Increased phosphate uptake but not resorption alleviates phosphorus deficiency induced by nitrogen deposition in temperate Larix principis-rupprechtii plantations

Increased phosphate uptake but not resorption alleviates phosphorus deficiency induced by nitrogen deposition in temperate Larix principis-rupprechtii plantations

© 2016 The Authors. New Phytologist © 2016 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1990. - 212(2016), 4 vom: 01. Dez., Seite 1019-1029
1. Verfasser: Deng, Meifeng (VerfasserIn)
Weitere Verfasser: Liu, Lingli, Sun, Zhenzhong, Piao, Shilong, Ma, Yuecun, Chen, Yiwei, Wang, Jing, Qiao, Chunlian, Wang, Xin, Li, Ping
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2016
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article N deposition N : P ratio P-acquiring strategies growth rate hypothesis mycorrhizae phosphatase activity stand age stoichiometric homoeostasis Fatty Acids mehr... Phosphates Phospholipids Phosphorus 27YLU75U4W Acid Phosphatase EC 3.1.3.2 Nitrogen N762921K75
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100 1 |a Deng, Meifeng  |e verfasserin  |4 aut 
245 1 0 |a Increased phosphate uptake but not resorption alleviates phosphorus deficiency induced by nitrogen deposition in temperate Larix principis-rupprechtii plantations 
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520 |a The imbalance between nitrogen (N) and phosphorus (P) deposition may shift temperate ecosystems from N- to P-limitation. However, it is unclear how the imbalanced N : P input affects the strategies of plants to acquire P and, therefore, the growth of plants and the competition among species. We conducted a 4-yr N-addition experiment in young and mature larch (Larix principis-rupprechtii) stands. Plant growth and P acquisition strategies were assessed for larch and understorey vegetation. N addition stimulated the aboveground productivity of understorey vegetation in the young stand and larch in the mature stand, with other species unaffected. The competitive advantages of understorey vegetation in the young stand and larch in the mature stand were associated with their high stoichiometric homoeostasis. To maintain the N : P homoeostasis of these species, an increase in phosphatase activity but not P resorption efficiency increased the supply of P. Additionally, N addition accelerated P mineralization by decreasing the fungal-to-bacterial ratios and improved uptake of soil P by increasing the arbuscular mycorrhizas-to-ectomycorrhizas ratios. Our results suggest that plants with high stoichiometric homoeostasis could better cope with N deposition-induced P-deficiency. Although P resorption efficiency showed little plasticity in response, plants activated a variety of P-acquisition pathways to alleviate the P-deficiency caused by N deposition 
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650 4 |a N deposition 
650 4 |a N : P ratio 
650 4 |a P-acquiring strategies 
650 4 |a growth rate hypothesis 
650 4 |a mycorrhizae 
650 4 |a phosphatase activity 
650 4 |a stand age 
650 4 |a stoichiometric homoeostasis 
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650 7 |a Phosphates  |2 NLM 
650 7 |a Phospholipids  |2 NLM 
650 7 |a Phosphorus  |2 NLM 
650 7 |a 27YLU75U4W  |2 NLM 
650 7 |a Acid Phosphatase  |2 NLM 
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650 7 |a Nitrogen  |2 NLM 
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700 1 |a Liu, Lingli  |e verfasserin  |4 aut 
700 1 |a Sun, Zhenzhong  |e verfasserin  |4 aut 
700 1 |a Piao, Shilong  |e verfasserin  |4 aut 
700 1 |a Ma, Yuecun  |e verfasserin  |4 aut 
700 1 |a Chen, Yiwei  |e verfasserin  |4 aut 
700 1 |a Wang, Jing  |e verfasserin  |4 aut 
700 1 |a Qiao, Chunlian  |e verfasserin  |4 aut 
700 1 |a Wang, Xin  |e verfasserin  |4 aut 
700 1 |a Li, Ping  |e verfasserin  |4 aut 
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773 1 8 |g volume:212  |g year:2016  |g number:4  |g day:01  |g month:12  |g pages:1019-1029 
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