Abstract
Tomato (Solanum lycopersicum) can establish symbiotic interactions with arbuscular mycorrhizal (AM) fungi, and can be infected by several pathogenic viruses. Here, we investigated the impact of mycorrhization by the fungus Glomus mosseae on the Tomato spotted wilt virus (TSWV) infection of tomato plants by transcriptomic and hormones level analyses. In TSWV-infected mycorrhizal plants, the AM fungus root colonization limited virus-induced changes in gene expression in the aerial parts. The virus-responsive upregulated genes, no longer induced in infected mycorrhizal plants, were mainly involved in defense responses and hormone signaling, while the virus-responsive downregulated genes, no longer repressed in mycorrhizal plants, were involved in primary metabolism. The presence of the AM fungus limits, in a salicylic acid-independent manner, the accumulation of abscissic acid observed in response to viral infection. At the time of the molecular analysis, no differences in virus concentration or symptom severity were detected between mycorrhizal and nonmycorrhizal plants. However, in a longer period, increase in virus titer and delay in the appearance of recovery were observed in mycorrhizal plants, thus indicating that the plant's reaction to TSWV infection is attenuated by mycorrhization.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-sa. 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 8
Claim · model-written summary
Mycorrhizal colonization limited virus-induced aerial gene-expression changes.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- AM fungus root colonizatione0
- Interactor
- AM funguse0symbiont
- Outcome
- virus-induced changes in gene expressione0
- Direction
- limitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AM fungus root colonization limited virus-induced changes in gene expression in the aerial parts”
t0“Tomato (Solanum lycopersicum)”
Claim · model-written summary
Virus-responsive defense and hormone genes were no longer induced in mycorrhizal plants.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- mycorrhizale0
- Outcome
- virus-responsive upregulated genese0
- Direction
- no longer inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“virus-responsive upregulated genes, no longer induced in infected mycorrhizal plants, were mainly involved in defense responses and hormone signaling”
t0“Tomato (Solanum lycopersicum)”
Claim · model-written summary
Virus-responsive primary-metabolism genes were no longer repressed in mycorrhizal plants.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- mycorrhizale0
- Outcome
- virus-responsive downregulated genese0
- Direction
- no longer repressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“virus-responsive downregulated genes, no longer repressed in mycorrhizal plants, were involved in primary metabolism”
t0“Tomato (Solanum lycopersicum)”
Claim · model-written summary
AM fungus limited viral-infection-induced abscissic acid accumulation independently of salicylic acid.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- AM funguse0
- Interactor
- AM funguse0symbiont
- Outcome
- accumulation of abscissic acide0
- Direction
- limitse0
- Qualifier
- salicylic acid-independent mannere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“presence of the AM fungus limits, in a salicylic acid-independent manner, the accumulation of abscissic acid observed in response to viral infection”
t0“Tomato (Solanum lycopersicum)”
Claim · model-written summary
Virus concentration did not differ at molecular analysis time.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- virus concentratione0
- Direction
- no differencese0
- Comparator
- mycorrhizal and nonmycorrhizal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the time of the molecular analysis, no differences in virus concentration or symptom severity were detected between mycorrhizal and nonmycorrhizal plants”
t0“Tomato (Solanum lycopersicum)”
Claim · model-written summary
Symptom severity did not differ at molecular analysis time.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- symptom severitye0
- Direction
- no differencese0
- Comparator
- mycorrhizal and nonmycorrhizal plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the time of the molecular analysis, no differences in virus concentration or symptom severity were detected between mycorrhizal and nonmycorrhizal plants”
t0“Tomato (Solanum lycopersicum)”
Claim · model-written summary
Virus titer increased over the longer period in mycorrhizal plants.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- mycorrhizale0
- Outcome
- virus titere0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in a longer period, increase in virus titer and delay in the appearance of recovery were observed in mycorrhizal plants”
t0“Tomato (Solanum lycopersicum)”
Claim · model-written summary
Recovery appeared later in mycorrhizal plants.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- mycorrhizale0
- Outcome
- appearance of recoverye0
- Direction
- delaye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in a longer period, increase in virus titer and delay in the appearance of recovery were observed in mycorrhizal plants”
t0“Tomato (Solanum lycopersicum)”
The same questions in other papers
mycorrhiza · molecular: expression · Solanum lycopersicum (tomato)Positive and negative results
17 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
15 papers more in this group
See all 19 papers →mycorrhiza · molecular: metabolites · Solanum lycopersicum (tomato)Positive and negative results
27 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
26 papers more in this group
See all 30 papers →mycorrhiza · disease · Solanum lycopersicum (tomato)Positive and negative results
5 papers in the same direction as this paper · 31 in the opposite direction
- positive
- negative
- positive
33 papers more in this group
See all 37 papers →infection · molecular: expression · Solanum lycopersicum (tomato)Positive and negative results
25 papers in the same direction as this paper · 12 in the opposite direction
- negative
- negative
- negative
34 papers more in this group
See all 38 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.