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SeqCode facilitates naming of South African rhizobia left in limbo.
- Source :
-
Systematic and applied microbiology [Syst Appl Microbiol] 2024 May; Vol. 47 (2-3), pp. 126504. Date of Electronic Publication: 2024 Mar 25. - Publication Year :
- 2024
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Abstract
- South Africa is well-known for the diversity of its legumes and their nitrogen-fixing bacterial symbionts. However, in contrast to their plant partners, remarkably few of these microbes (collectively referred to as rhizobia) from South Africa have been characterised and formally described. This is because the rules of the International Code of Nomenclature of Prokaryotes (ICNP) are at odds with South Africa's National Environmental Management: Biodiversity Act and its associated regulations. The ICNP requires that a culture of the proposed type strain for a novel bacterial species be deposited in two international culture collections and be made available upon request without restrictions, which is not possible under South Africa's current national regulations. Here, we describe seven new Mesorhizobium species obtained from root nodules of Vachellia karroo, an iconic tree legume distributed across various biomes in southern Africa. For this purpose, 18 rhizobial isolates were delineated into putative species using genealogical concordance, after which their plausibility was explored with phenotypic characters and average genome relatedness. For naming these new species, we employed the rules of the recently published Code of Nomenclature of Prokaryotes described from Sequence Data (SeqCode), which utilizes genome sequences as nomenclatural types. The work presented in this study thus provides an illustrative example of how the SeqCode allows for a standardised approach for naming cultivated organisms for which the deposition of a type strain in international culture collections is currently problematic.<br />Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.<br /> (Copyright © 2024 The Author(s). Published by Elsevier GmbH.. All rights reserved.)
- Subjects :
- South Africa
RNA, Ribosomal, 16S genetics
Sequence Analysis, DNA
Terminology as Topic
Genome, Bacterial genetics
DNA, Bacterial genetics
Symbiosis
Rhizobium classification
Rhizobium genetics
Rhizobium physiology
Phylogeny
Root Nodules, Plant microbiology
Mesorhizobium classification
Mesorhizobium genetics
Mesorhizobium physiology
Mesorhizobium isolation & purification
Fabaceae microbiology
Subjects
Details
- Language :
- English
- ISSN :
- 1618-0984
- Volume :
- 47
- Issue :
- 2-3
- Database :
- MEDLINE
- Journal :
- Systematic and applied microbiology
- Publication Type :
- Academic Journal
- Accession number :
- 38593622
- Full Text :
- https://doi.org/10.1016/j.syapm.2024.126504