Plant-soil feedbacks persist following tree death, reducing survival and growth of Populus tremuloides seedlings.
| Title: | Plant-soil feedbacks persist following tree death, reducing survival and growth of Populus tremuloides seedlings. |
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| Authors: | Bennett, Jonathan A.1 (AUTHOR) jon.bennett@usask.ca, Franklin, James2 (AUTHOR), Karst, Justine2 (AUTHOR) |
| Source: | Plant & Soil. Apr2023, Vol. 485 Issue 1/2, p103-115. 13p. 4 Graphs. |
| Subject Terms: | *POPULUS tremuloides, *WHITE spruce, *SEEDLINGS, *ASPEN (Trees), *TREES, *DEAD trees |
| Abstract: | Purpose: Most plants interact with soil biota that positively or negatively affect seedling performance. These plant-soil feedbacks (PSFs) can strongly affect recruitment, potentially for years after death. We tested whether PSFs persisted following death for Populus tremuloides Michx. (aspen) and if these effects were environment dependent using soils collected from live and dead aspen and heterospecific Picea glauca (Moench) Voss in 24 stands across two ecosystems. Methods: We conducted a greenhouse experiment using soils from 24 aspen stands. At each stand, we collected soil from three trees of each tree type and used live and sterilized versions of these soils to inoculate aspen seedlings. We then recorded mortality and growth of the seedlings over three months. Results: Live inocula reduced aspen survival and growth relative to sterilized inocula, suggesting that pathogens drive PSF. Plant responses to live and dead aspen inocula were correlated across environments; however, responses to aspen and heterospecific Picea inocula were uncorrelated, suggesting that specialized pathogens may drive PSF. Conclusions: Pathogen-driven negative PSFs can persist for multiple years irrespective of the environment, potentially limiting the regeneration of aspen stands following dieback. Persistent PSFs thus have potential to cause lagged effects on population and community dynamics. [ABSTRACT FROM AUTHOR] |
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| Items | – Name: Title Label: Title Group: Ti Data: Plant-soil feedbacks persist following tree death, reducing survival and growth of Populus tremuloides seedlings. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Bennett%2C+Jonathan+A%2E%22">Bennett, Jonathan A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> jon.bennett@usask.ca</i><br /><searchLink fieldCode="AR" term="%22Franklin%2C+James%22">Franklin, James</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Karst%2C+Justine%22">Karst, Justine</searchLink><relatesTo>2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Plant+%26+Soil%22">Plant & Soil</searchLink>. Apr2023, Vol. 485 Issue 1/2, p103-115. 13p. 4 Graphs. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22POPULUS+tremuloides%22">POPULUS tremuloides</searchLink><br />*<searchLink fieldCode="DE" term="%22WHITE+spruce%22">WHITE spruce</searchLink><br />*<searchLink fieldCode="DE" term="%22SEEDLINGS%22">SEEDLINGS</searchLink><br />*<searchLink fieldCode="DE" term="%22ASPEN+%28Trees%29%22">ASPEN (Trees)</searchLink><br />*<searchLink fieldCode="DE" term="%22TREES%22">TREES</searchLink><br />*<searchLink fieldCode="DE" term="%22DEAD+trees%22">DEAD trees</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Purpose: Most plants interact with soil biota that positively or negatively affect seedling performance. These plant-soil feedbacks (PSFs) can strongly affect recruitment, potentially for years after death. We tested whether PSFs persisted following death for Populus tremuloides Michx. (aspen) and if these effects were environment dependent using soils collected from live and dead aspen and heterospecific Picea glauca (Moench) Voss in 24 stands across two ecosystems. Methods: We conducted a greenhouse experiment using soils from 24 aspen stands. At each stand, we collected soil from three trees of each tree type and used live and sterilized versions of these soils to inoculate aspen seedlings. We then recorded mortality and growth of the seedlings over three months. Results: Live inocula reduced aspen survival and growth relative to sterilized inocula, suggesting that pathogens drive PSF. Plant responses to live and dead aspen inocula were correlated across environments; however, responses to aspen and heterospecific Picea inocula were uncorrelated, suggesting that specialized pathogens may drive PSF. Conclusions: Pathogen-driven negative PSFs can persist for multiple years irrespective of the environment, potentially limiting the regeneration of aspen stands following dieback. Persistent PSFs thus have potential to cause lagged effects on population and community dynamics. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Plant & Soil is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s11104-022-05645-5 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 103 Subjects: – SubjectFull: POPULUS tremuloides Type: general – SubjectFull: WHITE spruce Type: general – SubjectFull: SEEDLINGS Type: general – SubjectFull: ASPEN (Trees) Type: general – SubjectFull: TREES Type: general – SubjectFull: DEAD trees Type: general Titles: – TitleFull: Plant-soil feedbacks persist following tree death, reducing survival and growth of Populus tremuloides seedlings. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Bennett, Jonathan A. – PersonEntity: Name: NameFull: Franklin, James – PersonEntity: Name: NameFull: Karst, Justine IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2023 Type: published Y: 2023 Identifiers: – Type: issn-print Value: 0032079X Numbering: – Type: volume Value: 485 – Type: issue Value: 1/2 Titles: – TitleFull: Plant & Soil Type: main |
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