Incompatibility may not be the rule in the Sinorhizobium fredii –soybean interaction

Videira, L. B.; Pastorino, Graciela N.; Balatti, Pedro Alberto

doi:10.1016/s0038-0717(00)00212-1

Cited by 12 publications

(12 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The selected rhizobial strain S. fredii SHM12, which was the most PEG‐ and salt‐tolerant strain, was also in our study more effective in nodulating soybean under soil water deficit conditions. Formation of more nodules, due to inoculation of soybean with a rhizobial S. fredii strain (HH103) similar to our result with strain SMH12, has also been reported by Videira, Pastorino, and Balatti (). Hyper‐nodulation does not always translate into higher grain yield and some hyper‐nodulating soybean genotypes showed high nitrogen‐fixing ability only in the early growth stages (Herridge & Rose, ; Song, Carroll, Gresshoff, & Herridge, ; Wu & Harper, ).…”

Section: Discussionsupporting

confidence: 92%

“…Hyper-nodulation does not always translate into higher grain yield and some hyper-nodulating soybean genotypes showed high nitrogen-fixing ability only in the early growth stages (Herridge & Rose, 2000;Song, Carroll, Gresshoff, & Herridge, 1995;Wu & Harper, 1991). Hypernodulation incites a re-routing of carbohydrates to maintain the metabolic activities of a larger nodule biomass resulting in reduced shoot biomass production (Videira et al, 2001). However, improved vegetative growth in shoots and roots, due to enhanced nitrogen-fixing ability per plant, was found in the hyper-nodulating soybean cultivar Sakukei 4, especially after flowering when compared to conventional hypernodulating cultivars (Takahashi, Shimada, Nakayama, & Arihara, 2005).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Improvement of rhizobium‐soybean symbiosis and nitrogen fixation under drought

Kibido

Kunert

Makgopa

et al. 2019

Food and Energy Security

View full text Add to dashboard Cite

The symbiotic interaction between soybean plants and rhizobacteria can be severely affected by drought, which results in a reduction in symbiotic nitrogen fixation and ultimately decreased yields. The aim of our research was to determine whether symbiotically efficient rhizobia that can better tolerate soil water deficits can improve nodule performance in plants subjected to drought. Firstly, rhizobial strains were selected that exhibited differences in tolerance to salt (NaCl) or water deficit (PEG 6000). Sinorhizobium fredii strain SMH12 showed the highest tolerance to these treatments while Bradyrhizobium diazoefficiens strain WB74‐1 showed the lowest tolerance. Greenhouse‐grown Prima 2000 soybean plants were then inoculated with either SMH12 or WB74‐1 and subjected to two water deficit regimes. Different nodule and plant growth traits were determined, including nodule number, dry weight, water potential, and the accumulation of malondialdehyde and ureide. Plants inoculated with SMH12 had significantly more nodules under water deficit conditions than those inoculated WB74‐1, despite having lower root and shoot biomass. SMH12‐inoculated plants had higher nodule water potentials and lower malondialdehyde contents than the WB74‐1‐inoculated plants. These results demonstrate that inoculation of soybean plants with the more water deficit‐tolerant S. fredii strain improved nodule characteristics when plants were grown under water deficit conditions. However, these improved nodule characteristics do not always directly translate into better plant growth.

show abstract

Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Improvement of rhizobium‐soybean symbiosis and nitrogen fixation under drought

Kibido

Kunert

Makgopa

et al. 2019

Food and Energy Security

View full text Add to dashboard Cite

show abstract

“…Soybean nodulates and fixes nitrogen in association with different rhizobial species [3,4,6–12] and so evaluation of the efficiency of field inoculations and the survival and competitive ability of rhizobia introduced by means of inoculants is quite dependent upon the availability of reliable techniques of identification.…”

Section: Resultsmentioning

confidence: 99%

“…More recently, Keyser et al [6] and Chen et al [7,8] described the isolation of the fast growing rhizobia Sinorhizobium fredii [7,9], Sinorhizobium xinjiangensis [7,8] and Mesorhizobium thianshanense [8], from the soils of China. These bacteria nodulate and fix nitrogen in association with soybean as efficiently as B. japonicum does [10,11].…”

