ArticleThe ISME journal2016
Non-pathogenic Rhizobium radiobacter F4 deploys plant beneficial activity independent of its host Piriformospora indica.
Article in The ISME journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.
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Who cites it
38 citing papers in PubMed, 96 citations in OpenAlex.
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- A pipeline for validation of Serendipita indica effector-like sRNA suggests cross-kingdom communication in the symbiosis with Arabidopsis.Journal of experimental botany · 2025Article
- Birmingham-group IncP-1Microbial genomics · 2025Article
- Exploring the Potential of Bacterial Endophytes in Plant Disease Management.Current microbiology · 2024Review
- Impact of host species on assembly, composition, and functional profiles of phycosphere microbiomes.mSystems · 2024Article
- Quorum sensing-related activities of beneficial and pathogenic bacteria have important implications for plant and human health.FEMS microbiology ecology · 2024Review
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- Genome analysis and hyphal movement characterization of the hitchhiker endohyphalApplied and environmental microbiology · 2024Article
- Effects of Inoculation with Stress-Tolerant Rhizobia on the Response of Alfalfa (Plants (Basel, Switzerland) · 2023Article
- The endohyphal microbiome: current progress and challenges for scaling down integrative multi-omic microbiome research.Microbiome · 2023Article
- Microbiomes of bloom-forming Phaeocystis algae are stable and consistently recruited, with both symbiotic and opportunistic modes.The ISME journal · 2022Article
- Endofungal Rhizobium species enhance arsenic tolerance in colonized host plant under arsenic stress.Archives of microbiology · 2022Article
- Article
- The fungal root endophyte Serendipita vermifera displays inter-kingdom synergistic beneficial effects with the microbiota in Arabidopsis thaliana and barley.The ISME journal · 2022Article
- The major plant sphingolipid long chain base phytosphingosine inhibits growth of bacterial and fungal plant pathogens.Scientific reports · 2022Article
- Plant Growth-Promoting Ability of MycorrhizalFrontiers in microbiology · 2022Article
- Importance ofPathogens (Basel, Switzerland) · 2021Article
- Article
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Authors and funding
12 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Alphaproteobacterium Rhizobium radiobacter F4 (RrF4) was originally characterized as an endofungal bacterium in the beneficial endophytic Sebacinalean fungus Piriformospora indica. Although attempts to cure P. indica from RrF4 repeatedly failed, the bacterium can easily be grown in pure culture. Here, we report on RrF4's genome and the beneficial impact the free-living bacterium has on plants. In contrast to other endofungal bacteria, the genome size of RrF4 is not reduced. Instead, it shows a high degree of similarity to the plant pathogenic R. radiobacter (formerly: Agrobacterium tumefaciens) C58, except vibrant differences in both the tumor-inducing (pTi) and the accessor (pAt) plasmids, which can explain the loss of RrF4's pathogenicity. Similar to its fungal host, RrF4 colonizes plant roots without host preference and forms aggregates of attached cells and dense biofilms at the root surface of maturation zones. RrF4-colonized plants show increased biomass and enhanced resistance against bacterial leaf pathogens. Mutational analysis showed that, similar to P. indica, resistance mediated by RrF4 was dependent on the plant's jasmonate-based induced systemic resistance (ISR) pathway. Consistent with this, RrF4- and P. indica-induced pattern of defense gene expression were similar. In clear contrast to P. indica, but similar to plant growth-promoting rhizobacteria, RrF4 colonized not only the root outer cortex but also spread beyond the endodermis into the stele. On the basis of our findings, RrF4 is an efficient plant growth-promoting bacterium.
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