在欧洲温带树木中,土壤水分减少比长期温度升高更能推动叶片解剖结构的变化。

IF 3.6 3区 生物学 Q1 PLANT SCIENCES Plant Biology Pub Date : 2026-04-17 Epub Date: 2024-11-14 DOI:10.1111/plb.13745
M. Didion-Gency, J. Deluigi, J. Gisler, T. Juillard, M. Schaub, A. Tuñas-Corzon, C. Grossiord
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引用次数: 0

摘要

土壤水分长期减少加上空气温度过高会改变树木的碳和水关系。然而,人们对树木如何使其叶片结构适应这两种气候驱动因素的单独和综合影响知之甚少。我们使用敞篷室测定了长期气温升高(+5 °C)和土壤水分减少(-50%)单独或共同对两种欧洲树种叶片结构的多年影响。我们还进一步研究了这些气候驱动因素如何影响绒栎和欧洲榉幼树的叶片解剖与生理/化学之间的关系。4 年后,土壤水分减少导致橡树和榉树的叶片变薄,表皮变窄,气体交换量降低,但后者的影响程度较小。相比之下,长期升温对这两个物种的解剖学和生理/化学特征都没有影响。气候变暖也没有加剧干燥土壤的影响,这说明土壤水分是叶片解剖结构变化的关键驱动因素。虽然土壤水分改变了这两种植物的叶片解剖结构以及生理和化学特征,但我们的工作表明,随着条件变得更加干燥和温暖,叶片向更耐旱和耐热方向发展的适应潜力有限,这表明这两种植物对未来气候预测的潜在脆弱性很高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Reduced soil moisture drives leaf anatomical shifts more than chronically elevated temperatures in European temperate trees

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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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