Abstract
Atmospheric CO2 concentration has been proved to be increased in the future.In this study,responses of tobacco plants to stress from the tobacco aphid,Myzus persicae(Sulzer)or PVYN(potato virus Y),or stresses from both aphid and PVYN combined were investigated in OTC(open-top chambers)under ambient and elevated CO2 concentrations.We experimentally examined aboveground biomass and foliar chlorophyll,nitrogen,non-structural carbohydrates,soluble protein,total amino acid and nicotine content in tobacco plants under elevated CO2.The increase of tobacco biomass was alleviated after infected by PVYN and aphid under elevated CO2,while no significant difference of tobacco biomass was found under ambient CO2.Significant higher nitrogen content after infected with virus or by aphid + virus and soluble protein content of tobacco after infested by aphid or by aphid+virus occurred in elevated CO2.Moreover,significant higher nicotine content was observed in the tobacco with PVYN-infection in comparison with tobacco with aphids under two CO2 treatments.Our results indicated that both PVYN and tobacco aphid are major factors influencing tobacco yield and constitution significantly.The significant lower biomass of tobacco after infested by PVYN + aphid under elevated CO2 suggested that inhibition of PVYN and aphid together on tobacco growth would be stronger in future elevated CO2.Under elevated CO2 condition,both PVYN and tobacco aphid would continue to play adverse role in tobacco production.Moreover,higher CO2 concentration would strengthen the negative effects of the two integral agricultural factors.
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Claims 9
Claim · model-written summary
PVYN infection alleviated tobacco biomass increase under elevated CO2.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- PVYNe0
- Interactor
- PVYNe0pathogen
- Outcome
- tobacco biomasse0
- Direction
- alleviatede0
- Setting
- elevated CO2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase of tobacco biomass was alleviated after infected by PVYN and aphid under elevated CO2”
Claim · model-written summary
Aphid infestation alleviated tobacco biomass increase under elevated CO2.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- aphide0
- Interactor
- Myzus persicae(Sulzer)
Myzus persicaee1pest - Outcome
- tobacco biomasse0
- Direction
- alleviatede0
- Setting
- elevated CO2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase of tobacco biomass was alleviated after infected by PVYN and aphid under elevated CO2”
e1“tobacco aphid,Myzus persicae(Sulzer)or PVYN(potato virus Y)”
Claim · model-written summary
Tobacco biomass showed no significant difference under ambient CO2 after infection.
- Taxon
- tobaccoNicotiana tabacume0
- Outcome
- tobacco biomasse0
- Direction
- no significant differencee0
- Setting
- ambient CO2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant difference of tobacco biomass was found under ambient CO2”
Claim · model-written summary
Virus infection increased tobacco nitrogen content under elevated CO2.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- infected with viruse0
- Interactor
- viruse0pathogen
- Outcome
- nitrogen contente0
- Direction
- highere0
- Setting
- elevated CO2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant higher nitrogen content after infected with virus or by aphid + virus and soluble protein content of tobacco after infested by aphid or by aphid+virus occurred in elevated CO2”
t0“Responses of tobacco associated with PVY~N”
Claim · model-written summary
Combined aphid and virus infection increased tobacco nitrogen content.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- aphid + viruse0
- Interactor
- aphide0pest
- Second interactor
- viruse0pathogen
- Outcome
- nitrogen contente0
- Direction
- highere0
- Setting
- elevated CO2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant higher nitrogen content after infected with virus or by aphid + virus and soluble protein content of tobacco after infested by aphid or by aphid+virus occurred in elevated CO2”
t0“Responses of tobacco associated with PVY~N”
Claim · model-written summary
Aphid infestation increased tobacco soluble protein content.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- infested by aphide0
- Interactor
- aphide0pest
- Outcome
- soluble protein contente0
- Direction
- highere0
- Setting
- elevated CO2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant higher nitrogen content after infected with virus or by aphid + virus and soluble protein content of tobacco after infested by aphid or by aphid+virus occurred in elevated CO2”
Claim · model-written summary
Combined aphid and virus infestation increased tobacco soluble protein content.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- aphid+viruse0
- Interactor
- aphide0pest
- Second interactor
- viruse0pathogen
- Outcome
- soluble protein contente0
- Direction
- highere0
- Setting
- elevated CO2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant higher nitrogen content after infected with virus or by aphid + virus and soluble protein content of tobacco after infested by aphid or by aphid+virus occurred in elevated CO2”
Claim · model-written summary
PVYN-infected tobacco had higher nicotine than aphid-infested tobacco under both CO2 treatments.
- Taxon
- tobaccoNicotiana tabacume0
- Interactor
- PVYNe0pathogen
- Second interactor
- aphidsAphidomorphae0pest
- Outcome
- nicotine contente0
- Direction
- highere0
- Qualifier
- under two CO2 treatmentse0
- Comparator
- tobacco with aphidse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant higher nicotine content was observed in the tobacco with PVYN-infection in comparison with tobacco with aphids under two CO2 treatments”
Claim · model-written summary
Combined PVYN and aphid infestation lowered tobacco biomass under elevated CO2.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- PVYN + aphide0
- Interactor
- PVYNe0pathogen
- Second interactor
- aphide0pest
- Outcome
- biomass of tobaccoe0
- Direction
- lowere0
- Setting
- elevated CO2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The significant lower biomass of tobacco after infested by PVYN + aphid under elevated CO2”
The same questions in other papers
infection · physiology: osmolytes · Nicotiana tabacum (tobacco)Results agree
1 paper in the same direction as this paper
- negative
infection · nutrient: content · Nicotiana tabacum (tobacco)Results agree
3 papers in the same direction as this paper
- negative
- no effect
- negative
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.