The dynamics of recovery and growth: how defoliation affects stored resources.
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| Title: | The dynamics of recovery and growth: how defoliation affects stored resources. |
|---|---|
| Authors: | Atkinson, R. R. L.1 r.r.atkinson@sheffield.ac.uk, Burrell, M. M.1, Rose, K. E.1, Osborne, C. P.1, Rees, M.1 |
| Source: | Proceedings of the Royal Society B: Biological Sciences. 5/22/2014, Vol. 281 Issue 1783, p1-7. 7p. |
| Subjects: | Defoliation, Plant roots, Plant species, Plant growth, Plant variation, Carbohydrate analysis |
| Abstract: | Growth rate varies widely among species and the trade-off between growth rate and storage or maintenance traits is a principal axis of variation between species. Many plant species have substantial root stores, but very little is known about how growth rate modifies responses of these stores to defoliation and other stresses. Species with different growth rates are predicted to respond in distinct ways, because of variation in the pre-defoliation allocation to storage. Here, we quantified the dynamics of stored carbohydrates in seven species with varying growth rate, following defoliation in a pot experiment. For faster growing species, there was significant reduction in carbohydrate concentration following defoliation, followed by relatively fast recovery, whereas for slower growing species, carbohydrate concentration levels remained relatively invariant across treatments. Results for total carbohydrates mirrored those for concentration, but were not as significant. Our findings were consistent with the idea that faster growing species respond more rapidly than slower growers to defoliation, through changes in carbohydrate pool concentrations. Growth rate as an indicator of life-history and ecological strategy may therefore be key to understanding post-defoliation recovery and storage strategies. [ABSTRACT FROM AUTHOR] |
| Copyright of Proceedings of the Royal Society B: Biological Sciences is the property of Royal Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. 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. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 108335050 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: The dynamics of recovery and growth: how defoliation affects stored resources. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Atkinson%2C+R%2E+R%2E+L%2E%22">Atkinson, R. R. L.</searchLink><relatesTo>1</relatesTo><i> r.r.atkinson@sheffield.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Burrell%2C+M%2E+M%2E%22">Burrell, M. M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rose%2C+K%2E+E%2E%22">Rose, K. E.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Osborne%2C+C%2E+P%2E%22">Osborne, C. P.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rees%2C+M%2E%22">Rees, M.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Proceedings+of+the+Royal+Society+B%3A+Biological+Sciences%22">Proceedings of the Royal Society B: Biological Sciences</searchLink>. 5/22/2014, Vol. 281 Issue 1783, p1-7. 7p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Defoliation%22">Defoliation</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+roots%22">Plant roots</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+species%22">Plant species</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+growth%22">Plant growth</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+variation%22">Plant variation</searchLink><br /><searchLink fieldCode="DE" term="%22Carbohydrate+analysis%22">Carbohydrate analysis</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Growth rate varies widely among species and the trade-off between growth rate and storage or maintenance traits is a principal axis of variation between species. Many plant species have substantial root stores, but very little is known about how growth rate modifies responses of these stores to defoliation and other stresses. Species with different growth rates are predicted to respond in distinct ways, because of variation in the pre-defoliation allocation to storage. Here, we quantified the dynamics of stored carbohydrates in seven species with varying growth rate, following defoliation in a pot experiment. For faster growing species, there was significant reduction in carbohydrate concentration following defoliation, followed by relatively fast recovery, whereas for slower growing species, carbohydrate concentration levels remained relatively invariant across treatments. Results for total carbohydrates mirrored those for concentration, but were not as significant. Our findings were consistent with the idea that faster growing species respond more rapidly than slower growers to defoliation, through changes in carbohydrate pool concentrations. Growth rate as an indicator of life-history and ecological strategy may therefore be key to understanding post-defoliation recovery and storage strategies. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Proceedings of the Royal Society B: Biological Sciences is the property of Royal Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. 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: 10.1098/rspb.2013.3355 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 7 StartPage: 1 Subjects: – SubjectFull: Defoliation Type: general – SubjectFull: Plant roots Type: general – SubjectFull: Plant species Type: general – SubjectFull: Plant growth Type: general – SubjectFull: Plant variation Type: general – SubjectFull: Carbohydrate analysis Type: general Titles: – TitleFull: The dynamics of recovery and growth: how defoliation affects stored resources. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Atkinson, R. R. L. – PersonEntity: Name: NameFull: Burrell, M. M. – PersonEntity: Name: NameFull: Rose, K. E. – PersonEntity: Name: NameFull: Osborne, C. P. – PersonEntity: Name: NameFull: Rees, M. IsPartOfRelationships: – BibEntity: Dates: – D: 22 M: 05 Text: 5/22/2014 Type: published Y: 2014 Identifiers: – Type: issn-print Value: 09628452 Numbering: – Type: volume Value: 281 – Type: issue Value: 1783 Titles: – TitleFull: Proceedings of the Royal Society B: Biological Sciences Type: main |
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