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Protachevicz AP, Paulitsch F, Klepa MS, Hainosz J, Olchanheski LR, Hungria M, Stefania da Silva Batista J. Pioneering Desmodium spp. are nodulated by natural populations of stress-tolerant alpha- and beta-rhizobia. Braz J Microbiol 2023; 54:3127-3135. [PMID: 37673840 PMCID: PMC10689651 DOI: 10.1007/s42770-023-01113-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 08/23/2023] [Indexed: 09/08/2023] Open
Abstract
The rhizobia-Desmodium (Leguminosae, Papilionoideae) symbiosis is generally described by its specificity with alpha-rhizobia, especially with Bradyrhizobium. Our study aimed to isolate rhizobia from root nodules of native D. barbatum, D. incanum, and D. discolor, collected in remnants of the biomes of Atlantic Forest and Cerrado in protected areas of the Paraná State, southern Brazil. Based on the 16S rRNA phylogeny, 18 out of 29 isolates were classified as Alphaproteobacteria (Bradyrhizobium and Allorhizobium/Rhizobium) and 11 as Betaproteobacteria (Paraburkholderia). Phylogeny of the recA gene of the alpha-rhizobia resulted in ten main clades, of which two did not group with any described rhizobial species. In the 16S rRNA phylogeny of the beta-rhizobia, Paraburkholderia strains from the same host and conservation unity occupied the same clade. Phenotypic characterization of representative strains revealed the ability of Desmodium rhizobia to grow under stressful conditions such as high temperature, salinity, low pH conditions, and tolerance of heavy metals and xenobiotic compounds. Contrasting with previous reports, our results revealed that Brazilian native Desmodium can exploit symbiotic interactions with stress-tolerant strains of alpha- and beta-rhizobia. Stress tolerance can highly contribute to the ecological success of Desmodium in this phytogeographic region, possibly relating to its pioneering ability in Brazil. We propose Desmodium as a promising model for studies of plant-rhizobia interactions.
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Affiliation(s)
- Ana Paolla Protachevicz
- Departamento de Biologia Estrutural, Molecular E Genética, Universidade Estadual de Ponta Grossa, C.P. 6001, Ponta Grossa, PR, 84030-900, Brazil
| | - Fabiane Paulitsch
- Departamento de Biologia Estrutural, Molecular E Genética, Universidade Estadual de Ponta Grossa, C.P. 6001, Ponta Grossa, PR, 84030-900, Brazil
| | | | - Jessica Hainosz
- Departamento de Biologia Estrutural, Molecular E Genética, Universidade Estadual de Ponta Grossa, C.P. 6001, Ponta Grossa, PR, 84030-900, Brazil
| | - Luiz Ricardo Olchanheski
- Departamento de Biologia Estrutural, Molecular E Genética, Universidade Estadual de Ponta Grossa, C.P. 6001, Ponta Grossa, PR, 84030-900, Brazil
| | | | - Jesiane Stefania da Silva Batista
- Departamento de Biologia Estrutural, Molecular E Genética, Universidade Estadual de Ponta Grossa, C.P. 6001, Ponta Grossa, PR, 84030-900, Brazil.
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Vincent B, Hannibal L, Galiana A, Ducousso M, Jourand P. Respective and combined roles of rhizobia and ectomycorrhizal fungi in the plant growth, symbiotic efficiency, nutrients and metals contents of a leguminous tree species growing on ultramafic soils. Symbiosis 2022. [DOI: 10.1007/s13199-022-00850-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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The widely distributed legume tree Vachellia (Acacia) nilotica subsp. indica is nodulated by genetically diverse Ensifer strains in India. Symbiosis 2019. [DOI: 10.1007/s13199-019-00658-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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