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The diversity of bradyrhizobium and mesorhizobium strains associated with root nodules of selected indigenous SA legumes
Dissertation (MSc (Microbiology))--University of Pretoria, 2022.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2022
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| _version_ | 1867613671295811584 |
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| access_status_str | Open Access |
| author2 | Venter, S.N. (Stephanus Nicolaas) |
| author_browse | Venter, S.N. (Stephanus Nicolaas) |
| author_facet | Venter, S.N. (Stephanus Nicolaas) |
| collection | Thesis |
| dc_rights_str_mv | © 2022 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MSc (Microbiology))--University of Pretoria, 2022. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/86147 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:39:51.199Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/86147 The diversity of bradyrhizobium and mesorhizobium strains associated with root nodules of selected indigenous SA legumes Venter, S.N. (Stephanus Nicolaas) mabodiba.maake@up.ac.za Steenkamp, Emma Theodora Maake, Mabodiba Masutane Phylogeography Bradyrhizobium Indigenous legumes Mesorhizobium Genisteae Rhizobia UCTD Dissertation (MSc (Microbiology))--University of Pretoria, 2022. This study provides clarity on the evolutionary history and distribution of the Genisteae tribe as well as the associated rhizobia, with a focus on the southern African Genisteae. The diversity and evolutionary histories of Bradyrhizobium and Mesorhizobium strains associated with selected indigenous South African Genisteae (specifically Argyrolobium, Melolobium, and Dichilus) was investigated, in addition to the evolutionary histories of their symbiotic loci (nodA and nifH). Sequence comparisons showed that most strains belong to Mesorhizobium (i.e., 40 strains), while 18 strains represented Bradyrhizobium isolated from nodules of A. rupestre, A. sericeum, A. harveyanum and A. robustum, while a strain of Rhizobium was obtained from a Melolobium sp. Two novel Bradyrhizobium species were described, in addition to several putatively novel Mesorhizobium strains. Taken together, our findings thus show that Genisteae indigenous to South Africa are more likely to be nodulated by Mesorhizobium than Bradyrhizobium, although it would appear that there are novel lineages of Bradyrhizobium capable of interacting with these legumes. The financial assistance of the National Research Foundation (NRF) Grant under Prof. S.N Venter towards this research is hereby acknowledged. This research was partially supported by the DSI-NRF Centre of Excellence in Plant Health Biotechnology (CPHB) in the Department of Science and Innovation (DSI) and Tree Protection Co-operative Programme (TPCP) at the Forestry and Agricultural Biotechnology Institute (FABI). Microbiology and Plant Pathology MSc (Microbiology) Unrestricted 2022-07-13T13:30:04Z 2022-07-13T13:30:04Z 2022-09 2022-07 Dissertation Maake MM, Avontuur JR, Beukes CW, Steenkamp ET, Venter SN, 2022, The diversity of Bradyrhizobium and Mesorhizobium strains associated with root nodules of selected indigenous SA legumes, MSc Dissertation, University of Pretoria https://repository.up.ac.za/handle/2263/86147 S2022 https://repository.up.ac.za/handle/2263/86147 10.25403/UPresearchdata.20290647 en © 2022 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | Phylogeography Bradyrhizobium Indigenous legumes Mesorhizobium Genisteae Rhizobia UCTD The diversity of bradyrhizobium and mesorhizobium strains associated with root nodules of selected indigenous SA legumes |
| title | The diversity of bradyrhizobium and mesorhizobium strains associated with root nodules of selected indigenous SA legumes |
| title_full | The diversity of bradyrhizobium and mesorhizobium strains associated with root nodules of selected indigenous SA legumes |
| title_fullStr | The diversity of bradyrhizobium and mesorhizobium strains associated with root nodules of selected indigenous SA legumes |
| title_full_unstemmed | The diversity of bradyrhizobium and mesorhizobium strains associated with root nodules of selected indigenous SA legumes |
| title_short | The diversity of bradyrhizobium and mesorhizobium strains associated with root nodules of selected indigenous SA legumes |
| title_sort | diversity of bradyrhizobium and mesorhizobium strains associated with root nodules of selected indigenous sa legumes |
| topic | Phylogeography Bradyrhizobium Indigenous legumes Mesorhizobium Genisteae Rhizobia UCTD |
| url | https://repository.up.ac.za/handle/2263/86147 |