Abstract
In maize (Zea mays L), the fungus Fusarium verticillioides can behave as a pathogen, but it is also able of asymptomatic colonization as an endophyte. Therefore, it would be of great value to identify metabolites and/or metabolic pathways implicated in mutualistic and pathogenic interactions. The objectives of the present study were: (i) to investigate the effect of seed colonization by F. verticillioides on maize growth in a group of inbreds with contrasting resistance to F. verticillioides; (ii) to know if maize priming by Fusarium seed infection affects maize response to other parasites and if these differences could depend on genotype resistance to Fusarium; and (iii) to determine which metabolites could be associated to beneficial/detrimental changes on maize performance. Targeted and untargeted metabolomic approaches were carried out to characterize the response of control and primed plants to the most common maize pest in the Mediterranean area, Sesamia nonagrioides Lefèbvre (Lepidoptera: Noctuidae). The study cannot assume a differential pattern of infection between resistant and susceptible inbreds, but seed inoculation with F. verticillioides upon infestation with S. nonagrioides, significantly altered defense metabolism in resistant inbreds. Meanwhile it also induced a lipid response in susceptible inbreds that could mediate their increased plant susceptibility to insect attack. Although an endophytic interaction between the fungus and specific genotypes cannot be proven, defense pathways were favorably altered by F. verticillioides colonization among resistant inbreds.
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Claims 4
Claim · model-written summary
Seed inoculation with F. verticillioides upon S. nonagrioides infestation significantly altered defence metabolism in resistant inbreds.
- Material
- resistant inbredse1
- Treatment
- seed inoculation with F. verticillioidese1
- Interactor
- S. nonagrioides
.jpg?width=60)
Sesamia nonagrioidese1pest - Second interactor
- F. verticillioides
Fusarium verticillioidese1pathogen - Outcome
- defense metabolisme1
- Direction
- alterede1
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“on maize performance against Sesamia nonagrioides attack”
e1“but seed inoculation with F. verticillioides upon infestation with S. nonagrioides, significantly altered defense metabolism in resistant inbreds”
Claim · model-written summary
Seed inoculation may induce a lipid response in susceptible inbreds that mediates their increased susceptibility to insect attack.
- Material
- susceptible inbredse1
- Outcome
- lipid responsee1
- Qualifier
- could mediate their increased plant susceptibility to insect attacke1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on maize performance against Sesamia nonagrioides attack”
e1“Meanwhile it also induced a lipid response in susceptible inbreds that could mediate their increased plant susceptibility to insect attack”
Claim · model-written summary
Fusarium verticillioides colonization favourably altered defence pathways in resistant inbreds.
- Material
- resistant inbredse1
- Treatment
- F. verticillioides colonizatione1
- Interactor
- F. verticillioidesFusarium verticillioidese1pathogen
- Outcome
- defense pathwayse1
- Direction
- favorably alterede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on maize performance against Sesamia nonagrioides attack”
e1“defense pathways were favorably altered by F. verticillioides colonization among resistant inbreds”
Claim · model-written summary
The study cannot assume a differential pattern of infection between resistant and susceptible inbreds.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“on maize performance against Sesamia nonagrioides attack”
e1“The study cannot assume a differential pattern of infection between resistant and susceptible inbreds”
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