Mycorrhizal fungi affect growth of an endemic bunchgrass in pine savannas
Abstract Planting or sowing native perennial bunchgrasses is a common restoration practice in grasslands disturbed by agricultural or forestry operations. Bunchgrasses provide fine fuel loads for reinstating fire regimes that promote native plant community development. Wiregrass (Aristida beyrichian...
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| Format: | Article |
| Language: | English |
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Wiley
2025-04-01
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| Series: | Ecological Solutions and Evidence |
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| Online Access: | https://doi.org/10.1002/2688-8319.70026 |
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| author | Adele Kimball Debriana Love Victoria Lopez‐Scarim April Zee Raelene M. Crandall Elena Karlsen‐Ayala Carolina Baruzzi Abid Al‐Agely Jennifer M. Fill |
| author_facet | Adele Kimball Debriana Love Victoria Lopez‐Scarim April Zee Raelene M. Crandall Elena Karlsen‐Ayala Carolina Baruzzi Abid Al‐Agely Jennifer M. Fill |
| author_sort | Adele Kimball |
| collection | DOAJ |
| description | Abstract Planting or sowing native perennial bunchgrasses is a common restoration practice in grasslands disturbed by agricultural or forestry operations. Bunchgrasses provide fine fuel loads for reinstating fire regimes that promote native plant community development. Wiregrass (Aristida beyrichiana) is a dominant bunchgrass used in the restoration of south‐eastern US pine savannas. Amending disturbed soils with native soils or inoculating them with mycorrhizal fungi are restoration practices used to enhance plant growth or establishment. It is unknown, however, whether these practices increase wiregrass biomass, which would promote fire spread and reinstatement of frequent fire regimes We grew wiregrass from seed in four treatments: (1) undisturbed soil from an undisturbed pine savanna (reference treatment), (2) soil disturbed by plantation forestry, (3) disturbed soil mixed with a small amount of undisturbed soil and (4) disturbed soil inoculated with commercial arbuscular mycorrhizal inoculum. After 6 months, we harvested plants and weighed above‐ and below‐ground biomass. We compared total biomass, soil spore counts and root colonization between treatments. Although the undisturbed and disturbed soils used in the experiment did not initially differ in nutrients or mycorrhizal inoculum potential, spore counts were significantly higher in the disturbed soils we collected. At the end of the experiment, total plant biomass (above‐ and below‐ground) was significantly lower in the undisturbed treatment than in all other treatments, which were not significantly different from each other. There were no significant differences in percent root colonization at the end of the experiment, but soil spore counts were significantly higher in the disturbed and commercially inoculated soils than in the undisturbed and mixed soils. Our results suggest that the mycorrhizal relationship might be enhanced in disturbed soils as arbuscular mycorrhizal fungi mobilize nutrients needed by wiregrass; alternatively, disturbed and commercially inoculated soils might harbour a different fungal community than native soils. Although plants had lower biomass in the undisturbed soils, this difference may disappear over time. Practical implication. If the goal of savanna restoration is to re‐establish fire regimes using wiregrass, inoculation is likely unnecessary. In contrast, inoculating the soil may support other objectives, such as increasing biodiversity or accelerating succession. |
| format | Article |
| id | doaj-art-860f5709c7c5429697e105debc169d3d |
| institution | DOAJ |
| issn | 2688-8319 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecological Solutions and Evidence |
