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Journal articles on the topic 'Native rhizobia'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Castellano-Hinojosa, Antonio, Christoph Mora, and Sarah L. Strauss. "Native Rhizobia Improve Plant Growth, Fix N2, and Reduce Greenhouse Emissions of Sunnhemp More than Commercial Rhizobia Inoculants in Florida Citrus Orchards." Plants 11, no. 22 (2022): 3011. http://dx.doi.org/10.3390/plants11223011.

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Sunnhemp (Crotalaria juncea L.) is an important legume cover crop used in tree cropping systems, where there is increased interest by growers to identify rhizobia to maximize soil nitrogen (N) inputs. We aimed to isolate and identify native rhizobia and compare their capabilities with non-native rhizobia from commercial inoculants to fix atmospheric dinitrogen (N2), produce and reduce nitrous oxide (N2O), and improve plant growth. Phylogenetic analyses of sequences of the 16S rRNA and recA, atpD, and glnII genes showed native rhizobial strains belonged to Rhizobium tropici and the non-native s

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Materon, L. A., J. D. H. Keatinge, D. P. Beck, N. Yurtsever, K. Karuc, and S. Altuntas. "The Role of Rhizobial Biodiversity in Legume Crop Productivity in the West Asian Highlands." Experimental Agriculture 31, no. 4 (1995): 485–91. http://dx.doi.org/10.1017/s0014479700026466.

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SUMMARYThe native rhizobia capable of symbiosis with annually-sown food and forage legume crops in the Turkish highlands were surveyed and estimates made of the numbers and nitrogen fixing efficiency of native Rhizobium leguminosarum with Turkish cultivars of lentil (Lens culinaris Medik.) and vetch (Vicia sativa L.). Native rhizobia were present in medium to high numbers in most samples but the nitrogen fixation efficiency of at least half of the isolates was poor. Vetch was somewhat less specific in its rhizobial compatibility than lentil, suggesting a potential for artificial inoculation to

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Andrews, M., D. Jack, D. Dash, and S. Brown. "Which rhizobia nodulate which legumes in New Zealand soils?" Journal of New Zealand Grasslands 77 (January 1, 2015): 281–86. http://dx.doi.org/10.33584/jnzg.2015.77.465.

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Recent work which genotypically characterised rhizobia of native, crop and weed legumes in New Zealand and examined their cross-nodulation ability is reviewed and related to earlier work with focus on New Zealand pasture systems. The New Zealand native legumes were exclusively effectively nodulated by novel strains of Mesorhizobium which did not nodulate crop or weed legumes. Clovers, lucerne, Lotus and grain legumes were effectively nodulated by different genera, species and biovars of rhizobia primarily originating from inoculum. Rhizobial symbionts of white clover have established over wide

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Zhang, Junjie, Jingqi Wang, Yufeng Feng, Brigitte Brunel, and Xuxiao Zong. "Unearthing Optimal Symbiotic Rhizobia Partners from the Main Production Area of Phaseolus vulgaris in Yunnan." International Journal of Molecular Sciences 25, no. 15 (2024): 8511. http://dx.doi.org/10.3390/ijms25158511.

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Phaseolus vulgaris is a globally important legume cash crop, which can carry out symbiotic nitrogen fixation with rhizobia. The presence of suitable rhizobia in cultivating soils is crucial for legume cropping, especially in areas beyond the plant-host native range, where soils may lack efficient symbiotic partners. We analyzed the distribution patterns and traits of native rhizobia associated with P. vulgaris in soils of Yunnan, where the common bean experienced a recent expansion. A total of 608 rhizobial isolates were tracked from soils of fifteen sampling sites using two local varieties of

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Prévost and E. S P. Bromfield, D. "Diversity of symbiotic rhizobia resident in Canadian soils." Canadian Journal of Soil Science 83, Special Issue (2003): 311–19. http://dx.doi.org/10.4141/s01-066.

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The dependency of agriculture on nitrogen fertilizer inputs is associated with adverse effects on the environment and human health. The importance of biological nitrogen fixation by rhizobia in symbiotic association with legumes is underscored by its potential to reduce or replace chemical fertilizer inputs. This paper reviews research on the diversity of the symbiotic rhizobia resident in Canadian soils. Research has focussed on phenotypic and genotypic variation (e.g., nitrogen fixing efficacy, nodulating competitiveness, host range, adaptation to cool climate) within rhizobial species with

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Khanna, Veena, Simmi Simmi, Poonam Sharma, Chintu Jindal, and A. K. Saxena. "Efficacy of native phosphate-solubilizing rhizobia on symbiotic parameters and grain yield in fieldpea (Pisum sativum)." Indian Journal of Agricultural Sciences 82, no. 9 (2012): 818–20. http://dx.doi.org/10.56093/ijas.v82i9.23839.

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The native P-solubilizing rhizobial isolates R1 and R2 enhanced nodule number and dry weight, root and shoot dry weight, chlorophyll, N and P content and grain yield as compared to non P- solubilizing rhizobia. Native rhizobia R1 and R2 along with P @ 40 kg P2O5/ha were found to augment the efficiency of applied P which enhanced symbiotic parameters and significantly improved yields of fieldpea.

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Weir, Bevan S., Susan J. Turner, Warwick B. Silvester, Duck-Chul Park, and John M. Young. "Unexpectedly Diverse Mesorhizobium Strains and Rhizobium leguminosarum Nodulate Native Legume Genera of New Zealand, while Introduced Legume Weeds Are Nodulated by Bradyrhizobium Species." Applied and Environmental Microbiology 70, no. 10 (2004): 5980–87. http://dx.doi.org/10.1128/aem.70.10.5980-5987.2004.

