Abstract
Phytophthora spp. are waterborne plant pathogens that are commonly found in streams, rivers, and reclaimed irrigation water. Rhododendron and Pieris trap plants at two commercial nurseries were irrigated with water naturally infested with Phytophthora spp. during the 2011 and 2012 growing seasons to assess the frequency of disease. Phytophthora spp. were consistently recovered from water samples at every collection time but detected on only 2 of the 384 trap plants during the two growing seasons. Pathogenicity assays proved that Phytophthora hydropathica and Phytophthora taxon PgChlamydo, commonly recovered taxa in irrigation water at the nurseries, were foliar pathogens of Rhododendron and Pieris; however, neither species was able to cause root rot on these same hosts. Overall, Phytophthora spp.-infested irrigation water did not act as a primary source of infection on Rhododendron and Pieris, even though foliar pathogenic species of Phytophthora were present in the water.
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Claims 6
Claim · model-written summary
Phytophthora was recovered from every water sampling time.
- Taxon
- Rhododendron and Pieris
Rhododendron
Pierist0 - Interactor
- Phytophthora spp.
Phytophthorae0pathogen - Outcome
- Phytophthora spp. were consistently recovered from water samplese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phytophthora spp. were consistently recovered from water samples at every collection time but detected on only 2 of the 384 trap plants during the two growing seasons.”
t0“Rhododendron and Pieris”
Claim · model-written summary
Phytophthora was detected on only 2 of 384 trap plants.
- Taxon
- Rhododendron and PierisRhododendronPierist0
- Interactor
- Phytophthora spp.Phytophthorae0pathogen
- Outcome
- detected on only 2 of the 384 trap plantse0
- Value
- 2 of the 384e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phytophthora spp. were consistently recovered from water samples at every collection time but detected on only 2 of the 384 trap plants during the two growing seasons.”
t0“Rhododendron and Pieris”
Claim · model-written summary
P. hydropathica was a foliar pathogen of both hosts.
- Taxon
- Rhododendron and PierisRhododendronPierise0
- Interactor
- Phytophthora hydropathicaPhytophthora honggalleglyanae0pathogen
- Outcome
- foliar pathogense0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phytophthora hydropathica and Phytophthora taxon PgChlamydo, commonly recovered taxa in irrigation water at the nurseries, were foliar pathogens of Rhododendron and Pieris”
Claim · model-written summary
P. taxon PgChlamydo was a foliar pathogen of both hosts.
- Taxon
- Rhododendron and PierisRhododendronPierise0
- Interactor
- Phytophthora taxon PgChlamydoPhytophthora taxon Pgchlamydoe0pathogen
- Outcome
- foliar pathogense0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phytophthora hydropathica and Phytophthora taxon PgChlamydo, commonly recovered taxa in irrigation water at the nurseries, were foliar pathogens of Rhododendron and Pieris”
Claim · model-written summary
Neither Phytophthora taxon caused root rot on the hosts.
- Taxon
- Rhododendron and PierisRhododendronPierise0
- Interactor
- Phytophthora hydropathicaPhytophthora honggalleglyanae0pathogen
- Outcome
- root rote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phytophthora hydropathica and Phytophthora taxon PgChlamydo, commonly recovered taxa in irrigation water at the nurseries, were foliar pathogens of Rhododendron and Pieris; however, neither species was able to cause root rot on these same hosts.”
Claim · model-written summary
Infested irrigation water was not a primary infection source.
- Taxon
- Rhododendron and PierisRhododendronPierise0
- Interactor
- Phytophthora spp.Phytophthorae0pathogen
- Outcome
- primary source of infectione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phytophthora spp.-infested irrigation water did not act as a primary source of infection on Rhododendron and Pieris”