ArticleSpringerPlus2016
Bacteria of the genus Rhodopseudomonas (Bradyrhizobiaceae): obligate symbionts in mycelial cultures of the black truffles Tuber melanosporum and Tuber brumale.
Article in SpringerPlus, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 26 citations in OpenAlex.
- High-throughput sequencing reveals endophytic bacterial differentiation of common truffles (Microbiology spectrum · 2026Article
- Bacterial communities show distinctive spatial diversity patterns in productive truffle orchards amended with peat-based substrate.Environmental microbiome · 2026Article
- Advances in molecular genetics have increased knowledge of Tuber species' life cycle and population genetic structure, indicating ways to improve yield.Mycorrhiza · 2024Review
- In vitro interactions between Bradyrhizobium spp. and Tuber magnatum mycelium.Environmental microbiology reports · 2024Article
- Effect of Bacteria Inoculation on Colonization of Roots byPlants (Basel, Switzerland) · 2024Article
- Management of Plant Beneficial Fungal Endophytes to Improve the Performance of Agroecological Practices.Journal of fungi (Basel, Switzerland) · 2022Review
- Life Cycle and Phylogeography of True Truffles.Genes · 2022Review
- Black Truffles AffectFrontiers in microbiology · 2022Article
- Phylogenetic placements and cultural characteristics ofMycoscience · 2021Article
- Article
- Chinese Black Truffle-Associated Bacterial Communities ofFrontiers in microbiology · 2019Article
- A Genomotaxonomy View of theFrontiers in microbiology · 2019Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThis work aimed at characterizing 12 isolates of the genus Tuber including Tuber melanosporum (11 isolates) and Tuber brumale (one isolate). This was done using internal transcribed spacer (ITS) sequences, confirming their origin.
resultsAnalysis of their mating type revealed that both MAT1-1 and MAT1-2 exist within these isolates (with 3 and 8 of each, respectively). We observed that each of these cultures was consistently associated with one bacterium that was intimately linked to fungal growth. These bacterial associates failed to grow in the absence of fungus. We extracted DNA from bacterial colonies in the margin of mycelium and sequenced a nearly complete 16S rDNA gene and a partial ITS fragment. We found they all belonged to the genus Rhodopseudomonas, fitting within different phylogenetic clusters. No relationships were evidenced between bacterial and fungal strains or mating types. Rhodopseudomonas being a sister genus to Bradyrhizobium, we tested the nodulation ability of these bacteria on a promiscuously nodulating legume (Acacia mangium), without success. We failed to identify any nifH genes among these isolates, using two different sets of primers.
conclusionsWhile the mechanisms of interaction between Tuber and Rhodopseudomonas remain to be elucidated, their interdependency for in vitro growth seems a novel feature of this fungus.
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