Mycorrhization of Quercus mongolica seedlings by Tuber melanosporum alters root carbon exudation and rhizosphere bacterial communities

dc.contributor.authorWang, Yanliang
dc.contributor.authorWang, Ran
dc.contributor.authorLu, Bin
dc.contributor.authorGuerin‑Laguette, Alexis
dc.contributor.authorHe, Xinhua
dc.contributor.authorYu, Fuqiang
dc.date.accessioned2022-01-14T10:33:06Z
dc.date.available2022-01-14T10:33:06Z
dc.date.issued2021
dc.description.abstractTo study how ectomycorrhizas (ECMs) mediate plant performance and rhizosphere soil bacterial communities via altered physiological characteristics and root carbon exudation. Methods: Tuber melanosporum-colonized and uncolonized Quercus mongolica seedlings were grown on a substrate consisting of 41% peat, 41% pumice, 9% pine bark and 9% lime. Gas exchange fluorescence system, inductively coupled plasma atomic-emission spectrometer, high-performance liquid chromatography, gas chromatography and mass spectrometry, and 16S rRNA sequencing were used to analyze photosynthetic and nutritional characteristics, rhizosphere carbon exudates, and bacterial communities. Results: Tuber melanosporum mycorrhization increased leaf photosynthetic rate (69%), phosphorus concentration (94%), rhizosphere pH (0.4 units), rhizosphere acid phosphatase activity (33%) and total organic carbon (76%) in rhizosphere extracts but decreased leaf potassium concentration (26%) and rhizosphere organic anions (50%). Additionally, sugars including galactose were present in rhizosphere extract of colonized, but not uncolonized seedlings. Mycorrhization altered rhizosphere bacterial communities, with only ~ 10% operational taxonomic units (OTUs) shared between colonized and uncolonized seedlings; T. melanosporum colonized plants were enriched in actinobacteria. The differential abundances of other bacterial OTUs affected by T. melanosporum colonization were also correlated with variation in plant physiological and/or rhizosphere factors. Conclusion: Our results suggest that T. melanosporum ECM colonization may regulate carbon economy and rhizosphere bacterial communities of Q. mongolica seedlings grown in a previously sterilized peat-based substrate, to promote plant growth and nutrient cycling.ca_ES
dc.description.sponsorshipFunding text 1 We thank Yunnan High Level Talent Introduction Plan, as well as Fei Li, Liangliang Yue, Zhongfu Zhang, Wei Chang and Rui Yan for various supports. We also appreciate Prof. Gregory Bonito (Michigan State University) for careful reading and language editing. Funding text 2 This work was supported by Kunming Institute of Botany, CAS (Y9627111K1), National Natural Science Foundation of China (31901204) and Guizhou Science and Technology Program (No. 4002, 2018).ca_ES
dc.identifier.doihttps://doi.org/10.1007/s11104-021-05112-7
dc.identifier.issn0032-079X
dc.identifier.urihttp://hdl.handle.net/10459.1/72735
dc.language.isoengca_ES
dc.publisherSpringerca_ES
dc.relation.isformatofReproducció del document publicat a https://doi.org/10.1007/s11104-021-05112-7ca_ES
dc.relation.ispartofPlant and Soil, 2021, vol. 467, núm. 1-2, p. 391- 403ca_ES
dc.rightscc-by (c) Wang et al., 2021ca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_ES
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectCarbon assimilationca_ES
dc.subjectEctomycorrhizaca_ES
dc.subjectOakca_ES
dc.subjectPeatca_ES
dc.subjectPérigord black truffleca_ES
dc.subject.otherCarboni activatca_ES
dc.subject.otherBacterisca_ES
dc.subject.otherQuercus mongolicaca_ES
dc.subject.otherTuber melanosporumca_ES
dc.subject.otherCromatografia de gasosca_ES
dc.titleMycorrhization of Quercus mongolica seedlings by Tuber melanosporum alters root carbon exudation and rhizosphere bacterial communitiesca_ES
dc.typeinfo:eu-repo/semantics/articleca_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersionca_ES
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