Abstract
Chile is the largest producer and exporter of blueberries in the southern hemisphere. During the 2006-2007 growing season, blueberry production increased in Chile as a result of an expansión of the planted área, reaching around 10,762 ha in 2007. Fungal diseases are of great importance in blueberry production; among them, Phytophthora root rot is a disease known worldwide as a major cause of death for highbush blueberry plants in the USA. Symptoms of Phytophthora root rot have been detected over the last four years in Chile. Nevertheless, the causal agents have not been previously described in Chile. This study aims to determine the pathogenicity of Phytophthora spp. isolated from highbush blueberry and to study cultivar susceptibility. The pathogenicity tests show that the species P. cinnamomi and P. citrophthora were the cause of crown and root rot of highbush blueberry. Significant differences in plant height, shoot growth stem diameter, and fresh weights of roots and aerial parts between inoculated and non-inoculated plants were observed. Blueberry cv. 'Toro' was the only cultivar resistant to P. cinnamomi, while both 'Elliot' and 'Toro' were resistant to P. citrophthora. Regardless of the Phytophthora species, cv. 'Biloxi' was the most affected. This is the first report of Phytophthora root rot in Chile and, to our knowledge, the first report of P. citrophthora affecting blueberry plants worldwide.
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Claims 10
Claim · model-written summary
P. cinnamomi caused crown and root rot of highbush blueberry.
- Taxon
- highbush blueberry
Vaccinium corymbosume0 - Interactor
- P. cinnamomi
Phytophthora cinnamomie0pathogen - Outcome
- crown and root rote0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the species P. cinnamomi and P. citrophthora were the cause of crown and root rot of highbush blueberry”
Claim · model-written summary
P. citrophthora caused crown and root rot of highbush blueberry.
- Taxon
- highbush blueberryVaccinium corymbosume0
- Interactor
- P. citrophthoraPhytophthora citrophthorae0pathogen
- Outcome
- crown and root rote0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the species P. cinnamomi and P. citrophthora were the cause of crown and root rot of highbush blueberry”
Claim · model-written summary
Inoculated and non-inoculated blueberry plants differed significantly in plant height, shoot growth and stem diameter.
- Taxon
- highbush blueberryVaccinium corymbosumt0
- Treatment
- inoculatede0
- Outcome
- plant height, shoot growth stem diametere0
- Comparator
- non-inoculated plantse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant differences in plant height, shoot growth stem diameter, and fresh weights of roots and aerial parts between inoculated and non-inoculated plants were observed.”
t0“highbush blueberry”
Claim · model-written summary
Inoculated and non-inoculated blueberry plants differed significantly in fresh weights of roots and aerial parts.
- Taxon
- highbush blueberryVaccinium corymbosumt0
- Treatment
- inoculatede0
- Outcome
- fresh weights of roots and aerial partse0
- Comparator
- non-inoculated plantse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant differences in plant height, shoot growth stem diameter, and fresh weights of roots and aerial parts between inoculated and non-inoculated plants were observed.”
t0“highbush blueberry”
Claim · model-written summary
Blueberry cv. 'Toro' was resistant to P. cinnamomi.
- Taxon
- Blueberrye0
- Material
- 'Toro'e0
- Interactor
- P. cinnamomiPhytophthora cinnamomie0pathogen
- Outcome
- resistante0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Blueberry cv. 'Toro' was the only cultivar resistant to P. cinnamomi”
Claim · model-written summary
Blueberry cv. 'Elliot' was resistant to P. citrophthora.
- Taxon
- highbush blueberryVaccinium corymbosumt0
- Material
- 'Elliot'e0
- Interactor
- P. citrophthoraPhytophthora citrophthorae0pathogen
- Outcome
- resistante0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both 'Elliot' and 'Toro' were resistant to P. citrophthora”
t0“highbush blueberry”
Claim · model-written summary
Blueberry cv. 'Toro' was resistant to P. citrophthora.
- Taxon
- highbush blueberryVaccinium corymbosumt0
- Material
- 'Toro'e0
- Interactor
- P. citrophthoraPhytophthora citrophthorae0pathogen
- Outcome
- resistante0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both 'Elliot' and 'Toro' were resistant to P. citrophthora”
t0“highbush blueberry”
Claim · model-written summary
Blueberry cv. 'Biloxi' was the most affected by Phytophthora regardless of species.
- Taxon
- highbush blueberryVaccinium corymbosumt0
- Material
- 'Biloxi'e0
- Interactor
- Phytophthora
Phytophthorae0pathogen - Outcome
- most affectede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regardless of the Phytophthora species, cv. 'Biloxi' was the most affected.”
t0“highbush blueberry”
Claim · model-written summary
Phytophthora root rot was reported in Chile for the first time.
- Taxon
- highbush blueberryVaccinium corymbosumt0
- Interactor
- PhytophthoraPhytophthorae0pathogen
- Outcome
- Phytophthora root rote0
- Setting
- Chilee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the first report of Phytophthora root rot in Chile”
t0“highbush blueberry”
Claim · model-written summary
P. citrophthora was reported affecting blueberry plants worldwide for the first time.
- Taxon
- blueberrye0
- Interactor
- P. citrophthoraPhytophthora citrophthorae0pathogen
- Outcome
- affecting blueberry plantse0
Not reportedDirection
Verbatim
e0“the first report of P. citrophthora affecting blueberry plants worldwide”