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ABSTRACT The New Zealand native legume flora are represented by four genera, Sophora, Carmichaelia, Clianthus, and Montigena. The adventive flora of New Zealand contains several legume species introduced in the 19th century and now established as serious invasive weeds. Until now, nothing has been reported on the identification of the associated rhizobia of native or introduced legumes in New Zealand. The success of the introduced species may be due, at least in part, to the nature of their rhizobial symbioses. This study set out to address this issue by identifying rhizobial strains isolated

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NAIN, POOJA, NEHA SAINI, GEETANJALI BHANDARI, and K. P. RAVERKAR. "Enumeration of Native Rhizobial Population Nodulating Phaseolus vulgaris of North-western Himalaya." Journal of Advances in Biology & Biotechnology 28, no. 2 (2025): 606–14. https://doi.org/10.9734/jabb/2025/v28i22020.

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Optimal native rhizobial population required for efficient nodulation of Phaseolus vulgaris, leading to maximum dry matter production and nitrogen accumulation in legume crops. Notably, there has been limited investigation into, especially in the NWH region of Uttarakhand. To address this, the study employed the Most Probable Number technique across 12 sites in 5 districts of Uttarakhand. The results revealed a wide range of rhizobia populations, ranging from less than 1 x 102/g of soil to 3.1 x 104/g of soil. These varying number of rhizobia were found in perfect corelation with the organic c

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Kawaka, Fanuel, Mathews M. Dida, Peter A. Opala, et al. "Symbiotic Efficiency of Native Rhizobia Nodulating Common Bean (Phaseolus vulgaris L.) in Soils of Western Kenya." International Scholarly Research Notices 2014 (November 11, 2014): 1–8. http://dx.doi.org/10.1155/2014/258497.

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This study was conducted to determine the abundance and symbiotic efficiency of native rhizobia nodulating common bean in Kisumu and Kakamega, Kenya. Soil sampling was carried out in three farms that had been used for growing common bean for at least two seasons and one fallow land with no known history of growing common bean or inoculation. Abundance of soil rhizobia and symbiotic efficiency (SE) were determined in a greenhouse experiment. Native rhizobia populations ranged from 3.2×101 to 3.5×104 cells per gram of soil. Pure bacterial cultures isolated from fresh and healthy root nodules exh

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Atse, Marie-Paule Aboueuh, Mako François De Paul N’gbesso, Allepo Innocent Abe, et al. "Diversity and Phylogeny of Symbiotic Bacteria Nodulating Common Bean (Phaseolus vulgaris L.) in Côte d’Ivoire." Microbiology Research Journal International 34, no. 7 (2024): 45–53. http://dx.doi.org/10.9734/mrji/2024/v34i71457.

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Phaseolus vulgaris L. (common bean) is an agriculturally important legume that benefits from a symbiosis with bacteria belonging to the genus Rhizobium. Growing interest in the use of rhizobia as biofertilizers has led to the identification of a large number of rhizobia strains and studies of their diversity. Although much research has been carried out on rhizobia, there is little data on the diversity of rhizobia associated with common bean in Côte d'Ivoire. This study assessed the species diversity of common bean nodulating bacteria in ivorian soils. This diversity was assessed based on 16S

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Fagorzi, Camilla, Alice Checcucci, George diCenzo, et al. "Harnessing Rhizobia to Improve Heavy-Metal Phytoremediation by Legumes." Genes 9, no. 11 (2018): 542. http://dx.doi.org/10.3390/genes9110542.

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Rhizobia are bacteria that can form symbiotic associations with plants of the Fabaceae family, during which they reduce atmospheric di-nitrogen to ammonia. The symbiosis between rhizobia and leguminous plants is a fundamental contributor to nitrogen cycling in natural and agricultural ecosystems. Rhizobial microsymbionts are a major reason why legumes can colonize marginal lands and nitrogen-deficient soils. Several leguminous species have been found in metal-contaminated areas, and they often harbor metal-tolerant rhizobia. In recent years, there have been numerous efforts and discoveries rel

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DIAS, SUELANE DE MELO, ALBERÍCIO PEREIRA DE ANDRADE, ADAILSON PEREIRA DE SOUZA, ANDRÉ LUIZ RODRIGUES MAGALHÃES, RISELANE DE LUCENA ALCÂNTARA BRUNO, and ROBERTA DE LIMA VALENÇA. "MORPHOPHYSIOLOGY OF RHIZOBIA ISOLATED FROM NATIVE FORAGE OF FABACEAE OF THE CAATINGA." Revista Caatinga 32, no. 4 (2019): 904–14. http://dx.doi.org/10.1590/1983-21252019v32n406rc.

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ABSTRACT The rhizobia found in Fabaceae plants of the Caatinga may have potential as fodder in the semiarid region, thus increasing the availability of feed for animal production in this region. This study aimed to characterize the morphophysiology of rhizobia strains of the forage species Mimosa tenuiflora (Jurema preta), Macroptilium atropurpureum (Siratro), and Desmanthus pernambucanus (Jureminha). The soil used as the substrate was collected at specific locations in the municipalities of Sertânia, Arcoverde, and São Bento do Una, state of Pernambuco. The characterization of rhizobial colon

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Khalid, Rabia, Xiao Xia Zhang, Rifat Hayat, and Mukhtar Ahmed. "Molecular Characteristics of Rhizobia Isolated from Arachis hypogaea Grown under Stress Environment." Sustainability 12, no. 15 (2020): 6259. http://dx.doi.org/10.3390/su12156259.

