onr:"swepub:oai:DiVA.org:su-195159"
Search: onr:"swepub:oai:DiVA.org:su-195159" > Direct and insect-m...
- 1 of 1
- Previous record
- Next record
- To hitlist
Direct and insect-mediated effects of pathogens on plant growth and fitness
-
- van Dijk, Laura J. A (author)
- Stockholms universitet,Institutionen för ekologi, miljö och botanik
-
- Ehrlén, Johan (author)
- Stockholms universitet,Institutionen för ekologi, miljö och botanik
-
- Ayco J. M., Tack (author)
- Stockholms universitet,Institutionen för ekologi, miljö och botanik
- (creator_code:org_t)
- 2021-06-07
- 2021
- English.
- In: Journal of Ecology. - : British Ecological Society. - 0022-0477 .- 1365-2745. ; 109:7, s. 2769-2779
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- 1. Plants are attacked by a large diversity of pathogens. These pathogens can affectplant growth and fitness directly but also indirectly by inducing changes in the host plant that affect interactions with beneficial and antagonistic insects. Yet, we lack insights into the relative importance of direct and indirect effects of pathogens on their host plants, and how these effects differ among pathogen species.2. In this study, we examined four fungal pathogens on the wood anemone Anemone nemorosa. We used field observations to record the impacts of each pathogen species on plant growth and fitness throughout the season, and experimental hand pollination and insect feeding trials to assess whether fitness impacts were mediated by pathogen-induced changes in plant–pollinator and plant–herbivore interactions.3. Three out of four pathogens negatively affected plant size, and pathogens differed strongly in their effect on plant architecture. Infected plants had lower fitness, but this effect was not mediated by pollinators or herbivores. Even so, two out of four pathogens reduced herbivory on anemones in the field, and we found negative effects of pathogen infection on herbivore preference and performance in feeding trials.4. Synthesis. Our results are of broader significance in two main respects. First, we demonstrated that pathogens negatively affected plant growth and fitness, and that the magnitude of these effects varied among pathogen species, suggesting that pathogens constitute important selective agents that differ in strength. Second, direct effects on plant fitness were more important than effects mediatedby beneficial and antagonistic insects. In addition, although we did not detect insect-mediated effects on plant fitness, the negative effects of some pathogens on herbivore preference and performance indicate that pathogen communities influence the distribution and abundance of herbivores.
Subject headings
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Keyword
- Anemone nemorosa
- insect herbivores
- plant performance
- plant–pathogen–insect interactions
- pollinators
- rhizomatous clonal plants
- systemic fungal pathogens
- ekologi och evolution
- Ecology and Evolution
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Journal of Ecology (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- van Dijk, Laura ...
- Ehrlén, Johan
- Ayco J. M., Tack
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Biological Scien ...
- Articles in the publication
- Journal of Ecolo ...
- By the university
- Stockholm University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
