Symbiotic nitrogen fixation in nodules from ten common bean cultivars as a reliable estimator of yield during the early stages

2012 ◽  
Vol 7 (9) ◽  
Author(s):  
Fabián Fernández-Luqueño
Keyword(s):  
Nitrogen Fixation ◽  
Common Bean ◽  
Symbiotic Nitrogen Fixation ◽  
Early Stages

RHIZOBIAL INOCULATION AND P FERTILIZATION RESPONSE IN COMMON BEAN (PHASEOLUS VULGARIS) UNDER GLASSHOUSE AND FIELD CONDITIONS

2007 ◽  
Vol 43 (1) ◽  
pp. 67-77 ◽  
Author(s):  
M. ZAMAN-ALLAH ◽  
B. SIFI ◽  
B. L'TAIEF ◽  
M. H. EL AOUNI ◽  
J. J. DREVON
Keyword(s):  
Nitrogen Fixation ◽  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Symbiotic Nitrogen Fixation ◽  
Field Conditions ◽  
Nutrient Deficiencies ◽  
P Fertilization ◽  
Rhizobium Tropici ◽  
Symbiotic Efficiency ◽  
Rhizobial Inoculation

Osmotic constraints, nutrient deficiencies, especially phosphorus, and the lack of efficient strains of rhizobia in Mediterranean soils are major factors limiting symbiotic nitrogen fixation and yield in common bean (Phaseolus vulgaris). In order to improve yields, we investigated responses to rhizobial inoculation and P fertilization under glasshouse and field conditions with two bean cultivars, Coco blanc and BAT477. The nodulation test, using a hydroponic system in a glasshouse, revealed strong variability among 22 rhizobium strains of various origins, in their symbiotic efficiency, compared with Rhizobium tropici CIAT899. The introduced strains proved to be more efficient although some local rhizobia revealed high potential efficiencies. Glasshouse trials showed a significant effect of inoculation and P supply on nodulation, N content and shoot dry weight that varied with rhizobial strain. Field trials substantiated the glasshouse observations and emphasized the effects of cultivar-rhizobia interactions on symbiotic parameters and yields. It is concluded that inoculation with suitable rhizobia with supply of additional P is a technology that may improve symbiotic nitrogen fixation and yield in common bean in some soils under a Mediterranean climate.

scholarly journals Nodulation and nitrogen fixation in interspecies grafts of soybean and common bean is controlled by isoflavonoid signal molecules translocated from shoot

2011 ◽  
Vol 57 (No. 10) ◽  
pp. 453-458 ◽  
Author(s):  
M.H. Abd-Alla
Keyword(s):  
Nitrogen Fixation ◽  
Sustainable Agriculture ◽  
Common Bean ◽  
Nutrient Solution ◽  
Symbiotic Nitrogen Fixation ◽  
Signal Molecules ◽  
Legume Species ◽  
Root Extracts ◽  
Exogenous Application

  Identification of common signals of nodulation control among legume species will facilitate progress in enhancing symbiotic nitrogen fixation of legumes in sustainable agriculture system. Grafting experiments between soybean and common bean were carried out to evaluate whether a common shoot signals control the expression of hypernodulation among the tow species. Grafting of a hypernodulating soybean mutant NOD1-3 shoots to three cultivars of normally nodulating common bean roots resulted in hypernodulation on roots of three tested cultivars of common bean. The shoot control of hypernodulation may be causally related to differential root isoflavonoid levels, which are also controlled by shoot factors. Isoflavonoid analysis from root extracts of grafted plants showed that NOD1-3 shoots had markedly higher root isoflavonoid concentrations in roots of both NOD1-3 and common bean cv. Adzuki compared with self-grafts of common bean Adzuki. Exogenous application of daidzein, genistein, coumestrol, glycitein and in combination at concentration of 10 µmol to the nutrient solution significantly increased the nodule numbers of common bean cv. Adzuki. Therefore, the control of hypernodulation expression by isoflavonoid signal molecules translocated from shoot is common among legume species.  

scholarly journals Enhanced expression of Rhizobium etli cbb 3 oxidase improves drought tolerance of common bean symbiotic nitrogen fixation

2012 ◽  
Vol 63 (14) ◽  
pp. 5035-5043 ◽  
Author(s):  
C. Talbi ◽  
C. Sanchez ◽  
A. Hidalgo-Garcia ◽  
E. M. Gonzalez ◽  
C. Arrese-Igor ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Drought Tolerance ◽  
Common Bean ◽  
Symbiotic Nitrogen Fixation ◽  
Rhizobium Etli ◽  
Enhanced Expression

scholarly journals Global Changes in the Transcript and Metabolic Profiles during Symbiotic Nitrogen Fixation in Phosphorus-Stressed Common Bean Plants

2009 ◽  
Vol 151 (3) ◽  
pp. 1221-1238 ◽  
Author(s):  
Georgina Hernández ◽  
Oswaldo Valdés-López ◽  
Mario Ramírez ◽  
Nicolas Goffard ◽  
Georg Weiller ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Common Bean ◽  
Symbiotic Nitrogen Fixation ◽  
Global Changes ◽  
Metabolic Profiles ◽  
Bean Plants ◽  
Common Bean Plants
Sign in / Sign up

Export Citation Format

Share Document