globalchange  > 气候变化事实与影响
DOI: 10.1093/jpe/rty014
WOS记录号: WOS:000461146600005
论文题名:
Nitrogen preference across generations under changing ammonium nitrate ratios
作者: Daryanto, Stefani1,2; Wang, Lixin1; Gilhooly, William P., III1; Jacinthe, Pierre-Andre1
通讯作者: Wang, Lixin
刊名: JOURNAL OF PLANT ECOLOGY
ISSN: 1752-9921
EISSN: 1752-993X
出版年: 2019
卷: 12, 期:2, 页码:235-244
语种: 英语
英文关键词: climate change ; filial ; isotope ; parent ; plasticity
WOS关键词: PLANT ; NH4+ ; ROOT ; INHIBITION ; GROWTH ; ASSIMILATION ; RESOURCES ; TRANSPORT ; SEEDLINGS ; MAIZE
WOS学科分类: Plant Sciences ; Ecology
WOS研究方向: Plant Sciences ; Environmental Sciences & Ecology
英文摘要:

Aims Nitrogen (N) in natural environments is typically supplied by a mixture of ammonia (NH4+) and nitrate (NO3-). However, factors that underlie either NH4+ or NO3- preference, and how such preference will change across generations remain unclear. We conducted a series of experiments to answer whether: (i) NH4+:NO3- ratio is the driving factor for plant N preference, and (ii) this preference is consistent across generations.


Methods We conducted both: (i) field observations (as a proxy for parent or P generation) and (ii) greenhouse experiments (the first generation or F1 and the second generation or F2) using corn and soybean grown under different NH4+:NO3- ratios.


Important Findings Both corn and soybean had the physiological plasticity to prefer either NH4+ or NO3- depending on NH4+:NO3- ratios, and this plasticity was consistent across generations. Corn, however, showed a stronger preference towards NO3- while soybean showed a stronger preference towards NH4+. While both plants would try to make use of the most available form of N in their growing medium, plant species, physiological characteristics (e.g. maturity) and plant nutrient status also determined the extent of N uptake. From the evolutionary and productivity perspective, this plasticity is beneficial, allowing plants to effectively acquire available N particularly in a changing climate.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/133653
Appears in Collections:气候变化事实与影响

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作者单位: 1.Indiana Univ Purdue Univ, Dept Earth Sci, 723 W Michigan St, Indianapolis, IN 46202 USA
2.Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China

Recommended Citation:
Daryanto, Stefani,Wang, Lixin,Gilhooly, William P., III,et al. Nitrogen preference across generations under changing ammonium nitrate ratios[J]. JOURNAL OF PLANT ECOLOGY,2019-01-01,12(2):235-244
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