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The phenotypic and genotypic characterization of eight rhizobial isolates obtained from Arachis hypogaea nodules grown under stress environment was performed. Isolates were screened for their ability to tolerate different abiotic stresses (high temperature (60° C), salinity (1–5% (w/v) NaCl), and pH (1–12). The genomic analysis of 16S rRNA and housekeeping genes (atpD, recA, and glnII) demonstrated that native groundnut rhizobia from these stress soils are representatives of fast growers and phylogenetically related to Rhizobium sp. The phenotypic characterization (generation time, carbon sour

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Abe, Jonathan N. A., Ishwora Dhungana, and Nhu H. Nguyen. "Legume-nodulating rhizobia are widespread in soils and plants across the island of O‘ahu, Hawai‘i." PLOS ONE 18, no. 9 (2023): e0291250. http://dx.doi.org/10.1371/journal.pone.0291250.

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Legumes and their interaction with rhizobia represent one of the most well-characterized symbioses that are widespread across both natural and agricultural environments. However, larger distribution patterns and host associations on isolated Pacific islands with many native and introduced hosts have not been well-documented. Here, we used molecular and culturing techniques to characterize rhizobia from soils and 24 native and introduced legume species on the island of O’ahu, Hawai‘i. We chose two of these isolates to inoculate an endemic legume tree, Erythina sandwicensis to measure nodulation

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Lisboa, Bruno Britto, Thomas Müller Schmidt, Arthur Henrique Ely Thomé, et al. "Indigenous rhizobial strains SEMIA 4108 and SEMIA 4107 for common bean inoculation: A biotechnological tool for cleaner and more sustainable agriculture." Experimental Agriculture 57, no. 1 (2021): 57–67. http://dx.doi.org/10.1017/s0014479721000041.

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SummaryInoculation of symbiotic N2-fixing rhizobacteria (rhizobia) in legumes is an alternative to reduce synthetic N fertiliser input to crops. Even though common bean benefits from the biological N2 fixation carried out by native rhizobia isolates, the low efficiency of this process highlights the importance of screening new strains for plant inoculation. Two rhizobial strains (SEMIA 4108 and SEMIA 4107) previously showed great potential to improve the growth of common beans under greenhouse conditions. Thus, this study evaluated the growth and grain yield of common bean plants inoculated wi

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Rivera, F., J. Ivelic-Sáez, M. Gerding, et al. "Symbiotic Effectiveness of native Rhizobia Associated with non-native Vicia spp. and Lathyrus spp. From Magallanes." Agro Sur 52, no. 1 (2024): 15–23. https://doi.org/10.4206/agrosur.2024.v52n1-02.

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The species Vicia magellanica, V. nigricans and Lathyrus magellanicus are part of the natural pastures of the Magallanes region. These species belong to the Fabaceae family and should be able to establish symbiotic associations with soil bacteria and thus fix atmospheric Nitrogen. The objective of this research was to evaluate root nodules formation and to determine the specificity and symbiotic effectiveness of rhizobia isolated from Vicia sp y Lathyrus sp. under controlled conditions. Thirteen rhizobial isolates were obtained from nodules collected from these species at three sites in the Ma

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Tlusty, B., P. van Berkum, and P. H. Graham. "Characteristics of the rhizobia associated with Dalea spp. in the Ordway, Kellogg–Weaver Dunes, and Hayden prairies." Canadian Journal of Microbiology 51, no. 1 (2005): 15–23. http://dx.doi.org/10.1139/w04-107.

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Habitat fragmentation affects the biodiversity and function of aboveground organisms in natural ecosystems but has not been studied for effects on belowground species. In this paper, we consider the diversity of the rhizobia associated with the indigenous legume Dalea purpurea in 3 residual prairie areas in Minnesota and Iowa. Using Dalea purpurea as a trap host, 218 rhizobia were recovered from these soils then characterized using BOXA1R PCR. Three major and 13 minor groups were distinguished based on a similarity of greater than 75% in fingerprint patterns. Each major group consisted almost

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Geetha, S. J., and Sanket J. Joshi. "Engineering Rhizobial Bioinoculants: A Strategy to Improve Iron Nutrition." Scientific World Journal 2013 (2013): 1–15. http://dx.doi.org/10.1155/2013/315890.

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Under field conditions, inoculated rhizobial strains are at a survival disadvantage as compared to indigenous strains. In order to out-compete native rhizobia it is not only important to develop strong nodulation efficiency but also increase their competence in the soil and rhizosphere. Competitive survival of the inoculated strain may be improved by employing strain selection and by genetic engineering of superior nitrogen fixing strains. Iron sufficiency is an important factor determining the survival and nodulation by rhizobia in soil. Siderophores, a class of ferric specific ligands that a

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Jēkabsone, Astra, Una Andersone-Ozola, Andis Karlsons, Lāsma Neiceniece, Māris Romanovs, and Gederts Ievinsh. "Dependence on Nitrogen Availability and Rhizobial Symbiosis of Different Accessions of Trifolium fragiferum, a Crop Wild Relative Legume Species, as Related to Physiological Traits." Plants 11, no. 9 (2022): 1141. http://dx.doi.org/10.3390/plants11091141.

