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| DOI: | 10.1111/1365-2745.13515 |
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| Web URL(s): | https://besjournals.onlinelibrary.wiley.com/doi/full/10.1111/1365-2745.13515
Last checked: 04/16/2021
Access conditions: Item is within a limited-access website
https://besjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/1365-2745.13515
Last checked: 04/16/2021
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Kendig, Amy E.;
Spear, Erin R.;
Daws, S. Caroline;
Flory, S. Luke;
Mordecai, Erin A. |
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| Author Affiliation: | Kendig and Flory: Agronomy Department, University of Florida, Gainesville, FL; Spear: Smithsonian Tropical Research Institute, Panama City, Panama; Daws and Mordecai: Department of Biology, Stanford University, Stanford, CA |
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| Title: | Native perennial and non-native annual grasses shape pathogen community composition and disease severity in a California grassland |
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| Source: | Journal of Ecology. Vol. 109, No. 2, February 2021, p. 900-912. |
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| Publishing Information: | Oxford, England, United Kingdom: Blackwell Scientific Publications |
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| # of Pages: | 13 |
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| Related Web URL: | https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2745.13515
Last checked: 04/16/2021
Notes: Abstract only |
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| Keywords: | Author-Supplied Keywords: Disease severity; Fungi; Grassland; Host competence; Life history; Non-native species; Pathogen community; Plant-pathogen interactions
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| Abstract/Contents: | "The densities of highly competent plant hosts (i.e. those that are susceptible to and successfully transmit a pathogen) may shape pathogen community composition and disease severity, altering disease risk and impacts. Life history and evolutionary history can influence host competence; longer lived species tend to be better defended than shorter lived species and pathogens adapt to infect species with which they have longer evolutionary histories. It is unclear, however, how the densities of species that differ in competence due to life and evolutionary histories affect plant pathogen community composition and disease severity. We examined foliar fungal pathogens of two host groups in a California grassland: native perennial and non-native annual grasses. We first characterized pathogen community composition and disease severity of the two host groups to approximate differences in competence. We then used observational and manipulated gradients of native perennial and non-native annual grass densities to assess the effects of each host group on pathogen community composition and disease severity in 1-m2 plots. Native perennial and non-native annual grasses hosted distinct pathogen communities but shared generalist pathogens. Native perennial grasses experienced 26% higher disease severity than non-native annuals. Only the observational gradient of native perennial grass density affected disease severity; there were no other significant relationships between host group density and either disease severity or pathogen community composition. Synthesis. The life and evolutionary histories of grasses likely influence their competence for different pathogen species, exemplified by distinct pathogen communities and differences in disease severity. However, there was limited evidence that the density of either host group affected pathogen community composition or disease severity. Therefore, competence for different pathogens likely shapes pathogen community composition and disease severity but may not interact with host density to alter disease risk and impacts at small scales." |
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| Language: | English |
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| References: | 72 |
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| Note: | Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kendig, A. E., E. R. Spear, S. C. Daws, S. L. Flory, and E. A. Mordecai. 2021. Native perennial and non-native annual grasses shape pathogen community composition and disease severity in a California grassland. J. Ecol. 109(2):p. 900-912. |
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| DOI: 10.1111/1365-2745.13515 |
| Web URL(s):
https://besjournals.onlinelibrary.wiley.com/doi/full/10.1111/1365-2745.13515
Last checked: 04/16/2021
Access conditions: Item is within a limited-access website
https://besjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/1365-2745.13515
Last checked: 04/16/2021
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2218287 |
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