Nitrogen acquisition strategy and its effects on invasiveness of a subtropical invasive plant.
Nitrogen acquisition strategy and its effects on invasiveness of a subtropical invasive plant.
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DOI：
10.3389/fpls.2023.1243849
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发表时间：
2023
影响因子：
5.6
通讯作者：
Feng, Yu-Long
中科院分区：
文献类型：
--
作者：
Guan, Ming;Pan, Xiao-Cui;Sun, Jian-Kun;Chen, Ji-Xin;Kong, De-Liang;Feng, Yu-Long
关键词：
氮素吸收的选择性和可塑性是植物吸收土壤氮素的主要策略，然而，尽管许多研究确定了氮素水平(如氮沉积)对外来植物入侵的影响，但很少有人研究氮素获取策略，特别是可塑性，对外来植物入侵的影响。针对这一问题，我们利用15N标记技术，研究了入侵植物加拿大一枝黄花与其共生的本土植物加拿大一枝黄花在氮素获取策略上的差异、土壤氮素环境的影响以及加拿大一枝黄花的氮素获取策略与其侵袭性之间的关系。在三种生境中，入侵物种的总生物量、根系生物量和土壤溶解无机氮(DIN)的吸入量均高于本地物种。入侵者在以NH4+为主的生境中总是偏爱优势态土壤N，在以NO3-为主的生境中总是偏爱N3-，而在所有的生境中，宽叶沙打旺始终偏爱NO3-。外来物种对氮素吸收的可塑性高于本地物种，尤其是在农田。DIN水平和不同形态氮的比例(NO3-/NH4+)对植株氮素的贡献(f NH4+)和对NH4+的偏好(βNH4+)均有负面影响，从而影响植物氮素形态的获取策略。此外，总生物量与f NH_4~+或βNH_4~+呈正相关，而与稀有植物呈负相关。有趣的是，当土壤DIN和/或NO3-/NH4+比值较低时，该物种可能更喜欢吸收NH4+，根冠比可能受到植物本身营养状况的影响，而不是土壤养分有效性的影响。我们的结果表明，入侵者优越的N形态获取策略有助于其更高的N吸收，从而有助于其在不同生境中的入侵，从而从利用不同N形态的角度提高我们对不同生境中外来植物入侵的认识。
Preference and plasticity in nitrogen (N) form uptake are the main strategies with which plants absorb soil N. However, little effort has been made to explore effects of N form acquisition strategies, especially the plasticity, on invasiveness of exotic plants, although many studies have determined the effects of N levels (e.g. N deposition). To address this problem, we studied the differences in N form acquisition strategies between the invasive plant Solidago canadensis and its co-occurring native plant Artemisia lavandulaefolia, effects of soil N environments, and the relationship between N form acquisition strategy of S. canadensis and its invasiveness using a 15N-labeling technique in three habitats at four field sites. Total biomass, root biomass, and the uptakes of soil dissolved inorganic N (DIN) per quadrat were higher for the invasive relative to the native species in all three habitats. The invader always preferred dominant soil N forms: NH4 + in habitats with NH4 + as the dominant DIN and NO3 - in habitats with NO3 - as the dominant DIN, while A. lavandulaefolia consistently preferred NO3 - in all habitats. Plasticity in N form uptake was higher in the invasive relative to the native species, especially in the farmland. Plant N form acquisition strategy was influenced by both DIN levels and the proportions of different N forms (NO3 -/NH4 +) as judged by their negative effects on the proportional contributions of NH4 + to plant N (f NH4 +) and the preference for NH4 + (β NH4 +). In addition, total biomass was positively associated with f NH4 + or β NH4 + for S. canadensis, while negatively for A. lavandulaefolia. Interestingly, the species may prefer to absorb NH4 + when soil DIN and/or NO3 -/NH4 + ratio were low, and root to shoot ratio may be affected by plant nutrient status per se, rather than by soil nutrient availability. Our results indicate that the superior N form acquisition strategy of the invader contributes to its higher N uptake, and therefore to its invasiveness in different habitats, improving our understanding of invasiveness of exotic plants in diverse habitats in terms of utilization of different N forms.
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影响因子：
5.6
作者：
通讯作者：
--
DOI：
10.1073/pnas.0609935104
发表时间：
2007-05-22
影响因子：
11.1
作者：
Houlton, Benjamin Z.;Sigman, Daniel M.;Hedin, Lars O.
通讯作者：
Hedin, Lars O.
影响因子：
6.8
作者：
Guo, Xiao;Hu, Yi;Li, Ming-Yan
通讯作者：
Li, Ming-Yan
入侵生物学的概念图：将假设整合到共识网络中。
DOI：
10.1111/geb.13082
发表时间：
2020-06
期刊：
Global ecology and biogeography : a journal of macroecology
影响因子：
--
作者：
Enders M;Havemann F;Ruland F;Bernard-Verdier M;Catford JA;Gómez-Aparicio L;Haider S;Heger T;Kueffer C;Kühn I;Meyerson LA;Musseau C;Novoa A;Ricciardi A;Sagouis A;Schittko C;Strayer DL;Vilà M;Essl F;Hulme PE;van Kleunen M;Kumschick S;Lockwood JL;Mabey AL;McGeoch MA;Palma E;Pyšek P;Saul WC;Yannelli FA;Jeschke JM
通讯作者：
Jeschke JM
非本地亚热带入侵者种群更快地恢复能源利用策略：增强竞争力的潜在机制
影响因子：
5.5
作者：
Feng, Yu-Long;Li, Yang-Ping;Inderjit
通讯作者：
Inderjit