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Biological nitrogen fixation by legume-rhizobacterial symbiosis in temperate grasslands is an important source of soil nitrogen. The aim of the present study was to characterize the dependence of different accessions of T. fragiferum, a rare crop wild relative legume species, from their native rhizobia as well as additional nitrogen fertilization in controlled conditions. Asymbiotically cultivated, mineral-fertilized T. fragiferum plants gradually showed signs of nitrogen deficiency, appearing as a decrease in leaf chlorophyll concentration, leaf senescence, and a decrease in growth rate. The

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González, Tehuni Orlando, João Carlos Campanharo, and Eliana Gertrudes de Macedo Lemos. "Genetic characterization and nitrogen fixation capacity of Rhizobium strains on common bean." Pesquisa Agropecuária Brasileira 43, no. 9 (2008): 1177–84. http://dx.doi.org/10.1590/s0100-204x2008000900012.

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This study aimed to genetically characterize four new Rhizobium strains, and to evaluate their nodulation and fixation capacity compared to commercial strains and to native rhizobia population of a Brazilian Rhodic Hapludox. Two experiments were carried out in randomized blocks design, under greenhouse conditions, in 2007. In the first experiment, the nodulation and nitrogen fixation capacity of new strains were evaluated, in comparison to the commercial strains CIAT-899 and PRF-81 and to native soil population. It was carried out in plastic tubes filled with vermiculite. DNA extractions and P

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Wielbo, Jerzy, Monika Marek-Kozaczuk, Agnieszka Kubik-Komar, and Anna Skorupska. "Increased metabolic potential of Rhizobium spp. is associated with bacterial competitiveness." Canadian Journal of Microbiology 53, no. 8 (2007): 957–67. http://dx.doi.org/10.1139/w07-053.

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Of 105 rhizobial isolates obtained from nodules of commonly cultivated legumes, we selected 19 strains on the basis of a high rate of symbiotic plant growth promotion. Individual strains within the species Rhizobium leguminosarum bv. trifolii , R. leguminosarum bv. viciae , and Rhizobium etli displayed variation not only in plasmid sizes and numbers but also in the chromosomal 16S–23S internal transcribed spacer. The strains were tagged with gusA gene and their competitiveness was examined in relation to an indigenous population of rhizobia under greenhouse conditions. A group of 9 strains was

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Kucey, R. M. N., and M. F. Hynes. "Populations of Rhizobium leguminosarum biovars phaseoli and viceae in fields after bean or pea in rotation with nonlegumes." Canadian Journal of Microbiology 35, no. 6 (1989): 661–67. http://dx.doi.org/10.1139/m89-107.

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Populations of Rhizobium leguminosarum bv. phaesoli and bv. viceae in southern Alberta soils were measured over a period of 4 years using a most probable number method. Five fields cropped to bean (Phaseolus vulgaris L.), five fields cropped to pea (Pisum sativum L.), and two fields cropped to wheat were used as test sites. Legume crops had received appropriate legume inoculants. Fields were sampled in the fall of the crop year and in the spring of the following 3 years during which fields were cropped to nonlegumes or left fallow. Numbers of R. leguminosarum bv. phaseoli were 100 to 1000 time

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Taulé, Cecilia, María Zabaleta, Cintia Mareque, et al. "New Betaproteobacterial Rhizobium Strains Able To Efficiently Nodulate Parapiptadenia rigida (Benth.) Brenan." Applied and Environmental Microbiology 78, no. 6 (2012): 1692–700. http://dx.doi.org/10.1128/aem.06215-11.

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ABSTRACTAmong the leguminous trees native to Uruguay,Parapiptadenia rigida(Angico), a Mimosoideae legume, is one of the most promising species for agroforestry. Like many other legumes, it is able to establish symbiotic associations with rhizobia and belongs to the group known as nitrogen-fixing trees, which are major components of agroforestry systems. Information about rhizobial symbionts for this genus is scarce, and thus, the aim of this work was to identify and characterize rhizobia associated withP. rigida. A collection of Angico-nodulating isolates was obtained, and 47 isolates were sel

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Bhandari, Geetanjali, Kiran P. Raverkar, Gurvinder Singh, et al. "Quantification of Indigenous Rhizobial Populations Associated with Pea Nodulation in Kumaon Region of North-western Himalayas." Journal of Scientific Research and Reports 30, no. 12 (2024): 414–28. https://doi.org/10.9734/jsrr/2024/v30i122686.

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The purpose of this study was to explore the diversity of native rhizobial populations in pea-cultivating regions of the Kumaon area in the north-western Himalayas and their role in biological nitrogen fixation (BNF). The research employed completely randomized design (CRD), involving the collection of soil samples from 12 locations to analyze rhizobial populations, soil physicochemical properties, and their effects on pea nodulation and nitrogen accumulation. A positive correlation was observed between soil organic carbon (OC) levels and the most probable number (MPN) of rhizobia, with higher

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Sharma, M. P., K. Srivastava, and S. K. Sharma. "Biochemical characterization and metabolic diversity of soybean rhizobia isolated from Malwa region of Central India." Plant, Soil and Environment 56, No. 8 (2010): 375–83. http://dx.doi.org/10.17221/247/2009-pse.

