Abstract
Root rot is a significant underground disease in date palms (Phoenix dactylifera L.) caused by pathogenic soil-borne fungus Fusarium oxysporum. Polymerase chain reaction (PCR) amplification was performed, followed by analysis of the sequences of nitrogen bases of the products using the program BLAST (Basic Local Alignment Search Tool). The results revealed that most pathogenic isolates were belonging to F. oxysporum, F. proliferatum S1, F. proliferatum S2, and F. fujikuroi. The selected isolates of Fusarium spp. were sequenced. The result of a pathogenicity assay shows that all the assayed isolated fungi were pathogenic to date palm plantlets at different percentages, and the main causative pathogenic fungus was F. oxysporum with disease severity (DS) of 96% and disease incidence (DI) of 96.6%. An attempt was made to find the most appropriate bioagents that can protect date palm offshoots (P. dactylfera L.) from certain soil-borne fungal diseases. The antifungal efficacy of Trichoderma harzianum was tested in vitro, where it inhibited mycelial radial growth of F. oxysporum by 87% on PDA medium. The results showed there was no reduction in mycelial growth of T. harzianum at all the different concentrations of NaCl tested under in vitro growth conditions compared with control concentrations (0 dSm).
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Claims 9
Claim · model-written summary
Pathogenic isolates were identified as F. oxysporum.
- Taxon
- DATE PALM
Phoenix dactyliferat0 - Interactor
- F. oxysporum
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=60)
Fusarium oxysporume0pathogen - Outcome
- F. oxysporume0
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“most pathogenic isolates were belonging to F. oxysporum, F. proliferatum S1, F. proliferatum S2, and F. fujikuroi”
t0“DATE PALM OFFSHOOTS”
Claim · model-written summary
Pathogenic isolates were identified as F. proliferatum S1.
- Taxon
- DATE PALMPhoenix dactyliferat0
- Interactor
- F. proliferatum S1Fusarium proliferatume0pathogen
- Outcome
- F. proliferatum S1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“most pathogenic isolates were belonging to F. oxysporum, F. proliferatum S1, F. proliferatum S2, and F. fujikuroi”
t0“DATE PALM OFFSHOOTS”
Claim · model-written summary
Pathogenic isolates were identified as F. proliferatum S2.
- Taxon
- DATE PALMPhoenix dactyliferat0
- Interactor
- F. proliferatum S2Fusarium proliferatume0pathogen
- Outcome
- F. proliferatum S2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“most pathogenic isolates were belonging to F. oxysporum, F. proliferatum S1, F. proliferatum S2, and F. fujikuroi”
t0“DATE PALM OFFSHOOTS”
Claim · model-written summary
Pathogenic isolates were identified as F. fujikuroi.
- Taxon
- DATE PALMPhoenix dactyliferat0
- Interactor
- F. fujikuroi
Fusarium fujikuroie0pathogen - Outcome
- F. fujikuroie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“most pathogenic isolates were belonging to F. oxysporum, F. proliferatum S1, F. proliferatum S2, and F. fujikuroi”
t0“DATE PALM OFFSHOOTS”
Claim · model-written summary
All tested fungal isolates were pathogenic to date palm plantlets at different percentages.
- Taxon
- date palmPhoenix dactyliferae0
- Organ / stage
- plantletse0
- Interactor
- assayed isolated fungie0pathogen
- Outcome
- pathogenic to date palm plantletse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all the assayed isolated fungi were pathogenic to date palm plantlets at different percentages”
Claim · model-written summary
F. oxysporum caused 96% disease severity in date palm plantlets.
- Taxon
- DATE PALMPhoenix dactyliferat0
- Interactor
- F. oxysporumFusarium oxysporume0pathogen
- Outcome
- disease severity (DS)e0
- Value
- 96%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the main causative pathogenic fungus was F. oxysporum with disease severity (DS) of 96% and disease incidence (DI) of 96.6%”
t0“DATE PALM OFFSHOOTS”
Claim · model-written summary
F. oxysporum caused 96.6% disease incidence in date palm plantlets.
- Taxon
- DATE PALMPhoenix dactyliferat0
- Interactor
- F. oxysporumFusarium oxysporume0pathogen
- Outcome
- disease incidence (DI)e0
- Value
- 96.6%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the main causative pathogenic fungus was F. oxysporum with disease severity (DS) of 96% and disease incidence (DI) of 96.6%”
t0“DATE PALM OFFSHOOTS”
Claim · model-written summary
Trichoderma harzianum inhibited F. oxysporum radial growth by 87% in vitro.
- Taxon
- DATE PALMPhoenix dactyliferat0
- Treatment
- Trichoderma harzianume0
- Interactor
- F. oxysporumFusarium oxysporume0pathogen
- Second interactor
- Trichoderma harzianum
Trichoderma harzianume0biocontrol_agent - Outcome
- mycelial radial growth of F. oxysporume0
- Direction
- inhibitede0
- Value
- 87%e0
- Setting
- in vitroe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Trichoderma harzianum was tested in vitro, where it inhibited mycelial radial growth of F. oxysporum by 87% on PDA medium”
t0“DATE PALM OFFSHOOTS”
Claim · model-written summary
NaCl concentrations did not reduce T. harzianum mycelial growth relative to control.
- Taxon
- DATE PALMPhoenix dactyliferat0
- Treatment
- NaCle0
- Interactor
- T. harzianumTrichoderma harzianume0biocontrol_agent
- Outcome
- mycelial growth of T. harzianume0
- Direction
- no reductione0
- Comparator
- control concentrations (0 dSm)e0
- Setting
- in vitro growth conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no reduction in mycelial growth of T. harzianum at all the different concentrations of NaCl tested under in vitro growth conditions compared with control concentrations (0 dSm)”
t0“DATE PALM OFFSHOOTS”
The same questions in other papers
sodium chloride · Trichoderma harzianum · Phoenix dactylifera (date palm)Results agree
1 paper in the same direction as this paper
- no effect
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.