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https://hdl.handle.net/2440/137388
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Type: | Journal article |
Title: | Local and non‐local soil microbiota impede germination of the endangered Acacia whibleyana |
Author: | Hodgson, R.J. Liddicoat, C. Cando‐Dumancela, C. Blyth, C. Watson, C.D. Breed, M.F. |
Citation: | Austral Ecology: a journal of ecology in the Southern Hemisphere, 2023; 48(2):339-358 |
Publisher: | Wiley |
Issue Date: | 2023 |
ISSN: | 1442-9985 1442-9993 |
Statement of Responsibility: | Riley J. Hodgson, Craig Liddicoat, Christian Cando-Dumancela, Colette Blyth, Carl D. Watson, Martin F. Breed |
Abstract: | Inoculating soils with microbiota that benefit the germination and growth of endangered plant species could improve their revegetation success and conservation status. While ecosystem degradation can disrupt beneficial plant–soil- microbial interactions, the prospect of reintroducing native plant-associated soil microbiota during revegetation could help to restore these important ecological links and assist the recovery of key species. We address the role of soil microbiota on germination and seedling fitness traits of the endangered Acacia whibleyana (Fabaceae) through a 17-week greenhouse experiment. Soil treatments included local soil, potting medium, three inoculation ratios (3:1, 1:1, 1:3 local soil: potting medium), sterilized local soil and sterilized potting medium. Soil sterilization reduced the time to first seed germination, indicating a role of soil microbiota on germination. The 1:1 whole soil inoculation saw reduced germination rates compared with either pure local or potting-medium treatments, and the slower germination times observed in live soils confirmed the strong influence of soil microbiota on the timing of germination. We report evidence that poor inoculation strategies can adversely impact germination of this endangered Acacia. Furthermore, our findings suggest that careful assessment of microbiota associated with A. whibleyana could help to improve germination and recruitment during its revegetation and conservation management. |
Keywords: | germination; plant conservation; plant–soil feedbacks; soil inoculation; soil microbiota |
Description: | Published April 2023 |
Rights: | © 2023 Ecological Society of Australia |
DOI: | 10.1111/aec.13275 |
Grant ID: | http://purl.org/au-research/grants/arc/LP190100051 http://purl.org/au-research/grants/arc/LP190100484 |
Published version: | http://dx.doi.org/10.1111/aec.13275 |
Appears in Collections: | Public Health publications |
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