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Soybean cultivation in many zones of India shows occurrence of native rhizobia besides other exotically adapted strains. In the current study, 22 rhizobial isolates (recovered from 12 different soybean growing sites) and 8 reference strains were selected for biochemical and metabolic characterization. Of 22 isolates, 18 were recovered as fast growing isolates while the rest were slow growing based on bromothymol blue (BTB) test. Unlike earlier belief that rhizobia have no ability to grow on glucose peptone agar medium, in this study, some isolates and some reference strains grew well on this m

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Keatinge, J. D. H., D. P. Beck, L. A. Materon, N. Yurtsever, K. Karuc, and S. Altuntas. "The Role of Rhizobial Biodiversity in Legume Crop Productivity in the West Asian Highlands. IV. Rhizobium ciceri." Experimental Agriculture 31, no. 4 (1995): 501–7. http://dx.doi.org/10.1017/s001447970002648x.

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SUMMARYThe native rhizobia capable of symbiosis with chickpea crops in the Turkish highlands were surveyed and estimates made of the numbers of bacteria and the nitrogen fixing efficiency of isolates of R. ciceri in symbiosis with an improved Turkish cultivar and a local landracc. Soils were collected from locations at elevations between 500 and 2200 m.Native rhizobia specific to the local landrace were more abundant than those specific to the improved cultivar but nitrogen fixation efficiencies of all isolates were consistently poor. Agronomic research priorities must include the identificati

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Ndhlovu, Khumbudzo, Francina Lebogang Bopape, Mamonokane Olga Diale, et al. "Characterization of Nodulation-Compatible Strains of Native Soil Rhizobia from the Rhizosphere of Soya Bean (Glycine max L.) Fields in South Africa." Nitrogen 5, no. 4 (2024): 1107–23. https://doi.org/10.3390/nitrogen5040071.

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Prolonged inoculation of soya bean (Glycine max L.) farms with exotic strains of Bradyrhizobium species starting in the 1960s resulted in the establishment of populations of Bradyrhizobium strains in the soils of several soya bean farms in South Africa. With the increasing number of new soya bean genotypes in the country, it is challenging to determine which genotypes are highly compatible with a given rhizobium strain. In this study, we investigated the symbiotic compatibility of native rhizobial isolates and the strains from the South African Rhizobium Culture Collection (SARCC) on ten selec

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Patreze, Camila M., and Lázara Cordeiro. "Nodulation, arbuscular mycorrhizal colonization and growth of some legumes native from Brazil." Acta Botanica Brasilica 19, no. 3 (2005): 527–37. http://dx.doi.org/10.1590/s0102-33062005000300014.

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The effects of rhizobial and mycorrhizal inoculation, nitrogen and phosphorus fertilization on nodulation, mycorrhizal colonization and initial growth were examined in Brazilian native plants, Enterolobium contortisiliquum (Vell. Conc.) Morong, Inga laurina (Sw.) Willd., Lonchocarpus muehlbergianus Hassl and Platypodium elegans Vogel. The experiment was carried out in a glasshouse using plastic bags filled with a mixture of sandy soil from riparian forest and vermiculite (2:1) amended with basal nutrients including NP, P and N and infected with rhizobia (r), mycorrhiza (m) or both (rm), amount

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García-Pérez, Luis Galdino, Clara Ivette Rincón-Molina, Esperanza Martínez-Romero, et al. "Genomic Insights and Plant Growth-Promoting Potential of Rhizobial Strains from Agave americana." Horticulturae 10, no. 12 (2024): 1370. https://doi.org/10.3390/horticulturae10121370.

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Symbiotic relationships between plants and bacteria play a pivotal role in both natural and agricultural ecosystems, particularly through endophytic colonization or rhizospheric interactions. This study evaluated the plant growth-promoting potential (PGP) of native rhizobial strains Rhizobium sp. ACO-34A and Mesorhizobium sp. 28A (now reclassified within the genus Kumtagia), isolated from Agave americana. Through phenotypic characterization, PGP evaluation, and comparative genomic analysis, both strains demonstrated the ability to thrive under diverse salinity levels and pH conditions, reflect

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Mártir, M. C., B. Tlusty, P. van Berkum, and P. H. Graham. "The genetic diversity of rhizobia associated withDalea purpureaVent. in fragmented grasslands of west-central Minnesota." Canadian Journal of Microbiology 53, no. 3 (2007): 351–63. http://dx.doi.org/10.1139/w06-137.

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The increase in human population and the spread of agriculture over the past 150 years have transformed the landscape in west-central Minnesota into a mosaic of agricultural fields and urban land, leaving only remnants of the once dominant prairie ecosystem. Limited natural habitat in this fragmented landscape threatens the diversity and abundance of native legumes and could impact the size and function of associated belowground microbial populations. In this study, BOXA1R PCR and 16S rRNA gene sequence analyses were used to assess the genetic diversity of rhizobia associated with Dalea purpur

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Ouma, Ernest Wandera, Anne Mercy Asango, John Maingi, and Ezekiel Mugendi Njeru. "Elucidating the Potential of Native Rhizobial Isolates to Improve Biological Nitrogen Fixation and Growth of Common Bean and Soybean in Smallholder Farming Systems of Kenya." International Journal of Agronomy 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/4569241.

