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DOI | 10.3389/fpls.2019.00111 |
Similar Growth Performance but Contrasting Biomass Allocation of Root-Flooded Terrestrial Plant Alternanthera philoxeroides (Mart.) Griseb. in Response to Nutrient Versus Dissolved Oxygen Stress | |
Ayi, Qiaoli1,2; Zeng, Bo1; Yang, Kang1; Lin, Feng1; Zhang, Xiaoping1; van Bodegom, Peter M.3; Cornelissen, Johannes H. C.2 | |
发表日期 | 2019 |
ISSN | 1664-462X |
卷号 | 10 |
英文摘要 | Terrestrial plants may experience nutrient and oxygen stress when they are submerged, and increases in flooding are anticipated with climate change. It has been well reported that plants usually shift biomass allocation and produce more roots in response to nutrient deficiency. However, it is unclear whether plants experiencing oxygen deficiency stimulate biomass allocation to roots to enhance nutrient absorption, similar to how plants experiencing nutrient deficiency behave. We investigated the responses of the terrestrial species Alternanthera philoxeroides, upon root flooding, to nutrient versus dissolved oxygen deficiency in terms of plant growth, biomass allocation, root production, root efficiency (plant growth sustained per unit root surface area), and root aerenchyma formation. Both nutrient and dissolved oxygen deficiency hampered the growth of root-flooded plants. As expected, plants experiencing nutrient deficiency increased biomass allocation to roots and exhibited lower root efficiency; in contrast, plants experiencing dissolved oxygen deficiency decreased biomass allocation to roots but achieved higher root efficiency. The diameter of aerenchyma channels in roots were enlarged in plants experiencing dissolved oxygen deficiency but did not change in plants experiencing nutrient deficiency. The widening of aerenchyma channels in roots could have improved the oxygen status and thereby the nutrient absorption capability of roots in low oxygen environments, which might benefit the plants to tolerate flooding. |
WOS研究方向 | Plant Sciences |
来源期刊 | FRONTIERS IN PLANT SCIENCE |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/93317 |
作者单位 | 1.Southwest Univ, Sch Life Sci,Minist Educ, Key Lab Ecoenvironm Gorges Reservoir Reg 3, Chongqing Key Lab Plant Ecol & Resources Three Go, Chongqing, Peoples R China; 2.Vrije Univ Amsterdam, Inst Ecol Sci, Fac Earth & Life Sci, Dept Syst Ecol, Amsterdam, Netherlands; 3.Leiden Univ, Inst Environm Sci, Leiden, Netherlands |
推荐引用方式 GB/T 7714 | Ayi, Qiaoli,Zeng, Bo,Yang, Kang,et al. Similar Growth Performance but Contrasting Biomass Allocation of Root-Flooded Terrestrial Plant Alternanthera philoxeroides (Mart.) Griseb. in Response to Nutrient Versus Dissolved Oxygen Stress[J],2019,10. |
APA | Ayi, Qiaoli.,Zeng, Bo.,Yang, Kang.,Lin, Feng.,Zhang, Xiaoping.,...&Cornelissen, Johannes H. C..(2019).Similar Growth Performance but Contrasting Biomass Allocation of Root-Flooded Terrestrial Plant Alternanthera philoxeroides (Mart.) Griseb. in Response to Nutrient Versus Dissolved Oxygen Stress.FRONTIERS IN PLANT SCIENCE,10. |
MLA | Ayi, Qiaoli,et al."Similar Growth Performance but Contrasting Biomass Allocation of Root-Flooded Terrestrial Plant Alternanthera philoxeroides (Mart.) Griseb. in Response to Nutrient Versus Dissolved Oxygen Stress".FRONTIERS IN PLANT SCIENCE 10(2019). |
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