| spelling | doaj-art-860f5709c7c5429697e105debc169d3d2025-08-20T02:43:53ZengWileyEcological Solutions and Evidence2688-83192025-04-0162n/an/a10.1002/2688-8319.70026Mycorrhizal fungi affect growth of an endemic bunchgrass in pine savannasAdele Kimball0Debriana Love1Victoria Lopez‐Scarim2April Zee3Raelene M. Crandall4Elena Karlsen‐Ayala5Carolina Baruzzi6Abid Al‐Agely7Jennifer M. Fill8School of Forest, Fisheries, and Geomatics Sciences University of Florida Gainesville Florida USASchool of Forest, Fisheries, and Geomatics Sciences University of Florida Gainesville Florida USASchool of Forest, Fisheries, and Geomatics Sciences University of Florida Gainesville Florida USASchool of Forest, Fisheries, and Geomatics Sciences University of Florida Gainesville Florida USASchool of Forest, Fisheries, and Geomatics Sciences University of Florida Gainesville Florida USAUSDA Forest Service Northern Research Station Hamden Connecticut USASchool of Forest, Fisheries, and Geomatics Sciences University of Florida Gainesville Florida USADepartment of Soil, Water, and Ecosystem Sciences University of Florida Gainesville Florida USASchool of Forest, Fisheries, and Geomatics Sciences University of Florida Gainesville Florida USAAbstract Planting or sowing native perennial bunchgrasses is a common restoration practice in grasslands disturbed by agricultural or forestry operations. Bunchgrasses provide fine fuel loads for reinstating fire regimes that promote native plant community development. Wiregrass (Aristida beyrichiana) is a dominant bunchgrass used in the restoration of south‐eastern US pine savannas. Amending disturbed soils with native soils or inoculating them with mycorrhizal fungi are restoration practices used to enhance plant growth or establishment. It is unknown, however, whether these practices increase wiregrass biomass, which would promote fire spread and reinstatement of frequent fire regimes We grew wiregrass from seed in four treatments: (1) undisturbed soil from an undisturbed pine savanna (reference treatment), (2) soil disturbed by plantation forestry, (3) disturbed soil mixed with a small amount of undisturbed soil and (4) disturbed soil inoculated with commercial arbuscular mycorrhizal inoculum. After 6 months, we harvested plants and weighed above‐ and below‐ground biomass. We compared total biomass, soil spore counts and root colonization between treatments. Although the undisturbed and disturbed soils used in the experiment did not initially differ in nutrients or mycorrhizal inoculum potential, spore counts were significantly higher in the disturbed soils we collected. At the end of the experiment, total plant biomass (above‐ and below‐ground) was significantly lower in the undisturbed treatment than in all other treatments, which were not significantly different from each other. There were no significant differences in percent root colonization at the end of the experiment, but soil spore counts were significantly higher in the disturbed and commercially inoculated soils than in the undisturbed and mixed soils. Our results suggest that the mycorrhizal relationship might be enhanced in disturbed soils as arbuscular mycorrhizal fungi mobilize nutrients needed by wiregrass; alternatively, disturbed and commercially inoculated soils might harbour a different fungal community than native soils. Although plants had lower biomass in the undisturbed soils, this difference may disappear over time. Practical implication. If the goal of savanna restoration is to re‐establish fire regimes using wiregrass, inoculation is likely unnecessary. In contrast, inoculating the soil may support other objectives, such as increasing biodiversity or accelerating succession.https://doi.org/10.1002/2688-8319.70026fungiinoculumpine savannarestoration |
| spellingShingle | Adele Kimball Debriana Love Victoria Lopez‐Scarim April Zee Raelene M. Crandall Elena Karlsen‐Ayala Carolina Baruzzi Abid Al‐Agely Jennifer M. Fill Mycorrhizal fungi affect growth of an endemic bunchgrass in pine savannas Ecological Solutions and Evidence fungi inoculum pine savanna restoration |
| title | Mycorrhizal fungi affect growth of an endemic bunchgrass in pine savannas |
| title_full | Mycorrhizal fungi affect growth of an endemic bunchgrass in pine savannas |
| title_fullStr | Mycorrhizal fungi affect growth of an endemic bunchgrass in pine savannas |
| title_full_unstemmed | Mycorrhizal fungi affect growth of an endemic bunchgrass in pine savannas |
| title_short | Mycorrhizal fungi affect growth of an endemic bunchgrass in pine savannas |
| title_sort | mycorrhizal fungi affect growth of an endemic bunchgrass in pine savannas |
| topic | fungi inoculum pine savanna restoration |
| url | https://doi.org/10.1002/2688-8319.70026 |
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