陆生植物矽化的温度依赖性证据

IF 15.7 1区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES
Zhihao Pang, Félix de Tombeur, Sue E. Hartley, Constantin M. Zohner, Miroslav Nikolic, Cyrille Violle, Lidong Mo, Thomas W. Crowther, Dong-Xing Guan, Zhongkui Luo, Yong-Guan Zhu, Yuxiao Wang, Ping Zhang, Hongyun Peng, Caroline A. E. Strömberg, Nina Nikolic, Yongchao Liang
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引用次数: 0

摘要

几十年来,硅(Si)生物地球化学及其对植物的有益作用的研究受到了广泛关注,但高硅植物出现的原因尚不清楚。在此,我们结合实验、实地研究和现有数据库的分析来测试温度对陆生植物硅化表达和出现的作用。我们首先表明,Si在高温(40°C)下对水稻有益,但在低温(0°C)下有害,而2°C升高导致叶片Si浓度增加37%。我们发现,在全球范围内,高硅植物枝的平均分布温度比低硅植物枝的平均分布温度高1.2°C。在中国,高硅植物(小麦和水稻)的叶片硅浓度随温度升高而升高,而低硅植物(垂柳和迎春花)的叶片硅浓度则不升高。从进化的角度来看,77%的高Si家族(10 mg Si g−1 DW)起源于变暖期,而86%的低Si家族(1 mg Si g−1 DW)起源于变冷期。平均而言,高si族出现期间的地球温度比低si族高3°C。综上所述,我们的证据表明植物硅的变化与全球和长期气候变化密切相关。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Convergent evidence for the temperature-dependent emergence of silicification in terrestrial plants

Convergent evidence for the temperature-dependent emergence of silicification in terrestrial plants

Research on silicon (Si) biogeochemistry and its beneficial effects for plants has received significant attention over several decades, but the reasons for the emergence of high-Si plants remain unclear. Here, we combine experimentation, field studies and analysis of existing databases to test the role of temperature on the expression and emergence of silicification in terrestrial plants. We first show that Si is beneficial for rice under high temperature (40 °C), but harmful under low temperature (0 °C), whilst a 2 °C increase results in a 37% increase in leaf Si concentrations. We then find that, globally, the average distribution temperature of high-Si plant clades is 1.2 °C higher than that of low-Si clades. Across China, leaf Si concentrations increase with temperature in high-Si plants (wheat and rice), but not in low-Si plants (weeping willow and winter jasmine). From an evolutionary perspective, 77% of high-Si families (>10 mg Si g−1 DW) originate during warming episodes, while 86% of low-Si families (<1 mg Si g−1 DW) originate during cooling episodes. On average, Earth’s temperature during the emergence of high-Si families is 3 °C higher than that of low-Si families. Taken together, our evidence suggests that plant Si variation is closely related to global and long-term climate change.

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来源期刊
Nature Communications
Nature Communications Biological Science Disciplines-
CiteScore
24.90
自引率
2.40%
发文量
6928
审稿时长
3.7 months
期刊介绍: Nature Communications, an open-access journal, publishes high-quality research spanning all areas of the natural sciences. Papers featured in the journal showcase significant advances relevant to specialists in each respective field. With a 2-year impact factor of 16.6 (2022) and a median time of 8 days from submission to the first editorial decision, Nature Communications is committed to rapid dissemination of research findings. As a multidisciplinary journal, it welcomes contributions from biological, health, physical, chemical, Earth, social, mathematical, applied, and engineering sciences, aiming to highlight important breakthroughs within each domain.
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