Paper · 2018 · Viruses

Molecular Co-Chaperone SGT1 Is Critical for Cell-to-Cell Movement and Systemic Infection of Tomato Spotted Wilt Virus in Nicotiana benthamiana

Xin Qian; Qing Xiang; Tongqing Yang; et al.

5
claims
6
verbatim quotes
17
citations
2
research areas
✓
Open access · cc-by

Abstract

Tospovirus is a tripartite negative stranded RNA virus and is considered as one of the most devastating plant viruses. Successful virus infection in plant requires many host factors. To date, very few host factors have been identified as important in Tospovirus infection in plants. We reported earlier that NSm protein encoded by Tomato spotted wilt virus (TSWV), a type species of the genus Orthotospovirus, plays critical roles in viral cell-to-cell and long-distance movement. In this study, we determined that molecular co-chaperone NbSGT1 interacted with TSWV NSm in Nicotiana benthamiana. TSWV infection significantly upregulated the expression of NbSGT1 gene and transient overexpression of NbSGT1 in N. benthamiana leaves accelerated TSWV infection. In contrast, silencing the NbSGT1 gene expression using a virus-induced gene silencing (VIGS) approach strongly inhibited TSWV NSm cell-to-cell movement, as well as TSWV local and systemic infection in N. benthamiana plants. Furthermore, NbSGT1 was found to regulate the infection of both American and Euro/Asia type tospoviruses in N. benthamiana plant. Collectively, our findings presented in this paper and the results published previously indicated that molecular co-chaperone NbSGT1 plays important roles in modulating both positive stranded and tripartite negative stranded RNA virus infection in plants.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 5

Associationobservedoriginal resultmeasured

Claim · model-written summary

NbSGT1 interacted with TSWV NSm.

Taxon
Nicotiana benthamianaNicotiana benthamianae0
Interactor
TSWVOrthotospovirus tomatomaculaee0pathogen
Gene
NbSGT1e0
Outcome
interacted with TSWV NSme0

Not reportedDirection

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 ↗
Orthotospovirus tomatomaculae
Orthotospovirus tomatomaculae · InteractorWilliam M. Brown Jr., Bugwood.org · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“molecular co-chaperone NbSGT1 interacted with TSWV NSm in Nicotiana benthamiana.”

✓ located verbatim in the source · abstract, characters 515–595 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

TSWV infection upregulated NbSGT1 expression.

Taxon
N. benthamianaNicotiana benthamianae1
Treatment
TSWV infectione0
Interactor
TSWVOrthotospovirus tomatomaculaee0pathogen
Outcome
expression of NbSGT1 genee0
Direction
upregulatede0

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 ↗
Orthotospovirus tomatomaculae
Orthotospovirus tomatomaculae · InteractorWilliam M. Brown Jr., Bugwood.org · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“TSWV infection significantly upregulated the expression of NbSGT1 gene”

✓ located verbatim in the source · abstract, characters 596–666 · show in text ↑
e1

“in N. benthamiana leaves”

✓ located verbatim in the source · abstract, characters 706–730 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

NbSGT1 overexpression accelerated TSWV infection.

Taxon
N. benthamianaNicotiana benthamianae0
Treatment
transient overexpression of NbSGT1e0
Interactor
TSWVOrthotospovirus tomatomaculaee0pathogen
Gene
NbSGT1e0
Outcome
TSWV infectione0
Direction
acceleratede0

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 ↗
Orthotospovirus tomatomaculae
Orthotospovirus tomatomaculae · InteractorWilliam M. Brown Jr., Bugwood.org · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“transient overexpression of NbSGT1 in N. benthamiana leaves accelerated TSWV infection.”

✓ located verbatim in the source · abstract, characters 671–758 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NbSGT1 silencing inhibited NSm cell to cell movement and local and systemic infection.

Taxon
N. benthamianaNicotiana benthamianae0
Treatment
silencing the NbSGT1 gene expressione0
Interactor
TSWVOrthotospovirus tomatomaculaee0pathogen
Gene
NbSGT1e0
Outcome
TSWV NSm cell-to-cell movement, as well as TSWV local and systemic infectione0
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 ↗
Orthotospovirus tomatomaculae
Orthotospovirus tomatomaculae · InteractorWilliam M. Brown Jr., Bugwood.org · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“silencing the NbSGT1 gene expression using a virus-induced gene silencing (VIGS) approach strongly inhibited TSWV NSm cell-to-cell movement, as well as TSWV local and systemic infection in N. benthamiana plants.”

✓ located verbatim in the source · abstract, characters 772–983 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

NbSGT1 regulated infection by American and Euro/Asia type tospoviruses.

Taxon
N. benthamianaNicotiana benthamianae0
Interactor
tospovirusesOrthotospoviruse0pathogen
Gene
NbSGT1e0
Outcome
infection of both American and Euro/Asia type tospovirusese0

Not reportedDirection

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 ↗
Orthotospovirus
Orthotospovirus · InteractorJulia Minicka, Aleksandra Zarzyńska-Nowak, Daria Budzyńska, Natasza Borodynko-Filas, and Beata Hasiów-Jaroszewska · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“NbSGT1 was found to regulate the infection of both American and Euro/Asia type tospoviruses in N. benthamiana plant.”

✓ located verbatim in the source · abstract, characters 997–1113 · show in text ↑

loss of function · Orthotospovirus tomatomaculae · Nicotiana benthamianaPositive and negative results

6 papers: 1 positive, 5 negative or no effect

5 in the opposite direction

  1. negative
  2. negative
  3. negative

2 papers more in this group

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.