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Identification of effective indigenous rhizobia isolates would lead to development of efficient and affordable rhizobia inoculants. These can promote nitrogen fixation in smallholder farming systems of Kenya. To realize this purpose, two experiments were conducted under greenhouse conditions using two common bean cultivars; Mwezi moja (bush type) and Mwitemania (climbing type) along with soybean cultivar SB 8. In the first experiment, the common bean cultivars were treated with rhizobia inoculants including a consortium of native isolates, commercial isolate (CIAT 899), a mixture of native iso

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Mulama, Samuel, Rose Onamu, Fredrick Odongo, and John Muoma. "Abundance and Symbiotic Rhizobia Colonizing Soybean (Glycine max) in Soils of Kakamega County, Western Kenya." International Journal of Agronomy 2021 (August 11, 2021): 1–7. http://dx.doi.org/10.1155/2021/6627541.

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Identification of effective indigenous rhizobia strain nodulating soybean (Glycine max) was conducted in Kakamega County, Western Kenya. This study was carried out to establish the abundance and symbiotic efficiency of native rhizobia strains in soil samples collected from 12 sites in four agroecological zones within the region. The MPN enumeration technique was used to estimate the indigenous rhizobia numbers and showed that 54% of the sampled sites had high abundance. Rhizobia number in the soil collected from the six regions varied from 2.5 × 102 to 3.12 × 103 cells·g− soil. Thirty isolates

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Church, Bridget M., Brad Geary, Joel Griffitts, et al. "Development of a Rhizobium Seed Coating to Establish Lupine Species on Degraded Rangelands." Plants 13, no. 15 (2024): 2101. http://dx.doi.org/10.3390/plants13152101.

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Restoring native plant species on degraded landscapes is challenging. Symbiotic partners in the plant rhizosphere can aid in nutrient acquisition, pathogen protection, stress tolerance, and many other processes. However, these microbes are often absent in altered landscapes and need to be re-integrated to improve restoration efforts. We evaluated, within a laboratory setting, the ability of commercial and indigenous rhizobia strains to form nodules on lupine species used for rangeland seedings in the Great Basin region of the Western United States and ascertained if these strains could be appl

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Morel Revetria, María A., Andrés Berais-Rubio, Matías Giménez, Juan Sanjuán, Santiago Signorelli, and Jorge Monza. "Competitiveness and Phylogenetic Relationship of Rhizobial Strains with Different Symbiotic Efficiency in Trifolium repens: Conversion of Parasitic into Non-Parasitic Rhizobia by Natural Symbiotic Gene Transfer." Biology 12, no. 2 (2023): 243. http://dx.doi.org/10.3390/biology12020243.

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In Uruguayan soils, populations of native and naturalized rhizobia nodulate white clover. These populations include efficient rhizobia but also parasitic strains, which compete for nodule occupancy and hinder optimal nitrogen fixation by the grassland. Nodulation competitiveness assays using gusA-tagged strains proved a high nodule occupancy by the inoculant strain U204, but this was lower than the strains with intermediate efficiencies, U268 and U1116. Clover biomass production only decreased when the parasitic strain UP3 was in a 99:1 ratio with U204, but not when UP3 was at equal or lower n

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Elshafie, A. E., R. Victor, and N. Al-Mugbali. "Nodulation of Medicago Sativa L. by Different Rhizobium Strains in the Sultanate of Oman." Sultan Qaboos University Journal for Science [SQUJS] 2 (December 1, 1997): 1. http://dx.doi.org/10.24200/squjs.vol2iss0pp1-4.

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Three native Rhizobium strains were isolated from Musandam. Buraimi and the Agricultural Experiment Station at Sultan Qaboos University in the Sultanate of Oman. An internationally known Rhizobium strain (TAI. 1373} was obtained from the Nitrogen Fixation for Tropical Agriculture I.egume Collection at the University of Hawaii. U.S.A-. for comparison. The different abilities of the strains to nodulate Medicago sativa I. were investigated. Different plant parameters namely, the fresh and dry weights of the shoot (g/plant ). the number of nodules per plant and the nitrogenase activity (u mole C2H

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Gurusamy, C., A. K. Bal, and D. B. McKenzie. "Nodulation of beach pea (Lathyrus maritimus [L.] Bigel.) induced by different strains of rhizobia." Canadian Journal of Plant Science 79, no. 2 (1999): 239–42. http://dx.doi.org/10.4141/p98-039.

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In an attempt to screen the most effective rhizobial strain for the potential cold-climate legume crop beach pea (Lathyrus maritimus L.), rhizobia from eight different species of Lathyrus were tested along with the native strain on a 9-wk-long pot culture. The native strain, ACCCRC, isolated from beach pea proved to be the most effective. The tropical legume grass pea (L. sativus L.) tested with the above strains failed to nodulate with ACCCRC, USDA 2422 and USDA 2446. Oleosome content of nodules assessed from histological sections reveals higher numbers in beach pea than in grass pea. Key wor

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Ben-Laouane, Raja, Mohamed Ait-El-Mokhtar, Mohamed Anli, et al. "Microbial Biotechnologies for Salt Tolerance in Alfalfa: Agro-Nutritional Comparison Between Local and Imported Varieties." Nitrogen 6, no. 2 (2025): 27. https://doi.org/10.3390/nitrogen6020027.

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Increasing soil salinity is threatening agricultural productivity which implies the development of new sustainable strategies to deal with this challenge. The main objective here is to assess the potential for improving the tolerance of alfalfa to salinity by combining inoculations with rhizobia and AMF. However, the distinguishing feature of this study is the comparison of two alfalfa varieties’ microbial response to salinity. The greenhouse trial was conducted on an Australian variety Siriver and an indigenous Demnate population, which were inoculated with Rhizoglomus irregulare and/or nativ

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Warrington, Staci, Allan G. Ellis, Jan-Hendrik Keet, and Johannes J. Le Roux. "How does familiarity in rhizobial interactions impact the performance of invasive and native legumes?" NeoBiota 72 (March 28, 2022): 129–56. http://dx.doi.org/10.3897/neobiota.72.79620.

