Biodiversity and chemotaxonomy of Preussia isolates from the Iberian Peninsula

González-Menéndez, Víctor; Martín, Jesús; Siles, J.A.; González-Tejero, M. Reyes; Reyes, Fernando; Platas, Gonzalo; Tormo, José R.; Genilloud, Olga

doi:10.1007/s11557-017-1305-1

Cited by 39 publications

(48 citation statements)

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“…In the grassdominated plots, we also detected a high abundance of the fungal saprophyte Preussia africana (OTU 14). This particular taxon has recently gained considerable attention due to its production of bioactive secondary metabolites, which are typically involved in defence mechanisms against other competing microbes (Bills et al 2013;Gonzalez-Menendez et al 2017;Zhang et al 2012). Contrary to the grasses, forb plant communities showed an increase in saprophytic fungi affiliated to Xylariales and Agaricales orders, as already reported by Cline et al (2018).…”

Section: Plant Functional Group Composition Affects Rasf Community Stmentioning

confidence: 64%

Plant functional group drives the community structure of saprophytic fungi in a grassland biodiversity experiment

et al. 2020

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Aims Saprophytic fungi are important agents of soil mineralization and carbon cycling. Their community structure is known to be affected by soil conditions such as organic matter and pH. However, the effect of plant species, whose roots provide the litter input into the soil, on the saprophytic fungal community is largely unknown. Methods We examined the saprophytic fungi in a grassland biodiversity experiment with eight plant species belonging to two functional groups (grasses and forbs), combining DNA extraction from plant roots, nextgeneration sequencing and literature research. Results We found that saprophyte richness increased with plant species richness, but plant functional group richness was the best predictor. Plant functional group was also the main factor driving fungal saprophytic community structure. This effect was correlated with differences in root lignin content and C:N ratio between grasses and forbs. In monocultures, root traits and plant functional group type explained 16% of the variation in

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Section: Plant Functional Group Composition Affects Rasf Community Stmentioning

confidence: 64%

Plant functional group drives the community structure of saprophytic fungi in a grassland biodiversity experiment

et al. 2020

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“…For PCR amplification of the ITS1 to 5.8S-ITS2 sequences and of the 28S rRNA gene (initial 600 nucleotides) sequence, the 18S3 (56) and NL4 primers (57) were used as previously described (56).…”

Section: Methodsmentioning

confidence: 99%

“…Phylogenetic analysis. Species and genus affinities of fungi were inferred in a Bayesian analysis as previously described (56).…”

Section: Methodsmentioning

confidence: 99%

Unveiling Concealed Functions of Endosymbiotic Bacteria Harbored in the Ascomycete Stachylidium bicolor

Almeida

Pereira

González-Menéndez

et al. 2018

Appl Environ Microbiol

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Among the plethora of unusual secondary metabolites isolated fromStachylidium bicolorare the tetrapeptidic endolides A and B. Both tetrapeptides contain 3-(3-furyl)-alanine residues, previously proposed to originate from bacterial metabolism. Inspired by this observation, we aimed to identify the presence of endosymbiotic bacteria inS. bicolorand to discover the true producer of the endolides. The endobacteriumBurkholderia contaminanswas initially detected by 16S rRNA gene amplicon sequencing from the fungal metagenome and was subsequently isolated. It was confirmed that the tetrapeptides were produced by the axenicB. contaminansonly when in latency. Fungal colonies unable to produce conidia and the tetrapeptides were isolated and confirmed to be free ofB. contaminans. A second endosymbiont identified as related toSphingomonas leidyiwas also isolated.In situimaging of the mycelium supported an endosymbiotic relationship betweenS. bicolorand the two endobacteria. Besides the technical novelty, ourin situanalyses revealed that the two endobacteria are compartmentalized in defined fungal cells, prevailing mostly in latency when in symbiosis. Within the emerging field of intracellular bacterial symbioses, fungi are the least studied eukaryotic hosts. Our study further supports the Fungi as a valuable model for understanding endobacterial symbioses in eukaryotes.IMPORTANCEThe discovery of two bacterial endosymbionts harbored inStachylidium bicolormycelium,Burkholderia contaminansandSphingomonas leidyi, is described here. Production of tetrapeptides inside the mycelium is ensured byB. contaminans, and fungal sporulation is influenced by the endosymbionts. Here, we illustrate the bacterial endosymbiotic origin of secondary metabolites in an Ascomycota host.

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“…The species treated herein, P. africana, was proposed by Arenal et al (2005) based on morphological and molecular analyses of a series of isolates of the genus Preussia from different substrates, such as goat dung, zebra dung and Viburnum tinus L. leaves. Furthermore, P. africana has been isolated as an endophytic fungus from different plant species (Brum et al 2012;Gonzalez-Menendez et al 2017). Phylogenetic analysis (Fig.…”

Section: Preussia Africanamentioning

confidence: 99%

Mycological Diversity Description II

et al. 2019

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Here, Diaporthe myracrodruonis is introduced as new species from Brazil, isolated as endophyte from Myracrodruon urundeuva. Asterina mandaquiensis is epitypified and ilustrated for the first time. Serpula similis is reported as new to the Neotropics, while Perenniporia centrali-africana is reported for the first time as endophyte and Preussia africana as endophyte from Spondias tuberosa in Caatinga in Brazil.

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Biodiversity and chemotaxonomy of Preussia isolates from the Iberian Peninsula

Cited by 39 publications

References 63 publications

Plant functional group drives the community structure of saprophytic fungi in a grassland biodiversity experiment

Plant functional group drives the community structure of saprophytic fungi in a grassland biodiversity experiment

Unveiling Concealed Functions of Endosymbiotic Bacteria Harbored in the Ascomycete Stachylidium bicolor

Mycological Diversity Description II

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