Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community
The relationship between plant carbon economy and drought responses of co-occurring woody species can be assessed by comparing carbohydrate (C) dynamics following drought and rain periods, relating these dynamics to species' functional traits. We studied nine woody species coexisting in a continenta...
| Authors: | ; ; ; ; ; ; |
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| Format: | Article |
| Publication date: | 2018 |
| Country: | España |
| Institution: | Universitat Autònoma de Barcelona |
| Repository: | Dipòsit Digital de Documents de la UAB |
| Language: | English |
| OAI Identifier: | oai:ddd.uab.cat:203577 |
| Online Access: | https://ddd.uab.cat/record/203577 https://dx.doi.org/urn:doi:10.1093/aob/mcy039 |
| Access Level: | Open access |
| Keyword: | Climate change Canopy dieback Die-off Drought Mediterranean Non-structural carbohydrates Shrubland Plant functional traits Soluble sugars Wood density |
| _version_ | 1878729313379942400 |
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| author | Lloret, Francisco|||0000-0002-9836-4069 |
| author2 | Sapes, Gerard|||0000-0002-6017-2053 Rosas, Teresa|||0000-0002-8734-9752 Galiano, Lucía|||0000-0003-0123-1882 Saura Mas, Sandra|||0000-0001-8539-427X Sala, Anna Martínez Vilalta, Jordi|||0000-0002-2332-7298 |
| author2_role | author author author author author author |
| author_browse | Galiano, Lucía|||0000-0003-0123-1882 Lloret, Francisco|||0000-0002-9836-4069 Martínez Vilalta, Jordi|||0000-0002-2332-7298 Rosas, Teresa|||0000-0002-8734-9752 Sala, Anna Sapes, Gerard|||0000-0002-6017-2053 Saura Mas, Sandra|||0000-0001-8539-427X |
| author_facet | Lloret, Francisco|||0000-0002-9836-4069 Sapes, Gerard|||0000-0002-6017-2053 Rosas, Teresa|||0000-0002-8734-9752 Galiano, Lucía|||0000-0003-0123-1882 Saura Mas, Sandra|||0000-0001-8539-427X Sala, Anna Martínez Vilalta, Jordi|||0000-0002-2332-7298 |
| author_role | author |
| collection | Dipòsit Digital de Documents de la UAB |
| description | The relationship between plant carbon economy and drought responses of co-occurring woody species can be assessed by comparing carbohydrate (C) dynamics following drought and rain periods, relating these dynamics to species' functional traits. We studied nine woody species coexisting in a continental Mediterranean shrubland that experienced severe drought effects followed by rain. During drought, NSC concentrations were overall lower in stems and roots of plants experiencing leaf loss, while SS decreases were smaller. Roots had higher NSC concentrations than stems. After the rain, NSC concentrations continued to decrease, while SS increased. Green foliage recovered after rain, particularly in plants previously experiencing higher leaf loss, independently of NSC concentrations during drought. Species with lower WD tended to have more SS during drought and lower SS increases after rain. In low-WD species, plants with severe leaf loss had lower NSC relative to undefoliated ones. No significant relationship was found between H or SLA and C content or dynamics. Our community-level study reveals that, while responses were species-specific, C stocks overall diminished in plants affected by prolonged drought and did not increase after a pulse of seasonal rain. Dynamics were faster for SS than NSC. We found limited depletion of SS, consistent with their role in basal metabolic, transport and signalling functions. In a scenario of increased drought under climate change, NSC stocks in woody plants are expected to decrease differentially in coexisting species, with potential implications for their adaptive abilities and community dynamics. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_057e18cef262db8a6c968eb094e31bfe |
| institution | Universitat Autònoma de Barcelona |
| instname_str | Universitat Autònoma de Barcelona |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:ddd.uab.cat:203577 |
| publishDate | 2018 |
| publishDateSort | 2018 |
| reponame_str | Dipòsit Digital de Documents de la UAB |
| spelling | Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community Lloret, Francisco|||0000-0002-9836-4069 Sapes, Gerard|||0000-0002-6017-2053 Rosas, Teresa|||0000-0002-8734-9752 Galiano, Lucía|||0000-0003-0123-1882 Saura Mas, Sandra|||0000-0001-8539-427X Sala, Anna Martínez Vilalta, Jordi|||0000-0002-2332-7298 Climate change Canopy dieback Die-off Drought Mediterranean Non-structural carbohydrates Shrubland Plant functional traits Soluble sugars Wood density The relationship between plant carbon economy and drought responses of co-occurring woody species can be assessed by comparing carbohydrate (C) dynamics following drought and rain periods, relating these dynamics to species' functional traits. We studied nine woody species coexisting in a continental Mediterranean shrubland that experienced severe drought effects followed by rain. During drought, NSC concentrations were overall lower in stems and roots of plants experiencing leaf loss, while SS decreases were smaller. Roots had higher NSC concentrations than stems. After the rain, NSC concentrations continued to decrease, while SS increased. Green foliage recovered after rain, particularly in plants previously experiencing higher leaf loss, independently of NSC concentrations during drought. Species with lower WD tended to have more SS during drought and lower SS increases after rain. In low-WD species, plants with severe leaf loss had lower NSC relative to undefoliated ones. No significant relationship was found between H or SLA and C content or dynamics. Our community-level study reveals that, while responses were species-specific, C stocks overall diminished in plants affected by prolonged drought and did not increase after a pulse of seasonal rain. Dynamics were faster for SS than NSC. We found limited depletion of SS, consistent with their role in basal metabolic, transport and signalling functions. In a scenario of increased drought under climate change, NSC stocks in woody plants are expected to decrease differentially in coexisting species, with potential implications for their adaptive abilities and community dynamics. https://ddd.uab.cat/record/203577 https://dx.doi.org/urn:doi:10.1093/aob/mcy039 |
| spellingShingle | Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community Lloret, Francisco|||0000-0002-9836-4069 Climate change Canopy dieback Die-off Drought Mediterranean Non-structural carbohydrates Shrubland Plant functional traits Soluble sugars Wood density |
| title | Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community |
| title_full | Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community |
| title_fullStr | Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community |
| title_full_unstemmed | Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community |
| title_short | Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community |
| title_sort | Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community |
| topic | Climate change Canopy dieback Die-off Drought Mediterranean Non-structural carbohydrates Shrubland Plant functional traits Soluble sugars Wood density |
| topic_facet | Climate change Canopy dieback Die-off Drought Mediterranean Non-structural carbohydrates Shrubland Plant functional traits Soluble sugars Wood density |
| url | https://ddd.uab.cat/record/203577 https://dx.doi.org/urn:doi:10.1093/aob/mcy039 |