The effects of persistent drought and waterlogging on the dynamics of nonstructural carbohydrates of Robinia pseudoacacia L. seedlings in Northwest China
Abstract Background The nonstructural carbohydrates (NSCs) of plants are posited to be crucial traits for the resistance and resilience of plants to climate change-induced drought and flooding. However, the potential effects of persistent drought and waterlogging on the dynamics of the NSCs and the...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2019-04-01
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| Series: | Forest Ecosystems |
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| Online Access: | http://link.springer.com/article/10.1186/s40663-019-0181-3 |
| _version_ | 1828077412088283136 |
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| author | Bin Yang Changhui Peng Qiuan Zhu Xiaolu Zhou Weiguo Liu Min Duan Hui Wang Zhihao Liu Xinyi Guo Meng Wang |
| author_facet | Bin Yang Changhui Peng Qiuan Zhu Xiaolu Zhou Weiguo Liu Min Duan Hui Wang Zhihao Liu Xinyi Guo Meng Wang |
| author_sort | Bin Yang |
| collection | DOAJ |
| description | Abstract Background The nonstructural carbohydrates (NSCs) of plants are posited to be crucial traits for the resistance and resilience of plants to climate change-induced drought and flooding. However, the potential effects of persistent drought and waterlogging on the dynamics of the NSCs and the underlying mechanisms are still poorly understood. Methods We measured the NSCs concentrations and pool size, photosynthetic rate and biomass of Robinia pseudoacacia L. seedlings for both 2015 and 2016 under five soil water treatments: 3%, 8%, 17%, 24% and 34% soil water content, representing extreme drought (ED), moderate drought (MD), the control group (CG), field capacity (FC) and waterlogging (WL) stresses, respectively. We observed the relationship between the pool size of NSCs and the survival of seedlings under water stress (drought and waterlogging) for 30 days in greenhouse. Results Compared with CG, the net photosynthetic rate decreased 91%, 67%, 34% and 71%, and the biomass decreased by 37%, 15%, 16% and 33% under ED, MD, FC and WL, respectively. The total NSC (TNSC) concentration was significantly increased by 154% under ED after 10 days and sharply decreased by 50% under ED after 30 days. The concentrations of soluble sugars (SS) were significantly increased by 100% under MD after 10 days and sharply decreased by 60% under ED after 30 days. Compared with GC, the response of NSCs, photosynthetic rate and biomass under ED were more dramatic than that under WL. The pool sizes of fructose and sucrose were larger under ED and WL, but the maximum pool size of starch occurred under the CG. The depletion of NSCs was not observed under ED at the end of the experiments in both 2015 and 2016. Conclusions Our results indicate that the dynamics of NSCs is an important physiological feature of plant adaptation and resistance to drought and waterlogging. In addition, high sugars concentrations are beneficial for the plants during the short-term extreme drought and the longer term mild drought or waterlogging. |
| first_indexed | 2024-04-11T02:28:59Z |
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| id | doaj.art-43ed3db20f7b4ce8a738b096bb6daf39 |
| institution | Directory Open Access Journal |
| issn | 2197-5620 |
| language | English |
| last_indexed | 2024-04-11T02:28:59Z |
| publishDate | 2019-04-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Forest Ecosystems |
| spelling | doaj.art-43ed3db20f7b4ce8a738b096bb6daf392023-01-02T21:43:24ZengKeAi Communications Co., Ltd.Forest Ecosystems2197-56202019-04-016111710.1186/s40663-019-0181-3The effects of persistent drought and waterlogging on the dynamics of nonstructural carbohydrates of Robinia pseudoacacia L. seedlings in Northwest ChinaBin Yang0Changhui Peng1Qiuan Zhu2Xiaolu Zhou3Weiguo Liu4Min Duan5Hui Wang6Zhihao Liu7Xinyi Guo8Meng Wang9Center for Ecological Forecasting and Global Change|, College of Forestry, Northwest A&F UniversityCenter for Ecological Forecasting and Global Change|, College of Forestry, Northwest A&F UniversityCenter for Ecological Forecasting and Global Change|, College of Forestry, Northwest A&F UniversityCenter for Ecological Forecasting and Global Change|, College of Forestry, Northwest A&F