Academic Journal
Preliminary strain-specific and non-additive effects of single versus mixed DSE inoculation on rhizosphere microbiome and nutrient cycling relative to plant biomass in Chinese yam.
| Τίτλος: | Preliminary strain-specific and non-additive effects of single versus mixed DSE inoculation on rhizosphere microbiome and nutrient cycling relative to plant biomass in Chinese yam. |
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| Συγγραφείς: | Su Z; College of Traditional Chinese Medicine, Hebei University, Baoding, Hebei 071000, China., Li M; College of Traditional Chinese Medicine, Hebei University, Baoding, Hebei 071000, China., Zuo Y; College of Traditional Chinese Medicine, Hebei University, Baoding, Hebei 071000, China.; Hebei Administration of Traditional Chinese Medicine Collaborative Innovation Key Research Laboratory of Chinese Medicinal Resource Industrialization, Baoding, Hebei 071000, China., Guo J; College of Traditional Chinese Medicine, Hebei University, Baoding, Hebei 071000, China., Wei Y; College of Traditional Chinese Medicine, Hebei University, Baoding, Hebei 071000, China., Fan S; College of Traditional Chinese Medicine, Hebei University, Baoding, Hebei 071000, China.; Hebei Administration of Traditional Chinese Medicine Collaborative Innovation Key Research Laboratory of Chinese Medicinal Resource Industrialization, Baoding, Hebei 071000, China., Wang Y; School of Basic Medical Sciences, Hebei University, Baoding, Hebei 071000, China.; Hebei Administration of Traditional Chinese Medicine Collaborative Innovation Key Research Laboratory of Chinese Medicinal Resource Industrialization, Baoding, Hebei 071000, China. |
| Πηγή: | Journal of applied microbiology [J Appl Microbiol] 2026 Aug 04; Vol. 137 (8). |
| Τύπος έκδοσης: | Journal Article |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Oxford University Press Country of Publication: England NLM ID: 9706280 Publication Model: Print Cited Medium: Internet ISSN: 1365-2672 (Electronic) Linking ISSN: 13645072 NLM ISO Abbreviation: J Appl Microbiol Subsets: MEDLINE |
| Imprint Name(s): | Publication: 2022- : Oxford : Oxford University Press Original Publication: Oxford : Published for the Society for Applied Bacteriology by Blackwell Science, c1997- |
| Ιατρικοί όροι (MeSH): | Dioscorea*/microbiology , Dioscorea*/growth & development , Dioscorea*/metabolism , Endophytes*/physiology , Endophytes*/isolation & purification , Endophytes*/genetics , Endophytes*/classification , Rhizosphere* , Soil Microbiology* , Microbiota*, Plant Roots/microbiology ; Plant Roots/growth & development ; Bacteria/classification ; Bacteria/isolation & purification ; Bacteria/genetics ; Bacteria/metabolism ; Fungi/classification ; Fungi/isolation & purification ; Fungi/genetics ; Fungi/metabolism ; Soil/chemistry ; Biomass ; China |
| Περίληψη: | Aims: To mitigate Chinese yam continuous cropping obstacles, this study assessed single and mixed dark septate endophyte (DSE) inoculation effects on yam growth, soil characteristics and rhizosphere microbial communities, offering references for optimizing rhizosphere microenvironment of continuously cropped medicinal plant soils. Methods and Results: 9 DSE strains were isolated from yam roots for single/mixed seedling pot inoculation; We found that growth-promoting effects differed by strain. Acrocalymma and Setophoma terrestris were the most commonly isolated DSE species, but strains with lower isolation rates Paraphoma ledniceana, Amesia atrobrunnea, and Zopfiella pilifera exhibited the most pronounced positive effects on yam root biomass. Increasing the number of co-inoculated strains did not proportionally enhance yam growth but progressively restructured soil microbial communities. However, mixed DSE inoculation as a whole showed no obvious growth promotion compared with the control. Fungal co-occurrence networks exhibited higher modularity and clustering, while bacterial communities had greater connectivity, especially under P. ledniceana and Fusarium sp. inoculation. Biosynthesis was the most abundant predicted function of rhizosphere microbes, with bacteria predicted to be enriched in detoxification and fungi in degradation-related pathways. Two strains of Chaetomiaceae and Periconia epilithographicola increased soil pH, organic carbon and available phosphorus, while available nitrogen decreased after DSE inoculation. Importantly, P. epilithographicola inoculation enhanced mycorrhizal fungi and mitigated microbial imbalance. Conclusions: Single and mixed DSE inoculations regulate rhizosphere microbial assembly and nutrient cycling via species-specific effects. Screening beneficial DSE consortia and characterizing their influence on rhizosphere networks provides preliminary theoretical insights and and candidate strains that may relieve yam replant obstacles in future applications. (© The Author(s) 2026. Published by Oxford University Press on behalf of Applied Microbiology International. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site-for further information please contact journals.permissions@oup.com.) |
| Grant Information: | C2024201069 Natural Science Foundation of Hebei Province; QN2025140 Natural Science Foundation of Hebei Provincial Universities; 20240031 Hebei University; 20240053 Hebei University; CXZZSS2025011 Innovation Fund Project of Hebei Province |
| Contributed Indexing: | Keywords: Chinese Yam; co-occurrence networks; dark septate endophytes; mixed microbial inoculation; rhizosphere interactions |
| Substance Nomenclature: | 0 (Soil) |
| Entry Date(s): | Date Created: 20260706 Date Completed: 20260804 Latest Revision: 20260805 |
| Update Code: | 20260806 |
| DOI: | 10.1093/jambio/lxag165 |
| PMID: | 42409358 |
| Βάση Δεδομένων: | MEDLINE |
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