Abstract
A pathogenic bitunicate ascomycetous fungus, identified as Asterotexis cucurbitacearum, was found repeatedly on living leaves of Cucurbita pepo (gourd) and Sechium edule (chayote) in Panama. A. cucurbitacearum represents a new report for Panama and S. edule is a new host plant for this fungus. Based on an examination of herbarium specimens, this species is also reported for the first time from Costa Rica and Grenada. Cells of the scutellum extending to the base of the fruiting structure and producing an appressorium on the leaf surface are documented for the first time. As shown by LSU sequence data, A. cucurbitacearum represents a divergent, hitherto molecularly unsampled, phylogenetic clade of the Dothideomycetes. The closest relatives, for which sequence data are available, are members of the Pleosporomycetidae and Dothideomycetes incertae sedis with sequence similarity below 90%, as shown by BLAST search. A preliminary neighbour-joining analysis indicates that A. cucurbitacearum probably belongs to the Dothideomycetidae (incertae sedis).
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Claims 7
Claim · model-written summary
Sechium edule is a new host of Asterotexis cucurbitacearum in Panama.
- Taxon
- Sechium edule
Sicyos edulise0 - Interactor
- Asterotexis cucurbitacearumAsterotexis cucurbitacearume0pathogen
- Outcome
- new host plant for this funguse1
- Setting
- Panamae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A pathogenic bitunicate ascomycetous fungus, identified as Asterotexis cucurbitacearum, was found repeatedly on living leaves of Cucurbita pepo (gourd) and Sechium edule (chayote) in Panama”
e1“S. edule is a new host plant for this fungus”
Claim · model-written summary
Asterotexis cucurbitacearum was found on living leaves of Cucurbita pepo in Panama.
- Taxon
- Cucurbita pepo
Cucurbita pepoe0 - Interactor
- Asterotexis cucurbitacearumAsterotexis cucurbitacearume0pathogen
- Outcome
- found repeatedly on living leavese0
- Setting
- Panamae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A pathogenic bitunicate ascomycetous fungus, identified as Asterotexis cucurbitacearum, was found repeatedly on living leaves of Cucurbita pepo (gourd) and Sechium edule (chayote) in Panama”
Claim · model-written summary
Asterotexis cucurbitacearum is reported for the first time from Costa Rica and Grenada on Cucurbitaceae.
- Taxon
- CucurbitaceaeCucurbitaceaet0
- Interactor
- Asterotexis cucurbitacearumAsterotexis cucurbitacearume0pathogen
- Outcome
- reported for the first timee2
- Setting
- Costa Rica and Grenadae2
Verbatim
t0“pathogen of Cucurbitaceae”
e0“A pathogenic bitunicate ascomycetous fungus, identified as Asterotexis cucurbitacearum, was found repeatedly on living leaves of Cucurbita pepo (gourd) and Sechium edule (chayote) in Panama”
e2“this species is also reported for the first time from Costa Rica and Grenada”
Claim · model-written summary
Asterotexis cucurbitacearum is a new report for Panama on Cucurbitaceae.
- Taxon
- CucurbitaceaeCucurbitaceaet0
- Interactor
- A. cucurbitacearumAsterotexis cucurbitacearume1pathogen
- Outcome
- new reporte1
- Setting
- Panamae1
Verbatim
t0“pathogen of Cucurbitaceae”
e1“A. cucurbitacearum represents a new report for Panama”
Claim · model-written summary
Scutellum cells of Asterotexis cucurbitacearum extend to the fruiting structure base and produce an appressorium on the leaf surface, documented for the first time.
- Taxon
- CucurbitaceaeCucurbitaceaet0
- Organ / stage
- leaf surfacee3
- Interactor
- Asterotexis cucurbitacearumAsterotexis cucurbitacearume0pathogen
- Outcome
- producing an appressoriume3
Verbatim
t0“pathogen of Cucurbitaceae”
e0“A pathogenic bitunicate ascomycetous fungus, identified as Asterotexis cucurbitacearum, was found repeatedly on living leaves of Cucurbita pepo (gourd) and Sechium edule (chayote) in Panama”
e3“Cells of the scutellum extending to the base of the fruiting structure and producing an appressorium on the leaf surface are documented for the first time”
Claim · model-written summary
Asterotexis cucurbitacearum represents a divergent, previously unsampled phylogenetic clade of the Dothideomycetes.
- Taxon
- CucurbitaceaeCucurbitaceaet0
- Interactor
- A. cucurbitacearumAsterotexis cucurbitacearume4pathogen
- Outcome
- phylogenetic cladee4
Verbatim
t0“pathogen of Cucurbitaceae”
e4“A. cucurbitacearum represents a divergent, hitherto molecularly unsampled, phylogenetic clade of the Dothideomycetes”
Claim · model-written summary
Asterotexis cucurbitacearum probably belongs to the Dothideomycetidae (incertae sedis).
- Taxon
- CucurbitaceaeCucurbitaceaet0
- Interactor
- A. cucurbitacearumAsterotexis cucurbitacearume5pathogen
- Outcome
- belongs to the Dothideomycetidaee5
Verbatim
t0“pathogen of Cucurbitaceae”
e5“A preliminary neighbour-joining analysis indicates that A. cucurbitacearum probably belongs to the Dothideomycetidae (incertae sedis)”