Peiran Guo, Yazhou Hou, Bingbing Jia, Yuchen Wang, Chengyan Lu, Run Wang, Jiaying Lin, Yanan Zhang, Wei Guo, Frank Yonghong Li
{"title":"Arbuscular mycorrhizal fungi enhance Leymus chinensis resistance to salinity predominantly through regulating root endosphere bacteria","authors":"Peiran Guo, Yazhou Hou, Bingbing Jia, Yuchen Wang, Chengyan Lu, Run Wang, Jiaying Lin, Yanan Zhang, Wei Guo, Frank Yonghong Li","doi":"10.1007/s11104-024-07047-1","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Background and aims</h3><p><i>Leymus chinensis</i> is a promising grass species for restoring saline alkali grasslands, and its salt tolerance can be improved after inoculation with AMF. However, it is still unknown whether AMF can help plant adapt to saline stress by regulating plant associated microbiome of <i>L. chinensis</i>.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>Pot experiments were conducted to investigate the effects of <i>Rhizophagus intraradices</i> on the growth of <i>L. chinensis</i> in natural saline soil through determining physicochemical indicators included biomass, ion concentration, physiological characteristics, rhizosphere soil properties and bacterial communities in the rhizosphere, root and shoot endosphere.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>The results demonstrated that <i>R. intraradices</i> significantly increased the biomass of <i>L. chinensis</i> and had a positive impact on ion absorption balance and physiological regulation. More importantly, the beneficial bacteria within rhizosphere, root and shoot endosphere were enriched. The microbial interaction networks in the rhizosphere, root and shoot endosphere became more complex and modular, with the changes of keystone taxa. Moreover, the correlation between microbial and plant biomass indicators has been strengthened. Microbial interaction networks had more effect than microbial diversity in promoting plant growth. Compared with the rhizosphere and shoot endosphere bacteria, the root endosphere bacteria regulated by AMF plays a greater role in improving biomass of <i>L. chinensis</i>.</p><h3 data-test=\"abstract-sub-heading\">Conclusion</h3><p>Bacterial interaction patterns in the rhizosphere, root and shoot endosphere contribute to the growth of <i>L. chinensis</i> with AMF inoculation. Root bacterial community regulated by AMF play an important role in <i>L. chinensis</i> resistance to salinity.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\n","PeriodicalId":20223,"journal":{"name":"Plant and Soil","volume":null,"pages":null},"PeriodicalIF":3.9000,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plant and Soil","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1007/s11104-024-07047-1","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRONOMY","Score":null,"Total":0}
引用次数: 0
Abstract
Background and aims
Leymus chinensis is a promising grass species for restoring saline alkali grasslands, and its salt tolerance can be improved after inoculation with AMF. However, it is still unknown whether AMF can help plant adapt to saline stress by regulating plant associated microbiome of L. chinensis.
Methods
Pot experiments were conducted to investigate the effects of Rhizophagus intraradices on the growth of L. chinensis in natural saline soil through determining physicochemical indicators included biomass, ion concentration, physiological characteristics, rhizosphere soil properties and bacterial communities in the rhizosphere, root and shoot endosphere.
Results
The results demonstrated that R. intraradices significantly increased the biomass of L. chinensis and had a positive impact on ion absorption balance and physiological regulation. More importantly, the beneficial bacteria within rhizosphere, root and shoot endosphere were enriched. The microbial interaction networks in the rhizosphere, root and shoot endosphere became more complex and modular, with the changes of keystone taxa. Moreover, the correlation between microbial and plant biomass indicators has been strengthened. Microbial interaction networks had more effect than microbial diversity in promoting plant growth. Compared with the rhizosphere and shoot endosphere bacteria, the root endosphere bacteria regulated by AMF plays a greater role in improving biomass of L. chinensis.
Conclusion
Bacterial interaction patterns in the rhizosphere, root and shoot endosphere contribute to the growth of L. chinensis with AMF inoculation. Root bacterial community regulated by AMF play an important role in L. chinensis resistance to salinity.
期刊介绍:
Plant and Soil publishes original papers and review articles exploring the interface of plant biology and soil sciences, and that enhance our mechanistic understanding of plant-soil interactions. We focus on the interface of plant biology and soil sciences, and seek those manuscripts with a strong mechanistic component which develop and test hypotheses aimed at understanding underlying mechanisms of plant-soil interactions. Manuscripts can include both fundamental and applied aspects of mineral nutrition, plant water relations, symbiotic and pathogenic plant-microbe interactions, root anatomy and morphology, soil biology, ecology, agrochemistry and agrophysics, as long as they are hypothesis-driven and enhance our mechanistic understanding. Articles including a major molecular or modelling component also fall within the scope of the journal. All contributions appear in the English language, with consistent spelling, using either American or British English.