Paper · 2026 · Frontiers in Microbiology

N6-adenosine-methyltransferase MTA70-like participates antiviral responses in Nicotiana benthamiana

Haijuan Wang; Tianyi Zhang; Jiaxin Xu; et al.

7
claims
14
verbatim quotes
0
citations
2
research areas
✓
Open access · cc-by

Abstract

Introduction: Previous studies have shown that m6A methylation has a certain regulatory role in the replication of human viruses and plant viruses. Particularly, the m6A methylation in the host endogenous gene significantly decreased after the infection of potato virus Y (PVY). Methods: Here, we cloned and characterized N6-adenosine-methyltransferase MTA70-like (ToMTA70) from tomato. The ToMTA70 was constructed into the pMDC32 binary vector. To create the ToMTA70 mutant, sequence of the MTA70 superfamily domain (493-653) with PDS and GUS sequences, respectively. The effect of the ToMTA70 on viral accumulation was studied using an Agrobacterium-mediated transient expression assay. Results: A conserved MT-A70 superfamily domain in ToMTA70 was identified by encoding sequence and structural analyses, which indicating ToMTA70 might involve in m6A methylation. The transient expression of ToMTA70 inhibited viral accumulation of PVY. When the conserved domain of MTA70 super family was replaced by PDS and GUS (ToMTA70-PDS or ToMTA70-GUS), the PVY infection was increased in plants comparing with the control. However, transiently expression of ToMTA70 did not show any influence on TVMV and TMV infection. Discussion: This suggests that ToMTA70 participate in plant antiviral responses of PVY, which can be applied for engineering the anti-viral strategy.

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Claims 7

Observationobservedoriginal resultmeasured

Claim · model-written summary

ToMTA70 contains a conserved MT-A70 superfamily domain.

Gene
ToMTA70e0
Outcome
conserved MT-A70 superfamily domaine0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“A conserved MT-A70 superfamily domain in ToMTA70 was identified by encoding sequence and structural analyses”

✓ located verbatim in the source · abstract, characters 698–806 · show in text ↑
e1

“N6-adenosine-methyltransferase MTA70-like (ToMTA70) from tomato”

✓ located verbatim in the source · abstract, characters 322–385 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Transient ToMTA70 expression inhibited PVY accumulation.

Taxon
Nicotiana benthamianaNicotiana benthamianat0
Treatment
transient expression of ToMTA70e0
Interactor
PVYPotato virus Ye0pathogen
Gene
ToMTA70e0
Outcome
viral accumulation of PVYe0
Direction
inhibitede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana benthamiana
Nicotiana benthamiana · TaxonCharles Andres · CC BY-SA 3.0 · Wikimedia Commons ↗
Potato virus Y
Potato virus Y · InteractorMahmoud Hamdy Abd El-Aziz, Plant Pathology Institute, Agricultural. Research Center, Alexandria, Egyp · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The transient expression of ToMTA70 inhibited viral accumulation of PVY.”

✓ located verbatim in the source · abstract, characters 867–939 · show in text ↑
t0

“Nicotiana benthamiana”

✓ located verbatim in the source · title, characters 78–99 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Replacing the MTA70 domain with PDS increased PVY infection relative to control.

Taxon
Nicotiana benthamianaNicotiana benthamianat0
Treatment
replaced by PDSe0
Interactor
PVYPotato virus Ye0pathogen
Gene
ToMTA70-PDSe0
Outcome
PVY infectione0
Direction
increasede0
Comparator
the controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana benthamiana
Nicotiana benthamiana · TaxonCharles Andres · CC BY-SA 3.0 · Wikimedia Commons ↗
Potato virus Y
Potato virus Y · InteractorMahmoud Hamdy Abd El-Aziz, Plant Pathology Institute, Agricultural. Research Center, Alexandria, Egyp · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“When the conserved domain of MTA70 super family was replaced by PDS and GUS (ToMTA70-PDS or ToMTA70-GUS), the PVY infection was increased in plants comparing with the control.”

✓ located verbatim in the source · abstract, characters 940–1115 · show in text ↑
t0

“Nicotiana benthamiana”

✓ located verbatim in the source · title, characters 78–99 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Replacing the MTA70 domain with GUS increased PVY infection relative to control.

