دورية أكاديمية
Plant roots send metabolic signals to microbes in response to long-term overgrazing.
| العنوان: | Plant roots send metabolic signals to microbes in response to long-term overgrazing. |
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| المؤلفون: | Jingjing Y; School of Ecology and Environment, Inner Mongolia University, Hohhot, China., Huiqin G; Faculty of Life Science, Inner Mongolia Agricultural University, Hohhot, China., Fry EL; Department of Biology, Edge Hill University, Ormskirk, Lancashire L39 4QP, UK., De Long JR; Louis Bolk Institute, Kosterijland 3-5, 3981 AJ Bunnik, the Netherlands., Shiming T; School of Ecology and Environment, Inner Mongolia University, Hohhot, China., Ting Y; School of Ecology and Environment, Inner Mongolia University, Hohhot, China. Electronic address: yuanting9541@163.com., Weibo R; School of Ecology and Environment, Inner Mongolia University, Hohhot, China. Electronic address: 111979364@imu.edu.cn. |
| المصدر: | The Science of the total environment [Sci Total Environ] 2022 Oct 10; Vol. 842, pp. 156241. Date of Electronic Publication: 2022 May 26. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Country of Publication: Netherlands NLM ID: 0330500 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1026 (Electronic) Linking ISSN: 00489697 NLM ISO Abbreviation: Sci Total Environ Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Amsterdam, Elsevier. |
| مواضيع طبية MeSH: | Microbiota* , Soil Microbiology*, Bacteria/metabolism ; Fungi/metabolism ; Plant Roots/microbiology ; Plants ; Rhizosphere ; Soil |
| مستخلص: | Overgrazing directly and indirectly affects soil microorganisms, which can have feedback effects on plant growth. Little is known about the root metabolites plants produce and whether they recruit beneficial microbes in response to overgrazing. Here, we used the dominant grassland species Leymus chinensis to explore correlations between root metabolites and the rhizosphere microbiome shaped by long-term overgrazing, which was determined by using LC-MS technology and high-throughput sequencing. In total, 839 metabolites were detected, with 41 significantly higher and 3 significantly lower in overgrazing versus grazing exclusion plots. The rhizosphere bacterial community was changed, but the fungal community was not altered. Moreover, 11 bacterial orders were found only in the overgrazed samples, and these showed close relationships to root metabolites and certain soil properties. Of these, Latescibacterales, B10-SB3A, and Nitrosococcales are known to be involved in growth promotion, C and N metabolism, respectively. In addition, root metabolites play an important role in mediating root-fungi interactions. The beneficial fungal orders Agaricales and Sordariales have a tread to be higher maybe due to root metabolites, mainly facilitate nutrient absorption and protect organic carbon in the soil, respectively. Our results indicate that grassland plants send metabolic signals to recruit key beneficial bacteria and stabilize fungal communities to alleviate grazing-induced stress in typical grassland ecosystems. Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (Copyright © 2022. Published by Elsevier B.V.) |
| فهرسة مساهمة: | Keywords: Bacterial community; Fungal community; Leymus chinensis; Overgrazing; Root metabolic signals; Typical grassland |
| المشرفين على المادة: | 0 (Soil) |
| تواريخ الأحداث: | Date Created: 20220601 Date Completed: 20220817 Latest Revision: 20220817 |
| رمز التحديث: | 20221213 |
| DOI: | 10.1016/j.scitotenv.2022.156241 |
| PMID: | 35644397 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1879-1026 |
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| DOI: | 10.1016/j.scitotenv.2022.156241 |