UniversityCenter for Ecological Forecasting and Global Change|, College of Forestry, Northwest A&F UniversityCenter for Ecological Forecasting and Global Change|, College of Forestry, Northwest A&F UniversityCenter for Ecological Forecasting and Global Change|, College of Forestry, Northwest A&F UniversityCenter for Ecological Forecasting and Global Change|, College of Forestry, Northwest A&F UniversityCenter for Ecological Forecasting and Global Change|, College of Forestry, Northwest A&F UniversityState Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Institute for Peat and Mire Research, Northeast Normal UniversityAbstract Background The nonstructural carbohydrates (NSCs) of plants are posited to be crucial traits for the resistance and resilience of plants to climate change-induced drought and flooding. However, the potential effects of persistent drought and waterlogging on the dynamics of the NSCs and the underlying mechanisms are still poorly understood. Methods We measured the NSCs concentrations and pool size, photosynthetic rate and biomass of Robinia pseudoacacia L. seedlings for both 2015 and 2016 under five soil water treatments: 3%, 8%, 17%, 24% and 34% soil water content, representing extreme drought (ED), moderate drought (MD), the control group (CG), field capacity (FC) and waterlogging (WL) stresses, respectively. We observed the relationship between the pool size of NSCs and the survival of seedlings under water stress (drought and waterlogging) for 30 days in greenhouse. Results Compared with CG, the net photosynthetic rate decreased 91%, 67%, 34% and 71%, and the biomass decreased by 37%, 15%, 16% and 33% under ED, MD, FC and WL, respectively. The total NSC (TNSC) concentration was significantly increased by 154% under ED after 10 days and sharply decreased by 50% under ED after 30 days. The concentrations of soluble sugars (SS) were significantly increased by 100% under MD after 10 days and sharply decreased by 60% under ED after 30 days. Compared with GC, the response of NSCs, photosynthetic rate and biomass under ED were more dramatic than that under WL. The pool sizes of fructose and sucrose were larger under ED and WL, but the maximum pool size of starch occurred under the CG. The depletion of NSCs was not observed under ED at the end of the experiments in both 2015 and 2016. Conclusions Our results indicate that the dynamics of NSCs is an important physiological feature of plant adaptation and resistance to drought and waterlogging. In addition, high sugars concentrations are beneficial for the plants during the short-term extreme drought and the longer term mild drought or waterlogging.http://link.springer.com/article/10.1186/s40663-019-0181-3Carbon poolSoil waterWhole-treeSugarsStarchTree mortality |
| spellingShingle | Bin Yang Changhui Peng Qiuan Zhu Xiaolu Zhou Weiguo Liu Min Duan Hui Wang Zhihao Liu Xinyi Guo Meng Wang The effects of persistent drought and waterlogging on the dynamics of nonstructural carbohydrates of Robinia pseudoacacia L. seedlings in Northwest China Forest Ecosystems Carbon pool Soil water Whole-tree Sugars Starch Tree mortality |
| title | The effects of persistent drought and waterlogging on the dynamics of nonstructural carbohydrates of Robinia pseudoacacia L. seedlings in Northwest China |
| title_full | The effects of persistent drought and waterlogging on the dynamics of nonstructural carbohydrates of Robinia pseudoacacia L. seedlings in Northwest China |
| title_fullStr | The effects of persistent drought and waterlogging on the dynamics of nonstructural carbohydrates of Robinia pseudoacacia L. seedlings in Northwest China |
| title_full_unstemmed | The effects of persistent drought and waterlogging on the dynamics of nonstructural carbohydrates of Robinia pseudoacacia L. seedlings in Northwest China |
| title_short | The effects of persistent drought and waterlogging on the dynamics of nonstructural carbohydrates of Robinia pseudoacacia L. seedlings in Northwest China |
| title_sort | effects of persistent drought and waterlogging on the dynamics of nonstructural carbohydrates of robinia pseudoacacia l seedlings in northwest china |
| topic | Carbon pool Soil water Whole-tree Sugars Starch Tree mortality |
| url | http://link.springer.com/article/10.1186/s40663-019-0181-3 |
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