Abstract
In 2000, cucumber (Cucumis sativus cv. Albatros) in several commercial glasshouses in south-eastern Spain (Almería) exhibited symptoms of wilt, yellowing and necrotic streaks on the stems. Internal, vascular discoloration in affected plants extended from the base of the stem upward. Initial observations were reminiscent of fusarium wilt disease of cucumber, caused by Fusarium oxysporum f. sp. cucumerinum, as described by Owen (1955). Pure colonies of fungi were isolated from surface-disinfested (with flame) stem segments, cut at 0·5 m above the hypocotyl, on potato dextrose agar (PDA) medium. Isolates were identified as Fusarium oxysporum due to occurrence of typical macroconidia with foot-shaped basal cells, microconidia borne in false heads only on monophialides and chlamydospores. To confirm pathogenicity, eight isolates (1-week-old cultures grown on PDA) were used to root-dip inoculate (1 × 106 conidia mL−1) 1-week-old seedlings of cucumber cvs Nevada and Albatros. Seedlings were then transplanted into pots containing vermiculite growth medium and placed in a glasshouse. Of the tested isolates, all but one were pathogenic, causing wilt symptoms or death in 60–100% of dip-inoculated plants, from which F. oxysporum was consistently reisolated. Symptoms observed in inoculated plants were similar to those observed in cucumber plants in commercial glasshouses. This is the first report of F. oxysporum causing wilt of cucumber in Spain.
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Claims 4
Claim · model-written summary
Cucumber in commercial glasshouses in Almería showed wilt, yellowing, stem necrosis and vascular discoloration.
- Taxon
- cucumber
Cucumis sativuse0 - Material
- Albatrose0
- Outcome
- symptoms of wilt, yellowing and necrotic streaks on the stemse0
- Setting
- south-eastern Spain (Almería)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cucumber (Cucumis sativus cv. Albatros) in several commercial glasshouses in south-eastern Spain (Almería) exhibited symptoms of wilt, yellowing and necrotic streaks on the stems”
e1“Internal, vascular discoloration in affected plants extended from the base of the stem upward”
Claim · model-written summary
Seven of eight Fusarium oxysporum isolates caused wilt or death in 60–100% of inoculated cucumber plants.
- Taxon
- cucumberCucumis sativuse0
- Material
- Nevada and Albatrose0
- Treatment
- root-dip inoculatee0
- Interactor
- F. oxysporum
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=60)
Fusarium oxysporume2pathogen - Outcome
- wilt symptoms or deathe1
- Direction
- causinge1
- Value
- 60–100%e1
Not reportedComparator
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“eight isolates (1-week-old cultures grown on PDA) were used to root-dip inoculate (1 × 106 conidia mL−1) 1-week-old seedlings of cucumber cvs Nevada and Albatros”
e1“all but one were pathogenic, causing wilt symptoms or death in 60–100% of dip-inoculated plants”
e2“F. oxysporum was consistently reisolated”
Claim · model-written summary
F. oxysporum was consistently reisolated from symptomatic inoculated cucumber plants.
- Taxon
- cucumberCucumis sativuse0
- Interactor
- F. oxysporumFusarium oxysporume1pathogen
- Outcome
- F. oxysporum was consistently reisolatede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedlings of cucumber cvs Nevada and Albatros”
e1“F. oxysporum was consistently reisolated”
Claim · model-written summary
The report identifies F. oxysporum causing cucumber wilt in Spain for the first time.
- Taxon
- cucumberCucumis sativuse0
- Interactor
- F. oxysporumFusarium oxysporume0pathogen
- Outcome
- first report of F. oxysporum causing wilte0
- Setting
- Spaine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“first report of F. oxysporum causing wilt of cucumber in Spain”
The same questions in other papers
inoculation · Fusarium oxysporum · Cucumis sativus (cucumber)Positive and negative results
2 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
4 papers more in this group
See all 8 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.