Taxon
Nicotiana benthamianaNicotiana benthamianat0
Treatment
replaced by PDS and GUSe0
Interactor
PVYPotato virus Ye0pathogen
Gene
ToMTA70-GUSe0
Outcome
PVY infectione0
Direction
increasede0
Comparator
the controle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana benthamiana
Nicotiana benthamiana · TaxonCharles Andres · CC BY-SA 3.0 · Wikimedia Commons ↗
Potato virus Y
Potato virus Y · InteractorMahmoud Hamdy Abd El-Aziz, Plant Pathology Institute, Agricultural. Research Center, Alexandria, Egyp · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“When the conserved domain of MTA70 super family was replaced by PDS and GUS (ToMTA70-PDS or ToMTA70-GUS), the PVY infection was increased in plants comparing with the control.”

✓ located verbatim in the source · abstract, characters 940–1115 · show in text ↑
t0

“Nicotiana benthamiana”

✓ located verbatim in the source · title, characters 78–99 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Transient ToMTA70 expression showed no influence on TVMV infection.

Taxon
Nicotiana benthamianaNicotiana benthamianat0
Treatment
transiently expression of ToMTA70e0
Interactor
TVMVTobacco vein mottling viruse0pathogen
Gene
ToMTA70e0
Outcome
TVMVe0
Direction
did not show any influencee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana benthamiana
Nicotiana benthamiana · TaxonCharles Andres · CC BY-SA 3.0 · Wikimedia Commons ↗
Tobacco vein mottling virus
Tobacco vein mottling virus · InteractorR.J. Reynolds Tobacco Company , R.J. Reynolds Tobacco Company, Bugwood.org · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“transiently expression of ToMTA70 did not show any influence on TVMV and TMV infection.”

✓ located verbatim in the source · abstract, characters 1125–1212 · show in text ↑
t0

“Nicotiana benthamiana”

✓ located verbatim in the source · title, characters 78–99 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Transient ToMTA70 expression showed no influence on TMV infection.

Taxon
Nicotiana benthamianaNicotiana benthamianat0
Treatment
transiently expression of ToMTA70e0
Interactor
TMVTobacco mosaic viruse0pathogen
Gene
ToMTA70e0
Outcome
TMV infectione0
Direction
did not show any influencee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana benthamiana
Nicotiana benthamiana · TaxonCharles Andres · CC BY-SA 3.0 · Wikimedia Commons ↗
Tobacco mosaic virus
Tobacco mosaic virus · InteractorFrank Vincentz · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“transiently expression of ToMTA70 did not show any influence on TVMV and TMV infection.”

✓ located verbatim in the source · abstract, characters 1125–1212 · show in text ↑
t0

“Nicotiana benthamiana”

✓ located verbatim in the source · title, characters 78–99 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors suggest ToMTA70 may be used for an antiviral strategy against PVY.

Taxon
Nicotiana benthamianaNicotiana benthamianat0
Interactor
PVYPotato virus Ye0pathogen
Gene
ToMTA70e0
Outcome
engineering the anti-viral strategye0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana benthamiana
Nicotiana benthamiana · TaxonCharles Andres · CC BY-SA 3.0 · Wikimedia Commons ↗
Potato virus Y
Potato virus Y · InteractorMahmoud Hamdy Abd El-Aziz, Plant Pathology Institute, Agricultural. Research Center, Alexandria, Egyp · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“ToMTA70 participate in plant antiviral responses of PVY, which can be applied for engineering the anti-viral strategy.”

✓ located verbatim in the source · abstract, characters 1244–1362 · show in text ↑
t0

“Nicotiana benthamiana”

✓ located verbatim in the source · title, characters 78–99 · show in text ↑

transgenic · Tobacco vein mottling virus · Nicotiana benthamianaPositive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 papers →

transgenic · Tobacco mosaic virus · Nicotiana benthamianaPositive and negative results

3 papers: 1 positive, 2 negative or no effect

1 paper in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. negative
See all 3 papers →

transgenic · Potato virus Y · Nicotiana benthamianaResults agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 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.