Knowledge Management System of Kunming Institute of Botany,CAS
| The flux of root-derived carbon via fungi and bacteria into soil microarthropods (Collembola) differs markedly between cropping systems | |
| Li,Zhipeng; Shi,Lingling; Kuzyakov,Yakov; Pausch,Johanna; Scheu,Stefan; Pollierer,Melanie M. | |
| 2021 | |
| 发表期刊 | SOIL BIOLOGY & BIOCHEMISTRY
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| ISSN | 0038-0717 |
| 卷号 | 160页码:108336 |
| 摘要 | Recently fixed plant carbon (C) being released as rhizodeposits is a major resource fueling soil food webs. Soil microorganisms predominate in incorporating root-derived C and subsequently transfer it to higher trophic levels. However, variation in microbial community structure between cropping systems and its consequences for the incorporation of root-derived C into soil microbivores remain unclear. In the present study, we used 13CO2 to pulse label a crop monoculture (oilseed rape, Brassica napus L.), a mixed grass community (dominated by Lolium perenne L. mixed with clover Trifolium repens L.), and a young tree plantation (willow, Salix schwerinii E.L. Wolf and Salix viminalis L.). During 28 days, we traced the incorporation of root-derived 13C into phospholipid fatty acids (PLFAs) of soil microorganisms and neutral lipid fatty acids (NLFAs) of five Collembola species belonging to three functional groups: epedaphic (surface-dwelling), hemiedaphic (litter-dwelling), and euedaphic (soildwelling). The contribution of bacterial and fungal channels to the incorporation of root-derived C into Collembola varied considerably between cropping systems. Collembola incorporated more 13C from the bacterial channel in rape than in grass and willow, where fungi were the major C source. This corresponded to a similarly higher 13C incorporation into bacterial marker PLFAs in rape compared to grass and willow. By contrast, while the proportion of bacterial and fungal biomarkers in Collembola NLFAs was related to the 13C incorporation into microbial PLFAs, it did not correlate with the proportion of microbial PLFAs in the different cropping systems. This suggests that Collembola rely on specific microbial pools, presumably related to recent plant inputs. Within the same cropping system, hemiedaphic species incorporated more root-derived 13C from the bacterial channel compared to euedaphic and epedaphic species. The results demonstrate the remarkable importance of cropping system for the flux of root C into microorganisms and microbivore soil invertebrates. Changes in root C flux into bacterial and fungal resources among cropping systems resulted in differential utilization of these resources by soil microbivores, suggesting that in particular microorganisms fueled by rhizodeposits are vital resources for the nutrition of higher trophic levels in soil food webs. |
| 关键词 | Agroforestry Bacterial energy channel C-13 labeling Collembola Fungal energy channel NLFAs MICROBIAL COMMUNITY COMPOSITION ARBUSCULAR MYCORRHIZAL FUNGI FOOD WEBS FATTY-ACIDS PLANT CARBON ARABLE SOIL RHIZOSPHERE C-13 ASSIMILATION NITROGEN |
| DOI | 10.1016/j.soilbio.2021.108336 |
| WOS记录号 | WOS:000683006800010 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.kib.ac.cn/handle/151853/73485 |
| 专题 | 中国科学院昆明植物研究所 |
| 作者单位 | 1.[Li, Zhipeng; Scheu, Stefan; Pollierer, Melanie M.] Univ Gottingen, JF Blumenbach Inst Zool & Anthropol, Untere Karspule 2, Gottingen, Germany 2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Div & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China 3.Univ Gottingen, Dept Agr Soil Sci, Dept Soil Sci Temperate Ecosyst, D-37077 Gottingen, Germany 4.RUDN Univ, Agrotechnol Inst, Moscow, Russia 5.Univ Bayreuth, Dept Agroecol, Univstr 30, D-95440 Bayreuth, Germany 6.Univ Gottingen, Ctr Biodivers & Sustainable Land Use, Busgenweg 1, D-37077 Gottingen, Germany 7.Kazan Fed Univ, Inst Environm Sci, Kazan 420049, Russia |
| 推荐引用方式 GB/T 7714 | Li,Zhipeng,Shi,Lingling,Kuzyakov,Yakov,et al. The flux of root-derived carbon via fungi and bacteria into soil microarthropods (Collembola) differs markedly between cropping systems[J]. SOIL BIOLOGY & BIOCHEMISTRY,2021,160:108336. |
| APA | Li,Zhipeng,Shi,Lingling,Kuzyakov,Yakov,Pausch,Johanna,Scheu,Stefan,&Pollierer,Melanie M..(2021).The flux of root-derived carbon via fungi and bacteria into soil microarthropods (Collembola) differs markedly between cropping systems.SOIL BIOLOGY & BIOCHEMISTRY,160,108336. |
| MLA | Li,Zhipeng,et al."The flux of root-derived carbon via fungi and bacteria into soil microarthropods (Collembola) differs markedly between cropping systems".SOIL BIOLOGY & BIOCHEMISTRY 160(2021):108336. |
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