Abstract
Fusarium oxysporum f. sp. Albedinis (Foa) is the causal agent of Bayoud disease, responsible for the loss of 75% of date palm trees in Morocco and posing a threat to its cultivation across North Africa. This study examined ten Foa isolated from various Moroccan locations for the presence of the transposable element Fot1 and the distribution of “Secreted in Xylem” (SIX) genes. Pathogenicity assays on date palm seedlings revealed varying levels of aggressiveness among isolates, with a positive correlation between aggressiveness and SIX gene count. Highly aggressive isolates harbored 9–12 SIX genes, while hypo-aggressive and moderately aggressive isolates carried 0–6. SIX2, SIX6, SIX7, SIX11, SIX12, and SIX13 were differently dispersed among aggressive isolates, whereas SIX12 and SIX13 were present in all aggressive isolates, suggesting their potential role in virulence. This study is the first to highlight a correlation between Foa aggressiveness and SIX gene distribution, providing a foundation for future functional analyses to elucidate their role in pathogenicity.
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Claims 6
Claim · model-written summary
Foa isolates varied in aggressiveness on date palm seedlings.
- Taxon
- date palm
Phoenix dactyliferae0 - Organ / stage
- seedlingse0
- Interactor
- Foa
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=60)
Fusarium oxysporume1pathogen - Outcome
- varying levels of aggressivenesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=500)
Verbatim
e0“Pathogenicity assays on date palm seedlings revealed varying levels of aggressiveness among isolates, with a positive correlation between aggressiveness and SIX gene count”
e1“Fusarium oxysporum f. sp. Albedinis (Foa) is the causal agent of Bayoud disease”
Claim · model-written summary
Foa aggressiveness correlated positively with SIX gene count on date palm.
- Taxon
- date palmPhoenix dactyliferae0
- Interactor
- FoaFusarium oxysporume1pathogen
- Gene
- SIXe0
- Outcome
- aggressivenesse0
- Direction
- positive correlatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pathogenicity assays on date palm seedlings revealed varying levels of aggressiveness among isolates, with a positive correlation between aggressiveness and SIX gene count”
e1“Fusarium oxysporum f. sp. Albedinis (Foa) is the causal agent of Bayoud disease”
Claim · model-written summary
Highly aggressive isolates carried 9–12 SIX genes.
- Taxon
- date palmPhoenix dactyliferat0
- Interactor
- FoaFusarium oxysporume1pathogen
- Gene
- SIXe0
- Outcome
- SIX genese0
- Value
- 9–12e0
- Qualifier
- Highly aggressive isolatese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highly aggressive isolates harbored 9–12 SIX genes”
t0“loss of 75% of date palm trees”
e1“Fusarium oxysporum f. sp. Albedinis (Foa) is the causal agent of Bayoud disease”
Claim · model-written summary
Hypo-aggressive and moderately aggressive isolates carried 0–6 SIX genes.
- Taxon
- date palmPhoenix dactyliferat0
- Interactor
- FoaFusarium oxysporume1pathogen
- Outcome
- isolates carriede0
- Value
- 0–6e0
- Qualifier
- hypo-aggressive and moderately aggressive isolatese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hypo-aggressive and moderately aggressive isolates carried 0–6”
t0“loss of 75% of date palm trees”
e1“Fusarium oxysporum f. sp. Albedinis (Foa) is the causal agent of Bayoud disease”
Claim · model-written summary
SIX2, SIX6, SIX7, SIX11, SIX12 and SIX13 differed in distribution among aggressive isolates.
- Taxon
- date palmPhoenix dactyliferat0
- Interactor
- FoaFusarium oxysporume1pathogen
- Gene
- SIX2, SIX6, SIX7, SIX11, SIX12, and SIX13e0
- Outcome
- differently dispersed among aggressive isolatese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SIX2, SIX6, SIX7, SIX11, SIX12, and SIX13 were differently dispersed among aggressive isolates”
t0“loss of 75% of date palm trees”
e1“Fusarium oxysporum f. sp. Albedinis (Foa) is the causal agent of Bayoud disease”
Claim · model-written summary
SIX12 and SIX13 occurred in every aggressive isolate.
- Taxon
- date palmPhoenix dactyliferat0
- Interactor
- FoaFusarium oxysporume1pathogen
- Gene
- SIX12 and SIX13e0
- Outcome
- present in all aggressive isolatese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SIX12 and SIX13 were present in all aggressive isolates”
t0“loss of 75% of date palm trees”
e1“Fusarium oxysporum f. sp. Albedinis (Foa) is the causal agent of Bayoud disease”