Symbiotic variability in Vicia faba. 1. Genetic variation in the Rhizobium leguminosarum population

El-Sherbeeny, M.; Mytton, L. R.; Lawes, D. A.

doi:10.1007/bf00032080

Cited by 29 publications

(12 citation statements)

References 7 publications

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“…El-Sherbeeny et al (10) found differences in morphology, dry matter yield, efficiency of N utilization, and time of flowering in V. faba plants inoculated with various strains of R. leguminosarum. The authors suggested that the rhizobial influence on the efficiency of N utilization and time flowering could be explained by rhizobial contribution of substances other than N. The differences in the height of V. faba plants were not attributed to these substances but were simply correlated with over-all dry matter production (10).…”

Section: Discussionmentioning

confidence: 99%

“…In 1925, Stevens (17) and Wright (25) reported that inoculation of different strains of Rhizobium meliloti and Rhizobium japonicum on alfalfa and soybeans, respectively, caused dramatic differences in the dry weight and total N of the host plant. More recent work of ElSherbeeny et al (10) showed that alterations in dry weight, total N, and height of Vicia faba plants caused by inoculation with different Rhizobium leguminosarum strains could be explained by 'This research was supported by the Missouri Agricultural Experiment Station, Journal Series No. 8458. differences in the efficiency of N fixation among the strains.…”

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confidence: 91%

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Increase in Internode Length of Phaseolus lunatus L. Caused by Inoculation with a Nitrate Reductase-deficient Strain of Rhizobium sp.

Triplett

Heitholt²,

Evensen³

et al. 1981

Plant Physiol.

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(1) demonstrated that inoculation with H2-uptakepositive strains of R. japonicum " lId increase the dry weight and total N of soybeans compared to those inoculated with H2-uptakenegative strains. All of these workers have shown that the dry weight and total N of leguminous plants can be affected by the Rhizobium strain selected for inoculation.In experiments designed to study constitutive NRA2 in nodule bacteroids by use of Rhizobium strains with or without NRA, striking differences in the growth habit of lima beans (Phaseolus lunatus L) were observed (22). Subsequent experiments were designed to study the influence of Rhizobium strain on the growth and development of the host plant. MATERIALS AND METHODSPLANT CULTURE Growth Chamber. Lima beans (Phaseolus lunatus L. cv. Henderson) were germinated and grown in moist paper towels for 5 days. Seedlings then were suspended over darkened quart

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 91%

Increase in Internode Length of Phaseolus lunatus L. Caused by Inoculation with a Nitrate Reductase-deficient Strain of Rhizobium sp.

Triplett

Heitholt²,

Evensen³

et al. 1981

Plant Physiol.

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“…Five of the Rhizobium leguminosarium strains used, 12d, 15a, 19d, 29c and 29d, were selected to cover a range of effectiveness representative of the local field population, as isolated from, and assessed by, a previous test on the variety Minor (EL-SHERBEENY et al ., 1977a) ; the sixth strain was 1003 from the Rothamsted collection . Two control treatments were also included ; (a) uninoculated, and (b) uninoculated, but supplied with mineral nitrogen .…”

Section: Methodsmentioning

confidence: 99%

“…The present series of investigations into symbiotic variability in Vicia faba has already shown that there is a large amount of genetic variability amongst strains of Rhizobium leguminosarum in their ability to fix nitrogen with a single bean variety (EL-SHERBEENY et al ., 1977a), and between varieties of Vicia faba in their ability to fix nitrogen with a single strain of rhizobium (EL-SHERBEENY et al ., 1977b). It has also been shown that varieties can respond to mineral and rhizobium nitrogen differentially, resulting in large variety x nitrogen source interactions .…”

Section: Introductionmentioning

confidence: 99%

Symbiotic variability in Vicia faba. 3. Genetic effects of host plant, rhizobium strain and of host × strain interaction

1977

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Vicia faba, field bean . Rhizobium leguminosarum . symbiotic variation . SUMMARY Six Vicia faba populations were grown in all possible combinations with six Rhizobium leguminosarum strains in order to estimate the relative importance of the three genetic components of symbiotic variability . Additive genetic effects of host genotype and rhizobium genotype accounted for only 8 .9°< and 11 .8% of the total phenotypic variation . Non-additive variation attributable to specific host genotype x rhizobium genotype interactions was by far the largest component of variation and accounted for 73 .8% of phenotypic differences . Therefore the greatest improvement in symbiotic nitrogen fixation is likely to arise from simultaneous selection of both symbionts .

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“…Each of the five classes of phytohormones has previously been implicated to function as a mediator in the process of nodule initiation (14,(20)(21)(22)25). However, the possibility that these phytohormones are utilized by both partners to control and maintain the symbiotic association has not been widely recognized (4,9,12) or substantiated.…”

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Gibberellins and the Legume-Rhizobium Symbiosis

Dobert¹,

Rood²,

Blevins³

1992

Plant Physiol.

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The content of gibberellin-like substances in nodules formed by Bradyrhizobium species strain 127E14 on roots of lima bean (Phaseolus lunatus L.) has been previously found to be relatively high. The objectives of the present study were to purify and identify the endogenous gibberellins from the stems and nodules of lima bean. By sequential silica gel partition column chromatography, C1, reverse-phase high performance liquid chromatography, and combined gas chromatography-mass spectrometry, the gibberellins A1, A3, A19, A20, A2,, and A44 were identified from root nodules. Gibberellins A1, A3, A19, A20, and AZ were also identified from lima bean stem tissue. These data provide the first mass spectral-based evidence that gibberellins are present in leguminous root nodules. The presence of the gibberellins identified indicates that the early 13-hydroxylation gibberellin biosynthetic pathway predominates in stem and nodule tissue. However, it is not known if the gibberellins within the nodules are produced in situ, or if they are imported from some remote host plant tissue.

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Symbiotic variability in Vicia faba. 1. Genetic variation in the Rhizobium leguminosarum population

Cited by 29 publications

References 7 publications

Increase in Internode Length of Phaseolus lunatus L. Caused by Inoculation with a Nitrate Reductase-deficient Strain of Rhizobium sp.

Increase in Internode Length of Phaseolus lunatus L. Caused by Inoculation with a Nitrate Reductase-deficient Strain of Rhizobium sp.

Symbiotic variability in Vicia faba. 3. Genetic effects of host plant, rhizobium strain and of host × strain interaction

Gibberellins and the Legume-Rhizobium Symbiosis

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