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Tytuł pozycji:

Proposal of ' Candidatus Frankia alpina', the uncultured symbiont of Alnus alnobetula and A. incana that forms spore-containing nitrogen-fixing root nodules.

Tytuł:
Proposal of ' Candidatus Frankia alpina', the uncultured symbiont of Alnus alnobetula and A. incana that forms spore-containing nitrogen-fixing root nodules.
Autorzy:
Pozzi ACM; Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France.
Herrera-Belaroussi A; Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France.
Schwob G; Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France.
Bautista-Guerrero HH; Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France.
Bethencourt L; Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France.
Fournier P; Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France.
Dubost A; Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France.
Abrouk D; Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France.
Normand P; Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France.
Fernandez MP; Université de Lyon, F-69622, Lyon, France; Université Lyon 1, Villeurbanne, CNRS, UMR5557, Ecologie Microbienne, Villeurbanne, France; INRA, UMR1418, Villeurbanne, France.
Źródło:
International journal of systematic and evolutionary microbiology [Int J Syst Evol Microbiol] 2020 Oct; Vol. 70 (10), pp. 5453-5459. Date of Electronic Publication: 2020 Sep 10.
Typ publikacji:
Journal Article
Język:
English
Imprint Name(s):
Publication: 2015- : London : Microbiology Society
Original Publication: Reading, UK : Society for General Microbiology, c2000-
MeSH Terms:
Nitrogen Fixation*
Phylogeny*
Alnus/*microbiology
Frankia/*classification
Root Nodules, Plant/*microbiology
Bacterial Typing Techniques ; Magnoliopsida/microbiology ; Symbiosis
Contributed Indexing:
Keywords: Symbiotic; alder; spores
Entry Date(s):
Date Created: 20200910 Date Completed: 20201109 Latest Revision: 20201109
Update Code:
20240105
DOI:
10.1099/ijsem.0.004433
PMID:
32910750
Czasopismo naukowe
The members of the genus Frankia are, with a few exceptions, a group of nitrogen-fixing symbiotic actinobacteria that nodulate mostly woody dicotyledonous plants belonging to three orders, eight families and 23 genera of pioneer dicots. These bacteria have been characterized phylogenetically and grouped into four molecular clusters. One of the clusters, cluster 1 contains strains that induce nodules on Alnus spp. ( Betulaceae ), Myrica spp., Morella spp. and Comptonia spp. ( Myricaceae ) that have global distributions. Some of these strains produce not only hyphae and vesicles, as other cluster 1 strains do, but also numerous sporangia in their host symbiotic tissues, hence their phenotype being described as spore-positive (Sp+). While Sp+ strains have resisted repeated attempts at cultivation, their genomes have recently been characterized and found to be different from those of all described species, being markedly smaller than their phylogenetic neighbours. We thus hereby propose to create a ' Candidatus Frankia alpina' species for some strains present in nodules of Alnus alnobetula and A. incana that grow in alpine environments at high altitudes or in subarctic environments at high latitudes.

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