Can Phytophthora quercina have a negative impact on mature pedunculate oaks under field conditions?
(2006) In Annals of Forest Science 63(7). p.661-672- Abstract
- Ten oak stands in southern Sweden were investigated to evaluate the impact of the root pathogen Phytophthora quercina on mature oaks under field conditions. Phytophthora quercina was present in five of the stands, while the other five stands were used as controls to verify the effect of the pathogen. In each stand, a healthy, a moderately declining and a severely declining tree were sampled. Fine-root length and nutrient status of each tree were analyzed, and the chemistry of the soil surrounding each tree was determined. The results showed that P. quercina can cause substantial reductions in the fine-root length of mature trees under natural conditions. The impact of the pathogen varied depending on tree vitality and season, being most... (More)
- Ten oak stands in southern Sweden were investigated to evaluate the impact of the root pathogen Phytophthora quercina on mature oaks under field conditions. Phytophthora quercina was present in five of the stands, while the other five stands were used as controls to verify the effect of the pathogen. In each stand, a healthy, a moderately declining and a severely declining tree were sampled. Fine-root length and nutrient status of each tree were analyzed, and the chemistry of the soil surrounding each tree was determined. The results showed that P. quercina can cause substantial reductions in the fine-root length of mature trees under natural conditions. The impact of the pathogen varied depending on tree vitality and season, being most pronounced for declining trees after an unusually dry summer. Despite the significant reduction in live fine-root length of declining trees in Phytophthora-infested stands, no consistent effects were found on the nutrient status of trees. Based on the significant impact of the pathogen on the fine-root systems of declining trees, we suggest that P. quercina contribute to oak decline in southern Sweden at the sites where it is present. No explanation is currently available for the decline of trees in non-infested stands, but the lack of symptoms of root damage indicate, together with the extensive root growth of declining trees, that root pathogens are not involved in the decline at these sites. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/162801
- author
- Jönsson Belyazid, Ulrika LU and Rosengren, Ulrika LU
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Annals of Forest Science
- volume
- 63
- issue
- 7
- pages
- 661 - 672
- publisher
- Springer
- external identifiers
-
- wos:000241381500002
- scopus:33751535847
- ISSN
- 1286-4560
- DOI
- 10.1051/forest:2006047
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Plant Ecology and Systematics (Closed 2011) (011004000)
- id
- 0356c0a8-2b41-4cdb-8aab-a4320752ed7f (old id 162801)
- date added to LUP
- 2016-04-01 11:45:22
- date last changed
- 2022-01-26 17:45:34
@article{0356c0a8-2b41-4cdb-8aab-a4320752ed7f,
abstract = {{Ten oak stands in southern Sweden were investigated to evaluate the impact of the root pathogen Phytophthora quercina on mature oaks under field conditions. Phytophthora quercina was present in five of the stands, while the other five stands were used as controls to verify the effect of the pathogen. In each stand, a healthy, a moderately declining and a severely declining tree were sampled. Fine-root length and nutrient status of each tree were analyzed, and the chemistry of the soil surrounding each tree was determined. The results showed that P. quercina can cause substantial reductions in the fine-root length of mature trees under natural conditions. The impact of the pathogen varied depending on tree vitality and season, being most pronounced for declining trees after an unusually dry summer. Despite the significant reduction in live fine-root length of declining trees in Phytophthora-infested stands, no consistent effects were found on the nutrient status of trees. Based on the significant impact of the pathogen on the fine-root systems of declining trees, we suggest that P. quercina contribute to oak decline in southern Sweden at the sites where it is present. No explanation is currently available for the decline of trees in non-infested stands, but the lack of symptoms of root damage indicate, together with the extensive root growth of declining trees, that root pathogens are not involved in the decline at these sites.}},
author = {{Jönsson Belyazid, Ulrika and Rosengren, Ulrika}},
issn = {{1286-4560}},
language = {{eng}},
number = {{7}},
pages = {{661--672}},
publisher = {{Springer}},
series = {{Annals of Forest Science}},
title = {{Can Phytophthora quercina have a negative impact on mature pedunculate oaks under field conditions?}},
url = {{http://dx.doi.org/10.1051/forest:2006047}},
doi = {{10.1051/forest:2006047}},
volume = {{63}},
year = {{2006}},
}