Section: Introductionmentioning

confidence: 99%

Identification of fast and slow growing rhizobia nodulating soybean (Glycine max[L.] Merr) by a multiplex PCR reaction

Pastorino

Alcántara

Balatti

2003

FEMS Microbiology Letters

View full text Add to dashboard Cite

Two DNA fragments, a 730-bp and a 900-bp fragment, one homologous to host cultivar specificity genes nolBT of Sinorhizobium fredii and the other one homologous to RSalpha, an insertion-like sequence present in Bradyrhizobium japonicum, were generated by polymerase chain reaction (PCR) with two pairs of primers. The amount of each fragment generated by the multiplex PCR was proportional to the amount of template DNA present. The amplification of the 900-bp RSalpha fragment was more sensitive, since it was amplified from a smaller amount of template DNA than the 730-bp nolBT fragment. By running the multiplex reaction in the presence of template DNA isolated from different sources, we confirmed that the reaction can discriminate between S. fredii, Bradyrhizobium japonicum and Sinorhizobium xinjiangensis.

show abstract

“…Symbiotic nitrogen fixation ability has been known to be influenced by three important factors i.e., host genotypes, bacterial strains and environmental conditions. Genotypic variation for nodule formation ability (nodule number and nodule dry weight) and N2 fixation ability was found in clover (Nutman, 1967), common bean (Phaseolus vulgaris L.) (Chavera and Graham, 1992;Montealegre et al, 1994), soybean (Videira et al, 2001) chickpea (Romdhane et al, 2007). Using diallel cross populations, it also has been shown that nodule formation ability is under polygenic control, in which non-additive gene action as well as substantial additive effect was presented (Bhapkar and Deshmukh, 1982).…”

Section: Introductionmentioning

confidence: 99%

Characterization for Nodulation and Detection of Duplicate Gene Action of Dominant Epistasis Controlling Root Nodulation in Chickpea (Cicer arietinum)

Gul¹

2018

IJAB

View full text Add to dashboard Cite

Diverse germplasm of chickpea (Cicer arietinum L.), procured from national and international organizations was categorized for nodulation as well as assessed for nodules per plant and yield per plant in The University of Agriculture, Peshawar. Forty three genotypes exhibited nodulation (Nod+) whereas four genotypes failed to produce any nodule (Nod-). ANOVA showed highly significant variances for both the studied characters between genotypes, in addition these traits showed high heritability estimate. Out of four non-nodulated genotypes, one new mutant strain was used to understand the mode of inheritance of nonnodulation. A spontaneous non-nodulating mutant ICC19181 was crossed with two different highly nodulated strains i.e., NDC 5-S-10 and NDC 4-20-4 and differential results were obtained in the F2 generation and backcross progenies. The former (ICC19181 X NDC 5-S-10) showed 3:1 and the latter (ICC19181 X NDC 4-20-4) showed 15 : 1 segregation for Nod+ : Nod-. The distribution of nodulated and non-nodulated progenies i.e., 1 Nod+: 1 Nod-and 3 Nod+: 1 Nod-in the backcross progenies of hybrid A and hybrid B, with ICC19181, respectively authenticate the results of segregating populations. The latter suggests that two independent loci were involved in forming non-nodulation phenotype. These are in complete dominance but the effect is epistatic to the others. NDC 5-S-10 is expected to be homozygous dominant in one gene but homozygous recessive in the other gene.

show abstract

Incompatibility may not be the rule in the Sinorhizobium fredii –soybean interaction

Cited by 12 publications

References 14 publications

Improvement of rhizobium‐soybean symbiosis and nitrogen fixation under drought

Improvement of rhizobium‐soybean symbiosis and nitrogen fixation under drought

Identification of fast and slow growing rhizobia nodulating soybean (Glycine max[L.] Merr) by a multiplex PCR reaction

Characterization for Nodulation and Detection of Duplicate Gene Action of Dominant Epistasis Controlling Root Nodulation in Chickpea (Cicer arietinum)

Contact Info

Product

Resources

About