Legacy effects of nematodes: Experimental evidence on live individuals and their residues in shaping plant nutrient acquisition

IF 2 3区农林科学 Q3 ECOLOGY

Pedobiologia Pub Date : 2025-04-17 DOI:10.1016/j.pedobi.2025.151052

Qian Chi , Yangxin Shi , Peng Wang , Mengmeng Wang , Yuanhu Shao , Shenglei Fu

引用次数: 0

Abstract

Soil nematodes are crucial constituents of terrestrial ecosystems and strongly influence the growth of both plants and soil microbes. Using a controlled factorial experiment, we investigated the distinct effects of live nematodes and dead nematode residues on soil microbial biomass and plant nutrient dynamics. Our results demonstrated that both live nematodes and nematode residues reduce microbial biomass carbon and cause a transient decrease in microbial biomass nitrogen, while increasing plant leaf nitrogen content. These findings underscore the important influence of nematodes, irrespective of their life state, on plant and soil microbial nutrient acquisition. They also highlight the pivotal yet underappreciated role of nematode residues in shaping soil ecosystem processes, suggesting that nematode contributions extend beyond their lifespan.

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线虫的遗留效应：活个体及其残留物在塑造植物营养获取中的实验证据

土壤线虫是陆地生态系统的重要组成部分，对植物和土壤微生物的生长有重要影响。通过控制因子试验，研究了活线虫和死线虫残留物对土壤微生物生物量和植物养分动态的不同影响。我们的研究结果表明，活线虫和线虫残留物都减少了微生物生物量碳，并导致微生物生物量氮的短暂减少，同时增加了植物叶片氮含量。这些发现强调了线虫对植物和土壤微生物养分获取的重要影响，而不管它们的生命状态如何。他们还强调了线虫残留物在塑造土壤生态系统过程中的关键但未被重视的作用，这表明线虫的贡献超出了它们的寿命。

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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来源期刊

Pedobiologia 环境科学-生态学

CiteScore

4.20

自引率

8.70%

发文量

审稿时长

64 days

期刊介绍： Pedobiologia publishes peer reviewed articles describing original work in the field of soil ecology, which includes the study of soil organisms and their interactions with factors in their biotic and abiotic environments. Analysis of biological structures, interactions, functions, and processes in soil is fundamental for understanding the dynamical nature of terrestrial ecosystems, a prerequisite for appropriate soil management. The scope of this journal consists of fundamental and applied aspects of soil ecology; key focal points include interactions among organisms in soil, organismal controls on soil processes, causes and consequences of soil biodiversity, and aboveground-belowground interactions. We publish: original research that tests clearly defined hypotheses addressing topics of current interest in soil ecology (including studies demonstrating nonsignificant effects); descriptions of novel methodological approaches, or evaluations of current approaches, that address a clear need in soil ecology research; innovative syntheses of the soil ecology literature, including metaanalyses, topical in depth reviews and short opinion/perspective pieces, and descriptions of original conceptual frameworks; and short notes reporting novel observations of ecological significance.