Claim · model-written summary
Fusarium oxysporum isolates carrying SIX, CRX or C5 genes were significantly more aggressive on seedlings and mature bulbs.
- Taxon
- onion
Allium cepae0 - Interactor
- F . oxysporum
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=60)
Fusarium oxysporume1pathogen - Gene
- SIXe1
- Outcome
- aggressive on both seedlings and mature bulbse1
- Direction
- moree1
Verbatim
e0“Several Fusarium species cause disease in onion ( Allium cepa ), resulting in significant yield losses”
e1“Those F . oxysporum isolates that carried the Secreted In Xylem ( SIX ) genes, CRX genes and C5 gene were significantly more aggressive on both seedlings and mature bulbs”
Title
Minna Haapalainen; Emmi Kuivainen; Sari Iivonen; et al. Plant Pathology 2023. doi:10.1111/ppa.13718
Other claims from this paper (11)
- Association SIX-negative F. oxysporum isolates significantly reduced emergence of onion seedlings.
- Association On mature bulbs, SIX-negative isolates carrying CRX2 were significantly more virulent than those without CRX2.
- Association For F. oxysporum isolates, the test outcome on mature bulbs correlated well with the symptom status of the original bulb.
- Association For F. proliferatum isolates, no such correlation between mature bulb test outcome and symptom status was seen.
- Observation All F. proliferatum isolates were pathogenic to onion.
- Observation The SIX2-2 sequence was identical in all F. proliferatum isolates harbouring it.
- Observation SIX2-1 showed sequence variation that agreed with the phylogeny based on translation elongation factor 1-alpha.
- Observation Several isolates negative for SIX2-2 carried another potential virulence gene, CRX2.
- Mechanism The two SIX2 genes of F. proliferatum might have been acquired separately.
- Mechanism The two genes may encode overlapping functions.
- Observation A division into pathogenic and nonpathogenic F. oxysporum isolates was not obvious.
Nicotiana benthamiana
Cicer arietinum