Draft Genome Sequence of the Bacteriocin-Producing Bradyrhizobium japonicum Strain FN1

Kohlmeier, MacLean G.; Yudistira, Harry; Zhang, Xiang Li; Fristensky, Brian; Levin, David B.; Sparling, Richard; Oresnik, Ivan J.

doi:10.1128/genomea.00812-15

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…The nearest match for FN1 was B. japonicum, BRJ-16 was tentatively identified as B. yuanmingense. FN1was subsequently sequenced and a more thorough analysis confirmed that it was a B. japonicum strain (Kohlmeier et al 2015;Ormeño-Orrillo and Martinez-Romero 2019).…”

Section: Local Bradyrhizobium Isolates Produce Zones Of Inhibitionmentioning

confidence: 99%

“…Since symbiotic genes are commonly carried on mobile symbiotic islands, a genetic transfer of a symbiotic island to native bradyrhizobial strains can result in a future competition for nodule occupancy problem. To this end, we isolated and sequenced the B. japonicum strain FN1 from field soil in Manitoba (Kohlmeier et al 2015). Here we present a genomic approach to facilitate a functional search for genes in FN1encoding for antagonistic traits that could be useful in addressing this problem.…”

Section: R a F Tmentioning

confidence: 99%

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Bradyrhizobium japonicum FN1 produces an inhibitory substance that affects competition for nodule occupancy

et al. 2022

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Bacteriocins are narrow spectrum antibiotics of bacterial origin that can affect competition in resource-limited environments such as the rhizosphere. Therefore, bacteriocins may be good candidates for manipulation in order to generate more competitive inocula for soybean. In this study, B. japonicum FN1 along with other Bradyrhizobia in our culture collection were screened for bacteriocin-like activity. A total of five distinct inhibitory activities could be observed. FN1 genes putatively involved in bacteriocin production were computationally identified. These genes were mutagenized and the subsequent strains were screened for loss of inhibitory activity. Mutant strain BRJ-48, with an insert in bjfn1_01204, displayed a loss of the ability to inhibit an indicator strain. This loss could be complemented by the introduction of a plasmid expressing bjfn1_01204 in trans. The strain carrying the mutation did not affect competition in broth cultures, but was shown to be less competitive for nodule occupancy. Annotation suggests that bjfn1_01204 encodes a carboxymuconolactone decarboxylase, however the direct contribution of how this enzyme contributes to inhibiting the tester strain remains unknown.

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Section: Local Bradyrhizobium Isolates Produce Zones Of Inhibitionmentioning

confidence: 99%

Section: R a F Tmentioning

confidence: 99%

Bradyrhizobium japonicum FN1 produces an inhibitory substance that affects competition for nodule occupancy

et al. 2022

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Bacteria-Inducing Legume Nodules Involved in the Improvement of Plant Growth, Health and Nutrition

Velázquez

Carro

Flores-Félix

et al. 2019

Microbiome in Plant Health and Disease

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Bacteria-inducing legume nodules are known as rhizobia and belong to the class Alphaproteobacteria and Betaproteobacteria. They promote the growth and nutrition of their respective legume hosts through atmospheric nitrogen fixation which takes place in the nodules induced in their roots or stems. In addition, rhizobia have other plant growth-promoting mechanisms, mainly solubilization of phosphate and production of indoleacetic acid, ACC deaminase and siderophores. Some of these mechanisms have been reported for strains of rhizobia which are also able to promote the growth of several nonlegumes, such as cereals, oilseeds and vegetables. Less studied are the mechanisms that have the rhizobia to promote the plant health; however, these bacteria are able to exert biocontrol of some phytopathogens and to induce the plant resistance. In this chapter, we revised the available data about the ability of the legume noduleinducing bacteria for improving the plant growth, health and nutrition of both legumes and nonlegumes. These data showed that rhizobia meet all the requirements of sustainable agriculture to be used as bio-inoculants allowing the total or partial replacement of chemicals used for fertilization or protection of crops.

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Use of an abscisic acid-producing Bradyrhizobium japonicum isolate as biocontrol agent against bacterial wilt disease caused by Ralstonia solanacearum

2022

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Draft Genome Sequence of the Bacteriocin-Producing Bradyrhizobium japonicum Strain FN1

Cited by 3 publications

References 17 publications

Bradyrhizobium japonicum FN1 produces an inhibitory substance that affects competition for nodule occupancy

Bradyrhizobium japonicum FN1 produces an inhibitory substance that affects competition for nodule occupancy

Bacteria-Inducing Legume Nodules Involved in the Improvement of Plant Growth, Health and Nutrition

Use of an abscisic acid-producing Bradyrhizobium japonicum isolate as biocontrol agent against bacterial wilt disease caused by Ralstonia solanacearum

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