EurekaMag.com logo
+ Site Statistics
References:
52,725,316
Abstracts:
28,411,598
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Symbiotic relationship between Bradyrhizobium strains and peanut


Crop science 29(1): 50-54
Symbiotic relationship between Bradyrhizobium strains and peanut
Significant host X strain interactions for the amount of N fixed were found in previous factorial experiments of peanut (Arachis hypogaea L.) and Bradyrhizobium strains. The results suggested that specific host-strain combinations should be identified to maximize N fixation. The objectives of this study were to determine if methodology could be developed to reduce the testing required to identify specific host-strain combinations that maximize N fixation. Sixteen peanut cultivars representing four morphological groups inoculated with 29 Bradyrhizobium strains known to be effective on peanut were used to determine if grouping of host genotypes or strain genotypes could be used to limit testing to groups of genotypes instead of individual genotypes. The peanut cultivars grouped using numerical taxonomy of morphological characters reflected the differences in response to rhizobial strains; however, cultivars were not homogeneous within groups for symbiotic traits. Strain variability was the largest component of the phenotypic variability for all traits, and the host plant had larger variability than the cultivar X strain interaction for nodule number, nodule weight, and nodule size. The biplot of shoot weight ratio classified the strains and peanut cultivars into five and four groups, respectively. All cultivars received enough N to appear normal when they were inoculated with effective strains but were quite different in response to symbiotic N. These results suggest that the amount of plant testing required to identify specific strains for a host genotype can be reduced considerably by first classifying the symbionts into groups and eliminating some groups from further testing.


Accession: 001962133



Related references

The accumulation of lectin in peanut nodules in relation to the symbiotic effectiveness of bradyrhizobium sp strains. Gresshoff, P M , Et Al (Ed ) Nitrogen Fixation: Achievements And Objectives; 8th International Congress on Nitrogen Fixation, Knoxville, Tennessee, Usa, May 20-26, Xix+869p Routledge, Chapman And Hall: New York, New York, Usa; London, England, Uk Illus 747, 1990

Effects of Fe fertilization and inoculation of Bradyrhizobium in calcareous purple soil on symbiotic nitrogen-fixation of Bradyrhizobium-peanut. Acta Pedologica Sinica 42(2): 295-300, 2005

Symbiotic efficiency of Hup+, Huphr and Hup- strains of Bradyrhizobium japonicum and Bradyrhizobium elkanii in cowpea cultivars. Pesquisa Agropecuaria Brasileira 34(10): 1925-1931, 1999

Peanut groups and their symbiotic relationship with Rhizobium strains. Dissertation Abstracts International, B Sciences and Engineering 46(2): 353B, 1985

Lack of relationship between summer soil temperature at the source of isolation and symbiotic performance of Bradyrhizobium strains at elevated temperature. Indian Journal of Dryland Agricultural Research and Development 16(2): 131-144, 2001

Comparative genomics of Bradyrhizobium japonicum CPAC 15 and Bradyrhizobium diazoefficiens CPAC 7: elite model strains for understanding symbiotic performance with soybean. Bmc Genomics 15(): 420-420, 2015

Dual inoculation of peanut with Glomus sp. and Bradyrhizobium sp. enhanced the symbiotic nitrogen fixation as assessed by 15N-technique. Soil Science and Plant Nutrition 41(4): 769-779, 1995

Effect of low pH on the enzyme activities of the ammonium assimilation pathways in the symbiotic association Bradyrhizobium sp. peanut (Arachis hypogaea L.). Symbiosis Rehovot 40(1): 1-6, 2005

Variation in the symbiotic effectiveness of Bradyrhizobium strains of soybean. Bangladesh Journal of Microbiology 15(1): 25-30, June, 1998

Symbiotic functions in bradyrhizobium japonicum inoculant strains. Valentine, F A (Ed ) Forest And Crop Biotechnology: Progress And Prospects; Colloquium, Syracuse, New York, Usa, April 18-20, 1985 Xix+466p Springer-Verlag New York, Inc : New York, New York, Usa; Berlin, West Germany Illus 283-297, 1988