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Mutualisms can be disrupted when non-native plants are introduced into novel environments, potentially impacting their establishment success. Introduced species can reassemble mutualisms by forming novel associations with resident biota or by maintaining familiar associations when they are co-introduced with their mutualists. Invasive Australian Acacia species in South Africa have formed nitrogen-fixing rhizobium mutualisms using both pathways. Here we examined the contributions of novel vs familiar rhizobial associations to the performance of Acacia saligna across different soils within South

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Warrington, Staci, Allan G. Ellis, Jan-Hendrik Keet, and Roux Johannes J. Le. "How does familiarity in rhizobial interactions impact the performance of invasive and native legumes?" NeoBiota 72 (March 28, 2022): 129–56. https://doi.org/10.3897/neobiota.72.79620.

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Mutualisms can be disrupted when non-native plants are introduced into novel environments, potentially impacting their establishment success. Introduced species can reassemble mutualisms by forming novel associations with resident biota or by maintaining familiar associations when they are co-introduced with their mutualists. Invasive Australian Acacia species in South Africa have formed nitrogen-fixing rhizobium mutualisms using both pathways. Here we examined the contributions of novel vs familiar rhizobial associations to the performance of Acacia saligna across different soils within South

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Lafay, Bénédicte, and Jeremy J. Burdon. "Molecular Diversity of Rhizobia Occurring on Native Shrubby Legumes in Southeastern Australia." Applied and Environmental Microbiology 64, no. 10 (1998): 3989–97. http://dx.doi.org/10.1128/aem.64.10.3989-3997.1998.

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ABSTRACT The structure of rhizobial communities nodulating native shrubby legumes in open eucalypt forest of southeastern Australia was investigated by a molecular approach. Twenty-one genomic species were characterized by small-subunit ribosomal DNA PCR-restriction fragment length polymorphism and phylogenetic analyses, among 745 rhizobial strains isolated from nodules sampled on 32 different legume host species at 12 sites. Among these rhizobial genomic species, 16 belonged to the Bradyrhizobium subgroup, 2 to theRhizobium leguminosarum subgroup, and 3 to the Mesorhizobium subgroup. Only one

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Wekesa, Clabe, Kelvin Kiprotich, Patrick Okoth, et al. "Molecular Characterization of Indigenous Rhizobia from Kenyan Soils Nodulating with Common Beans." International Journal of Molecular Sciences 24, no. 11 (2023): 9509. http://dx.doi.org/10.3390/ijms24119509.

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Kenya is the seventh most prominent producer of common beans globally and the second leading producer in East Africa. However, the annual national productivity is low due to insufficient quantities of vital nutrients and nitrogen in the soils. Rhizobia are symbiotic bacteria that fix nitrogen through their interaction with leguminous plants. Nevertheless, inoculating beans with commercial rhizobia inoculants results in sparse nodulation and low nitrogen supply to the host plants because these strains are poorly adapted to the local soils. Several studies describe native rhizobia with much bett

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Šimon, T., and J. Salava. "New Rhizobium leguminosarum bv. trifolii isolates: Evaluation of competitiveness for clover nodule occupancy." Plant, Soil and Environment 52, No. 10 (2011): 441–48. http://dx.doi.org/10.17221/3464-pse.

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An interrelationship between introduced and indigenous rhizobia focused on their competitiveness in nodulation was evaluated in a soil pot experiment. Clover seeds were inoculated by six different gradual concentrations of inoculum of two effective Rhizobium leguminosarum bv. trifolii isolates (inoculation strains 1/2 and 14/2). At the beginning of flowering, clover plants were removed from the pots, and nodules from each pot representing different degrees of inoculum level were taken for reisolate cultivation. The PCR technique was used for the identification of rhizobial reisolates, random a

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Gómez-Acata, Selene, Enriqueta Amora-Lazcano, En Tao Wang, et al. "Nodule-forming Sinorhizobium and arbuscular mycorrhizal fungi (AMF) improve the growth of Acacia farnesiana (Fabaceae): an alternative for the reforestation of the Cerro de la Estrella, Mexico." Botanical Sciences 97, no. 4 (2019): 609–22. http://dx.doi.org/10.17129/botsci.2200.

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Background: Cerro de la Estrella (CE) is a natural reserve in Mexico City that suffers from afforestation, and its restoration with Acacia farnesiana is being considered.Question: Will the nodule-forming rhizobia and arbuscular mycorrhizal fungi (AMF) associated with the CE soil support A. farnesiana growth?Study species: Acacia farnesiana (L.) Willd. (Fabaceae).Methods: Mycorrhizal fungi, nodule-forming rhizobia and physicochemical characteristics of the CE soil were studied to determine if they are suitable for improving the growth of Acacia farnesiana.Results: Four different families of AMF

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Keatinge, J. D. H., L. A. Materon, D. P. Beck, N. Yurtsever, K. Karuc, and S. Altuntas. "The Role of Rhizobial Biodiversity in Legume Crop Productivity in the West Asian Highlands." Experimental Agriculture 31, no. 4 (1995): 473–83. http://dx.doi.org/10.1017/s0014479700026454.

