Timing of mutualist arrival has a greater effect on Pinus muricata seedling growth than interspecific competition
Abstract
Abstract Interactions with symbiotic microbes, such as mycorrhizal fungi, have the potential to greatly influence plant growth, but it is unclear whether field variation in symbiont availability is common and, if so, sufficient to influence interspecific plant competition. In a greenhouse experiment using natural field soils, I varied the timing of ectomycorrhizal inoculation and the presence of an arbuscular mycorrhizal plant competitor, and measured their effects on pine seedling growth. I found that ectomycorrhizal colonization was absent in some field soils, and that in soils without mycorrhizal inoculum, delayed arrival of ectomycorrhizal spores progressively reduced pine seedling growth and favoured growth of the competitor. Competition had significant negative effects on pine seedling growth, but the competition effect was much smaller than the effect of delayed mutualist arrival. Synthesis . The importance of mycorrhizal spore arrival time on pine growth suggests that plants may experience mutualist limitation more frequently than previously expected, and the relative magnitude of seedling responses to mycorrhizal fungi and competing plants show that in some systems mutualism is likely of equal or greater importance compared with interspecific competition in affecting plant community assembly.
- Publication Date:
- Research Org.:
- Stanford Univ., CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Biological and Environmental Research (BER)
- OSTI Identifier:
- 1844223
- Alternate Identifier(s):
- OSTI ID: 1420332
- Grant/Contract Number:
- SC0016097
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Ecology
- Additional Journal Information:
- Journal Volume: 106; Journal Issue: 2; Related Information: Supplemental data from Data Dryad; Journal ID: ISSN 0022-0477
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 59 BASIC BIOLOGICAL SCIENCES
Citation Formats
Peay, Kabir G. Timing of mutualist arrival has a greater effect on Pinus muricata seedling growth than interspecific competition. United States: N. p., 2018.
Web. doi:10.1111/1365-2745.12915.
Peay, Kabir G. Timing of mutualist arrival has a greater effect on Pinus muricata seedling growth than interspecific competition. United States. https://doi.org/10.1111/1365-2745.12915
Peay, Kabir G. Tue .
"Timing of mutualist arrival has a greater effect on Pinus muricata seedling growth than interspecific competition". United States. https://doi.org/10.1111/1365-2745.12915. https://www.osti.gov/servlets/purl/1844223.
@article{osti_1844223,
title = {Timing of mutualist arrival has a greater effect on Pinus muricata seedling growth than interspecific competition},
author = {Peay, Kabir G.},
abstractNote = {Abstract Interactions with symbiotic microbes, such as mycorrhizal fungi, have the potential to greatly influence plant growth, but it is unclear whether field variation in symbiont availability is common and, if so, sufficient to influence interspecific plant competition. In a greenhouse experiment using natural field soils, I varied the timing of ectomycorrhizal inoculation and the presence of an arbuscular mycorrhizal plant competitor, and measured their effects on pine seedling growth. I found that ectomycorrhizal colonization was absent in some field soils, and that in soils without mycorrhizal inoculum, delayed arrival of ectomycorrhizal spores progressively reduced pine seedling growth and favoured growth of the competitor. Competition had significant negative effects on pine seedling growth, but the competition effect was much smaller than the effect of delayed mutualist arrival. Synthesis . The importance of mycorrhizal spore arrival time on pine growth suggests that plants may experience mutualist limitation more frequently than previously expected, and the relative magnitude of seedling responses to mycorrhizal fungi and competing plants show that in some systems mutualism is likely of equal or greater importance compared with interspecific competition in affecting plant community assembly.},
doi = {10.1111/1365-2745.12915},
journal = {Journal of Ecology},
number = 2,
volume = 106,
place = {United States},
year = {Tue Feb 13 00:00:00 EST 2018},
month = {Tue Feb 13 00:00:00 EST 2018}
}
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Data from: Timing of mutualist arrival has a greater effect on Pinus muricata seedling growth than interspecific competition
dataset, January 2018
- Peay, Kabir G.
- Dryad
Data from: Timing of mutualist arrival has a greater effect on Pinus muricata seedling growth than interspecific competition
dataset, January 2018
- Peay, Kabir G.
- Dryad
Works referencing / citing this record:
Data from: Timing of mutualist arrival has a greater effect on Pinus muricata seedling growth than interspecific competition
dataset, January 2018
- Peay, Kabir G.
- Dryad