不同来源刺槐对土壤氮供应的生理响应。

IF 3.4 3区 生物学 Q1 PLANT SCIENCES
Plant Biology Pub Date : 2026-07-13 Epub Date: 2026-05-17 DOI:10.1111/plb.70229
T. Peng, H. Wang, R. Liu, Z. Xia, J. Jia, C. Xue, B. Hu, H. Rennenberg
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引用次数: 0

摘要

刺槐(Robinia pseudoacacia L.)是一种分布广泛、能适应不同土壤氮供应的树种。然而,刺槐对不同土壤氮供应的种源特异性响应在很大程度上尚未被探索。为了研究土壤氮有效性对刺槐生长发育的重要性,本研究在不接种外源氮的条件下,研究了5个刺槐种源对不同氮水平的生理反应。本研究选择的种源来自中国4个不同气候的省份,即辽宁(LN)、宁夏(NX)、江西(JX)和山东(L155和L5001),分别在正常(1.4 mM)、高(14.3 mM)和低(0 mM)氮供应条件下栽培。经过8个月(3个半月为氮素处理)的培养、CO2和H2O气体交换,分析了氮代谢酶活性、氮含量和分配、活性氧的积累和清除。结果表明,不同种源的生物量、光合作用和氮分配存在显著差异。JX和L155在高氮条件下表现出较强的氮代谢,而L5001和LN在高氮和低氮条件下均表现出较强的氮代谢。此外,在低氮条件下,L155、L5001和NX表现出比JX和LN更强的抗氧化性和膜稳定性。这些种源间的生理差异被发现是由当地气候参数驱动的,如年平均温度和降水。对原产地气候的长期适应在不同氮供应条件下形成刺槐的表现起着至关重要的作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Physiological responses of Robinia pseudoacacia L. of different origins to soil nitrogen supply

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来源期刊
Plant Biology
Plant Biology 生物-植物科学
CiteScore
8.20
自引率
2.60%
发文量
109
审稿时长
3 months
期刊介绍: Plant Biology is an international journal of broad scope bringing together the different subdisciplines, such as physiology, molecular biology, cell biology, development, genetics, systematics, ecology, evolution, ecophysiology, plant-microbe interactions, and mycology. Plant Biology publishes original problem-oriented full-length research papers, short research papers, and review articles. Discussion of hot topics and provocative opinion articles are published under the heading Acute Views. From a multidisciplinary perspective, Plant Biology will provide a platform for publication, information and debate, encompassing all areas which fall within the scope of plant science.
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