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SUMMARYThe numbers of bacteria and the nitrogen fixing efficiency of isolates ofRhizobium leguminosarum, R. ciceriandR. melilotiwith appropriate legume crop species were determined from soils collected from a wide range of locations in Turkey with elevations between 500 and 2200 m. For vetch and lentil nodulated byR. leguminosarum, many native rhizobia are present in most locations but they often have limited nitrogen fixation capacity. However, for chickpea nodulated byR. ciceri, relatively small numbers of bacteria and the almost universal ineffectiveness of fixation capacity point to a need

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Paço, Ana, José Rodrigo da-Silva, Denise Pereira Torres, Bernard R. Glick, and Clarisse Brígido. "Exogenous ACC Deaminase Is Key to Improving the Performance of Pasture Legume-Rhizobial Symbioses in the Presence of a High Manganese Concentration." Plants 9, no. 12 (2020): 1630. http://dx.doi.org/10.3390/plants9121630.

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Manganese (Mn) toxicity is a very common soil stress around the world, which is responsible for low soil fertility. This manuscript evaluates the effect of the endophytic bacterium Pseudomonas sp. Q1 on different rhizobial-legume symbioses in the absence and presence of Mn toxicity. Three legume species, Cicer arietinum (chickpea), Trifolium subterraneum (subterranean clover), and Medicago polymorpha (burr medic) were used. To evaluate the role of 1-aminocyclopropane-1-carboxylate (ACC) deaminase produced by strain Q1 in these interactions, an ACC deaminase knockout mutant of this strain was c

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Beyhaut, Elena, Lee R. DeHaan, Jaehyun L. Byun, Craig C. Sheaffer, and Peter H. Graham. "Response to inoculation in Illinois bundleflower." Canadian Journal of Plant Science 86, no. 4 (2006): 919–26. http://dx.doi.org/10.4141/p05-097.

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llinois bundleflower [Desmanthus illinoensis (Michx.) MacMillan] has potential as a pasture and grain legume in the Midwestern USA, but has proven to be somewhat problematic in inoculation response. We identified inoculant-quality Rhizobium strains from among 120 isolates trapped from 12 sites within the native range of Illinois bundleflower, then determined the effect of inoculation with four selected strains on plant dry matter and plant total N in growth chamber, greenhouse, and field experiments. We also studied nodule occupancy in the field. In field experiments at Salina (Kansas) and Bec

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Amani, Kouadio, Guy Fernand Yao, Lassina Fondio, et al. "Effects of Native Rhizobia on Soybean [Glycine max (L.) Merrill] Production and Soil Properties in Daloa, Center-West of Côte d’Ivoire." International Journal of Plant & Soil Science 36, no. 9 (2024): 239–47. http://dx.doi.org/10.9734/ijpss/2024/v36i94972.

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The field experiment study was conducted at the experimental station of Jean Lorougnon Guede University in Daloa to evaluate the potential effects of native rhizobia strains on soybean production and soils properties. The experiment was layout in a randomized complete block design with three replications. The treatments include seven native strains, one exotic strain (Bradyrhizobium japonicum IRAT FA3), one synthetic fertilizer NPK 12-22-22 formulation and one negative control (no fertilizer, no inoculation). Agronomic parameters (plant height, plant dry biomass, nodule number plant-1, pod num

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AMANI, Kouadio, Raïssa Nassé Kaéda GUEI, Adama OUATTARA, et al. "Response of Soybean [Glycine max (L.) Merrill] to Local Nitrogen Fixing Bacteria Inoculation in Divo Area, Center-south of Côte d’Ivoire." Microbiology Research Journal International 34, no. 12 (2024): 122–31. https://doi.org/10.9734/mrji/2024/v34i121515.

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Experiment was conducted on farm in Divo to evaluate the elite native rhizobia strains on soybean nodulation, growth and yield. The experiment was layout in a randomized complete block design with three replications. The treatments include seven native strains, one exotic strain (Bradyrhizobium japonicum IRAT FA3), one synthetic fertilizer NPK 12-22-22 formulation and one negative control. Agronomic parameters (plant height, plant dry biomass, nodules number plant-1, pods number plant-1, pods weight plant-1, 100-seeds weight and seeds yield ha-1) were measured. Results showed that all tested l

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Mazur, Oleksandr, Olena Mazur, Tetiana Tymoshchuk, Ihor Didur, and Viacheslav Tsyhanskyi. "Study of legume-rhizobia symbiosis in soybean for agroecosystem resilience." Scientific Horizons 27, no. 11 (2024): 68–89. https://doi.org/10.48077/scihor11.2024.68.

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Research into innovative methods of regulating legume-rhizobia symbiosis is crucial for enhancing nitrogen fixation, thereby promoting soil health and increasing crop yields. This contributes to sustainable agriculture by reducing the need for chemical fertilisers and enhancing the resilience of agroecosystems. The study aimed to determine the impact of seed inoculation, environmental conditions, and varietal characteristics of soybean varieties on biological nitrogen accumulation. The research was conducted under the environmental conditions of Kyiv, Poltava, and Vinnytsia regions from 2010 t

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Woomer, Paul, Paul W. Singleton, and B. Ben Bohlool. "Ecological Indicators of Native Rhizobia in Tropical Soils †." Applied and Environmental Microbiology 54, no. 5 (1988): 1112–16. http://dx.doi.org/10.1128/aem.54.5.1112-1116.1988.

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