme0
- Interactor
- SPVDe0pathogen
- Outcome
- SPVD incidence ratee0
- Direction
- highere0
- Comparator
- friction of the leaf and branch tissuese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“friction of the main stem might contribute to a higher SPVD incidence rate compared to friction of the leaf and branch tissues.”
t0“Spread and Transmission of Sweet Potato”
Claim · model-written summary
SPVD might remain latent in storage roots.
- Taxon
- Sweet PotatoIpomoea batatast0
- Organ / stage
- storage roote0
- Interactor
- SPVDe0pathogen
- Outcome
- latent in the storage roote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SPVD might be latent in the storage root.”
t0“Spread and Transmission of Sweet Potato”
Claim · model-written summary
Photosynthesis, starch and sucrose metabolism, flavonoid and carotenoid biosynthesis genes were downregulated after SPVD.
- Taxon
- Sweet PotatoIpomoea batatast0
- Interactor
- SPVDe0pathogen
- Gene
- genes involved in photosynthesis, starch and sucrose metabolism, flavonoid biosynthesis, and carotenoid biosynthesise0
- Outcome
- genes involved in photosynthesis, starch and sucrose metabolism, flavonoid biosynthesis, and carotenoid biosynthesise0
- Direction
- downregulatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“numerous genes involved in photosynthesis, starch and sucrose metabolism, flavonoid biosynthesis, and carotenoid biosynthesis were downregulated following SPVD”
t0“Spread and Transmission of Sweet Potato”
Claim · model-written summary
Monolignol, zeatin, trehalose and linoleic-acid pathway genes were upregulated after SPVD.
- Taxon
- Sweet PotatoIpomoea batatast0
- Gene
- those involved in monolignol biosynthesis, zeatin biosynthesis, trehalose metabolism, and linoleic acid metabolisme0
- Outcome
- those involved in monolignol biosynthesis, zeatin biosynthesis, trehalose metabolism, and linoleic acid metabolisme0
- Direction
- upregulatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“those involved in monolignol biosynthesis, zeatin biosynthesis, trehalose metabolism, and linoleic acid metabolism were upregulated.”
t0“Spread and Transmission of Sweet Potato”
t1“Sweet Potato Virus Disease (SPVD)”
Claim · model-written summary
Defense and pathogenesis genes were significantly induced or suppressed after SPVD.
- Taxon
- Sweet PotatoIpomoea batatast0
- Interactor
- SPVDe0pathogen
- Gene
- critical genes involved in pathogenesis and plant defensee0
- Outcome
- critical genes involved in pathogenesis and plant defensee0
- Direction
- induced or suppressede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“critical genes involved in pathogenesis and plant defense were significantly induced or suppressed following SPVD.”
t0“Spread and Transmission of Sweet Potato”
Claim · model-written summary
Authors advised virus-free roots and cuttings, symptom monitoring and rapid removal of infected plants.
- Taxon
- sweet potatoIpomoea batatase0
- Interactor
- SPVDe0pathogen
- Outcome
- using virus-free storage roots and cuttings, purposeful monitoring for SPVD according to variety-specific symptoms, and swiftly removing infected plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using virus-free storage roots and cuttings, purposeful monitoring for SPVD according to variety-specific symptoms, and swiftly removing infected plants (especially during the later growth stages) would help control and prevent SPVD during sweet potato production.”
The same questions in other papers
inoculation · organism · Ipomoea batatas (sweet potato)Positive and negative results
2 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
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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.