دورية أكاديمية
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How does the pattern of root metabolites regulating beneficial microorganisms change with different grazing pressures?

التفاصيل البيبلوغرافية
العنوان: How does the pattern of root metabolites regulating beneficial microorganisms change with different grazing pressures?
المؤلفون: Yuan T; Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot, China., Ren W; Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot, China., Wang Z; Key Laboratory of Forage Breeding and Seed Production of Inner Mongolia, Inner Mongolia M-Grass Ecology and Environment (Group) Co., Ltd., Hohhot, China., Fry EL; Department of Biology, Edge Hill University, Ormskirk, United Kingdom., Tang S; Key Laboratory of Model Innovation in Forage Production Efficiency, Institute of Grassland Research, Chinese Academy of Agricultural Sciences, Hohhot, China., Yin J; Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot, China., Zhang J; Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot, China., Jia Z; Key Laboratory of Forage Breeding and Seed Production of Inner Mongolia, Inner Mongolia M-Grass Ecology and Environment (Group) Co., Ltd., Hohhot, China.
المصدر: Frontiers in plant science [Front Plant Sci] 2023 Jul 06; Vol. 14, pp. 1180576. Date of Electronic Publication: 2023 Jul 06 (Print Publication: 2023).
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Frontiers Research Foundation Country of Publication: Switzerland NLM ID: 101568200 Publication Model: eCollection Cited Medium: Print ISSN: 1664-462X (Print) Linking ISSN: 1664462X NLM ISO Abbreviation: Front Plant Sci Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: Lausanne : Frontiers Research Foundation, 2010-
مستخلص: Grazing disturbance can change the structure of plant rhizosphere microbial communities and thereby alter the feedback to promote plant growth or induce plant defenses. However, little is known about how such changes occur and vary under different grazing pressures or the roles of root metabolites in altering the composition of rhizosphere microbial communities. In this study, the effects of different grazing pressures on the composition of microbial communities were investigated, and the mechanisms by which different grazing pressures changed rhizosphere microbiomes were explored with metabolomics. Grazing changed composition, functions, and co-expression networks of microbial communities. Under light grazing (LG), some saprophytic fungi, such as Lentinus sp., Ramichloridium sp., Ascobolus sp. and Hyphoderma sp., were significantly enriched, whereas under heavy grazing (HG), potentially beneficial rhizobacteria, such as Stenotrophomonas sp., Microbacterium sp., and Lysobacter sp., were significantly enriched. The beneficial mycorrhizal fungus Schizothecium sp. was significantly enriched in both LG and HG. Moreover, all enriched beneficial microorganisms were positively correlated with root metabolites, including amino acids (AAs), short-chain organic acids (SCOAs), and alkaloids. This suggests that these significantly enriched rhizosphere microbial changes may be caused by these differential root metabolites. Under LG, it is inferred that root metabolites, especially AAs such as L-Histidine, may regulate specific saprophytic fungi to participate in material transformations and the energy cycle and promote plant growth. Furthermore, to help alleviate the stress of HG and improve plant defenses, it is inferred that the root system actively regulates the synthesis of these root metabolites such as AAs, SCOAs, and alkaloids under grazing interference, and then secretes them to promote the growth of some specific plant growth-promoting rhizobacteria and fungi. To summarize, grasses can regulate beneficial microorganisms by changing root metabolites composition, and the response strategies vary under different grazing pressure in typical grassland ecosystems.
Competing Interests: TY reports financial support, equipment, drugs, and supplies were provided by Natural Science Foundation of China. WR reports a relationship with National Natural Science Foundation of China that includes: funding grants. ZW and ZJ were employed by the company Inner Mongolia M-Grass Ecology and Environment (Group) Co., Ltd. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
(Copyright © 2023 Yuan, Ren, Wang, Fry, Tang, Yin, Zhang and Jia.)
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فهرسة مساهمة: Keywords: Leymus chinensis; beneficial rhizobacteria; grazing pressure; mycorrhizal fungi; root metabolites; saprophytic fungi
تواريخ الأحداث: Date Created: 20230724 Latest Revision: 20230725
رمز التحديث: 20231215
مُعرف محوري في PubMed: PMC10361787
DOI: 10.3389/fpls.2023.1180576
PMID: 37484473
قاعدة البيانات: MEDLINE
الوصف
تدمد:1664-462X
DOI:10.3389/fpls.2023.1180576